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Old 01-14-18, 11:44 PM   #1
Mukiwa
Lurking Renovator
 
Join Date: Sep 2015
Location: BC
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Default Help me plan my DIY wood stove water heater

We are building a house with an insulated and hydronicly heated concrete slab as our floor and heat source. It will be heated with a propane boiler but I want to be able to hook it up to my woodstove in the future. Unfortunately the woodstove is not located beside the mechanical room so I have to run water line through the slab from the woodstove to the mechanical room. I will not be hooking up right away but I have to have the pipe in the slab before because once we pour the concrete I wonít have access to install a pipe later (obviously). What type of pipe should be used in the slab?

A few options:

Pex - Iím worried pex will melt with the heat of the woodstove,
Steel - I donít really want to have threaded fittings where I canít access them if they start leaking or something
Copper - $$$$$$

What would you use? And what size should the pipe be?

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