My basement is aprox. 1000sqft and has pex tubing in the floors and I want to hook up heat to it. I also have a 12 year old water heater that I would like to get rid of, and replace it with a Wall-Hung Condensing Combination Boiler. I also need to know how to properly size the unit. It is only my wife, son and myself in the house but I want to do it right. I can't seem to find a brand that is that I can get parts for locally any suggestions?? The ones that I have found range in price from $2700 to $4000
