Hydronic Floor

 
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Old 01-10-2018, 11:18 AM   #1
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Hydronic Floor


I have a client with a 20x20 garage/shop that needs heat other than electrical. I really can't raise the height of the floor so I would need to install the pex into the exsisting (uninsulated) concrete slab by cutting/chisilling out the grooves for the pex. Removing the slab completely and insulate/re-pore is not an option due to cost. So would it be worth installing in the current slab from a heat loss perspective? I know they would be loosing heat downward but would it be more economical than heating the garage with an electric heater 4 months out of the year? (Ca.$100 a month in heating cost)
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Old 01-10-2018, 11:22 AM   #2
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Re: Hydronic Floor


$400 per year is too expensive?

No, I don't think you'll save any money by putting floor heat in your garage.


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Old 01-10-2018, 09:46 PM   #3
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Re: Hydronic Floor


Heat pump and lots of insulation. Any modifications to save money are going to carry a high ROI. Insulation is probably the cheapest, but we don't know what it is now.
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Old 01-10-2018, 10:55 PM   #4
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Re: Hydronic Floor


Heat directly into the space will be more efficient then via an uninsulated slab, and chiseling out space for the pex would be a lot of work. If you're trying to heat with an existing hydronic boiler (to use a cheaper fuel source maybe), then use baseboards or a unit heater. Or go with a heat pump, it'll be 1/2 the electric use, maybe better depending how cold your environment is.
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Old 01-11-2018, 12:32 AM   #5
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Re: Hydronic Floor


If you can chisel groves for hydronic tubing in a concrete slab, cheaper than removing the slab and placing new concrete.... I'll shake your hand.
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Old 01-11-2018, 06:24 AM   #6
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Re: Hydronic Floor


I cannot imagine cutting the slots in a floor for PEX. That is simply nuts.
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Old 01-11-2018, 07:59 AM   #7
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Re: Hydronic Floor


This made me laugh.
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Old 01-11-2018, 08:43 AM   #8
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Re: Hydronic Floor


It almost HAS to be a homeowner with lot's of time on his hands, otherwise it makes no sense.

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