Although heat is included in the name, you can use a heat pump for air conditioning. It works by transferring heat instead of creating it (the way a furnace does) which is why it is used as a dual function system. It’s true that heat pumps can be very efficient, but most air conditioners are similar in terms of their efficiency. Just look at these two high quality systems from Lennox.
SEER is an efficiency guideline for ACs, and the higher the number, the better it is. The difference between 23.5 and 26 is not astounding however, and the efficiency differs depending on the model. On the other hand, HSPF is a rating system that stands for “heating seasonal performance factor” and is unique to heat pumps. It tells you how efficient the unit is at heating. You can tell from these examples that as far as energy efficiency goes, air conditioners are about equal, if not a little better depending on the model you choose. The biggest difference between the two is that heat pumps can also warm up your home while an AC only cools.
Heat pumps are most effective in warmer climates with milder winters, save for some integrated systems that use heat pumps as a backup, such as with a geothermal system. We encourage you to consult with a ACE certified HVAC technician who has experience in your area before getting your heart set on a heat pump. If the equipment just isn’t right for your area, you could have extremely high electric bills. Once the temperature gets too low, it’s difficult for the heat pump to draw heat out of the air and it may never reach the temperature set by your thermostat. This means you could end up running your heat pump non-stop or switching on emergency heat 24/7 during colder months which drives your energy consumption through the roof.
A furnace is a more powerful heating system and is necessary for certain colder climates. That’s because a heat pump has issues when the temperature hits about 40 degrees Fahrenheit, or 4.4 degrees Celsius. As odd as it may sound, during cold weather, a heat pump is designed to remove heat from the outside air and use it to raise the temperature of the inside air. Even when it feels cold outside, there is still plenty of available heat for the heat pump to function well, but at exceptionally low temperatures there is not enough heat available outside to warm the inside air to higher temperatures needed to stay warm. So while a heat pump may be great during the winter months for someone in Daytona Beach, someone living in upstate New York with a heat pump would likely also need a furnace for the more extreme temperatures. If freezing temperatures hit and you don’t have a furnace to take over, a heat pump could run for hours trying to keep your home warm enough.
In some areas, heat pumps can be used with geothermal systems, and the heating source is better for the environment since it is not burning fossil fuels and, instead, uses the Earth’s natural temperature to heat and cool. This is a wonderful alternative for certain northern climates, but more land must be available in order to install the needed piping for a geothermal system.
Just what you needed – one more thing to think about when it comes to your home comfort; but, remember, it’s important to consider the pros and cons of each heating and cooling system so you don’t end up investing in a system that shuts down when extreme temperatures hit, or investing in two systems when one would suffice.
If you’re not sure which system would work best for you, call Atmostemp Service Experts to schedule a free in-home quote. We are here to answer any and all of your questions to ensure you make the right decision for your home.
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