I have a Lennox gas furnace that's a couple of years old. Actually a propane furnace. Model G43UF. It has a blower that "ramps" up to speed.
I have a Lennox HP13 heat pump that's a couple of years old. Run of the mill unit.
I have a price for a ground source heat pump system. It's a lot of dollars. But I can't decide if it's worth it. I need to talk to the installer again about how he arrived at his break even point. And also if this other idea makes sense.
Should I purchase a Lennox XP19 to replace my current HP13? I know that unit requires a variable speed blower and mine is not. Can that blower be changed to variable speed? I wonder if I would be better off going that route vs the ground source? Just trying to figure the most cost effective way to go here. If his calcs are correct he says that with the ground source that I could heat and cool my 4000+ sqft house for $881 a year and have the hot water savings.
Thanks to all,