I am looking at buying a new house. The one down side oil hot air furnace and oil hot water heater. I'm looking at what my best option would be to change to. I'm looking at the hitzer 710 , but am wondering how the hot water coil is tied in. I feel there would be a lot of over heating. Not sure if I would be better with a boiler and heat exchanger for warm air. I'd like to keep under 4k. Any advice would be appreciated. I currently have a hitzer 50-93, but am looking to move over to the stoker type for ease of operation for my wife. The house is 1600sq ft cape newer construction 2001. Thanks in advance.