Derek, people like You, makes KZfaq Great!

Fantastic. Another good tip for gas engineers. Thank you very much Derek. 😀👌

Brilliant video, thanks Derek👍👍👍

A cake slice also works to clean between the heat transfer coils. I personally use a garden sprayer to clean the hex's. Also if you're replace the burner gasket. It's a good idea to use this cardboard packaging to protect the rear insulation panel. Excellent tutorial Derek 👍

Thanks Derek great video 🙏👍

Brilliant vid 👌🏽👏🏽

Great video. Links would be good to the items Derek. Keep up the great videos

Great one from great person

Put a bit of pipe on the shaft (extension) to give you a non-rotating grip on the shaft.

Thanks Derek.

I tried one of those brushes - unfortunately it's impregnated with Silicon Carbide grit. Luckily I noticed it was scratching the stainless steel and promptly stopped using it. Interestingly Viessmann sell a metal brush to clean in between the coils only. I now have this tool.

Good video for new recruits and to all those who only probe. If a Manufacturer is asking you to only probe then is that correct? You still have to take the burner out to check the flame and ignition probe and check the condition of insulation so why not clean the H.E.

Another brilliant vid.. Just some links to the tools mentioned pls

Muy interesante tu vídeo donde puedo comprar el cepillo que utilizas con el taladro. Gracias un saludo desde 🇪🇦

You did a fantastic job considering you only spent a couple of minutes. Are most heat exchangers stainless steel? Also, I guess you’d refer to manufacturers instructions regardless before cleaning any heat exchanger? Thanks Derek👍🏻. Top video. Asian Jon. Training.

Thomas Bradwell Thanks Derek

Hi Derek, great video do you have a link to the brush and drill extension,or advice on where to buy them. I have searched on Google but unfortunatlt not found any

Please don’t use drill attached brushes to clean the stainless steel heat exchanger, it really gets to me and I cannot stand it, I work for a manufacturer and it says nothing about that in the MI’s so I have no idea where people are getting this from. Infact rather than cleaning the hex you are actually destroying it by removing the heat treated coating which contains chronium which is the element that stops the ferrous iron rusting through. When people do this it accelerates intergranular corrosion and the ferrous iron balls build up and the outside of the heat exchanger which have leach out of the stainless steel. Which I turn destroys the hex and turns the trap orange. Sorry about the rant.

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Great video Derek, can you do one for Worcester boiler, kebab style and other. Thanks 🙏

This only cleans the 20% you can see, it certainly looks nice afterwards but the scale will be on all exterior parts of the heat exchanger.

If the heat insulation panel is cracked or damaged is it an absolute nightmare to replace ie full heat exchanger out and everything else infront of it? Or does it just pop straight out and a new one in.

British gas have serviced my boiler for years and never done this.

Marcin Masalski 👍

Hi,Where can you get a drill extension like that please? Thanks as always

I wish more engineers would do this and not probe n go.

I find a nail brush works well.

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Where did you get the cleaning brush

Hello, I'm following you from Turkey, can you turn on the Turkish subtitle feature?

Tomkat

Should have a mask on cleaning that shxt off Derek but nice video anyway 👍

Scratching a stainless heat exchanger is bad. Will cause premature failure.