Unvented Direct Hot water Cylinder

[Thefailsafe2012]

Eyerony??

Was it done on porpoise?

 

[BroadReach]

Dooleberat! Wodnt mak thet mistak wood ey

Deed yoo spoot th otr on?

Kloo "wrong"

 

[Brightspark2]

As mentioned an unvented systems means the system is all enclosed where as a traditional vented system is open like an open top water tank in the loft.

Google it for pretty pictures and better explanations.

 

[guinnessgixer]

can be very high pressure, (depends on area) there are cases of being wrongly plumbed and have blown up taking the side wall out of a house hence the training and certification to labc when installing them!