Recent content by Grashopr

caper: I've been exactly where you are right now. I ran 2 80-gallon electric hot water heaters and did everything I could to get them to heat my shop, and the problem was, as GSFFC said, isn't a BTU input problem, it's a recovery gal/hr problem. Your hot water heater is only going to recover...

the floor is working perfectly! Tonight they are talking about -20F (which is REALLLLLLLY cold for Kansas), it's +4F right now with a -6F windchill and I'm working in a long sleeved tee-shirt. Since installing the Takati TK-Jr, we've gone through about 280 gallons of Propane, which at our rate...

We got the Takagi T-K jr in, with it on for a little over 20 mins running at 140F output (afraid to run 180F setting, as our system pressure at 180F is at 125psi, which is right at the pressure rating for that temp on the PEX), we raised our output temperature over 10F to just over 70F. First...

Thank you!

right now, the thermostat on the wall says 67F

Sneezer, area you always this negative, or is this a new thing for you? I dont see where you ever asked what the temperature in the building was... but if you had read my constants.. you will see that the target inside temp is 68 degrees. I am crunching the numbers at +20F because that is...

Holy Cow that's huge.

Number of heating loops is not alterable at this point.. they are already in the floor. We are running 300ft loops of 1/2 Pex on 12" centers (except for the outer loop which is on 6" center for the outermost loop). 14 loops total.

I appreciate both of you guys' input.. no matter how much I seem like I'm griping. I've gone over this so many times that I'm starting to get brain fade from it and fresh grey matter is always good Here are my constants: Shop Size: 60x60x10 Total Volume: 3600 Sq Ft Ceiling: 10" of...

Looks terrific. I've always found, it dont matter how big you make it, you'll find some way to fill it.. lol.

There is no air in the lines... I dont know how much clearer I can be about that. The pumps are working... also been said a few times. I've gone over the Zurn heat loss calculator using 'high' and 'low' estimated nubmers for the unknowns, and it shows that we should be somehwere in the...

Sneezer: one of us is confused, and apparently it's me. I have been under the impression that my room temperature is controlled by floor temperature. If I can't get the floor above 35f, then how is the room going to warm up? Last winter, our average floor temperature was in the low 40's with...

Redsky, I appreciate your position, and I completely agree that a knowledgeable professional would be a terrific step in the right direction. Problem is, radiant systems are still a sort of "Black Magic" here in Kansas and I have spoken with 4 'recommended experts' of which none gave me any...

I currently have the two smaller zones turned off and the 'big' zone turned on and the floor is running at a pretty consistent 60deg, but currently the nightly temps are still only in the low 40's, day temps are in the mid-70s, so it's not a big push to keep the slab at 60. tdkkart: I agree...

Last year we built a new 60x60 shop to move our motorcycle paint and repair business into. After hearing about the benefits of Radiant Heat, we decided to go that route, and installed 3 zones; One zone for our display and office area. One for the paint booth, and the last one for the largest...