I have a boiler that powers the central heating and hot water storage tank with no valves.
I am going to add an extra Zone into the central heating.
From the boiler there are 2x 22mm pipes and 2x 28mm pipes. I need to know which ones to fit the 2x 2-way valves into. I can't see where the pipes come from on the boiler, just where they come out under the floorboards.
When I turn the central heating on its the 22mm pipes that get hot, so it's these ones I need?
I am going to add an extra Zone into the central heating.
From the boiler there are 2x 22mm pipes and 2x 28mm pipes. I need to know which ones to fit the 2x 2-way valves into. I can't see where the pipes come from on the boiler, just where they come out under the floorboards.
When I turn the central heating on its the 22mm pipes that get hot, so it's these ones I need?