Check out @DaveHedgehog_’s Tweet: https://twitter.com/DaveHedgehog_/status/1121468053894696960?s=09
As the file is too big to upload, I've posted it on Twitter.
Noise is a lot louder than in the video (ignore the pressure, took this video a few...
I have probably one of the worst boilers you could have (not my fault, blame the home developer!)
It's a Ferroli Optimax...
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