I an planning to split the sewer, water and heat.

The heat combined with the intense sun (UV damage) would deteriorate and degenerate the wood, rendering it not at the same level that it was originally [Wood products are rated/graded, you will see this stamped on wood when you buy it and it is called out by architects and engineers]So unfortunately no, I seriously doubt that the wood is going to be approved.

Imagine not just a pool in the winter people want it heated.

The mold that was there was sort of faint - white fuzzy stuff from the house not being heated or air conditioned during it's time being for sale. 

Also, I don't know what the problem is with heating and cooling in most hotels but I find I can control temperature much more easily in Airbnbs.I suspect that nightly rates for many urban Airbnbs have risen as regulations have reduced competition.

I also have a no windows open clause while heat runs. 

@Alan Asriants On 3 of my 7 properties I am switching rent increases for new heating systems that will have the tenants paying for their own heat.

Your rental has to have a new heating system - that’s $10k being drawn from that HELOC that has no direct increase in cash flow to cover the debt payment. 

Why I would suggest you do it: Hiring a tax professional short cuts many people in building wealth as they often learn strategies from these folks that turn up the heat on their investing strategies.

Most likely radiant floor heating.