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General Outdoor Furnace Discussion / Re: Low temp system ??????
« on: January 24, 2015, 06:21:09 PM »
sorry, left that out, everyone says 1/2 pex 300 foot max, so went with 10 loops of 250 foot each 5/8 pex,
i thought i was overkilling it but may still need more
i have looked all over the net
is there any place that gives pex/ slab btu output at given temps?
i thought i was overkilling it but may still need more
i have looked all over the net
is there any place that gives pex/ slab btu output at given temps?
2
General Outdoor Furnace Discussion / Low temp system ??????
« on: January 24, 2015, 04:15:29 PM »
I'll start with saying thanks for the forum, i have studied for hours on here,
these are probably basic questions that have been covered, but anyway
background
1. wanting to build an OWB + solar system to heat 1939 built 2 story 1700square foot house and 40 x 70 x 16 foot side wall garage, wall and ceiling total insulation value average around r10-12, 2inch foam around slab, no insulation under slab,
2500 foot of 5/8 pex in 6 inch slab on 1 foot centers
no plumbing in house as of yet, plan to lay sleepers for 1/2 pex under eng. laminate hardwood, to that end i want the system to run at an operating temp around 90-110f, will have a 1000 gal insulated tank in the garage for storage, goal is to let solar do most of the work and only build fire as needed but i've read that low boiler temps cause corrosion??? is this an issue,
would like to build a fire in the morning or noon to bring the tank up to 130-140 only burning one wheel barrow load a day, unless super cold
have seen a few homemade systems running like this with no issues but want to see if anyone on here has a similar setup
will run a heat exchanger to the tank anyway, i could run the boiler at a higher temp for less time, but dont want to if not needed
here are a couple pics if i can load them
thanks for any pros or cons
these are probably basic questions that have been covered, but anyway
background
1. wanting to build an OWB + solar system to heat 1939 built 2 story 1700square foot house and 40 x 70 x 16 foot side wall garage, wall and ceiling total insulation value average around r10-12, 2inch foam around slab, no insulation under slab,
2500 foot of 5/8 pex in 6 inch slab on 1 foot centers
no plumbing in house as of yet, plan to lay sleepers for 1/2 pex under eng. laminate hardwood, to that end i want the system to run at an operating temp around 90-110f, will have a 1000 gal insulated tank in the garage for storage, goal is to let solar do most of the work and only build fire as needed but i've read that low boiler temps cause corrosion??? is this an issue,
would like to build a fire in the morning or noon to bring the tank up to 130-140 only burning one wheel barrow load a day, unless super cold
have seen a few homemade systems running like this with no issues but want to see if anyone on here has a similar setup
will run a heat exchanger to the tank anyway, i could run the boiler at a higher temp for less time, but dont want to if not needed
here are a couple pics if i can load them
thanks for any pros or cons
Pages: [1]