Gas boiler flue regs

Effects · 16-07-2018 12:01pm #1

I'm trying to find some regs regarding flue pipes and haven't been able to come up with anything.

Currently the flue pipe from our combi boiler extends from the side of our house into a public laneway.
It extends 135mm from the brickwork without the end cap, 230mm with the end cap. There isn't a terminal guard on the end of it.

I'm trying to find out what the minimum distance the flue can project from the house, and if the flue pipe can be cut to the correct length. The entire flue length is 765mm from where it enters a right angle bend on the boiler.
The borehole through the wall also hasn't been sealed at all. This left us with a potentially dangerous situation a few weeks ago where a passing scumbag pulled the flue out of the wall with ease.

My father in law was talking to a local plumber a while ago who was passing and he said it projected too far and also needed a terminal guard to conform with regs.

The builders aren't being much help and have already left us with a lot of bad workmanship that we are having to rectify ourselves.

Any advice is much appreciated.

Dtp1979 · 16-07-2018 12:50pm

Could you post a pic? Regs state that the flue should be cemented in to the wall. It’s one of the first things I check on a Service. As you said yourself, very potentially dangerous

Effects · 16-07-2018 1:03pm

Effects · 16-07-2018 1:06pm

Dtp1979 wrote: »

Regs state that the flue should be cemented in to the wall.

Thanks for the reply. Where can I find those details on the regs?

Dtp1979 · 16-07-2018 1:09pm

Effects wrote: »

Thanks for the reply. Where can I find those details on the regs?

That’s a shocking installation. Yes that ring should be just inside the wall. The flue looks to be falling the wrong way too. This MUST be corrected by an Rgi only. If you refitted the flue yourself there’s a chance the seal could be damaged. The flue needs to be cut, cemented and most importantly a flue has analyser used to test the fumes.

Effects · 16-07-2018 1:24pm

Are there specific regs regarding how far out it should come? Do the regs state whether it needs a terminal guard or is that optional?
Currently our builder says there's nothing wrong with it and wan't do anything about it.
We still have retention so I might need to get another plumber to carry out the work and retain the cost from final payment to builder.

Dtp1979 · 16-07-2018 3:02pm

Effects wrote: »

Are there specific regs regarding how far out it should come? Do the regs state whether it needs a terminal guard or is that optional?
Currently our builder says there's nothing wrong with it and wan't do anything about it.
We still have retention so I might need to get another plumber to carry out the work and retain the cost from final payment to builder.

Your builder is wrong. Manufacturers instructions will show it should be shorter. If the flue is lower than 2m then it needs a terminal. But it must be cemented into the wall. That’s critical. What area are you based?

Effects · 16-07-2018 5:12pm

The flue is 173cm from ground to centre of flue so below 2m.

Dtp1979 · 16-07-2018 5:38pm

Effects wrote: »

The flue is 173cm from ground to centre of flue so below 2m.

Then there should be a cage around the terminal too. Get an Rgi that you know and trust to do an Annex E inspection. And point out the flue to him/her.