Hi All,
I'm trying to work out why the 'rule of thumb' is ~3 radiators on a single 15mm run...
I've calculated the heat demand of my house at ~14kW:
Then working out the linear flow velocity required to deliver that volume in a 15mm pipe (13.6mm ID), it comes out as ~1.1 m/s, which is ok.
So what am I missing? Why couldn't 15mm pipe be used in this case for the main line and the radiator branches?
Thanks!
I'm trying to work out why the 'rule of thumb' is ~3 radiators on a single 15mm run...
I've calculated the heat demand of my house at ~14kW:
- 3 bed 1930s solid wall, end terrace, no wall insulation
- 7 radiators
- 2 air change per hour for all rooms
- 21deg in all rooms
Then working out the linear flow velocity required to deliver that volume in a 15mm pipe (13.6mm ID), it comes out as ~1.1 m/s, which is ok.
So what am I missing? Why couldn't 15mm pipe be used in this case for the main line and the radiator branches?
Thanks!