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Author Topic: CPVC interaction with hot water from boiler  (Read 1737 times)

Gunpowder

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CPVC interaction with hot water from boiler
« on: October 13, 2017, 07:26:41 AM »

My house is plumbed with CPVC which has a max heat of 200 degrees. Since heat from a plate HX would theoretically be around 180 or less, I assume you can still run the hotter water from a plate HX for domestic hot water?

I would splice in the plate HX in copper or galvanized pipe then convert back to the a short distance down the line. My water heater is a tankless water heater so would bypass it in the winter time.
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coonsrich@yahoo.com

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Re: CPVC interaction with hot water from boiler
« Reply #1 on: October 14, 2017, 07:34:43 PM »

I would not want 180 degree water at the faucet!!!!    DANGEROUS!!!  I would cycle it through the hot water heater using an aquastat to set temperarure at 130 or so.
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Smokeless

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Re: CPVC interaction with hot water from boiler
« Reply #2 on: October 14, 2017, 08:07:34 PM »

Us a tempering valve after the heating device!!! ALWAYS!!!  Especially for DHW.  $70.00.
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