How Long Does an AC Unit Last? Signs It’s Time to Replace Yours

If your air conditioner has been acting up lately, you’ve probably found yourself asking how long does an AC unit last before it’s time to call it quits. On average, most residential air conditioners last between 12 and 15 years, though the exact number depends on how well the system was maintained, how often it runs, and the quality of the original installation.

For Mokena homeowners dealing with hot, humid summers, that lifespan can shrink if a system has been pushed hard year after year without regular upkeep. Knowing what to watch for can save you from an unexpected breakdown during the worst possible week of summer.

What Determines AC Lifespan in Illinois Homes

AC lifespan in Illinois depends on a mix of factors that go beyond just the age of the unit. Chicagoland’s swing between brutal summer heat and freezing winters puts extra strain on outdoor components, and systems that run for long stretches during peak season tend to wear down faster than those in milder climates. A few things that influence how long your system will realistically last:

• How consistently the system received annual maintenance and filter changes.
• Whether the unit was properly sized for the home when it was installed.
• The overall build quality and brand of the original equipment.
• How often the system cycles on hot, humid days versus milder ones.

A well-maintained system installed correctly from the start has a much better shot at hitting that 15 year mark, sometimes longer. If it’s been a while since your last checkup, scheduling AC maintenance now is one of the simplest ways to protect the investment you already made.

Signs AC Needs Replacement

Some of the most common signs AC needs replacement show up gradually, which is part of why they’re easy to miss until the system finally gives out. Keep an eye out for the following:

• Your energy bills have crept up noticeably even though your usage habits haven’t changed.
• The unit is 12 years or older and repairs are becoming more frequent.
• Some rooms feel noticeably warmer or cooler than others no matter how you adjust the thermostat.
• Strange noises like grinding, banging, or squealing have become a regular occurrence.
• The system struggles to keep up on the hottest days, running constantly without ever quite catching up.

Any one of these on its own might not mean much, but a system showing several of these signs at once is usually telling you it’s nearing the end of its useful life.

When to Replace AC vs When to Repair It

Deciding when to replace AC instead of repairing it usually comes down to a simple comparison: the cost of the repair against the age and condition of the unit. A common rule of thumb technicians use is the 50 percent rule. If a repair costs more than half of what a new system would cost, replacement is usually the smarter long term choice, especially if the unit is already past the 10 to 12 year mark. Older systems also tend to use refrigerants and parts that are becoming harder and more expensive to source, which can make repairs less cost effective as the unit ages. If you’re on the fence, an AC repair technician can walk you through the real numbers before you decide either way.

The Real Cost of Waiting Too Long

Putting off a needed replacement can end up costing more than the new system itself. An aging AC unit typically loses efficiency as it wears down, meaning it uses more energy to produce the same amount of cooling it once did with less. That shows up directly in your monthly bills. There’s also the risk of a full breakdown happening at the worst possible time, like the middle of a July heat wave, which often means paying a premium for emergency service on top of the replacement cost you were already facing. Getting ahead of the problem with a planned AC replacement tends to be easier on both your schedule and your wallet.

What to Expect When You Replace Your AC

If you’ve decided it’s time, replacing an AC unit is a more involved process than just swapping in new equipment. A technician will typically evaluate your home’s size, insulation, and existing ductwork to make sure the new system is properly matched to your space, since an incorrectly sized unit can undercut the efficiency and comfort you’re paying for. Many homeowners also use the opportunity to upgrade to a more efficient system, which can mean lower bills for years to come. The team at TemperaturePro Mokena can walk you through the options and help you find a system that fits your home and your budget.

Frequently Asked Questions

How long does an AC unit last on average?
Most residential AC units last between 12 and 15 years with proper maintenance, though some can run longer or shorter depending on usage and upkeep.

What are the most common signs my AC needs replacement?
Rising energy bills, frequent repairs, uneven cooling, and unusual noises are among the clearest signs that a system is nearing the end of its life.

Is it cheaper to repair or replace an old AC unit?
If a repair costs more than half the price of a new system, or the unit is over 10 to 12 years old, replacement is usually the more cost effective choice long term.

The Bottom Line on AC Lifespan and Replacement

At the end of the day, the answer to “how long does an AC unit last” really comes down to maintenance, installation quality, and how hard the system has been working over the years. Most units make it 12 to 15 years, but the signs of trouble, rising bills, frequent repairs, uneven cooling, and strange noises, usually show up well before a total breakdown. 

