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- 22
The combi boiler has 22mm flow and return outlets but they are immediately reduced to 15mm as they come out the boiler.
After the pipes come out of the boiler, they split off into 3 branches. Branch 1 is for a single radiator only. Branch 2 feeds about 9000BTU diownstairs and branch 3 feeds about 13000BTU upstairs.
The plate heat exchanger is accumulating debris and getting blocked or reduced flow. After it is cleaned out it is OK for a few months and then starts to have problems again.
Could the flow and return pipe size being only 15mm affect the way sludge and debris move through the system and cause the plate exchanger problem?
Is it worth upgrading the pipes to 22mm?
After the pipes come out of the boiler, they split off into 3 branches. Branch 1 is for a single radiator only. Branch 2 feeds about 9000BTU diownstairs and branch 3 feeds about 13000BTU upstairs.
The plate heat exchanger is accumulating debris and getting blocked or reduced flow. After it is cleaned out it is OK for a few months and then starts to have problems again.
Could the flow and return pipe size being only 15mm affect the way sludge and debris move through the system and cause the plate exchanger problem?
Is it worth upgrading the pipes to 22mm?