Hi,
I've got a bit of a sticky problem. I've just bought a house and need to install a rad in my lounge. Previous elderly occupant only had a gas fire in there (bizarrely). I've worked out i'll need a rad putting out 3500 BTU. No problem, i've installed rads and pipe before. Trouble is, I have a purely 8mm microbore system, with just one combined manifold. I've got spare feed/returns on the manifold for 8mm pipe. However, the manifold is at the front of the house, and the closest I can get the radiator means a very long run in microbore - 18m in total there and back. It's an open vent system, with a 5m head pump. I can't find a decent set of tables to work this out, and in any case would like to be sure before I try it!
Will I be able to get 3500 BTU out of such a long run in 8mm?. The only other size pipe i have is 22mm to manifold from boiler. I don't really want to do anything with that if I can possibly help it. It's a small system, only 6 other rads, all of less than 3500 BTU output, and within 6m of manifold -i'm pretty sure this new run will be the index.
Thanks in advance!
I've got a bit of a sticky problem. I've just bought a house and need to install a rad in my lounge. Previous elderly occupant only had a gas fire in there (bizarrely). I've worked out i'll need a rad putting out 3500 BTU. No problem, i've installed rads and pipe before. Trouble is, I have a purely 8mm microbore system, with just one combined manifold. I've got spare feed/returns on the manifold for 8mm pipe. However, the manifold is at the front of the house, and the closest I can get the radiator means a very long run in microbore - 18m in total there and back. It's an open vent system, with a 5m head pump. I can't find a decent set of tables to work this out, and in any case would like to be sure before I try it!
Will I be able to get 3500 BTU out of such a long run in 8mm?. The only other size pipe i have is 22mm to manifold from boiler. I don't really want to do anything with that if I can possibly help it. It's a small system, only 6 other rads, all of less than 3500 BTU output, and within 6m of manifold -i'm pretty sure this new run will be the index.
Thanks in advance!