Radiant floor heat supply temp

[jrhaines2]

I have a 32' x 48' shop with 1500' of 1/2 and am using a Takagi T-KJr2U.

What would be a good supply temp?

Currently my shop is 68 with 100 supply and 77 return and 2.4 gpm.The outdoor temp is 35 if that is of any interest.

 

[JCfreak]

Sounds like 100 is working pretty well.

 

[tdkkart]

100* supply is fine, most recommend 100-120, and that mainly depends on how well your heat source works.
I'd turn down your room temp. Unless you're working in shorts, 68 is really warm in a floor heated space. If I run mine at much above 55* I'm plenty warm in jeans and a long sleeve shirt unless I'm just sitting.

 

[whytry]

my 36x44 shop is heated with a wood boiler my supply is 120 return 80 it pretty much stays that way in all temps (below 35) room temp is 67

 

[jrhaines2]

[QUOTE I'd turn down your room temp. Unless you're working in shorts, 68 is really warm in a floor heated space. If I run mine at much above 55* I'm plenty warm in jeans and a long sleeve shirt unless I'm just sitting.[/QUOTE]

Surely you jest!

I really wish I were one of those people who could eat just about anything and be comfortable at 55* but a back injury early in life has hindered circulation to my legs and I need lots of heat to feel comfortable.

Thanks for all the replies.

 

[anthony666]

Currently my shop is 68 with 100 supply and 77 return and 2.4 gpm.The outdoor temp is 35 if that is of any interest.

i'd be happy with those numbers, i bet the boiler is condensing like a SOB

 

[jrhaines2]

i'd be happy with those numbers, i bet the boiler is condensing like a SOB

And you will lose that bet.

So why don't I have condensation while you are so sure that I do?

 

[anthony666]

hahaha .. i just looked it up, it's not a condensing boiler, lol .. that explains why it's not condensing

 

[jrhaines2]

hahaha .. i just looked it up, it's not a condensing boiler, lol .. that explains why it's not condensing

No soup for you.Come back in one year!