I have a Weil McLain WTGO-4 boiler and a Honeywell aquastat with a low and high setting. Right now it's set at 120 low and 150 high. From what I read it seems that every house is different for where the optimum setting should be between comfort and efficiency. My question is how do I know where the right range should be for my house? I'm concerned that my boiler is cycling too often and for too short a time. Sometimes it only runs for a couple of minutes - not long enough to get the radiators hot enough, but it does eventually get the heat up to the 66-67 degrees I keep my thermostat. Is this short cycling bad for my furnace? Should I bump the high up to 180 and the low up to
140? Will that waste too much energy up the chimney? At $3 a gallon of oil I'd like to save as much money on energy as possible and if that means wearing fleece jackets and pants so be it. If I do change the settings, what are the signs I should look for to make sure that it's working correctly. This system is also a tankless water heater and it seems to provide hot enough water for showers and baths, I just concerned about the constant cycling. A little more info - It's been between 26-35 degrees for the past week.- posted
16 years ago