Replacing a gas fire

SYNERGY

onemoment wrote: »

its this model here:-

w w w partsarena. com/baxi/System/DATA/Dx/DS1/installation/2161/I03-2161/I03-
2161.htm

(sorry link is that way as not allowed to post it fully as I am a new user)

the part we are told we need is the burner part number 74 in the diagram

was originaly told it was the gas valve, couldnt get that part as it was mde obsolete in 2006

was then told no its not the gas valve its the burner
at this point I am beginning to wonder if the guy knows what hes doing and by us changing all the parts eventually a cure will be found

symptoms edges of radiants not getting hot or glowing like middle section and smell of gas

I asked about the replacement fire here because I am able to get my hands on one quite easily and cheaply but am now being told that its not allowed to be installed

Just wanted to know if this guy is making this up so he can sell my parents a new system at the cost of £xxxx's

if so will get a different guy in to fit/repair

thanks in advance
M

symptoms edges of radiants not getting hot or glowing like middle section and smell of gas

Morning Onemoment.

First can I say that there should normally be no observable smells when using an open fronted, open flued gas fire, your mums.

I'll qualify that, in saying that on lighting one that hasn't been used for a while, or using radiants that haven't been used for a while, there will be a smell from burning dust on the radiants.

Also in certain adverse weather conditions and/or a poor or non existent chimney flue terminal to suit a gas fire, high winds can produce a down draught in the chimney thereby spilling combustion products into the room, rare, but not unknown.

The worrying part is that there should, however, be no smell of gas.

Can you elaborate on the above ( fire operation only )?

When you say that the whole area of the radiants are not glowing, does this apply at all fire settings, ie minimum to maximum heat settings ?

When using the fire, what is the colour of the flame at the bottom of the radiants, it should be an almost invisible blue ?

Does the flame appear yellow ?

Are there any signs of sooty deposits on the radiants ?

More importantly, are there any signs whatsoever of smells when the boiler is running ?

The brief symptoms you describe (difficult to diagnose at a distance) tend to point to, for whatever reason, either incomplete combustion of the gas supplied to the burner, or a gas leak when the fire is operating.

A gas fire/front of this era is, when all said and done, a simple component.

A gas leak when operating should be easily diagnosed by a competent gas engineer.

Poor combustion from the usual cause, burner contaminated with dust and fluff, reducing the air to the burner should also be easily diagnosed.

As others have mentioned, you can fit any gas fire to the back boiler unit, as long as it is/was was one of the options of the manufacturer.

Mr_Ted

bengasman wrote: »

Judging by that statement, you don't have the beginning of a clue how to work on a bbu yourself. How is that possible for somebody who claims to be be a RGI?
There are far more important things to do with a bbu service than taking the burner out of the fire.

That is exactly what i mean by incompetant engineers, for which if you are an RGI you should be struck OFF

Linting of burners, particulary on BBU's, and also on the fire front, which is considered an ancilliary appliance by to many, but is often the primary appliance of use in BBU's, is the very worst problem that causes bad combustion and production of carbon monoxide as it drastically affects the primary and secondary air ratio for correct combustion.

Any poor service procedure on any open flued appliance burner is and should be the primary importance as it is the source of combustion which if impaired can cause all sorts of further problems, such as vitiation or sooting of the flueways and product of combustion spillage!

Failure to properly service the burners in association with the other service procedures required, can kill people!!!!

For that disgusting statement bengasman, if i knew who you were, I would report you to GAS SAFE!

I would add to all BBU or any open flued appliance owner as a caveat that if you have animals in the house it should be particularly noted that burner care and correct appliance serviceing is of added importance as animal fur and hair will be drawn into the appliance and the burner, thereby creating poor combustion, it is critical that ALL open flued appliance should be serviced annually as a minimum, not just Safety Checked only, but fully serviced, and i would watch and pay particular attention that the burners are removed and cleaned correctly!
The burner should be cleaned by stripping if that is possible and the mesh lint arrestor cleaned, and is possible on most boiler burners, and lightly brushed and vacuumed from the air/gas inlet to the burner, not from the burner head, as vacuuming from the burner head will compact any lint under the head or any lint arrestor in the burner!
Burners that cant be disassembled, such as fire front burners, should be cleaned by the use of compressed air blown though the burner head in the reverse direction to the normal gas flow so as to not compact lint and dust under the burner head!