wjamesm wrote:The propane heaters are free standing units that were used as a supplemental heat source . the house has electric baseboard and a heat pump hot air system in the basement . one of the propane heaters is located in the living room/kitchen approx. 500 sq.' and the other is downstairs in the basement that is 2/3 finished .
If you replace that living room/kitchen propane heater with a DVC-500, it will put out enough heat so you can bake cakes on the kitchen table, and your dog will die of heat stroke.
Seriously, with a big stove one of the problems is moving the heat beyond the area where the stove is located. There are lots of threads here discussing ways of doing that. Since you haven't moved into the house yet, you might be wise to postpone your decision until you have spent a winter there, and know just how much heat you need and where. The heat-pump hot-air system sounds interesting, since presumably it already has blowers and duct-work to distribute the heat. Some people install a coal boiler, with a heat exchanger in the plenum or duct-work, to take advantage of that already-existing distribution system. Some tie in a coal furnace in series with the existing hot-air system.
Spend lots of time reading old forum threads and you will know better what to do.