Paying attention to those signs and acting on them early can save you money, stress, and the discomfort of losing cooling during a Mokena summer. If your system is showing its age, it’s worth scheduling a consultation before the next heat wave puts it to the test.

If you live in Mokena, you know how fast the weather can flip. One April morning, you’re scraping frost off your windshield near the Old Plank Road Trail, and by mid-June you’re sweating through a 92-degree afternoon with humidity that makes it feel more like 100. That rapid swing from a brutal Illinois winter to a swampy summer is exactly why your air conditioning system deserves some serious attention before the heat arrives—not on the first scorching day.

Waiting too long to schedule your AC tune-up in Mokena is one of the most common mistakes homeowners make every year. HVAC technicians fill up fast once temperatures spike, leaving you stuck in the heat and possibly facing an avoidable breakdown. This spring HVAC checklist will walk you through what you can handle yourself and what requires a licensed professional—so your home stays comfortable all season long.

Why Mokena Homes Need a Dedicated Spring AC Tune-Up

Recovering from the Illinois Winter

Will County winters are no joke. Between January thaw cycles, ice storms, and heavy snowfall, your outdoor AC unit—the condenser—has been sitting exposed to the elements for months. Road salt drift, debris blown in by wind, and the freeze-thaw expansion of moisture inside components can all cause subtle damage that goes unnoticed until you fire the system up. A spring tune-up catches these issues early, before they turn into expensive mid-summer repairs.

Improving Indoor Air Quality

Spring in the Chicago suburbs is beautiful—but it’s also allergy season. Tree pollen, grass, mold spores, and cottonwood seeds flood the air from April through June. Without proper filtration and a clean evaporator coil, your AC can actually recirculate these allergens through every room in your home. A thorough AC maintenance service, combined with upgrading to a high-quality air filtration solution like the Air Scrubber by Aerus, can dramatically improve your indoor air quality before the worst of allergy season hits.

The Ultimate DIY Spring HVAC Checklist

Before you call a pro, there are a few simple tasks any homeowner can tackle to get their system ready for summer. These steps take less than an hour and can make a real difference in efficiency and performance.

Outdoor Unit (Condenser) Cleanup

Start by walking out to your condenser unit and giving it a visual inspection. Clear away any leaves, dead grass, mulch, or branches that have piled up around the base over winter. Make sure there’s at least two feet of clearance on all sides for proper airflow. Gently rinse the exterior fins with a garden hose—low pressure only—to remove dirt buildup. Avoid pressure washers, which can bend the delicate aluminum fins.

💡 Pro Tip: Did you know? Cottonwood seeds are the #1 enemy of AC condensers in Mokena during the month of June! These fluffy white seeds can pack tightly against condenser fins and block airflow in just days. Check and clear your unit weekly during peak cottonwood season.

Filter Replacement

You may have heard the 90-day rule for air filters—but in spring, that rule changes. High pollen counts, increased dust from outdoor activity, and the transition between heating and cooling all mean your filter is working overtime. Check your filter now, even if it hasn’t been 90 days. If it looks gray and clogged, swap it out. For households with pets or allergy sufferers, consider upgrading to a MERV-11 or higher filter to capture more seasonal allergens before they circulate through your home.

Thermostat Testing

Switch your thermostat from “Heat” to “Cool” and set it five degrees below the current room temperature. Within a few minutes, you should hear the system kick on and feel cool air coming from your vents. If nothing happens, or if you hear unusual sounds like banging, grinding, or clicking, stop the test and schedule a service call before the summer rush. This quick test takes two minutes and can save you from discovering a problem on the first 90-degree day.

💡 Pro Tip: Smart thermostat upgrade tip: A Wi-Fi programmable thermostat gives you precise control over your home’s temperature from anywhere. Ask your TemperaturePro technician about compatible options that can reduce energy bills by automatically adjusting cooling when you’re away.

Professional AC Maintenance: What the Experts Do

There’s a clear difference between a homeowner cleaning the outside of an AC unit and a certified HVAC technician performing a professional AC maintenance service. Professionals have the tools, certifications, and expertise to inspect internal components that you simply can’t reach or safely test on your own. Here’s what a skilled technician will do during a spring tune-up.

