I have an interesting problem. I have a old vertical tube pressurized wood boiler in my garage and pipe water into my house 150ft thru thermopex to an hx, then a 500 gal buffer tank into radiant floors. Been running it a few years and tinkering along the way and cannot get water temp over 130 degrees. Have thermometers everywhere in the system, only losing a few degrees from the garage to the house. The other day I decided to test run the system in an open configuration, auto fill valve off (set at 12 psi, and system venting thru highest pipe. Water temp went to 170 degrees in a ten minutes... Any thoughts? I have an expansion tank set at 14 psi, and am pumping away from it. Thanks!!
Open vs closed system temperature
- Thread starter Treefarmer1988
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