Tankless recirc loops as radiant heat ?

drtechnoJuly 21, 2010


Can a recirculation loop off a tankless water heater (which decreases how long you have to wait for hot water) be used to heat a basement ??

Thank you for reporting this comment. Undo

What is the heat loss of your basement? That will answer your question in a hurry.

    Bookmark   July 21, 2010 at 5:24PM
Thank you for reporting this comment. Undo

Just a follow-up on tankless thread. I have an radiant heat set-up with staple up between joists and in slab for garage. Overall there is about 1000 feet of 1/2 inch tubing throughout including garage. Using recirc with tankless. Option on tankless is set-up for monitoring of temp every 1/2 hour by tankless unit and automatic firing of boiler if temp is greater than 9 degrees below set temp. I have set temp at 135, but temp only gets up to 111 degrees after running about 12 hours plus. I have two 1/25 hp pumps on system, one pushing water on suply side and other pulling on return. Both pumps are hot at 12 hrs+. Do I need bigger pumps? Do I need to up the set temp? Any input would be appreciated

    Bookmark   March 10, 2013 at 6:29PM
Sign Up to comment
More Discussions
Toilet swirls, but won't flush!!
Very frustrated. The toilet seems to be ok, it gets...
Sewer line disaster
originally posted on another website, but in the spirit...
New under mount sink - drain off-center?
I had a new granite countertop installed with an under...
Water Softener - calling justalurker
Hopefully you are still around. I had reached out a...
corrosion seen on hot water shutoff valves
I was repairing a minor leak in the kitchen faucet...
© 2015 Houzz Inc. Houzz® The new way to design your home™