Mindful of the pros and cons expressed on this site, I plan to install a tankless water heater in my home. Like my present water heater, my gas furnace is also on its last legs. I am thinking of installing an air handler instead of a new furnace, and having the air handler warm the air with hot water from my tankless. I am told it is best to install a commercial tankless to do this job (which I am fine with). Apart from that, does anyone have any thoughts/concerns about making this transition? As you can probably tell, I'm an HVAC neophyte.
Thanks kindly for all responses.