Electrical & Component Inspection

Your AC system relies on a number of electrical components that degrade over time. Capacitors store and release energy to start the compressor and fan motors—when they weaken, the system struggles to start or shuts off unexpectedly. Contactors are electrical switches that can arc and pit with age, leading to system failure. A NATE-certified technician will test and measure both components, replacing anything that’s operating below spec before it causes a full breakdown mid-summer.

Refrigerant Level Check

Refrigerant is the lifeblood of your air conditioning system—it’s what actually absorbs heat from your home and releases it outside. Low refrigerant (often caused by a slow leak) means your system has to work harder to cool your home, driving up energy costs and placing stress on the compressor. If refrigerant levels drop too low, the evaporator coil can freeze over, causing your system to stop cooling entirely. Checking and adjusting the refrigerant charge is a task that legally requires a licensed technician due to EPA regulations—it’s not a DIY job.

Condensate Drain Flush

As your AC cools the air, it pulls moisture out of it. That moisture drips off the evaporator coil, collects in a drain pan, and flows out through the condensate drain line. Over time, algae, mold, and debris can clog that drain line—and when it backs up, water overflows into your ceiling, walls, or utility room. For Mokena homeowners with furnaces and AC units in basement utility closets, a clogged condensate drain can cause significant water damage. A professional tune-up always includes flushing this line to keep it clear.

Benefits of a Local AC Tune-Up in Mokena

Scheduling your spring AC tune-up with a local Will County HVAC company offers advantages that go beyond just keeping cool. Here’s why Mokena homeowners make it an annual habit:

Lower utility bills are one of the most immediate benefits. A well-maintained, properly charged, and clean AC system runs more efficiently—meaning it reaches your target temperature faster and uses less electricity to do it. Studies consistently show that annual preventative maintenance can reduce energy consumption by up to 15%, which adds up quickly during an Illinois summer.

Extended equipment life is another major factor. Air conditioners that receive regular maintenance routinely last 15–20 years. Systems that are neglected tend to fail early, often right when you need them most. Replacing an entire HVAC system is a significant investment—routine tune-ups cost a fraction of what a premature replacement does.

Priority service status is a benefit that often goes overlooked until a heat wave hits. When you’re an existing maintenance customer with TemperaturePro, you move to the front of the line during high-demand periods. Whether you need an urgent AC repair call or a same-day inspection, established customers always get priority scheduling.

Finally, warranty protection is a concern many homeowners don’t think about until it’s too late. Many manufacturers require documented annual maintenance to keep their warranty valid. Skipping a tune-up could void your coverage and leave you paying out-of-pocket for a repair that should have been covered.

Schedule Your Mokena AC Maintenance Today

Whether you’re near Mokena Town Square, the Old Plank Road Trail, or anywhere else in the southwest suburbs, now is the time to get your AC ready for summer. Late March through early May is the sweet spot for spring AC tune-ups in Mokena, before humidity settles in and appointment slots fill up fast.

TemperaturePro Mokena’s NATE-certified technicians will walk you through exactly what they find and what it means—no surprises, no pressure. We offer upfront pricing and transparent service from the moment we arrive.

Ready to book? Schedule your spring AC tune-up online or call us today to speak with a local HVAC expert. Don’t wait until the heat hits—your comfort depends on it.

Frequently Asked Questions

When should I schedule an AC tune-up in Mokena?

Ideally, between late March and early May, before consistent summer humidity arrives in the Southwest Suburbs. Scheduling early ensures you get the appointment time you want and that any issues are resolved well before the first heat wave.

How much does a professional AC tune-up cost in Mokena, IL?

Professional AC tune-up pricing in the Mokena area typically ranges from $75 to $150 for a standard maintenance visit. TemperaturePro frequently offers seasonal spring specials—contact us directly to ask about current pricing and any available promotions.

Is a yearly AC tune-up really necessary?

Yes. Manufacturers often require documented annual maintenance to keep warranties valid, and regular service can reduce energy costs by up to 15%. Skipping annual maintenance is one of the top reasons air conditioners fail prematurely.

Can I clean my AC unit myself?

Homeowners can safely clear debris from around the outdoor unit, rinse the condenser fins gently, and replace air filters. However, internal electrical testing, refrigerant level checks and recharging, and condensate drain flushing all require a licensed HVAC technician.

How long does a professional AC tune-up take?

A thorough spring AC maintenance visit typically takes 60 to 90 minutes, depending on the age and condition of your system. Our technicians will walk you through their findings before leaving.

Does TemperaturePro serve Frankfort and New Lenox in addition to Mokena?

