immersion heater hot water problem

keystone

Not quite. Vent should come directly vertical from top of cylinder and continue to rise until it gets to the point where it discharges over the CWST. If the CWST is not directly above the cylinder then you'll have to something like this:



Cheers

DVardysShadow

Pipesizes. Is the pipe from the CWST to the cylinder at least 22mm? No 15mm run? The draw off connection from the vent would IMO best be done in 15mm [vent itself should be full bore 22mm from the top of the cylinder].

And anything you can do to raise the level of the water in the CWST relative to the bottom connection of the cylinder would be good