Quote:
Originally Posted by 6spdC6
This to the best of my knowledge only occurred with the newer revised valves of a few years past. I installed heating systems and I also changed out literately hundreds of propane tanks of all sizes with the old fashioned valves and never had a problem. In the old days most construction sites used many salamanders ( large portable heaters) with their own individual bottles for temporary heat!
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It's the volume of propane gas that causes the freezing of the manifold unless fed from multiple tanks.
Below is a picture of me holding one of the piston rings for the Cooper pumping engine. It has a 21-1/2" bore and 36" stroke.
