A day in the life of a gas engineer......

A day in the life of a gas engineer......

Old Hamworthy

Dangerous stuffPosted by Sebastian Sun, February 19, 2012 13:40:57

Client sent me this in video format..... An old Hamworthy, burning in the primary air ports....... Not good! I advised it was shut down till I arrived.

On arrival, I found nothing wrong, flue flow fine, gas rate, burner pressure, slow start rate, ventilation, heat exchanger, all fine.........

Unfortunately, if I couldnt find the problem the boiler would have to be left off - burning in the primary ports produces huge amounts of CO................ so what to do?

Looking at it from first principals the speed of the gas flow through the burners would have to be below 36m/s to burn back into the primary ports. Even under slow start this wasnt happening......

I questioned the client, and he mentioned the timer 'chattered' as it fired the boiler.......

I set the timer to start in 5 minutes and waited...........

As the timer activated the boiler, it chattered...... pulsing the gas valve on/off....... and hey presto, the flames jumped back into the primary port........

Never seen that before!

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Gas leak.......

CommentsPosted by Sebastian Thu, February 02, 2012 19:27:16
I was called to a reported smell of gas...... in a commercial kitchen ....... worst place to look for one...... after about 30 minutes I had drawn a blank.... and could smell nothing...... tightness test gave no drop........ sooooo........ what next? leaking service main perhaps?...... Then suddenly I got a whiff of gas......... not much but some.... and there was no gas pipe in that area...... ! what to do?....... Then i realised it wasnt natural gas I could smell..... it was LPG........ a quick root around produced this...... leaking at the valve!

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Gas engineer stars in the 'case of the missing tool'

TechnicalPosted by Sebastian Fri, December 30, 2011 16:38:27

On arrival at a service call the client informed me his boiler smelt funny when run......... yeah, we all know this one..... and its not often good.......... choked heat exchanger, overheating......... something nasty anyway.....

I checked it over visualy to begin with.... all seemed ok........ burner pressure ok, not overheating, flame picture good, FGA readings excellent , heat exchanger clear....... flue ok.......

But it certainly did smell..........

i was about to start checking the electrics when I found this.....

3 years they had been in here.........

The tool in question is the guy that left them in here!

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you should do as I say!

Constructive critisismPosted by Sebastian Thu, December 01, 2011 21:55:32

got a call today....... help! hot water failed! .......... hotel full of guests.......heeeeellllllllpppppp!

no problem thinks I........ I know the boiler, it has a FSI (full surface ignitor)....... common fault........ fitted 3 to this boiler already....... prepared them last time by explaining how hard they are to get these days....... so always pre order......... have one in the office ready...........

I arrived and confidently requested the part and was handed a box........

lovely job.....

tootled into boiler room and stripped the boiler......

reached up for the box and froze......... uh oh

ENOUGH SAID!!!!!!!!!!!!!!!!!!!

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sometimes its the simplest things....

My servicesPosted by Sebastian Thu, December 01, 2011 21:41:51

I arrived to service a boiler ...... As always I asked 'hows it been behaving?'......... the response was somewhat negative....... the impression i got was it was a little cold..........

the boiler seemed to run fine, and all checked out.......... gas rate ok, co/co2 ok, flow good, temperatures good, .............. no funny noises........

i checked the rads and flow was good and all were heating well......

I followed up my 'behaving?' question with a few more - what / when /how......... but the consensus seemed to be 'cold all the bloody time'...........

hmmmmmmmmm

clicked the room stat up and down a few times while considering the situation.............

and looked down........

look closely

errrrrrrrr............. thats not a room stat! its a frost stat! temperature range -15 degrees C to +10 degrees C................

that will be the problem then!

However, its been in 5 years ! and serviced every year! how did no one notice? and who was the retard engineer who thought a frost stat would be ok as a room stat?

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laughing dave at the notting hill carnival........

CommentsPosted by Sebastian Fri, September 16, 2011 23:18:12
My best friend....... the only guy i know who would actualy die of a hole in the wallet........ but still the most honest and decent man i know.... laughing dave at 'carnivale' ........ we got there by boat..... and we could feel the music 1/4 of a mile away...... if i wear this hat i ,look like a cheap version of brad pit from snatch. not the look a serious plumber should sport.

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Fame and stuff...... just done DIY SOS in Dolgarrog....... will be on TV soon....ps - im am so un photogenic!!!

CommentsPosted by Sebastian Fri, September 16, 2011 22:04:17
so....... 70 tradesmen, camera crew....... small house...... eeeeerrrrrrrrrrrrrrrr lets say health and safety was a matter of chance......... lovely bunch of chaps tho...... PS - if ever you get a chance to do one of these , do, the food supplied is wonderful!

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Keston flue tube - attempt 3!

Dangerous stuffPosted by Sebastian Fri, September 16, 2011 21:45:27
As per my previous posts - c55 / c45 / c40 flue tubes were degrading - the corrugated version split and the modified rubber version degraded..... this new one looks the absolute business. I think this will be 'problem solved' mind u, I said that last time too!

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ARRRRR..... they dont build 'em like this anymore.....

TechnicalPosted by Sebastian Mon, June 20, 2011 18:09:28

just fitted this, got it flat packed from B&Q..... bit tricky to get it up the stairs but I managed....... No, in all seriousness, this is a slate water tank, about a century old, still in use. Think about it - we have all seen the simpsons episode where they dont let the baby drink out of plastic containers... (it gets into the food or something), and have you ever tasted coke from a glass bottle? (Mmmm) Water tanks are plastic... often not great quality plastic either. This thing is never going to leach toxins into the water. This little treasure will last another 100 years, barring an earthquake, or the joists rotting underneath it, Also, its 100% natural, 100% recyclable... carbon neutral......... wonderful. As i have always said, better to make it to last, than to make 10!

If you would like one in your house, you cant have one, B&Q dont stock this model anymore.

(if anyone from B&Q is reading this, dont take offence, your my favorite DIY superstore, as multiple references on this site will show.............)

ps . As ive got you here now, (Mr B&Q) please can I have a better credit limit on my trade card?

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Electrical issues

Dangerous stuffPosted by Sebastian Thu, June 16, 2011 21:22:32

If you dont tighten your electrical connections properly, this happens.... you must use a professional engineer....

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