Part 3: Reading heat-pump efficiency and capacity ratings
Capacity, efficiency and seasonal ratings answer different questions. Use them together with the home’s heat loss and the exact matched...
Part 2: Choosing, Installing, Maintaining, and Operating Air Source Heat Pumps
Cold climate air source heat pumps (CCAHPs) are a specialized type of air source heat pump that operates efficiently in...
Your HRV is running. Is it actually delivering balanced ventilation?
Check both airflows, the operating sequence and the design target. An illustrative comparison shows why equal supply and exhaust can...