Boiler smoke very black

sanbrafyffe

Gents

I gave my boiler a good servicing the other day.


I litterally took out everything such as the baffle plates and took a lot of dirt out from the inside.

I took off the flu and cleaned it
I cleaned the condensate trap
I changed the jet
I cleaned electrodes , photocell etc
Capacitor on pump was gone and changed that.
Tbh she is firing like a dream
She fires on Kerosene

When she fires and after a small bit the white smoke will appear in a nice quantity..
I hace just noticed a wall not too far from the flue exit now is black

I totally undrtstand its not going to be clean but why is it so smoky.


What is caising this.
Im wondering is there a combustion issue and would the air intake setting be wrong

Any help will be apreciated

Brian

sanbrafyffe

Lads

Here is a brief pic and you can see the wall darker

Cheers

jimf

without the proper equipment you cannot service a boiler properly yourself

combustion is out and could be producing dangerous levels of co get somebody with the proper know how and equipment

sanbrafyffe

jimf wrote: »

without the proper equipment you cannot service a boiler properly yourself

combustion is out and could be producing dangerous levels of co get somebody with the proper know how and equipment

Jim

Thanks for that but i served my time as an industrial plumber 20 years ago.
I left plumbing for years so im a bit rusty
I will not pay anyone

Cheers
Brian

jimf

understand where your coming from brian

but this is an open forum the advise we can give is limited

theres no doubt the combustion is out on your boiler underaired will cause it but if you over compensate on the air damper overairing can cause dangerous levels of co

as for smoke from your boiler there should be zero

sorry but I cant advise any further without overstepping the mark as safety is no1 imho

Pkiernan

The black spot is unburned/improperly burned fuel.

Likely related to the jet (all else bring equal).

If the black marks errant there before, then its likely that you've induced the problem.

I'd be getting someone in to perform the service and check the emissions.
Best of luck.

DGOBS

Thanks for that but i served my time as an industrial plumber 20 years ago.
I left plumbing for years so im a bit rusty
I will not pay anyone

Brian, if you don't think it's worth paying anyone (as a time served plumber) you should realise the 'cost' of having the right tools.

So to do this yourself, you will need:
a) a smoke pump
b) a pressure gauge
c) a flue gas analyser

HES are a really good supplier, roughly €1.2k should cover it, oh, and the FGA needs yearly calibration (aprox. €150 year on year)

Oh and BTW, the flue isn't directed as per the manufacturer, and the terminal being at low level requires a flue guard.

Tbh she is firing like a dream

I sincerely doubt that.