Infloor heat / Discussions

What is the best method of building a slab on grade?

...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...

Posted by Jay Law April 19, 2021 Slab on Grade 1 response

What is the CFM and operating temperature on air heated radiant floors?

...heated radiant floors with electric or water coils. The air flow would be between 450-650CFM for each heater (750-1100m3/hr), the large heater is 8 loops by standard, so divide the CFM by 8 to get the per loop CFM And the temperature would be between 45C and 65C out of the coil for both electric and water. There are no...

Posted by martin skibba Feb. 28, 2021 Delivery: radiant, forced-air and decentralized 5 responses

What Should You Look For When Buying a Slab on Grade Home?

...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...

Posted by Mike Molloy Nov. 6, 2019 Slab on Grade 1 response

What is the best way to build a slab on grade on bedrock?

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 ...

Posted by peter owen Oct. 31, 2019 Slab on Grade 1 response

How much insulation should I install underneath my concrete slab in my basement?

...heating bills. Here is a page that details it even more- How much insulation a basement needs Being below the frost line doesn’t make much of a difference, the ground temperature would be at best 5 or 6 Celsius ( 41-42F) since Winnipeg isn’t known for having ‘balmy’ winters.  Heat always moves from warm to cold, so as...

Posted by Scott Antonation Sept. 27, 2019 Slab on Grade 5 responses

Can you install tubing under a slab on grade foundation to extract heat in winter?

...heat pump be put under a slab on grade prefab form foundation kit to extract winter heat? We generally recommend people check with an engineer for any such matters, but that shouldn't be a problem at all. Installing tubing for a ground source heat pump (GSHP) under slab on grade foundations as well as ground loops for ...

Posted by Jennifer Cole Aug. 28, 2019 Slab on Grade 1 response

Does hydronic radiant cooling work?

...heat - Air heated, electric of hydronic, which is best?  Even in the appropriate climate it is a fairly complicated system and needs to be carefully designed, and it would need to be coupled with a very good ERV to keep the Relative Humidity low. Alternatively, we would propose you simply use the floor for radiant heat...

Posted by dean c April 30, 2019 Delivery: radiant, forced-air and decentralized 1 response

Is hydronic slab heat appropriate in a super insulated home?

...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...

Posted by Andrew Wright Feb. 3, 2021 Delivery: radiant, forced-air and decentralized 1 response

Is solar air heating for a floor as efficient as solar hydronic?

...heat isn’t as big a factor in determining efficiency. This page discusses the differences and pros and cons of each system –  Under floor heating systems - which is best, hydronic, electric wire or air heating tubes? Moving into a solar solution though and choosing between a solar water heater and a solar air heater, t...

Posted by Ryan Johnson Dec. 7, 2020 Delivery: radiant, forced-air and decentralized 2 responses

Does a slab on grade need to have under floor heating?

...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 mater...

Posted by Lauren Panzani Nov. 13, 2020 New foundations and slab-on-grade 1 response

What is the best heating and cooling system for a slab on grade home?

...heat, and the cooling is all provided by a combination of air source heat pump and a heat pump water heater working in tandem.  Our latest demo house we used a solar air heated floor from Legalett, they provide engineered slab on grade prefab kits with air heated radiant floors. We were really happy with it, and they a...

Posted by Matthew Gioia July 7, 2020 Heating and cooling 4 responses

How do you add an Air Exchanger to a house with Hot Water Heat?

...heater core that absorbs and releases heat. You can see more here- Lunos Ductless ERV heat recovery ventilation systems   

Posted by Bob Engelhart June 17, 2020 Ventilation 4 responses