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RAYBOB58 No that black line you see there is a hose coming off my condensing/back flow preventer on my boiler exhaust vent. I have the hose going into a bottle on the floor. I attached an image if you can open it up. Behind the guys working along the wall you can see my supply and return lines...

One last thing I will never ever understand is why a "boiler" is better than say a decent on demand hot water heater The unit I have is called a micro boiler which is an on demand water heater. Once the thermostat kicks the pumps on and the water starts flowing, the flow kicks the boiler...

I had used the 6 mill plastic between the wood and tin on my garage. I went with blown-in Cellulose over the fiberglass. One reason for the plastic was that with blow-in that it will work its way into the seams of the tin where it over laps unless you put screws in that seam to hold it tighter...

I agree with the big drop in temp. If I keep primary pump on high and turn secondary pump on low, I will have warmer water going into manifold. I had seen it up around the 81 - 82'F. But I only have about 0.4 gpm flow rate going through each loop. I have a hard time with the idea of heating the...

I tried to call Hydro-Smart on Friday but they must have been closed so I couldn't find out anything on Thermostat Lonnies Performance You are on the right track with gathering data... if you can get supply/return temps from the primary simultaneously with the secondary I can help you determine...

Thanks for everyone's comments and help so far. Much appreciated. I got to thinking about this comment I suspect that the stat that you have is trying to modulate power to control desired temp. For example it is applying 10% power and your system is seeing it as on. The thermostat has on the...

I am curios as to what pumps they use on that board. If you could pass that on I would appreciate it. both primary and secondary pumps have Lo, Med, Hi settings. The pumps are Grundfos Type UPS15-58FC P/N 98933633P1

I did have that thermostat first, but was told to get one with a floor sensor and run off that. The one I got was the only one with a floor sensor. If there is a better one, I would have no issue replacing this one.

You have no idea how much better I feel now. I got everything through Menards. I can go off the air temp by switching thermostat to AF and disconnection floor. The thermostat box says for Electric & Hydronic heating

Yes, both primary and secondary pumps have Lo, Med, Hi settings. The pumps are Grundfos Type UPS15-58FC P/N 98933633P1

I got my in-slab radiant heat system in my garage up and running about 3 weeks ago and have some questions on what would be considered normal operation and on some settings. The garage is 40X64X16 pole barn. I have 2" Foamular 250 R10 under the slab and along the sides of the slab extending down...