Under-floor radiant heat is ideal for homeowners that want to take advantage of the clean, even heat of a radiant heat system, but without the additional cost and labor of replacing your entire floors.
Under-floor radiant heat systems are installed underneath the current sub floor between the floor joists. This kind of installation is not as responsive as the aluminum base method but is more responsive than the thermal mass method.
Under-floor radiant heat needs to heat the wood sub-floor and floor covering above so it can radiate heat into your home. This makes it the most unobtrusive radiant heat to install in an existing home. It will not add any additional floor height or disrupt your existing floor coverings.
There are a few common under-floor installation methods: staple-up with heat transfer plates, staple-up without heat transfer plates, and hanging tubing in the joist space. This is how they differ.
Staple-Up With Heat Transfer Plates
These systems use thin aluminum heat transfer plates that are stapled up with radiant heat tubing under your subfloor. The plates are highly conductive and provide a large surface area that will absorb...