Yes! TemperaturePro Mokena serves homeowners and businesses throughout the southwest suburbs, including Frankfort, New Lenox, Tinley Park, and the surrounding Will County area.

With summer just around the corner, now is the best time to have a new AC installed so you can stay comfortable in the warmer months, but being such a large project, it can naturally feel a little daunting to take on. To that end, understanding your AC installation cost in Illinois is essential to avoid being overcharged. Whether you’re replacing an outdated system or installing a brand-new one, prices can vary rather significantly depending on a few key factors. In this pricing guide, we’ll break down the average new air conditioner price in 2026 and what homeowners in areas like Mokena can expect to pay.

Average AC Installation Costs in Illinois

The cost of a new air conditioner in Illinois varies widely, typically ranging from $3,500 to $12,000. For a standard, new installation, you can expect an average of $5,500.

For simpler replacements, for example, when you’re looking to swap out an existing unit without any major upgrades, the cost range falls between $3,500 and $7,500. That said, in metro areas like Chicago, you can expect things to be a little more expensive, with the AC replacement cost often ranging from $4,000 to $12,000, depending on the size of your chosen system and the complexity of the installation itself.

Overall, be it for a replacement or a new unit, most homeowners planning an AC replacement in Mokena, Illinois, and the surrounding area will spend between $5,000 and $10,000 for a complete installation in 2026.

The Difference Your System Type Makes

Now that you have a rough idea of the overall price range, let’s begin to look at what affects that range, starting with the type of system you choose, which has a major impact on your total cost. Here is a general breakdown:

Central Air Conditioning Systems

Central AC systems are the most common choice for homeowners in Illinois. These systems are the most expensive, typically costing between $5,000 to $12,000, depending on size and efficiency, but often provide the most reliable and comprehensive cooling when the weather warms up.

Ductless Mini Split Systems

Ductless systems are an ideal choice for homes without existing ductwork in place. Without the need to install new ductwork, prices for these mini-split systems generally range from $2,000 to $5,000 per zone, making them more affordable for smaller spaces, but not the best choice for larger homes.

Window and Portable Units

These smaller units are the most budget-friendly options, usually costing $100 to $800, but they can only cool individual rooms and are not suitable for whole-home comfort. The cost of running multiple smaller units around your home will also unnecessarily drive up your electricity bill, so these units shouldn’t be considered an alternative to a full AC system in larger homes.

What Affects An AC Replacement Cost in Mokena

Mokena homes come in all different shapes and sizes, with several key factors coming together to influence your overall AC replacement cost in Mokena and throughout Illinois. Here are the most common factors you’ll need to consider when budgeting for a new AC system.

System Size and Home Square Footage

Larger homes naturally require higher-capacity systems in order to effectively cool the space, which in turn increases costs. AC units are measured in tons, and like most things, bigger systems come with higher price tags.

Energy Efficiency Rating

More efficient units with higher SEER ratings come with a higher upfront cost but can help lower your energy bills over time. For this reason, many Illinois homeowners choose mid to high-efficiency systems for the long-term savings they provide.

Installation Complexity

If your home needs ductwork modifications or installation, electrical upgrades, or additional components, your installation cost will increase along with the added work. For example, ductwork changes tend to be the most expensive additions, and can add anywhere from $500 to $2,000 to your total price.

Labor and Local Pricing

Labor costs in Illinois are close to the national average, but when you choose to go forward with your installation or upgrade will absolutely affect the price. The higher demand during peak summer months can drive prices up, so it’s best to plan ahead and get everything installed before the hot weather hits.

Permits and Codes

Certain areas around the US require permits for HVAC installation, which will add to the overall cost. Your contractor typically handles this, but it is included in your estimate and final price tag.

When Should You Replace Your AC Unit?

Not all AC issues require full replacements and new installations. When you work with TemperaturePro, we’ll give you our honest opinion on whether a new unit is required or if a repair is the better option.

Providing it has received proper, regular maintenance, most air conditioners last about 12 to 15 years. If your system is older or if it requires frequent repairs, a complete replacement might be the most cost-effective option. We recommend using the “$5,000 rule,” which suggests replacing your system if the repair costs, multiplied by the unit’s age, exceed $5,000.

