Bill....bit the bullet and get the darned Espar.....I've told ya electric 1500 watts just won't do the job....without a big bulky sleeping bag and or blanket and breathing in cold air.....give yourself a break....a flip of the switch, no muss, no fuss and you'll be sleeping naked if you want , the Espar will toast you out.....clean and efficient....I've done the electric thing , I've done the propane thing....I was stupid not to have gotten the Espar sooner....