Discuss Suggest gas combi boiler in the Plumbing Jobs | The Job-board area at PlumbersForums.net
Very interesting publication on aluminum vs stainless steel in boilers:
[DLMURL]http://www.weil-mclain.com/en/assets/pdf/WhitePaper_CompALSS_Final.pdf[/DLMURL]
But plumbers on forums are saying to steer clear from aluminum.
As for the dB levels - you are seriously wasting your time even giving this any thought. As already stated, a washing machine or kettle will be much noisier.
How much time do you actually spend in your kitchen with no other appliances running?
House currently live in has Ideal combi. When I`m in bed upstairs I can hear it running and it drives me nuts. Noise seems to come up through pipes.
Its not about noise in kitchen, but living room & bedroom.
That white paper doesnt say "dont buy aluminum". It provides quite in depth view on each metal and how it will affect boilers life.
Plenty of people are saying corrosion, grey goo, blocked lines.
https://www.google.co.uk/#q=stainless+steel+aluminum+heat+exchanger
Yes, aluminum does have 4.5x better thermal conductivity, but tube walls are much thicker due to fact that is not as strong as stainless steel - will crack and leak over time. On that fact, thermal cond. is equal.
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