Not a condensing boiler. Warmflow boiler approximately 18 years old & never had a problem. I don't think it's rust as this stuff is eating a hole in the new paving after only 3 months
Hi This is what the boiler looks like when running. This video shows it after being on for a couple of hours
https://www.youtube.com/watch?v=vxEka6CxGJE
Hi Guys
Can you help me or at least point me in the right direction.
I have a problem at my own house where the flue from my oil boiler comes out the side of my built in garage.
I had 3 x 2 flags down on the outside and thought that the rust stains on the ground were coming from a metal heat...
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