Forced air or radiators?

LOL, actually, the bar code on your toothpaste emits a very, very low radiation level that "bleeds over" like radio waves over 20,000,000 identifiers, you're wearing it on your teeth and the NSA can tract you anywhere you go at any time.

And if radiators heat the place, the pipes and radiators sometimes have already experienced damage (cracked or removed for the metal).

The last house we did had a combination of PVC, PEX, garden hose, radiator hose, and duct tape (no lie!). 

I replaced the a/c, rebuilt transmission, replaced steering rack, radiator and catalytic converter.

In the middle of the summer if you go out an hour or two after dark in the city it is one temp and you can feel the heat radiating off of the block walls and asphalt streets still.

No more oil changes, transmission fluids, radiator fluids what not - and the solar panels on my roof charge it daily.

If its steam you will have to replace all radiators as they are not the same.

I took 5 radiator and space heaters by her house yesterday. 

Anita Andrews if all the piping etc runs into basement you should be able to separately meter heating (if it's radiators/has forced heat), call PGW to add gas meters.