Under floor heat / Discussions

...heating and cooling. But specifically about your question of how to heat and cool a slab on grade floor, would be a heated floor. here is out page all about different under floor radiant heating systems. Cooling is a different matter, some people put in air-to-air heat pumps cooling, and radiant cooling is something of...

...heat, whereas electric wire heating systems shut off instantly. Also air heated radiant floors don’t overheat as much as liquid hydronic under floor heating due to the fact that air cools down much faster than water, so they tend not to overshoot the mark. Here you can compare various in floor heating - Which under flo...

...heat pump with under floor radiant heating. Most radiant heated floors in new constructio are done with hydronic heating (liquid), so you can have an air to water heat pump feed water into a boiler to bring it up to temperature. Here are a few relevant pages : All about radiant under floor heating Ground source heat pu...

...floor system? Thank you. If you install only 2 inches of insulation under a slab with radiant heat in a cold climate, you will be dumping tons of heat into the ground for no reason. You would be far better off financially to add a few inches. We have built several demonstration homes in different regions of Quebec, and...

...under the exterior of the slab, Tpye III EPS foam under footings  and a skirt of R8 insulation extending out 4 feet.  ARe these suitable for such conditions.  Have these materials been tested to see if they retain their insulating properties over time??   If not, the concrete slab will heave, crack, etc.  Also, do you ...

...heated radiant floors and have a few questions: What is the cfm on such a system  (per loop or run)? What temp is run through the system? Are there any other providers of such systems than Legallett in the USA? Thank you for your help,  Marty Legalett supplies air heated radiant floors with electric or water coils. The...

...heating the floors. How did you execute in floor heat on the Kenogami house and keep it from overheating?    PS- I don't expect toasty warm floors, just not chilly floors. Thank you for your time! I would personally not consider building a house on a polished slab on grade in a cold climate without heated floors. Heat ...

...heat to the floor - hydronic under floor tubing as well as engineered air heated radiant floors are pumping or blowing super-heated air or liquid through floors, whereas the air at your ceiling is only slightly higher in temperature than the air at the floor. so by the time you divert it down through ducts to the floor...

...heating a wire, or a wire heats air or water and then forces it through tubing in a floor. So hydronic, air heated floors or electric mats heating systems are effectively the same in efficiency.  The differences are subtle, but in the case of the air heated floors, the heater is in the floor itself so all the heat is c...

...under floor electric heating wires, and using electricity to heat and blow air through tubes, or heat and pump liquid through tubes. Electric resistance heat consumes the same amount of power whether that's for Legalett air heated floors, an electric furnace, an electric boiler, electric radiators, or even heating your...

...heater. What is the best choice? Or are there better options that I didn't think about? Thank you for your help and keep up the good work! David To choose between various under floor radiant heating systems I would first point you to this page here – Choosing under floor heating hydronic / liquid, electric wires or air...

...floor heating?  We will just be putting a Woodstove in and don't want in floor heating but I'm concerned with moisture from the slab and having flooring over the concrete causing mould issues.    A polished concrete slab on grade, or any basement concrete floor, will feel cooler to the touch than wood or other flooring...

...floor radiant heat. We received a quote from Legalett for their geo slab it seemed more than we were hoping, is hydronic in floor more cost effective? Also, if we heated the space with a mini split heat pump and insulated beneath the slab would the floor be warm?   Installing radiant heat in a concrete slab on grade fl...