Cannonball
Well-known member
Hi all.
Read through the many posts on in floor heating and really need some one to simplify what my options are.
Building is an 18'x24' (432 sq.ft.) with 12' feet of height inside. 2X6 walls at R20 and R-40 in roof. Monolithic slab with two runs of 1/2" pex of about 220' each.
Slab is on 2" of EPS foam with 2" of foam on the side down 2' and winged out 2'.
Live in a cold climate with a good part of winter at 0 deg.F (-15 to -20 C.)
My thoughts were to go one of two ways:
Thought one was to use an electric Titan water heater (simple system) to warm slab and keep building above freezing and install a 40k BTU nat.gas/fan Mr. Heater to bring building temp. up when I am out there working.
Thought two was to heat building solely with the radiant floor heat. Keeping building at 55-60 def.F.
This would mean a natural gas once trough water heater or small boiler.
Not sure of what a small and simple boiler systems cost would be like and if this is even an option.
Gas is cheaper here than electricity.
I have read a lot of negatives on using the once through gas water heaters for floor heat, but people are using them.
The system will be glycol filled and have no water supply to the building.
Will be doing electrical soon so need to have my path forward decided for the rough in.
Mostly looking for a rough break down of what each system would cost parts wise for a comparison, as well as your thoughts on each install. Will be doing install my self.
Thanks.
Read through the many posts on in floor heating and really need some one to simplify what my options are.
Building is an 18'x24' (432 sq.ft.) with 12' feet of height inside. 2X6 walls at R20 and R-40 in roof. Monolithic slab with two runs of 1/2" pex of about 220' each.
Slab is on 2" of EPS foam with 2" of foam on the side down 2' and winged out 2'.
Live in a cold climate with a good part of winter at 0 deg.F (-15 to -20 C.)
My thoughts were to go one of two ways:
Thought one was to use an electric Titan water heater (simple system) to warm slab and keep building above freezing and install a 40k BTU nat.gas/fan Mr. Heater to bring building temp. up when I am out there working.
Thought two was to heat building solely with the radiant floor heat. Keeping building at 55-60 def.F.
This would mean a natural gas once trough water heater or small boiler.
Not sure of what a small and simple boiler systems cost would be like and if this is even an option.
Gas is cheaper here than electricity.
I have read a lot of negatives on using the once through gas water heaters for floor heat, but people are using them.
The system will be glycol filled and have no water supply to the building.
Will be doing electrical soon so need to have my path forward decided for the rough in.
Mostly looking for a rough break down of what each system would cost parts wise for a comparison, as well as your thoughts on each install. Will be doing install my self.
Thanks.