Dual Propane Boiler/Kuma Wood Stove - aquastat and thermostat

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Old 03-10-11, 11:27 AM
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Dual Propane Boiler/Kuma Wood Stove - aquastat and thermostat

We recently purchased a 1985 home in NE Minnnesota that is hot water heated (3-zone finned registers). The home has both a propane boiler and Kuma Wood stove; the water pipes though both so that either one (propane or wood) can be used.

We only use the home a few weekends during the winter, but heat it with the propane keeping the thermostat at 53 degrees.

My question, for this lower heat setting for all winter, what aquastat setting would be more efficient, 160 degress or 185 degrees?

Thanks in advance, Keith
 

Last edited by KNyst9084; 03-10-11 at 12:31 PM.
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Old 03-10-11, 02:01 PM
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The lower the water temp the cheaper it is to heat, the boiler will satisfy sooner. Assuming 160 will heat the space.
 
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Old 03-10-11, 02:38 PM
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I wouldn't go lower than 160 on a gas fired appliance because you run the risk of what is called 'flue gas condensation' which is destructive to boiler and chimney.

Repeating TO's advice: IF the 160 water will in fact heat the space.
 
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Old 03-10-11, 03:22 PM
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Thanks for the replies. The 160 does the job ... held the 53 degrees ok, even at -25 in late January (I can call in to check the temp). It does take a long time to bring up the temp to liveable when we go up for a long-weekend.

I think I'll bump it up to 180 when we arrive this weekend for a quicker warmup from 53degrees and then set it back down to 160 when we leave.

Thank you.
 
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Old 03-10-11, 03:54 PM
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You can call in to find out the temp but can't set it ahead of time? Mayeb you can get something that allows you to do that so it's nice and toasty when you arrive.
 
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