Do it Yourself: Re: [DIY] Radiant heating under WOOD floor

14 June 2014

Re: [DIY] Radiant heating under WOOD floor

One of the newer solutions has been to use tankless water heater with external water temperature control and a circulating pump. Far cheaper than a boiler and the recovery rate can be adjusted according to the weather conditions. The house thermostat controls the circulation pump.

Dale in the Flatlands. "Why waste time learning when ignorance is instantaneous."

Mountain Master mountain953346@yahoo.com [DoIt_Yourself] wrote:

I wonder if the ultra-thin radiant mats that are about 1/8" thick

will work..they go on top of the existing floor and are convered

with a new floor-tile, engineered wood, carpet...etc..probably not

carpet for her allergies I suspect.

Depends of course if you want a new floor or not,..but it might be

cheaper than insulating and utilizing a plastic vapor barrier and/or

insulation board in the crawl space..

Would love to hear your final solution,

Ours was to install 4' and 8' x 12" radiant hot water panels on the exterior walls and

a boiler in the crawl space, copper pipe'd it all, expansion tank and

safety relief all in the crawl space accessible with hatch door. (ie, modern

day radiators!!)...

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From: "stratmister@gmail.com [DoIt_Yourself]" <DoIt_Yourself@yahoogroups.com>
To: DoIt_Yourself@yahoogroups.com
Sent: Friday, June 13, 2014 1:16 PM
Subject: [DIY] Radiant heating under WOOD floor

We can't live with forced air, wife has terrible allergies and I have asthma.

So I've finally decided to look into it seriously.

Since we walk on sub-floor built on 2x6 joists atop a crawl space, only option is to run the loops under the floors, and it is essential to cap the cavity with reflective foam sheets.

Now, here's my concern.

Crawl space is always cold in the winter and I'm worried that any leak of warm air from the floor joists will condensate and wondering if anyone has looked into this problem.

Would hate to spend tons of money and end up ripping things down 2yrs down stream to clean out MOLD!