cleaning CH heat exchanger

Does anyone know where i can get (or improvise!) a tool that will get between the fins of my CH heat exchanger to clean it without damaging it? I have used a stiff brush but it is simply not effective at getting deep enough between the narrow gaps.

TIA

CG

Reply to
Cuprager
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Stiff cable tiewraps.

Reply to
Doctor Drivel

I use a lollipop stick - you can buy bags of them in craft places. Still hard work but just the right size.

Reply to
Bob Mannix

For my unlamented Potterton Envoy I used a short length of heavy grade nylon strapping.

Reply to
Tony Bryer

BES

Reply to
John Stumbles

I struggled for damn ages. Then I discovered that the crap is water soluble, when I took the heat exhanger off, and washed it in a bucket of water.

Reply to
Ian Stirling

I've tried that on mine, but the green grunge had set rock hard and was extremely hard to shift. The worst bits were removed by scraping with the end of a hacksaw blade. It was worth trying, as the other option was £300 for a new heat exchanger. It hasn't got any worse since the treatment, but time will tell (it was over 10 years worth of corrosion to remove).

Reply to
<me9

On mine, the yellow gunge was completely water soluble. I wonder what the different composition is. Pressure washer?

Reply to
Ian Stirling

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