Outdoor Wood Furnace Info

All-Purpose OWF Discussions => Plumbing => Topic started by: Gunpowder on October 13, 2017, 07:26:41 AM

Title: CPVC interaction with hot water from boiler
Post by: Gunpowder 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.

Title: Re: CPVC interaction with hot water from boiler
Post by: coonsrich@yahoo.com 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.

Title: Re: CPVC interaction with hot water from boiler
Post by: Smokeless on October 14, 2017, 08:07:34 PM

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