Hot in the Pews

Firedragon_4

were piped that way when fuel was cheap and they didn't want freeze ups. Looks like a job for next summer or a really fast installer depending on the size of the building.

Jay Martin

Hot in the Pews

We recently purchased a 25 year old church and are having over heating problems.
One wing has three zone loops piped to baseboard fintube radiation. (Basement, first and second floor).
The returns from all three floors are connected to a common return main at the basement ceiling. There are about 15 return risers off the main as it raps around the exterior of the building.

When the basement zone is running, hot water circulates from the return main up through the return risers to the fintube on the upper floors causing overheating. (first and second floor zone pumps are off).

The fintube only has an isolation valve and a circuit setter (no control valves).
Is there an easy fix for this with out putting check valves at each riser?

(Riser diagram attached)
Thanks Jay

Weezbo

might be as Fire Dragon says.....

this is really different thought...take and pull one of the returns off dump it into a water heater buffer (mixing)tank put a 3 way mixer Ifc and isolate the boiler supply from the boiler...........or temp down the supply to a fixed supply number ,or bust the supply and returns off completely and use an injection system to supply really cooler water ..........there is no cheap quick fix that i see...