Tips to Save on AC Installation Cost in Illinois

Installing a new AC system is a significant investment, but there are a few ways to bring both the upfront and overall costs down:

• Schedule During Off-Season: Spring and fall installations often come with lower prices due to reduced demand.
• Take Advantage of Rebates: Federal tax credits and local utility rebates for energy-efficient systems can save you hundreds or even thousands.
• Get Multiple Quotes: Comparing estimates from licensed HVAC contractors helps ensure you get competitive pricing.
• Choose the Right Size System: Oversized or undersized units can lead to inefficiency and higher long-term costs.

Your new air conditioner price in Illinois really depends on the size of your home, the type of system you choose, and general installation needs. While most homeowners spend between $5,000 and $10,000, high-efficiency systems or particularly complex installations can push these costs higher.

If you are considering an upgrade, working with a trusted local HVAC provider like TemperaturePro can make all the difference when evaluating AC replacement cost in Mokena. If you’re ready to schedule your service, or if you just have more questions, call us at (708) 304-4028 or contact us online today!

Ductless mini split HVAC systems have been gaining popularity in recent years as an affordable and efficient alternative to older AC systems. With that newfound popularity comes no shortage of questions and concerns from homeowners and building managers looking to learn more. If you’ve recently installed a ductless mini split system in your home, or if you’re considering it as an option, a common question you may be asking is: Do they turn off when the set temperature is reached?

The short answer is no, but that’s not a bad thing!

How mini splits work.

Ductless mini split systems use something called inverter technology. This allows them to adjust the speed of their compressor dynamically to meet your heating or cooling needs. They differ from traditional HVAC systems because they don’t simply turn on or off to heat and cool. Instead, mini splits regulate their air output to deliver just the right amount of conditioned air needed to maintain the temperature you set. This means that rather than having an intermittent blast of air that quickly and noticeably changes the temperature in the room, mini splits provide a constant, but weaker stream.

So do they ever turn off?

Yes, mini split systems do turn off, but not in the same way a traditional HVAC system does. When the desired temperature is reached, a mini split system will significantly lower its fan speed rather than shutting off completely. This helps in a few ways, making it easy to maintain a constant temperature, reducing energy waste, and minimizing the overall wear caused by the usual cycling that traditional AC systems experience, in turn requiring less maintenance.

That being said, in very mild weather, or particularly well-insulated buildings, a ductless mini split system may well turn off entirely for a while before it restarts. In short, they can and do shut off completely, but only under certain conditions.

This way of conditioning your home is much more efficient than alternative AC systems, which simply blast a powerful jet of air until the thermostat tells them to stop. Mini split systems, running continuously at a lower speed, not only keep a more consistent temperature, but they also often do so at a lower overall energy cost.

When you should worry about your system running non-stop.

As we’ve mentioned, it’s normal for mini split systems to run constantly. However, the exception to this is when the system runs for long periods of time at high power. If you have a ductless mini split HVAC system and you’ve noticed it’s running too high for too long, this could be an indication of:

• A dirty filter or coil
• An issue with the refrigerant
• Improper size for the room

If your mini split system appears to be struggling or running higher than usual, we recommend booking an inspection with TemperaturePro to take a look before your energy bill starts to rise.

Ductless mini split AC systems are designed to be smart, efficient, and responsive to ever-changing temperatures. While they don’t often turn off completely when your desired temperature is reached, that is a big part of what makes them a more efficient option compared to more traditional alternatives.

Have more questions about ductless mini split systems? Give us a call at (708) 390-7165, and we’ll be happy to help with questions and advice!

That blast of cool air on a warm Mokena day is something we often take for granted. But what happens when your air conditioner starts acting…frosty? While it’s counterintuitive, it’s not uncommon for an AC unit in Mokena to freeze, even on a warmer day. While a frozen evaporator coil can come as a surprise, there’s no need to sweat it (at least not too much).

At TemperaturePro Mokena, we understand how crucial a functioning AC is, especially during the summers. That’s why we want to shed some light on this problem, explain why it happens, and what you should do if you suspect a frozen evaporator coil at your home in Mokena.

What is an Evaporator Coil and Why Does it Matter?

Think of your evaporator coil as the heart of your air conditioning system’s cooling process. Located within your indoor unit, this coil is filled with refrigerant. As warm air from your Mokena home is blown across the cold evaporator coil, the refrigerant absorbs the heat. This cooled air is then circulated back into your living spaces, providing that much-needed relief.

