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Jan 10, 2014 at 14:50 comment added Jon Fournier I think the idea behind #2 is good, personally. Basically just wire a second thermostat in parallel for the same zone, so that if the mudroom gets too cold it trips the same zone. Is that stupid/dangerous? I've actually thought about doing this, myself, using a RaspberryPi computer to trip a relay for the parallel connection. I would want to program it so that if the weather is below 10F outside then the circulator runs every other hour for 5 minutes, enough to get the water moving, even if it trips the furnace to run...
Jan 7, 2014 at 2:33 comment added TomG Boilers that I've seen trigger the heat when the water in the boiler cools down, which would happen whenever you run a circulator. I think this would eliminate #2 as an option for most systems.
Jan 6, 2014 at 15:44 comment added Tester101 Tempted to down vote just based on the link to ehow.com
Jan 6, 2014 at 15:09 history answered Justin K CC BY-SA 3.0