Radiant heat can be added under your existing floor.
How to install radiant floor heating in existing house.
The retroheat floor heating system was designed specifically for providing electric radiant heat to existing floors by accessing the floor joists below.
The retroheat system can be installed to heat tile hardwood laminates.
If you re remodeling it s a good time to satisfy both requirements.
A pex radiant floor heating system can be the most comfortable efficient and often may be installed for less than other heat delivery hydronic systems.
There are two basic types.
It can go under most existing flooring including wood tile vinyl and even carpet.
Its success with carpeted floors depends on the length of the weave thick carpets or those with thick pads won t work well as heat generated by the system will stay trapped in the floor.
Electric mat radiant heat is best when sandwiched between the subfloor and the finish material be it wood tile or carpet.
Radiant heating works well with ceramic tile and vinyl but not with wood floors.
Radiant floor heat stratifies the heat from the feet to the head.
This is what feels naturally comfortable to our bodies.
Retroheat radiant floor heating system.
The best way to retrofit radiant floor heating without disturbing an existing floor is to do it from below against the underside of the subfloor.
Installing underfloor electric radiant heat.
A bathroom size warm floor retrofit will cost 400 to 700 including the cost of the new tile.
This in floor heating system consists of one thin continuous cable heating element woven into a mat that you install under the tile.
If you re installing radiant floor heat in an existing room you ll need a dedicated 15 to 20 amp gfci protected circuit to power the system and an excuse to lay a new tile floor.
In this situation hydronic radiant heat water circulating through pipes would be easier to install than electric mat radiant heat.
In most houses the only place to do this is on a first floor where joist bays are open to the space below.
These heated floors are a project best done when overhauling or changing the floor covering of an existing room or when adding a new room.
According to the this old house website the retrofit costs about 700 for a bathroom including the tile.