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Source
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One of the most common and efficient way to supply heat to a room is with a hydronic radiant heat floor panel
Concrete Slab / Thin Slab
/ Subfloor Plates / Subfloor Board
/ Engineered Subfloor / Staple-up
/ Hanging
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Concrete
Slab
Tubing or electric heating elements are attached to wire
mesh or fixtures to hold them in place until the concrete
floor is poured. The tubing or elements are embedded in
the concrete anywhere from the bottom of the slab to within
2 inches of the surface, depending on the design and installation
technique.
Source temperature required:
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Thin
Slab
Tubing or electric heating elements are attached to the
wood subfloor with fasteners to hold them in place until
a concrete, lightweight concrete, dry pack or gypsum underlayment
is installed as the final subfloor. Gypsum products bond
to the subfloor and are generally thinner and lighter
than concrete products. Concrete must be separated from
the subfloor with a slip sheet to prevent bonding. The
subfloor structure be built to minimize flexing to avoid
cracking the slab.
Source temperature required:
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Subfloor
Plates
Aluminum plates supported by wood or plastic spacers contain
channels which accept tubing. These plates spread the
heat uniformly beneath the finished floor. Hardwood floors
can be nailed directly to the subfloor plates or carpet
and pad placed over the plates. It is also possible to
nail a second subfloor over the plates for a smoother
finish for vinyl areas. A cement board is used when tile
or stone is to be installed. Particle board is not recommended
as a subfloor.
Source temperature required:
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Subfloor
Board
Premanufacture boards with a laminated layer of aluminum
and a channel to accept tubing are screwed or nailed to
the subflooring. Hardwood floors can be nailed directly
to the subfloor plates or carpet and pad placed over the
plates. It is also possible to nail a second subfloor
over the plates for a smoother finish for vinyl areas.
A cement board is used when tile or stone is to be installed.
Particle board is not recommended as a subfloor.
Source temperature required:
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Engineered
Subfloor
An engineered, load bearing board takes the place of the
structural subfloor. It has a laminated layer of aluminum
and a channel to accept tubing. Hardwood floors can be
nailed directly to the subfloor plates or carpet and pad
placed over the plates. It is also possible to nail a
second subfloor over the plates for a smoother finish
for vinyl areas. A cement board is used when tile or stone
is to be installed. Particle board is not recommended
as a subfloor.
Source temperature required:
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Staple-up
Tubing is attached to the underside of the existing subfloor.
Aluminum plates can be used to spread the heat evenly
under the subfloor. Insulation is placed in the joist
space beneath the tubing. A 2 inch air space is usually
left between the insulation and the bottom of the subfloor.
If aluminum plates are used which significantly cover
the underside of the subfloor, the insulation may be pushed
up tight against the plates. Obviously, care must be taken
when nailing any floor covering from above.
Source temperature required:
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Hanging
in Joist Space
Tubing is suspended several inches beneath the subfloor
in the joist space. Insulation is installed in the joist
space beneath the tube with a 2 to 4 inch air space between
the top of the insulation and the bottom of the subfloor.
The air within this space is heated by the tube which,
in turn, heats the underside of the subfloor.
Source temperature required:
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