Boulter Economy 50/70 Worn Baffles , Loud Drone ?

[SJP17]

Hi , after noticing that my boiler was making a louder than usual droning noise while running , i first replaced the nozzle - no difference , then i decided to remove the top from the heat exchanger and cleaned the inside , there was loads of soot build up which i cleaned and hoovered, after removing the baffles i found that the bottom one was very warped , the middle and top ones were a bit bent but not so severe as the bottom , so could this be the cause of the droning noise ?

i also noticed there is no insulation on top of the heat exchanger should it be there ?

 

[SJP17]

Any ideas folks ?

 

[oilhead]

Overfiring,

 

[SJP17]

Overfiring,

Thanks for replying could you explain a bit more what would cause this



Cheers


Stuart

 

[Burnerman]

The drone is more likely to be coming from the motor bearings, I reckon.....burnt baffles are the result of overfiring - in a nutshell the burner flame is too large due to incorrect adjustments concerning oil pressure and air admittance.
John

 

[SJP17]

Oil/air pressure is something i need to check , the last guy that looked at it said the settings were fine but he was a bit of a rogue so i have my doubts whether he ever actually checked it , the guy at the local plumbing shop said over time the baffles will get a bit warped but settings definetly need checking , are these bearings usually replaceable ? im just thinking maybe i never explained the noise i can hear properly but im not thinking it sounds like bearings , its more like a louder than usual roar from the burner , drone is probably not the right way to describe it

 

[dcawkwell]

Oil/air pressure is something i need to check , the last guy that looked at it said the settings were fine but he was a bit of a rogue so i have my doubts whether he ever actually checked it , the guy at the local plumbing shop said over time the baffles will get a bit warped but settings definetly need checking , are these bearings usually replaceable ? im just thinking maybe i never explained the noise i can hear properly but im not thinking it sounds like bearings , its more like a louder than usual roar from the burner , drone is probably not the right way to describe it

Too much air getting in there.
Air settings or combustion chamber seals.

 

[SJP17]

Where would the seals be , top of the heat exchanger and also where the burner is located ?

How could i check the air settings ?


Thanks for your help much appreciated

 

[SJP17]

Hi , ive just been doing a bit of research and after checking some pictures online ive noticed that my rogue heating engineer has altered the fuel air mixture , i was watching him at the time and he said he was bleeding air from the fuel line , but at the time i noticed he wasnt using the normal bleed screw , when i commented he mumbled something about it being the second bleeding point , im starting to realise this guy didnt have a scooby !

picture is not my boiler but the same burner and oil pump

Untitled

• SJP17
• 29 Oct 2012
• 1

 

[Agile]

The problem as I see it is that you seem to think that you can adjust your boiler yourself without checking anything!

Normally you would have a pressure gauge to adjust the oil pressure.

Then you would use a gas analyser to adjust the fuel/air mix! Thats very important to aid efficiency and prevent sooting.

I am very surprised if you have a rogue engineer in such a small place as Shetland! Their reputation would precede them!

Tony

 

[SJP17]

Yes i understand the adjustments are needed and im planning to get a good heating engineer to check oil pressure and do a gas test , ive not adjusted anything myself all ive done is a clean out and replaced a nozzle, im just doing a bit of research to find out more about the boiler , in time i will be doing the some of the service work myself.

as for the rogue engineer , there are quite a lot of new tradesmen on the scene as we seem to be getting an influx of people moving here to get away from the rat race so to speak , so i got him from an add on a local forum but i guess next time ill get a recommendation from someone local.

 

[Agile]

You live in a small community where people still know and speak to their neighbours!

Ask them!

 

[SJP17]

Whats your problem with me ?

 

[Burnerman]

You can buy pressure gauges cheaply from the likes of Heating parts Specialists....£25 or so.
The flue gas analyser is a different kettle of fish though, but maybe the air door setting (other side of the burner) hasn't been altered?
John

 

[SJP17]

Thanks for your help John , is the fuel pressure only adjusted by the screw above where you would fit a pressure gauge ?

Im just waiting to hear back regarding a price for the new baffles then ill be arranging a engineer to do the gas test and a check over, but in the mean time i might borrow a gauge and check what the fuel pressure is set to,

I also have a worcester danesmoor 15/19 in the shed , im just wondering if that baffles might fit


Cheers

Stuart