@Harpreet Singh in the Pacific Northwest where it is damp for long periods of time radiant heat is far superior to forced air (we also don’t really need air conditioning , although that is changing with global warming) so having forced air isn’t as needed.

BUT it was like herding cats to get work done, then had to listen to emotional, demanding 'your never home' wives, too much beer on the rehab & frustrations galore.

I have herd of some online classes.

Yes it may cost a little bit more to hire someone to come in and install the radiant floor heating system but I spent 3 weeks running pipes and gas lines and hooking up the boiler.

I have been doing a lot of research lately and I have herd many times over about submitting multiple offers on different properties.

If you mean radiant heat, it's better than forced hot air. 

I usually like to do things on my own, but it seems like this is more to stick with the successful "herd" or people who have had repeated successful investments.

I know this is a safety and efficiency issue3) Remove the unit and just rely on the electric radiant headers in the baseboards.   

Single family rental: customarily tenant pays all utilities, owner may pay waterMultifamily 2+ units: customarily owner pays water and trash (included in taxes for 2-4 units in city of Cincy), owner may also pay gas/heat if it's a central system like boiler/radiant.

But most cases are mild, we will have gained herd immunity and we will have developed a vaccine or treatment.