The Chilling Truth: Why Evaporator Coils Freeze Up

So, why would this vital component suddenly turn into an ice block? Several factors can contribute to a frozen evaporator coil:

• Dirty Air Filters: The Number One Culprit. Just like the Illinois dust and pollen can accumulate on your windows, it can also clog your AC’s air filter. A dirty filter restricts airflow, preventing enough warm air from passing over the coil. This lack of warm air causes the coil to become too cold, leading to condensation freezing on its surface. Regularly changing your air filter is the easiest way to prevent this!
• Restricted Airflow Elsewhere: Beyond the filter, blocked return or supply vents, closed dampers, or even a dirty blower wheel can hinder proper airflow across the coil. Make sure furniture and other obstructions aren’t blocking your vents.
• Low Refrigerant Levels: A Silent Problem. Refrigerant is the lifeblood of your AC. If your system is low on refrigerant (due to a leak), the pressure in the system drops, causing the evaporator coil to get excessively cold – cold enough to freeze moisture. This is a problem that requires professional attention.
• Mechanical Issues: Sometimes, a malfunctioning blower motor won’t circulate air effectively, even with a clean filter. Thermostat problems that cause the AC to run constantly can also lead to freezing.
• Running the AC in Cold Weather: While Mokena doesn’t often see extended periods of cold during typical AC usage, running your air conditioner when outdoor temperatures are consistently below 60°F can sometimes cause the coil to freeze.

What Should a Mokena Homeowner Do If They Suspect a Frozen Coil?

If you notice reduced airflow, weak cooling, or visible ice on your indoor AC unit, here’s what you should do:

• Turn Off Your AC Immediately: This is crucial to prevent further damage to your system.
• Switch Your Thermostat Fan Setting to “ON”: This will circulate warmer room air over the frozen coil, helping it to thaw.
• Check and Replace Your Air Filter: As mentioned, a dirty filter is a primary cause.
• Ensure Vents Are Open and Unobstructed: Take a quick walk around your home to check for any blockages.
• Wait for the Coil to Thaw Completely: This can take several hours. Don’t rush the process.
• Monitor After Thawing: Once thawed, turn your AC back on and see if it cools properly. If the coil freezes again, it indicates a more serious underlying issue.

When to Call the Mokena HVAC Experts at TemperaturePro

While some causes like a dirty filter are easy to address yourself, a recurring frozen evaporator coil often signals a more complex problem, such as a refrigerant leak or a mechanical malfunction. These issues require the expertise of a certified HVAC technician.

Don’t let a frozen evaporator coil leave your Mokena home feeling like a sauna! If you suspect a problem or want to ensure your AC system is running efficiently and reliably, book online with the team at TemperaturePro Mokena. We’re your local experts for AC repair, maintenance, and installation.

6 Factors While Replacing A System

Choosing a heating/cooling system replacement is an investment in the future. The combined average service life of a furnace and central air conditioner is over 15 years. So, whatever choice you make now, you’ll be living with the results for some time to come. This includes the heating or cooling performance of the system, which has a definite impact on your day in, day out household comfort. The new unit’s energy efficiency will also directly affect the operating costs you’ll be paying every month for many seasons to come. The conclusion is clear: for optimum comfort and lowest monthly expenses, making an informed choice pays off now and years from now.

Here are six important factors that should be part of the decision-making process when choosing a heating/cooling system:

