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Author Topic: Glycol or Antifreeze  (Read 21782 times)

userdk

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Re: Glycol or Antifreeze
« Reply #15 on: August 07, 2014, 03:19:59 PM »

Glycol can become corrosive after a few years. Is there any treatment to run with it?
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slimjim

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Re: Glycol or Antifreeze
« Reply #16 on: August 07, 2014, 04:01:52 PM »

Check it regularly, 2-3 years and add when neccesary!
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LittleJohn

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Re: Glycol or Antifreeze
« Reply #17 on: August 08, 2014, 06:27:35 AM »

Yes water does transfer heat better and is easier to pumps; but it also tends to start freezing about 32f  ::)

Where as your "typical" 50:50 mix of Propylene glycol you can still pump the fluid down to about 5f, and burst protection to about -20f THESE ARE ESTIMATED FLUID TEMPERATURE, NOT OUTDOOR TEMPS
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userdk

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Re: Glycol or Antifreeze
« Reply #18 on: August 08, 2014, 04:38:49 PM »

Keep your pump going and don't worry about glycol.
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mlappin

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Re: Glycol or Antifreeze
« Reply #19 on: August 08, 2014, 05:25:32 PM »

Yes water does transfer heat better and is easier to pumps; but it also tends to start freezing about 32f  ::)

Where as your "typical" 50:50 mix of Propylene glycol you can still pump the fluid down to about 5f, and burst protection to about -20f THESE ARE ESTIMATED FLUID TEMPERATURE, NOT OUTDOOR TEMPS

Standing or still water freezes at 32, the water temp has to  be a lot lower than 32 before lets say a drainage ditch or creek freezes.
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slimjim

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Re: Glycol or Antifreeze
« Reply #20 on: August 08, 2014, 05:27:39 PM »

I agree, out of all the units I have put in I don't think there are more than 6-8 that run any anti freeze, set it up to drain the boiler and blow out the lines right from the start and you will be fine.
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Wood boiler sales, service and installation for the Northeastern USA.

aarmga

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Re: Glycol or Antifreeze
« Reply #21 on: February 03, 2017, 11:47:12 PM »

I know this post is old but incase anyone reads this wondering about what they do if they leave town.  I run my furnace in the house as I would if I didn't have a wood stove. Set my thermostat to 60 degrees and run my pump on low speed. My water temp in my wood stove stays 90-100 degrees even when it is 0 degrees Fahrenheit outside.  Keep the pump running and enjoy your time away.
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Goat Herder

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Re: Glycol or Antifreeze
« Reply #22 on: February 14, 2017, 05:50:33 AM »

I think my temp drops more, a good safety check might be to turn the boiler fan off on a day that we are home and temps are at a level of concern and monitor water temps.  This would tell us how the boiler and other heat systems interact. 

We are having the warmest February that I can remember.

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aarmga

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Re: Glycol or Antifreeze
« Reply #23 on: February 14, 2017, 11:00:39 AM »

Same here! Going to be in the 50s this weekend and 60s Monday! Going to get some wood cut.
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