Question about Heating & Cooling
Since you didn't provide the brand & model of the thermostat, only generic help can be provided.
Most furnaces that run on oil or gas, make hot water all the time, 24 / 7 - winter, summer and everything between so to speak. They are controlled by an aquastat that may be set for any value between 140 - 180 degrees F. This is called "hot start" - simply because when the thermostat is set to a temperature higher than the room (turning heat ON), the water is already hot in the furnace, and is circulated immediately. If it was a "cold start", you'd have to wait for the water in the furnace to heat up from room temperature. This would substantially increase the amount of time it would take to heat the room.
Generally, the "vacation mode" simply halts the program from running. If your thermostat changes temperatures several times during the day / night, it will simply hold the lowest temperature - or a predetermined temperature built in - or chosen by you. You'll need to consult your manual to determine just how your thermostat handles the vacation mode setting. Post again if you can't find the manual - but tell us what brand and model it is.
I hop ethis helps - good luck!
Many heating thermostats don't allow for setting a temperature below 45 degrees F so freeze ups shouldn't be a problem.
Posted on Oct 01, 2010
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Posted on Jan 02, 2017
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