. $50 may not seem like much at first, but thats $600 at the end of the year, plus what I would save on utilities to heat and cool the extra space, which to me $600 is a nice kayak or all the money I need for christmas presents etc.So from the perspective of a previous renter I would suggest some or all  of the following.

@Ryan Haase To follow-on to @Steve Babiak, there are several models of front-load, high-efficiency washing machines on the market which have built-in, in-line water heaters, which may be able to provide sufficient heat if your source water temperature is not too cold.  

They may loan less than $50k and I'd run the numbers with charging yourself rent to see if it makes sense. there is alot to consider who pays water, electric, heat, ac, etc and taxes.

Just make sure its a moderate climate as they don't provide tons of heat in cold winters.)3) Not understanding all the ways an appraiser can appraise small multifamily (read: overestimating ARV).

I have a good amount of experience in heating and cooling, especially installs and I know the basics of most other trades outside of carpentry.

Ideally 100 amp cuircuit breaker.2)  Roof - replaced in the last 15 years3)  Plumbing and Heating - updated the last 20-25 years. 

Owner pays heat, water, trash, and sewage. 

You need to put some heat on these guys. 

Not sure how to evaluate the market, uncover potential pitfalls and how to evaluate this specific property.The parcel is one acre and has a pair of large warehouses with electrical, but no heat (built in 2012).

The real problem it heat the room that I am fixing, right?