Did you know that, if you have a central air conditioning system, that it is usually a split system. This means you have indoor equipment and outdoor equipment that make up the entire system. The indoor equipment is called the air handler. So when you are making a decision about your HVAC system and the question of a variable speed air handler versus a single speed air handler comes up, what is the best choice? Well, I’m glad you thought to ask.
Let me explain what “variable speed” means in reference to your air handler. Lennox Home Comfort Systems describes it this way, “‘Variable speed’ refers to the fan motor inside the air handler—the indoor part of an air conditioner that moves cooled or heated air throughout the ductwork of your home. An air handler is usually a furnace or a blower coil. Unlike conventional single-speed motors, a variable speed motor runs at a wide range of speeds to precisely control heated and cooled air throughout the home.”
There are several advantages to using a variable speed air handler.
1. Variable speed motors cost less to operate because they usually run in low speed, unlike single speed systems which run in “high” 100% of the time.
2. Because variable speed air handlers gradually work their way from low speed to high speed, there is no blast of air from the vents.The transition when the machine turns on is very mild and it can be difficult to even tell when the machine actually turned on.
3. The noise level is much lower for variable speed air handlers because they usually run in low speed.
4. Variable speed air handlers make it much easier to create different zones in your home so that you can heat or cool one room differently than another room.
5. Variable speed air handlers do a much better job of removing humidity from the home, making you more comfortable in your home. Some systems can remove as much as 24 gallons per day from a home!
More comfortable, more efficient, and less noisy….sounds like a winner to me. Variable speed air handlers always trump single speed ones. Just make sure that your indoor and outdoor equipment are correctly matched by your HVAC sub. This will help your machine to run at its highest potential efficiency.