On Oct 12, 8:44 am, "curmudgeon" wrote:
If you replace it with anything, replace it with a gas/propane "space-pak".
All-in-one heat and AC just like the unit you have - outside package.

BTW...these days electric heat is often as economical at fuel-based heat.
What you have may be the most economical for renters.

Thanks for the advice...I am considering offering to pay their
electrical bills above a certain thresh hold. That way I can see how
high it really is and way the costs of replacement vs any savings.
Pat