Disconnecting a back boiler

doxy

I'm getting a new natural gas system in, and the plumber has told me that the existing back boiler will need to be disconnected.

I believe the normal way of doing that is to drill a hole in back boiler and drain it from downstairs. He's proposing to disconnect it from upstairs so that next time I light a fire the water in the back boiler will just evaporate upstairs (in the attic i'm guessing?).

I'm a bit worried that using that approach might cause condensation in the attic. Should I be worried?

my3cents

I'm not a plumber and that approach worries me. The back boiler is meant to be kept cool by the water removing the heat, no water and the metal will burn through.

K.Flyer

The back boiler must be drained completely and the pipes from it must be left open.
It would always be preferable to remove the back boiler, but I have seen many left in with no problems occuring.

Robbie.G

Look here and make sure it's disconnected properly
http://www.hse.gov.uk/services/localgovernment/boilers.htm