Look up "Vent Pipe Blanked Off" in Search.I don't know why it hasn't always been like this as nothing has changed so am tring to identify a fault that may not be there, what is involved with combined feed and vent?
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Look up "Vent Pipe Blanked Off" in Search.I don't know why it hasn't always been like this as nothing has changed so am tring to identify a fault that may not be there, what is involved with combined feed and vent?
Sorry for my ignorance, the feed from the CH header tank joins the return to the boiler in the same place (2 adjacent tees) as the vent out the roof joins the return to the boiler. These connections are maybe 2m from the boiler and 1m max from the pump. Where should they be and what pipework would change to make combined feed and vent?It's essential correct but the vent should really be installed closer to the cold feed, or visa versa, the closer the better but no further than 150mm apart, but you can't beat the combined cold feed and vent IMO.
Yes, based on the arrow of flow throught the pump the feed and vent are on the pipework from the boiler, to the pump and then through the motorised valvesWill reply in more detail tomorrow but the vent is on the flow from the boiler? The pump is pumping from the flowside of the boiler through the mot.valves?
OK, but from the boiler it should be Vent then Cold Feed then the Pump, (VCP), not cold feed ,vent, then pump.Yes, based on the arrow of flow throught the pump the feed and vent are on the pipework from the boiler, to the pump and then through the motorised valves
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