Recently had a new CH system installed - The flow and return pipes are 22mm in the ground floor (easy access as there is crawl space under the house) however the flow and return pipes are 15mm in the upper floor as he could not notch the joists any deeper.
As the upper floor radiators are further from the boiler and the flow and return pipes are thinner the radiators take a lot longer to heat than in the ground floor.
I was thinking of running 22mm flow and return pipes as far as possible along the first floor in line with the joists and using a manifold to connect 15mm pipes to each radiator seperately (5 in total). This would mean an increased pipe length of around 12m.
I am not sure if this would make things better due to the larger flow and return pipes or worse due to the increased pipe length?????
Hope that all made sense??
Any advice would be most appreciated.
Thanks
As the upper floor radiators are further from the boiler and the flow and return pipes are thinner the radiators take a lot longer to heat than in the ground floor.
I was thinking of running 22mm flow and return pipes as far as possible along the first floor in line with the joists and using a manifold to connect 15mm pipes to each radiator seperately (5 in total). This would mean an increased pipe length of around 12m.
I am not sure if this would make things better due to the larger flow and return pipes or worse due to the increased pipe length?????
Hope that all made sense??
Any advice would be most appreciated.
Thanks