I was wondering whether it would be a good idea to replace some 15mm pipe with 22mm. I currently have 3 radiators on a single 15mm branch. Small, medium and large, approx 10,000BTU's at 50C in total. The room with the large radiator is always cold in the Winter, partly due to insulation but obviously a bit more heat output would help. If I were to put each radiator on its own branch, would there be any significant benefit?
I have smart heating (Evohome) so on a cold day the rads will typically be on low (or off) during the day and then high shortly before I arrive home. It would be good to minimise the time it takes to heat up as the rooms aren't always fully warm when I get home, particularly in the room with the large rad.
From what I've read, I think my setup is probably a bit borderline and not ideal. Going to 22mm would probably slightly reduce the load on the pump and have the rooms warm up a bit quicker. I'm in a position where the flooring is up and the job would be quite straight forward. I can do the work myself so the cost is minimal.
What do you think, does it sound like it would be beneficial or not? Do you always like to have each rad on their own branch when possible? Would you make the change if it was your own house?
I have smart heating (Evohome) so on a cold day the rads will typically be on low (or off) during the day and then high shortly before I arrive home. It would be good to minimise the time it takes to heat up as the rooms aren't always fully warm when I get home, particularly in the room with the large rad.
From what I've read, I think my setup is probably a bit borderline and not ideal. Going to 22mm would probably slightly reduce the load on the pump and have the rooms warm up a bit quicker. I'm in a position where the flooring is up and the job would be quite straight forward. I can do the work myself so the cost is minimal.
What do you think, does it sound like it would be beneficial or not? Do you always like to have each rad on their own branch when possible? Would you make the change if it was your own house?