HRV or ERV With or without dehumidification for SIPs house in Colorado situated at 7500′?
The house will be very tight and will require an air exchange system to limit retained moisture and prevent condensation in the SIP panels on the roof at cold temperature. The house is 2600 SQFT and is a story and a half. All internal SIP seams will be sealed with the tape that the SIP manufacturer supplied and all window and door frames will be seal with foam. The HRV or ERV will be connected to the baths, mudroom and kitchen for off-take and input into the bedrooms and living room. There will be no AC system installed. The heating system will be hot water baseboard radiators. It has been estimated that the heat loss will be 35KBTU at -15F.
The locality has very low humidity most of the time and can get quite cold (-20F) to warm (90F). There have been issues around mold formation in the roof panels due to condensation from warm moist air moving from the house through the roof panel.
So, which should be used HRV or ERV with or without dehumidification?
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