Inherited Axeman 130 wrote:I don't have much experience with oil furnaces [only coal] and have a vacant house that I am selling with one in it. I am trying to maintain just enough heat in the house to avoid frozen pipes. I am assuming? the furnace will continue to run to keep the boiler temperature up for domestic water, regardless of the thermostat setting.
Is there a way to adjust the furnace, aquistat, etc, so that the furnace will only run if the thermostat calls for heat?
Thanks for your help.
No, it needs to maintain the water temp. You can turn the settings on the aquastat down to 130*-150* for the low and high setpoints, I would go no lower because when it gets real cold it may not be able to keep up. What you really want, and will probably be a cheap and easy fix, is a thermostat that can go down to about 35* or 40*. That way it will run the minimum amount to keep everything in the home from freezing. I would set it at about 40* for starters and check the house out on a very cold day. A 25-30* drop in the homes temperature setpoint will be a HUGE savings.