Back Boiler

[jrab1970]

Hi Guys

Ive been asked to remove a back boile and replace it with a combi. Not been round to see the job yet and dont have any details about make and model. Ive never removed a back boiler before, anything i should know before i go.

Any advice will be greatfuly recived.

 

[kirkgas]

not trying to be funny/smart or rude, but if you dont know how to do this take someone with you who does, far better to give away half the cash and do less work for a minimal amount of stress on yourself, and it will teach you how to do it then when comfortable you can do it on your own, there are far too many things we could advise you to be careful of, but will still miss something, honestly you will end up there for 4 days instead of 2 so will only therefore technically get the same value as halving the money with a mate and your reputation wont take a pounding and hopefully your mate will call on you to assist him as a pay back on another job

 

[GQuigley67]

good advice from kirkgas, know your limits.

 

[moony]

It's not hard mate if you can change a y or s plan to a combi then this won't pose a problem.

 

[armourer]

Agreed with all of the above.

You will need a mate anyway, they weigh a ton. No fun getting them out over someones nice cream carpet.

 

[P J F PLUMBING]

plastic floor sheet dust sheet plastic dust sheet then anther dust sheet and a whole lot of humpin errrrrr

 

[GQuigley67]

plastic floor sheet dust sheet plastic dust sheet then anther dust sheet and a whole lot of humpin errrrrr

??????:ack2:

 

[stevetheplumber]

it will be dirty if possible get the carpets removed or well sheeted both cotton and poly when you cut the primaries out they will be full of very black water if your pulling the flue liner out this also generates a heap of dirt
once the fire is of you can see the boiler connections on the side of the boiler
try and get a look at the mi's for the fire to see how it comes of usually a couple of screws either in the top grill or under the bottom flap which is where youll find a small gas pipe to undo

 

[R1CKY]

Lots of dust sheets, pray that the installer fitted a drain off low enough to get all of the water out of the heat exchanger.

Once you've cut the pipework out, bung them with tissue. No matter how well you drain it, they will always spill!

Make sure there are two of you to carry it out, there is no pride to be had by struggling by yourself and potentially doing your back in.

 

[Steve @ TheHeatingHub]

you can buy sticky plastic carpet protector on a roll for the mess. As for the job as kirk said get somebody who knows, you can come unstuck with back boilers make sure you expose the pipe work that will be in the boxing in on either the left side or right side to see what is going on, you may even find a pump under the floor boards! And if possible try to pick up them primaries with you new boiler

 

[mikeygas]

Watch out for anti-grav valves!

 

[metaldust9]

as above and it might have a primatic cylinder to empty even more fun

 

[mfgs]

Anti-gravity valves. I wont get caught out by one of them again, once you've been done by one you will certainly remember the experience.

 

[GerrythePlumber]

Don't forget that once you have removed all the pipework, cylinder and storage cistern you don't need you'll have enough in scrap for a few beers to replace the sweat lost.,

 

[gasmarc]

i would not advise touching a back boiler if you dont know what you are doing ,we would do one in two days no problem ,also remember the system will be full of dirt so will need a flush out or and a magna cleaner, not to mention header tank ,also probable leaks etc etc

 

[AWheating]

plug in the wet and dry and hammer/chisel the pipes off........ job done!

 

[ricky1]

What if they still want to have a gas fire fitted?

 

[jtsplumbing]

Watch out for heating being on a one pipe system ! a lot of back boilers ran gravity hot water with a pump to run heating, these can work out to be costly jobs, so check out everything or you could come unstuck, will excisting system take mains pressure ? be carefull ! you may have to re-pipe the hole house,