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Old 03-06-2012, 10:53 PM   #1
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Replace baseboard radiator with in floor heat

We have a 50yo ranch that has a newer natural gas boiler with baseboard heaters throughout the house. I attached a simplified diagram for how our system is plumbed.

I are redoing our bathroom down to the studs and I would like to put some type of in/underfloor heating in rather than the baseboard radiator.

I would likely use warmboard or a similar product, or staple up plates below the sub floor for the actualy heat transfer.

What I am more concerned about is the actual water flow, and if there are potential issues with just replacing this unit. For instance, I think I would have to install a bleed valve above the floor level to purge the air from the loop... I'm sure there are other concerns.

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Old 03-07-2012, 04:39 AM   #2
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The radiant would have to be its own loop to work right.


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Old 03-07-2012, 05:44 AM   #3
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Originally Posted by beenthere View Post
The radiant would have to be its own loop to work right.
Ayuh,... It'll wanta be on it's own loop, probably with a mixer valve....

Seems I remember that baseboards want 180, 'n in-floor wants something cooler, like 160 or so...
The bleeder can be put 'bout anywhere, downstream of the radiation...

Still Very doable, just not as easy as plug, & play...
You'll Love it when ya get it done...
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