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Author Topic: heating a hot tub?  (Read 2294 times)

Scratch

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heating a hot tub?
« on: November 19, 2011, 04:47:27 PM »
Anybody heating their hot tub with their OWB?  Wondering what type of heat exchagers are out there.
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Hudson, WI

RSI

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Re: heating a hot tub?
« Reply #1 on: November 19, 2011, 08:43:01 PM »
You need to use a stainless steel shell in tube heat exchanger. (about $250)
The chemicals in the water will eat copper. I have heard of some people using flat plate heat exchangers but I would not because they will clog much easier and they are brazed together. (chemicals will not get along with the brazing)
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dirtryder

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Re: heating a hot tub?
« Reply #2 on: November 21, 2011, 07:14:29 AM »
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muffin

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Re: heating a hot tub?
« Reply #3 on: November 22, 2011, 06:47:19 AM »
I use one of these to heat my pool.  Works great.  You will need a 3-way valve too.  I assume you can tap into its thermostat to control the valve.
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koutsman

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Re: heating a hot tub?
« Reply #4 on: November 22, 2011, 07:40:19 AM »
Scratch,     You have P.M.
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Kouts, Indiana
Legend 6180 - Installed 11/09
STIHL Farm Boss 20"