What is the best way to do a radiant floor in an off grid house?

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What is the best way to do a radiant floor in an off grid house?

Julien Comtois Oct. 2, 2021Last updated: Oct. 5, 2021

I am in the design process of what will be a retirement home. The property is 43 acres near Perth, Ontario. The home will tentatively be off grid. I'm thinking a solar/ wind hybrid system. I was leaning towards an air to water heat pump as the heating system, but a masonry heater as a primary when we are home. I am considering the Legalett system that you discuss in many of your articles. They have a heat exchanger that goes from liquid to their air distribution system. Would this be compatible? Are there unnecessary inefficiencies in going from air to liquid and back to air, and if so, how to remove them? Should I just go straight to hydronic with glycol and forget the Legalett air distribution part but keep the forming? I'm trying to achieve the least amount of electrical use required to make the in floor system work. Pumps vs fans, liquid vs air for heat transfer, such a complex comparison! Advice please.

Responses (3)

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Julien Comtois Oct. 5, 2021, 11:24 a.m.

The walls of the home I am planning are likely going to be ICF. Amvic has forms that give R-30. There will still need to be solar and wind in the mix to power the house , heat water and charge the Tesla. I have someone with regards to planning the solar system, but the passive solar idea has crocced my mind to reduce the size requirement of the Air to water heat pump or maybe go to a simpler thing like point of use electric water. Questions: Do you have names of Canadian companies or suppliers for passive solar heating panels? How about construction diagrams for how to tie it in to the legalett system? Thanks.

Mike Reynolds Oct. 5, 2021, 1:57 p.m.