Newbie poster here....
I live in N. Virginia (mild-ish winters, daytime highs typically in the 40s, 3-sigma is probably 25 to 55 degrees) and have a forced-air oil furnace that came with the house. The furnace was replaced by the former homeowner in 2003; she put in a mid-range system in preparation for selling the place. I'd like to convert the furnace to a hybrid system -- i.e., oil furnace with heat pump -- on the premise that our mild winters are better suited to heat pumps than furnaces, but the furnace is worth "hanging on to" for the occasional cold spell. Note: I'm a homeowner, not an HVAC expert, so please correct me where I go astray. I'd rather be told I'm wrong than find out after the system goes in.
So I've started looking around for a hybrid-oil system. I've found lots of references to/comments about hybrid-oil systems, some of which are on manufacturers' web sites, but haven't found a single system. Plenty of hybrid-NG and hybrid-LP systems, but none with oil. Unfortunately, NG isn't an option in my area. And AFAICT, conversion to LP isn't cost effective, even at the current home heating-oil prices (currently $4.51/gal, although prices for next season have yet to be set).
So, the actual question: Are there any hybrid-oil systems out there? Can anyone point me to any information/systems/solutions on any of these systems? I have a billion questions on this stuff, but want to do some homework rather than ask a bunch of questions that you folks have been through numerous times already.
All info (and clue adjustments) appreciated.