Found problem with hard starting furnace, yesterday afternoon I tried to light stove, it would come on normal and then diminish to barely on in about 3 seconds, I figured the Dealer did not fill tank. Took the tank to get it filled and the guy weighted it and said, its almost full of gas but the tank needs to be purged of air. Apparently LP is in a liquid form and lays on the bottom and the air rises to the top, appliances will not run on air, after he purged the tank for about 5 minutes and reweighted it I reinstalled it, the stove works great and the furnace lights first time. BAD OLD AIR, the dealer should have caught this during pre delivery