Radiant 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 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...

...heat pump for domestic hot water and hydronic heat. I'm inclined to have the hydronic heat installed in the floor but I've heard that it's not necessary and will "overheat the house". One local supplier recommends the Minotair HRV with integrated hydronic heat loop, essentially an improved forced air heating system. My...

...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...

...radiant ready’ at least in case you found it to be too cold.  As for putting wood or other materials on top, that isn’t a problem, as long as you have vapour protection underneath, and let it dry before you do that. So in the case of radiant heat,  you can speed cure it by running the heater and then doing a moisture t...

...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 floor wi...

...heats up at night. I have R35 in walls and R60 in ceiling I am looking at using the 4mm cork tiles glued down with the bostik and finitec products you used on the Edelweiss house. Do you see any issues with using it with the electrical heating cables as compared to the method of in floor heat that you used especially a...

...heated floor, it's new constrution. A heated floor can have a detrimental effect on some types of flooring, but there are many options. Is this a concrete floor? The easiest way is to just to polish it, a polished concrete floor is durable and affordable, and there is no problem if its heated. It’s more a problem with ...

...radiant 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 Que...

...heated slab. The videos on those pages will give you a good idea of the difference in the systems. The major advantage we found with having a slab provided by a specialized design firm is the attention to detail, the tech support, and the innovative solutions to common problems such as the insulated door sills for slab...

...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...

How would you determine the thickness for a new construction of a slab on grade that will have only liquid forces acting down on it? Not sure what you mean by liquid forces, but a slab will perform differently depending many issues such as soil quality and bearing capacity. Slabs are most often edge loaded (where the l...

...heated floors are just as effective and reliable as hydronic radiant floors for heating your house. This page explains the differences well – Air heated radiant floors vs hydronic, which is best?  We’re happy to help with all your questions, best to put them on individual threads to keep topics straight, so we will sta...

...heat pump that would do most of the air heating in the home. Heat pumps are the most efficient heating system, so with that combination you would have an efficient source of air heating, your feet would not be too hot or too cold, and for the spring and fall when you may want a bit of heat in the house and not heat the...

...heated radiant floors is intended for new home construction, though you could raise a house and build a basement with one.  So – on the off chance you have a crawlspace and called it a slabby accident then yes, you could.  It’s one thing to raise an existing house that has floor joists and build a new foundation, but ...

...heated. If it isn't then I personally wouldn’t even consider it because it will be very uncomfortable, and if it is heated but the bills are sky high then  I wouldn’t either because that means it has very little or maybe even none.  On structural integrity - a house that old would probably have heaved and cracked if it...

I watched your videos with much interest but wasn't sure about the "trench" type perimeter "grade beam" in terms of supporting the house structure, and the fact that I have bedrock (Lake Huron / limestone) 18" below the surface. Wouldn't a poured perimeter wall down to bedrock be a better approach - before pouring the ...

...heated air generated from the Solar Air Panels is not needed during the summer months to warm the cement floor slab, the heated air is diverted to an air/water heat exchanger for heating the hot water tank instead. Is the closed loop system maintained when diverting heat to the air/water heat exchanger for the water ta...