Clayton, just a note to tell you how pleased we are with our GenSpring Kohler whole house generator. The choice of Kohler and GenSpring couldn’t be better. In mid February a long-planned visit by our son and his family from Ohio was expected. The visit did happen BUT that was the day the ice storm hit!! We were without power for more than five days! No power out here means no water, no heat, no lights and no conveniences. The generator came on and we didn’t miss a beat! The grandchildren (and all of us) had a great visit thanks you you! I didn’t know how long our unit would run on a 24/7 basis but the rough figures are this – we started out with 65% full on a 500 gallon propane tank. so full would be 400 gallons. We finished the week with 50% full. So roughly 3% per day. Again, many thanks, keep good.