<strong>Yahoo Message Number: 1274</strong>I also have problems with flame out when we do not use the hydronics heater for a few days and then we turn it on when the tempoerature drops. I blame this on the fuel. Diesel does not do well in cold weather especially if we just purchased unwinterized fuel in a warm area. I restart mine at least 4 times before it stays on and runs, once it's...