The renovation of my bungalow has been going on for several years and along the way I've re-piped the entire Central Heating system.
For right or wrong, the main circuit is 22mm, with the branches in 15mm. Every inch is insulated. I understand this is likely to be overkill. Now I'm nearing the end, I want to be sure that I complete the circuit in the correct way. This is only a bungalow with about 8 or so rads.
Now, I understand that usually the last rad would serve as the end of the circuit, so the final section of the supply pipe would go in at TRV end, and the return run would begin at the other end picking up all the other rads on the way. However, since my main circuit is entirely 22mm, by ending the circuit across a rad would serve as a reduction in the 22mm system, so would it be acceptable for me to essentially join the supply and return pipework making a continuous 22mm loop and branch the last rad off as all the others?
For right or wrong, the main circuit is 22mm, with the branches in 15mm. Every inch is insulated. I understand this is likely to be overkill. Now I'm nearing the end, I want to be sure that I complete the circuit in the correct way. This is only a bungalow with about 8 or so rads.
Now, I understand that usually the last rad would serve as the end of the circuit, so the final section of the supply pipe would go in at TRV end, and the return run would begin at the other end picking up all the other rads on the way. However, since my main circuit is entirely 22mm, by ending the circuit across a rad would serve as a reduction in the 22mm system, so would it be acceptable for me to essentially join the supply and return pipework making a continuous 22mm loop and branch the last rad off as all the others?