I’m hoping someone could help me figure out why I’m seeing the following things at the same time:
the resist point is <78% of homes but the heat resist is >74% of homes… I would have expected the two of them to be similar, not diverging… does this indicate I have a well insulated house but a very inefficient heat pump? (if anything, it’s the other way around)
The heat balance point is the outdoor temperature at which, when your heat runs, it can no longer raise the temperature in your home. High values are better, and that can mean good insulation, but it could also mean oversized unit. You have to look at some of the other data to decipher that. For example, your heat runtime per degree day is about average, which means your system is likely sized properly. Oversized units would have low runtime per degree day.
Your resist balance point is the outdoor temperature at which your home neither heats nor cools. It’s a value for sure, but not one to put a ton of weight in.
Ok, so if the resist balance point is calculated when no equipment is running, shouldn’t that always be equal to the set point? Or does it simply show how much passive heat is being generated in the home (from humans, cooking, sunlight, etc.) coupled with how well that heat is retained?
In that case, would it be fair to say that the figures are saying that my home is less efficient at heating (or retaining that heat) than average, but we generate (and/or retain) more passive heat than average?
I wouldn’t use the word “efficient” necessarily…it’s just that your home naturally stops warming or cooling around 55°F. Better for cooling, worse for heating.
If you’re talking about the heating balance point - no. The heat balance point corresponds to your heating system runtime, not anything passive.