High efficiency HVAC
For the whole house we have a high efficiency HVAC and for the garage we have a Mitsubishi. The advantage of the high efficiency HVAC is the variable compressor and air handler. Basically, the speeds vary in accordance with demand. Inside the house the temp stays almost constant - you don’t have the on/off cold/warm feeling from traditional AC or Heat units. Our unit brand is American Standard - which Consumer rates high along with Carrier. At the time we bought it, Munns quoted almost 4k more than Chuck for the American Standard. We keep our house at 73 degrees almost year round. During this heat wave our unit ran 20 to 23 hours each day between 30% to 60%. Our electric bill is roughly $50 lower than the Carrier unit that was in place when we moved in. Basically, the same holds true for the cold weather months. Bottom line the high efficiency units keep the home at a constant temp at a lower energy cost, but there initial cost is several thousands dollars more. The Mitsubishi unit for the garage is 12,000 btu and we keep the garage at 77 degrees. It too is high efficiency and runs similar to the HVAC for the home. I did insulate the garage doors and above the garage which made a significant improvement. (Our house faces east).
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