Infloor heat

Hayden48 · Oct 11, 2015

I am hooking a woodmaster to in floor heat in a garage not sure what all I need have bought a manifold 6 way not sure where to start with the hook up plan is 3 inch polystyrene and 200 feet runs have pumps running 24/7 at the stove not sure how to hook up from there

Bob Rohr · Oct 11, 2015

Hayden48 said:
I am hooking a woodmaster to in floor heat in a garage not sure what all I need have bought a manifold 6 way not sure where to start with the hook up plan is 3 inch polystyrene and 200 feet runs have pumps running 24/7 at the stove not sure how to hook up from there

Is that an open un-pressurized stove?

Will there be an additional backup boiler connected?

At the very least you will need a mixing device to limit temperature to the stove.

Did you run a load calculation to size the loops and flow requirements?

Hayden48 · Oct 13, 2015

Bob Rohr said:
Is that an open un-pressurized stove?

Will there be an additional backup boiler connected?

At the very least you will need a mixing device to limit temperature to the stove.

Did you run a load calculation to size the loops and flow requirements?

Hayden48 · Oct 13, 2015

Yes
No back up yes a four way mixing valve
No not sure how to do a load calculation

Bob Rohr · Oct 14, 2015

Here is a free ap to do heatload calcs, a good first step.

http://www.slantfin.com/professiona...onals/tools/virtual-heat-loss-calculator.html

Hayden48 · Oct 14, 2015

Bob Rohr said:
Here is a free ap to do heatload calcs, a good first step.

http://www.slantfin.com/professiona...onals/tools/virtual-heat-loss-calculator.html

Don't really understand calculater can't get it to tell me tube length and size just want to tell me duct size

Bob Rohr · Oct 14, 2015

Hayden48 said:
Don't really understand calculater can't get it to tell me tube length and size just want to tell me duct size

Duct size? It's a heatload calculator, it should give you a number in BTU/ hr that the shop requires. It might suggest SlantFin products at some steps.

With the load number in BTU/hr the loops will be sized and pumped to supply that amount of heat energy to the space.

You are wise to use 3" insulation, be sure to insulate the edge of the slab, that exposed area is the highest heatloss.

In most cases loops at 12" on center should be plenty, but it really depends on the building, windows, doors, and insulation. Tighter tube spacing never hurts and allows you to heat with lower supply temperature, which in turn extends the useable heat from the stove.

You only get one chance to put tube in concrete, it is worth some number crunching to get it right.

Hayden48 · Oct 14, 2015

Bob Rohr said:
Duct size? It's a heatload calculator, it should give you a number in BTU/ hr that the shop requires. It might suggest SlantFin products at some steps.

With the load number in BTU/hr the loops will be sized and pumped to supply that amount of heat energy to the space.

You are wise to use 3" insulation, be sure to insulate the edge of the slab, that exposed area is the highest heatloss.

In most cases loops at 12" on center should be plenty, but it really depends on the building, windows, doors, and insulation. Tighter tube spacing never hurts and allows you to heat with lower supply temperature, which in turn extends the useable heat from the stove.

You only get one chance to put tube in concrete, it is worth some number crunching to get it right.

Not sure if I have the rite calculator then but the garage is 40 by 32 one entry door and two garage doors one 16 by 10 and one 12 by 10 one small window 2 feet by three feet I had planed on outing the loops 12 inches apart and 200 feet in length but you got me a little worried to do that with out getting it

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Infloor heat

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