• Get The Right Size. We’re not talking about feet and inches. In HVAC terms, “sizing” refers to the BTU capacity of a specific unit. For a furnace, it’s the BTUs of heat per hour the unit can generate. For an air conditioner, it’s the BTUs of heat the unit can extract from indoor air per hour. Each house has very individualized BTU requirements depending on factors such as square footage, the number of windows, the amount and type of insulation and other characteristics such as the air-tightness of the structure. Guesstimates or “rule-of-thumb” generalities aren’t accurate enough to properly size a unit. Utilizing industry-standard sizing software, a qualified HVAC technician can perform a sizing survey to determine the precise BTU requirements of the house, then identify a heating/cooling system with the capacity specs that match these requirements. Getting sizing right is a critical first step: oversized and undersized units waste energy, cost more to operate and tend to provide disappointing comfort performance you’ll be stuck with as long as the system is installed in the house.
• What About Efficiency? Energy efficiency is built-in to a furnace or air conditioner. Manufacturers are required to determine energy efficiency of a unit by standardized lab tests. A unit’s energy efficiency rating is shown on the yellow EnergyGuide sticker affixed to all new units. For an air conditioner, efficiency is expressed by the SEER (Seasonal Energy Efficiency Ratio) rating. The higher the SEER numeral, the more energy-efficient the unit is and the lower monthly operating costs will be. Today, federal regulations require a minimum SEER of 13 or 14, depending on which region of the country you live in. High-efficiency air conditioners deliver SEER ratings over 20 at a higher upfront purchase price. Furnace efficiency is expressed by the Annual Fuel Utilization Efficiency (AFUE) rating. The higher the AFUE percentage, the more efficient the unit. Standard efficiency furnaces have an AFUE of 80% while more expensive high-efficiency units that capture spare heat from the exhaust stream offer AFUE over 90%.
• Consider Short Term And Long Term. It’s important to strike a balance between initial expense and future costs. Be cautious about considering only the upfront purchase price when selecting an HVAC system. A lower-efficiency unit from a lesser-known manufacturer may indeed have a lower sticker price. However, higher monthly operating costs year after year will erase that saving and expenses imposed by reduced reliability and more frequent repairs may add up, too. Often, cut-rate units don’t offer warranty terms that are as consumer-friendly as units from recognized, name-brand manufacturers, either. On the other hand, an advanced unit with cutting edge, very high-efficiency technology may come with such a high initial price tag that the payback time from lower operating costs may be unacceptably long for you—particularly if you aren’t planning to remain in the home indefinitely.
• Replace Both Sides Of A Central AC. A central air conditioner consists of an indoor air handler/evaporator coil and the outdoor condenser/compressor unit. Don’t attempt to save money by replacing only one half of the system or the other. All parts of a central AC are designed and engineered at the factory to operate as a matched set. Attempting to mix brand new components with old parts of the existing system will result in reduced efficiency, higher monthly expenses and, usually, shorter expected service life of the entire system, too.
• Get A Professional Installation. Proper installation of a new HVAC unit will affect the performance and efficiency of the unit for as long as it’s in the house. Installing a central air conditioner or furnace isn’t a job for a general carpenter or a local “jack-of-all-trades” handyman. It requires specific training and expertise as well as specialized tools. An unprofessional installation that doesn’t meet industry standards can negate all the improvements in monthly expenses and household comfort you expect and deserve from a new HVAC system. Make sure it’s installed by a qualified HVAC contractor with proper certification.
• Evaluate Other Household Factors. Certain other issues in a home will directly affect the performance and efficiency of your new HVAC system. For example, it’s false economy to connect a brand new HVAC system incorporating the latest technology to old, deteriorating household ductwork. You will lose a large volume of conditioned air through duct leakage before it even reaches the rooms it’s supposed to cool or heat. Have the ductwork tested for leaks at the time the HVAC system is installed (in many areas, local codes now require this.) If the leakage rate exceeds standards, your HVAC contractor can present options to seal the ductwork. Similarly, if you haven’t upgraded the insulation in your home in many years, it’s probably under-insulated by today’s standards. To make sure you get the full efficiency and performance improvements your new HVAC system is designed to deliver, check the level of attic insulation and upgrade if necessary to meet current Department of Energy recommendations for your local climate zone.

For professional assistance in selecting a new HVAC system, as well as qualified installation that meets industry standards, contact the heating and cooling experts at TemperaturePro by contacting us today!

Smart Thermostats

When programmable thermostats hit the market some 20 years ago, homeowners who installed them realized energy savings. Their only effort was to program the thermostat to match their occupancy patterns. Anyone coming home unexpectedly had to override the thermostat, which if entered wrong, could wipe out energy savings.

As Wi-Fi apps proliferated, HVAC engineers found that they could combine the best that programmable thermostats offered with the intuitive intelligence of smart technology. Since then, smart thermostats give homeowners the same energy savings, if not more, without the learning curve for both saving energy and staying comfortable.

The technology embedded in smart thermostats now gives you control of your home’s HVAC system from anywhere you can get an internet signal. Besides energy savings, you have complete control over your home’s comfort system. By choosing the right thermostat and apps, you will also have detailed insight into your system’s performance.

Energy Savings

Unlike the learning curve associated with programmable thermostats, smart devices teach themselves. Once placed, the thermostat takes a few days to learn your thermal preferences and occupancy patterns. Sensor technology simplifies changing the temperatures for unexpected occupancy.

If your electric provider uses smart technology, you’ll be able to track your energy use on an hourly basis from anywhere. You can see the relationship between outdoor temperatures and your HVAC system’s energy usage.

