B
Beboers
Hi All , I'm a little.bit confused on how to convert a semi gravity heating system to fully pumped and what pipe work changes have to be done to make it safe ie vent pipe! I have been on a job where the primary flow to cylinder had a pump put on it and then a tee put on it with a motorised valve for the hw and a motorised valve for the ch which was just teed in to the existing ch flow from boiler but was capped from boiler if that makes sense? But the cylinder cupboard stayed the same so to me it seems as tho the vent pipe isBlocked by the motorised valve when just ch would be on? If any body has any diagrams or pics of how to do it properly would be much appreciated!! Thanks
