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I live in the Midwest where there is hot hummid summers and cold winters. What do most people do for fresh air ventilation. It is a new construction with a pretty tight envelope.

I have a dual fual heat pump and gas furnace. The heat pump is a 2 stage unit and the furnace is a 2 stage unit as well. Am I correct in thinking I need a 4 heat and 2 cool stage thermostat. Such as a Honeywell prestige iaq

I am looking to buy a dual fuel heat pump and propane system online. I need 40000 BTU'S heating and 24,000 Cooling. It also has to be a 2 stage compressor and at least 16 SEER efficiency for a local energy coop rebate. It also needs to be at least 95 percent efficiency furnace. The problem I...

I am in the process of building a new home in southern IL. 1400 sq ft main level and full finished basement. home is 2x6 construction with dense pack cellulose wall insulation and R49 cellulose ceiling insulation. basement walls are insulated with 1/2" foam board and R11 fiberglass. Windows...