Humidity, Air Intake, and Heating Requirements
Could someone explain or point me to the math for calculating the kind of heating and equipment necessary to maintain <x ppm CO2 in a roughly passive house (e.g., 0.5 ACH) with y occupants in, e.g., zone 6, while maintaining at least 40% indoor RH at 70 F in winter?
From a public/clinical health perspective, it’s important to maintain low CO2 and moderate humidity. This offsets some of the energy savings that an airtight house would otherwise enjoy.
The relationship between ambient ppm, ACH, and the number of occupants (exhaling ~50k ppm in their breath) is relatively straightforward, but I’m unclear on how to factor in the demands for humidity, and also on how such high air intake rates might increase heating needs.
GBA Detail Library
A collection of one thousand construction details organized by climate and house part