Yes Sir, we did just about the same system as you and with the 500gal propane tank. House is all electric with heat pump. Heater guy put a couple of switches on heating unit so it just runs off of heat pump and not all of the electric heat units when the generator is on. We wish we would have done it 25 years ago.Yep we had an ice storm couple years ago.... no power for 17 days. Some were out for 25 days. Luckily I had a buddy that ran the hardware store in town and he told me about a close out sale on his Generac generators. Got a 23kw installed, runs on propane and that one ice event made it worth every penny. Think it was $4200 installed plus 500 gal propane tank. Money well spent as it will run the whole house