feed and expansion tank but no vent??

[Mike Jackson]

Saw one like this yesterday so is it ok to leave like this as it can still feed back into the tank

As long as the boiler has an over heat stat.

 

[apcdave]

Thanks chaps - a new one on me. This sort of arrangement is thankfully not too common round these parts

cheers dave

 

[Killy Bing]

Thanks chaps - a new one on me. This sort of arrangement is thankfully not too common round these parts

cheers dave

if you come across one don't be tempted to change it.

usually changed to combined if the system has issues with pumping over or drawing air in

 

[happyflyer]

But less air issues once filled, most open vent systems i fit from new, i do it like this

A will never pump over and well said Killy never alter it, most of these did have a combined Feed and Vent pipe teed in just under the tank and then some smart bum decide they wanted a separate feed and expansion and the fun started.