Under floor electric heating is relatively easy to plan and install, and well within the
scope of an experienced homeowner with a little help from a licensed electrician.
Heat output per square foot is around 10 watts, or 34 Btu, so if the floor of the room
you plan to heat is surfaced with tile, linoleum, or wood you can expect a rise in
room temperature of up to 15 degrees. Surfaces covered with carpeting will reduce
that amount by half.
Underfloor mats are not engineered in the same way as their over the floor
counterparts and should not be installed in mortar or cement.
scope of an experienced homeowner with a little help from a licensed electrician.
Heat output per square foot is around 10 watts, or 34 Btu, so if the floor of the room
you plan to heat is surfaced with tile, linoleum, or wood you can expect a rise in
room temperature of up to 15 degrees. Surfaces covered with carpeting will reduce
that amount by half.
Underfloor mats are not engineered in the same way as their over the floor
counterparts and should not be installed in mortar or cement.
| Alternative-Heating-Info.com |
 |
| |
 |
| |
 |
| |
 |
| |
 |
| |
 |
| |
 |
| |
 |
| |
 |
| |
 |
| |
 |
| |
 |
| |
 |
| |
 |
| |
 |
| |
 |
| |
 |
| |
 |
| |
 |
| |
 |
| |
 |
| |
 |
| |
 |
Retrofit Electric Radiant Floor Heat
Another major difference is that the mesh of an
above the floor mat can be cut cross ways as far
as the turn in the cable and reversed 180
degrees for the return run.
The under floor mat, on the other hand, is rigid
in construction and not designed for cutting and
repositioning.
However, the under floor style mat is available in
a range of lengths from 4' to almost 20' and
more than one mat can be installed in a single
joist bay.
This is often necessary when obstructions such
as cross bracing or blocking are present in the
bay.
above the floor mat can be cut cross ways as far
as the turn in the cable and reversed 180
degrees for the return run.
The under floor mat, on the other hand, is rigid
in construction and not designed for cutting and
repositioning.
However, the under floor style mat is available in
a range of lengths from 4' to almost 20' and
more than one mat can be installed in a single
joist bay.
This is often necessary when obstructions such
as cross bracing or blocking are present in the
bay.
| Above The Floor Mat |
| Between the Joists/Under Floor Mat |
The width of the joist bay determines the width of the mat. Standard mat widths
are 12, 16, and 19.2 inches.
When taking measurements to determine the length of each mat, start 6 inches
from the rim joist (outside wall) to allow room for the power leads and to avoid
unnecessarily heating wall cavities.
Joist bays containing pipes, heating vents, or other obstructions; or joist bays
beneath cabinets and appliances should be excluded from installation.
are 12, 16, and 19.2 inches.
When taking measurements to determine the length of each mat, start 6 inches
from the rim joist (outside wall) to allow room for the power leads and to avoid
unnecessarily heating wall cavities.
Joist bays containing pipes, heating vents, or other obstructions; or joist bays
beneath cabinets and appliances should be excluded from installation.
Retrofit electric radiant floor heat
is a cost effective method for
supplementing or replacing your
current heating system in areas of
300 square feet or less.
For most installations this usually
means the kitchen or bath.
The retrofit installation described
here provides heat to the room
above using electric mats stapled
between the joists beneath the
sub floor.
is a cost effective method for
supplementing or replacing your
current heating system in areas of
300 square feet or less.
For most installations this usually
means the kitchen or bath.
The retrofit installation described
here provides heat to the room
above using electric mats stapled
between the joists beneath the
sub floor.
Make sure to insulate at the end of all heated joist cavities. Install insulation
vertically in these areas to seal the ends of the heated joist areas or 6” after the
mat stops in a joist space. Push the insulation tight up against the subfloor and
staple to the subfloor.
This ensures the heated air cannot escape from the joist space and the floor will
warm as it should.
vertically in these areas to seal the ends of the heated joist areas or 6” after the
mat stops in a joist space. Push the insulation tight up against the subfloor and
staple to the subfloor.
This ensures the heated air cannot escape from the joist space and the floor will
warm as it should.
The mats are hung 2" beneath the sub floor to
create dead space.
The leads at the end up each mat are wired
together in parallel and connected to a junction
box which in turn connects to a heat sensor in
the floor above.
The entire system is controlled by a wall
mounted thermostat.
Install R-13 to R-19 fiberglass insulation below
the mat. Gently press the insulation up to the
mat for best results and secure in place with
rods or staples.
create dead space.
The leads at the end up each mat are wired
together in parallel and connected to a junction
box which in turn connects to a heat sensor in
the floor above.
The entire system is controlled by a wall
mounted thermostat.
Install R-13 to R-19 fiberglass insulation below
the mat. Gently press the insulation up to the
mat for best results and secure in place with
rods or staples.
Site Search