The data you access will show you when your HVAC system runs the most. If those time periods occur when your home isn’t occupied, you can easily change the indoor temperature wherever you are to save energy and money. Reducing the amount of work your HVAC system does also reduces the wear and tear, which lowers the cost of repairs and increases its lifetime.

Your utility company may also offer an incentive for you to upgrade to a smart thermostat. Their representatives can also help you find a time-of-use plan (TOU) that will likely save money on your electric bill. Electric providers base their pricing on peak and nonpeak hours. These plans encourage users to use more energy during off-peak hours when the utility company pays less for it. When demand is high, you pay considerably more for each kilowatt you use. Switching to a TOU plan could lower your monthly energy bill.

Integration with Smart Home Systems

Some smart thermostats are compatible with devices like Amazon’s Echo. You can ask Alexa to change the temperature from anywhere in your home, whether it’s in the kitchen as you cook, or from the bedroom on a cold, winter night.

Thermostats that work with smart home hubs can coordinate opening your garage door or exterior doors and changing the temperatures at the same time. This feature works especially well in a well-insulated and leak-free home, since they take less time to heat or cool.

Improved Comfort

Many models of smart thermostats offer remote sensors you can place in all your rooms. Most homes have one thermostat typically placed in a hallway. The temperatures throughout your home will vary considerably because their thermal loads differ from the conditions in the hall.

When you put a remote sensor in a room and it’s uncomfortable to you, you can set the thermostat to cool or heat the air to the temperature you want. Unless you have a zoned HVAC system in your home, this ability is likely to raise your energy costs, but it will increase your comfort and give you control over the thermal conditions in that particular room.

Learning Curves with Smart Thermostats

Unlike programmable thermostats, smart devices learn your habits within a few days time, which eliminates the need to program them based on home occupancy patterns. The Nest, for example, uses a sensor that detects when your home is occupied and when it’s empty. It uses those data to establish the temperature setbacks that save energy.

Sensors on smart thermostats have simplified programming. They can tell when your home is empty, and set the temperature back automatically. Should someone come home unexpectedly, the sensor will turn the system back on.

These thermostats also give you the ability to override any settings the current home occupant has specified from anywhere. You can also find thermostats that are password protected, which gives just the people you choose permission to alter temperature settings.

Major Brands

• The first smart thermostat on the market was the Nest, and it’s still a market leader. It has a user-friendly interface and is compatible with most HVAC systems.
• The Ecobee is another major brand with similar features as the Nest.
• Honeywell, one of the nation’s oldest companies, also offers a smart thermostat at half the price of either the Nest or Ecobee without sacrificing any features. Other smart thermostat brands are available and a professional from TemperaturePro can help you choose which would work best for your home.

System Compatibility

You may have to do some homework to determine whether your HVAC system is compatible with specific types and brands of smart thermostats. Newer systems generally have greater cross-compatibility than older units.

Thermostat wiring is normally the limiting factor with regard to compatibility. An expert from TemperaturePro will help you discover which thermostats will work. Installing a device that’s not electrically compatible could damage your HVAC system’s control board.

Some manufacturers offer their own smart thermostats, and the advantages to these lie in their ability to report to you how the system is operating. You’ll receive alerts about when it needs professional maintenance, if a component isn’t functioning at full capacity, or even when to change the air filter.

Heat Pumps Are Special

During the summer, heat pumps work just like air conditioners, but that all changes in the winter when they switch to heat. Most heat pumps use an auxiliary heating coil to provide emergency back-up heat. This coil uses electricity to supply heat whenever the heat pump can’t warm your home adequately within a given period of time.

Electricity alone is the least efficient way to provide home heat, and unless your thermostat knows how to shut off the emergency heat setting, the cost of heating your home will increase.

When you choose a smart thermostat, be sure that it has the capacity to override the emergency setting. The technical term is an intelligent or adaptive recovery thermostat. You may also see the term “balance point” used with compatible smart thermostats. Your TemperaturePro technician will know the best brands and types of thermostats to use with a heat pump to maximize savings in the heating mode.

Bottom Line

You don’t need a smart phone to enjoy the benefits of a smart thermostat, and they are many, like energy savings, convenience, control and comfort. The technicians from TemperaturePro can help you select the most suitable for your HVAC system, lifestyle, and your energy saving goals. Contact us today!