I looked on a few different HVAC web sites and I don't see parts listed except for  thermostats and complete electric baseboards.If hydronic, then yes, but you'd have to know how to drain the boiler, solder heating element to pipes, and refill/bleed all the air out.  

@Jazmine S. Well

Does this crack in the pavement really have anything to do with the swelling flooring or is it just a coincidence?

Some don't even know what ARV stands for or what the 50% rule is.Now there are investor Realtors out there and yes they know their stuff but they're far and few between and you need to dig for them if you want them to find deals.And besides in a lot of markets the MLS inventory is bleeding dry due to either Hedge Funds scooping up the deals or an influx of investors coming in so finding deals on the MLS is becoming more difficult is some markets these days.

These guys I swear are out to bleed people dry pretty sad.

Cumbersume compared to Autocad that I have a lot of hours on that bleeds 3D to 2D but it’s free so not complaining.

More specifically the crash in larger commercial multi-families bleeding over into (2-4) multifamily markets?

So you pay overage on the months that bleed over only. 

If it's hot water, you need to say whether you have baseboard or standing radiators. radiators need the air bled to allow water to move, baseboard often doesn't have bleeds and the line needs the air flushed out by opening the drains at the boiler.

@Lisa Gunn , in this particular case, the question isn't how bad the foundation is right now, but how much worse will it become due to swelling and shrinkage of the expansive clay.