Why ACH50 alone did not explain this home’s modeled heat-loss change
ACH50 rose 3.4%, leakage area at 10 Pa rose 7.6%, and modeled infiltration heat loss rose 9.3%. The differences show...
What would it take to verify this solar home’s actual savings?
The model estimates 8,898 kWh of annual solar generation. Here are the meter records and comparisons needed to check production,...
Heat-pump water heating: what this cost comparison actually shows
Rebuilding a 2024 modeled comparison puts the heat pump ahead of resistance electric, while gas remains cheapest under the study’s...