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  1. #1
    Silver Member
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    Sep 2001
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    123
    Location
    Kentucky (in the bluegrass!)
    Tractor
    Kioti LK3054, IH cub cadet 782, Grasshopper 721D2

    Default Shop radiant floor heat

    I'm considering putting in a radiant heat floor system (concrete pad) in a future shop i'd like to build. I plan on insulating walls to R-19 and ceiling to a R-25~30 and use blue board under the pad. The heat will be supplied from a domestic hot water heater (electric). Does anybody have a similar setup that I could compare heating costs with? I would probably keep the temperature at about 60 degrees F. Oh yeah the sq.ft. of shop is 960, and I live in central KY. Any info is greatly appreciated!

  2. #2

    Default Re: Shop radiant floor heat

    there has been a lot of discussion of these systems on www.agriculture.com Shop Talk board.

  3. #3
    Gold Member
    Join Date
    Jul 2002
    Posts
    451
    Location
    Northeast Ohio
    Tractor
    GC 2310

    Default Re: Shop radiant floor heat

    http://www.radiantec.com/radman1f.pdf

    I just purchased from here

    I do not know if it Works yet as I have just poured the slab.

    Doug

  4. #4
    Silver Member
    Join Date
    Sep 2001
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    123
    Location
    Kentucky (in the bluegrass!)
    Tractor
    Kioti LK3054, IH cub cadet 782, Grasshopper 721D2

    Default Re: Shop radiant floor heat

    Thanks for the replies. DougM, Radiantec is where I was looking also, Did they treat ya good? I would sure like to know how yours pans out.

  5. #5
    Gold Member
    Join Date
    Jun 2001
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    282
    Location
    Western Maryland
    Tractor
    Kubota M6800, Ferris IS4500Z Cat Diesel mower

    Default Re: Shop radiant floor heat

    I'm sure you've given it some thought, but one guy I know isn't real happy with his use of in-slab radiant heat for a shop/barn. If you are planning to maintain a constant warm environment, you could be happy with this arrangement, but in this guy's application, he intended to keep a moderate temperature when he wasn't working in the shop, and increase the temp when he was there.

    -- The problem is that the large thermal mass of the slab floor doesn't respond quickly to temperature changes, so if you "turn up the heat", don't expect your environment to warm up very fast.

    Good Luck!

  6. #6
    Silver Member
    Join Date
    Jul 2001
    Posts
    244
    Location
    Geneseo, New York
    Tractor
    John Deere 4300

    Default Re: Shop radiant floor heat

    ljh2,

    The in floor heat is wonderful but you are right about the slow warm up. Electric in our area would also be very expensive. Most people go with propane or natural gas.



  7. #7
    Elite Member rockyridgefarm's Avatar
    Join Date
    Mar 2002
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    4,455
    Location
    Road 4310
    Tractor
    Deere 4310 HST MFWD

    Default Re: Shop radiant floor heat

    Size the system for the standby heat and use radient heat for the wuick warm up

  8. #8
    Elite Member rockyridgefarm's Avatar
    Join Date
    Mar 2002
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    4,455
    Location
    Road 4310
    Tractor
    Deere 4310 HST MFWD

    Default Re: Shop radiant floor heat

    Electric water heat aint cheap![img]/w3tcompact/icons/shocked.gif[/img]

    What I would do is use some passive solar features in the design. Basicly make sure there is plenty of south facing glass where the low winter sun can heat that slab. Use overhangs or decidous trees to shade them in the summer. There are lots of sources for diagrams to size them properly, as well as, the proper placement of shading. It wouldn't add very much to the cost of the shop, and could do most of your heating.


  9. #9
    Silver Member
    Join Date
    Sep 2001
    Posts
    123
    Location
    Kentucky (in the bluegrass!)
    Tractor
    Kioti LK3054, IH cub cadet 782, Grasshopper 721D2

    Default Re: Shop radiant floor heat

    I like your idea of the passive solar heat, as far as the water heater, I'm lucky enough to live in an area that has one of the lowest rates in the country [img]/w3tcompact/icons/grin.gif[/img] for electric! Thanks

  10. #10
    Veteran Member
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    Sep 2000
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    2,045
    Location
    russellville, arkansas
    Tractor
    Kubota M4900, B7510 and RTV

    Default Re: Shop radiant floor heat

    there is a shop about 10 miles from me that uses radiant floor heat, and it is great; they used the orange natural gas line in their floor, and tied it to a natural gas water heater. a pump is hooked to the thermostat, and when heat is needed, the pump kicks on. i was in the shop once when the outside temp was 10degrees F; and it was very comfortable.
    heehaw

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