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Author Topic: Seperating floor heat form central air  (Read 1124 times)

fryedaddy

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Seperating floor heat form central air
« on: November 12, 2014, 07:29:54 AM »
Currently my system is ran through a large loop with (2) hvac units then into the floor.

I'd like to seperate my floor heat from my HVAC units. I have (4) lines running into the house.
(2) going to and from the HVAC/Floor system and (2) going to my DHW.

Could I seperate the floor, run a loop for the DHW with heat exchanger and run my floor from that "zone"?
 
Let me know if info is needed.
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LittleJohn

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Re: Seperating floor heat form central air
« Reply #1 on: November 12, 2014, 07:44:33 AM »
With the line that runs to your DHW, assuming that you have a side arm or FPHE, to seperate drinking awater from BOILER WATER !!
All you should have to do is add a set of closely spaced tees on the return (between DWH and OWB), add a mixing device to drop water temps below 120f (assuming inslab), install a pump (between mix device and radiant manifold) and air units are seperate from floor. Controls may get a bit complex, but I am guessign at a minimum you will need a seperate thermostat and relay to turn pumps on but other than that, you should not need too much more.

But like always  :photo: are nice

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