Does anyone have experience with hydronic heating under subfloor and carpet? I am building an addition and plan to heat with hydronic tubing under 3/4 OSB subfloor with carpet over that. I know that doesn’t give me the benefit of mass like concrete but it seems like a better option than hot water baseboards. My heating contractor suggests creating an airspace around the tubing by spacing the insulation down from the floor 1-1/2″ thereby allowing the heat to move up through the floor. The exsisting house is in-slab radiant heat. Any thoughts or recommendations would be helpful.
Discussion Forum
Discussion Forum
Up Next
Video Shorts
Featured Story
Practical steps you can take to hire and develop entry-level workers and ensure long-term growth for your business, from fostering a supportive learning environment to creating clear career pathways.
Featured Video
Highlights
Fine Homebuilding Magazine
Fine Home Building
Follow
-
Fine Homebuilding
Dig into cutting-edge approaches and decades of proven solutions with total access to our experts and tradespeople.
Start Free Trial Now -
GBA Prime
Get instant access to the latest developments in green building, research, and reports from the field.
Start Free Trial Now
- Home Group
- Antique Trader
- Arts & Crafts Homes
- Bank Note Reporter
- Cabin Life
- Cuisine at Home
- Fine Gardening
- Fine Woodworking
- Green Building Advisor
- Garden Gate
- Horticulture
- Keep Craft Alive
- Log Home Living
- Military Trader/Vehicles
- Numismatic News
- Numismaster
- Old Cars Weekly
- Old House Journal
- Period Homes
- Popular Woodworking
- Script
- ShopNotes
- Sports Collectors Digest
- Threads
- Timber Home Living
- Traditional Building
- Woodsmith
- World Coin News
- Writer's Digest
Replies
Haven't tried this yet but a HVAC contractor on my job says to use the subfloor that has the grooves cut for the PEX tubing with the aluminum baffles already installed, followed by a layer of Wonderboard (cement backer board) over it, then whatever flooring material you want...
Sounds like a good solution but I have yet to try it.
Re: in slab radiant heat. Is it bare copper tubing? If so, get the jack-hammer out.
Another co-worker just purchased a house with in slab bare copper tubing and surprise, surprise, it's leaking like a sieve....He's spending the next few weekends re-piping his house.