Just had a new boiler furnace ( baseboard heat ) installed. Also got rid of
my very old thermostat & installed a new digital setback type. My question
is, what's the deal on setting back a boiler a few degrees at night.
Considering the time it runs in the morning to get the temp. back to normal,
am I really saving anything or not ?? Any ideas, thanks Gimpy
Yes. Heat loss is proportional to the difference in temperature
between the inside and outside. While your thermostat is set back
the temperature difference is less than it otherwise would have
been, thus less heat needed.
Okay, you have a boiler, not a furnace (which heats air.) The boiler
thermostat (separate from the one for the house), that controls the
of the water-jacket; good idea to turn that down, within reason, for
so long as you have adequate recovery rate in the house.
IOW, you might want the "aquastat" to be set to 180 deg F in Feb., but
fine for March, and 140 okay through summer. Unless you have
water-heater, and turn boiler off for summer.
Yes, you will save, proportional to night setback, and reduction of
within restriction of what it takes to bring temps back up on frosty
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