Hi everyone...new to the forum..just signed up after lots of reading. So I'm looking after my dad's house now, and it's time to upgrade the furnace. As of right now we are running the same oil burner that was in the house since 74. In thev80s my dad put in a wood furnace beside the oil burner and combined the 2. The oil furnace fan ran both furnaces. Since then the wood furnace has burnt out and oil is getting really expensive alone. I originally had been looking at Napoleans hybrid furnaces but it appears they are out of the game now. Seems like the caddy is a pretty good furnace. The house is 1200 sqft...could stand to be better insulated..only 2x4 walls...plain windows. My question is would this be a good way to go...or is it better to have to separate furnaces?