Sigarms
Super Star Member
I can tell you this on my end, with 3 90%+ gas furnaces in our current home with a direct vent hot water heater (gas), our first year in our home we had our 500 gallon tank filled up 3 times during the winter months here in NC (LP was even a lot cheaper back then).What size tank did you buy just for your cooktop?
I got tired of that fast, so the next year I dual fueled that attic system the next year with a 80% VS furnace, and that following winter I was down to only using 2 tanks during the winter.
Couple of years later, straight heat pump on the main floor with a indirect gas fireplace insert for back up heat, and that got us down to about a tank and half during the winter time.
I just dual fueled the basement couple of weeks ago because the AC wasn't working (don't need it below grade) but put a new system in because the realtor suggested it (made sense) and I'll be using less LP this upcoming winter, letting the heat pump handle most of the heating needs down stairs, but left the existing Trane gas furnace because it runs like a champ so I left it for the blower).
I still need to replace the attic system, not certain what I'm going to go with, but it will be on the cheaper end because the job itself is a royal PITA up there.