Heat Shield any infomation?

[thaisoon17]

I am going to replace a combi boiler in a property. The flue comes out underneath the facia and guttering about 250mm apart. This is too close but the boiler is about 15 years old so they may of got away with it then. really there's no where else to put the Flue so i thought about putting a heat shield above the flue. I have rang around about 10 different plumbing mercants near to me and all have said they dont even know what one is let alone where i can get one from. Any help Please!

 

[thaisoon17]

make your own out of ali must be a min of 1m long.

Someone said to me about using a ali back plate for a fire and just bending a lip on it to screw to the wall and facia would that be ok and legal? Thanks for the help.

 

[abbeygas]

Could the boierl not go on a vertical flue kit??? the heatsheild must be 1m long and 5 mm away from the surface above it to prevent heat transfer so the books say.

i meant boiler

 

[mcmoby69]

heat shields are not available off the shelf . they are usually bodged together by people who are not corgi registered or installers who do not obey the regs. in my opinion the installer should be removed from the register and prosecuted. there are regs for flue positions and should be followed if you cant be bothered to follow the regs you shouldnt be doing the job.move the boiler to a position where the flue conforms to the regs. charge extra! dont forget to register the new installation with corgi(compulsory) should be quite interesting that paperwork!

 

[thaisoon17]

glow worm were fine with the heat shield and the installations it does comply to regs with a heat sheild maybe you should have a look in the corgi book. Its not ideal and i would prefer not to use it but there was no other way in in this case.

 

[dam]

Im sure its 75mm!!

 

[mcmoby69]

you are right heat shields can be used, natural draught 300mm with heat shield fanned flue 75mm with heat shield. will still look like a bag of dog do tho! my apologies never had to fit one !

 

[prince-pipe]

In reality the flue temperatures from a modern condensing boiler aren't going to burn the house down- either way regs is regs and if a vertical flue cannot be used could you just not extend the flue further, clearing the soffit altogether? i know some room sealed gas fires say this could lead to draughts altering performance but has anyone any first hand experience with this being the case??

 

[Soapy]

Heat shields are 100% completely ok. Just read the MANUFACTURER'S INSTRUCTIONS to see what the spec is.

Any doubt, phone their tech helpline and ask what they want you to use.

Closure plate is ok if it's long enough, scrap aluminium is ok, as I said read the manufacturer's instructions and if they say it's ok - it's ok.

 

[Jay_1981]

are heat shields req for condensing app's given their lower exhaust temps?

 

[sonray ltd]

yep all boilers.

 

[Jay_1981]

i can understand it for nat draught but condensers, time for regs to catch up, not saying complete removal of need for heatshield but certainly a reduction in measurements

 

[leakylea]

regs may be regs but manufactures instructions are what you work to and superceed any and all regs!
Condensing boiler needing a protective plate? doubtful don.t you think

 

[stevetheplumber]

heat shields are not available off the shelf . they are usually bodged together by people who are not corgi registered or installers who do not obey the regs. in my opinion the installer should be removed from the register and prosecuted. there are regs for flue positions and should be followed if you cant be bothered to follow the regs you shouldnt be doing the job.move the boiler to a position where the flue conforms to the regs. charge extra! dont forget to register the new installation with corgi(compulsory) should be quite interesting that paperwork!

heat shields were often reccomended by manufactuers instructions any non combustable matierial to protect the soffit was acceptable guite often the soffit was asbestos covered
ive fitted many and have shown them on corgi inspections many times think your getting your wires crossed somewhere

 

[plumbnuts]

It is obviously a condensing boiler that is being installed. All you need to do is install a plume management kit which will then give the required clearances. Most boiler manufacturers make the kit.
Steve

 

[fatoftheland]

This sounds bad but Read this Twice.
Ignore the gas regulations and follow the manufactuers instructions. Corgi will tell you the same. The corgi inspector may well pull you up on it, but the above still applies and you can tell him that too!

 

[steyn11]

The heat shield consists of a stainless steel case without a bottom. Except for the openings to accommodate cable, conduit, the sensor, and a display, it is closed. Its top is furnished with slatted apertures. As soon as the case gets hot, the inside air will rise, with the hot exhaust exiting through the slats. This process will initiate natural ventilation by convection. The air stream may even have a nice side effect: Gas will be brought to the sensor faster.

 

[leethegasman]

The heat shield consists of a stainless steel case without a bottom. Except for the openings to accommodate cable, conduit, the sensor, and a display, it is closed. Its top is furnished with slatted apertures. As soon as the case gets hot, the inside air will rise, with the hot exhaust exiting through the slats. This process will initiate natural ventilation by convection. The air stream may even have a nice side effect: Gas will be brought to the sensor faster.

Confused by this post ?

 

[lame plumber]

especially as the original post is eons old and referring to a completely different topic, otherwise it made a bit of sense if your on planet zog

 

[kirkgas]

heat shields are not available off the shelf . they are usually bodged together by people who are not corgi registered or installers who do not obey the regs. in my opinion the installer should be removed from the register and prosecuted. there are regs for flue positions and should be followed if you cant be bothered to follow the regs you shouldnt be doing the job.move the boiler to a position where the flue conforms to the regs. charge extra! dont forget to register the new installation with corgi(compulsory) should be quite interesting that paperwork!

Who's rattled your cage?
A couple of things, a heat shield is perfectly acceptable ( if it is needed for the new condensing boiler)
Maybe the clearance was acceptable when fitted
Who says you need to tell CORGI anything
That will do for starters

 

[lame plumber]

heave too kirky, that was back in 2009, but I do agree with your comment even so

 

[AWheating]

i need a heat shield, my pants are on fire................................................ :toilet:, i really need to stop atin currys in the week.

 

[Ray Stafford]

Ok, got a customer who wants a heat shield for the same reason as the OP.

None of our buying team (combined experience well over 100 years), nor the F&P sales team are aware of a manufactured product - our combined wisdom can be summed up as "use a gas fire closure plate".

I know that a fabricator would knock something up, but it would be ridiculously expensive, and probably worse than working it out onsite with a closure plate.

Does anyone know of a product specifically manufactured for this purpose?

 

[lame plumber]

GAS FIRE FIXING COMPONENTS part no 6981 ali closure plate, you can mark it up and still be quids in ray or just go to a builders yard for some zinc plate, which is what I did last time I needed a heat shield, had to use an independant yard as none of the big boys carry anything usable.

 

[snowhead]

Multifunction heat shield kit,
Includes 1 (former) closure plate
plus 1 roll of self adhesive dotted lines.
And 1 roll of dots

Instructions for use;
Apply dotted lines where required.
Bend plate on dotted lines.
Place dots where required,
Drill suitable holes.