Article

2010-12-30 Britain

GREEN DISASTER: New Condensing Boilers Cant Take the Cold Thousands Freeze Up in UK

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Posted by tipper 2010-12-30 19:53|| || Front Page|| [4 views ] Top

#1 We have condensing boilers in the US, but the intake/exhaust through the wall has a coaxial configuration: The combustion air comes in through the outer part of the coaxial pipe, and the exhaust goes out the center, so that combustion air is preheated by the exhaust. This also protects a combustable wall. When you have blowing snow, additional precautions have to be taken for blockage of combustion air port.

When you have condensing combustion, you have to watch for acids forming in combustion exhaust when you condense the H20 if the exhaust is too cold. Best to keep exhaust above 250F exiting the appliance.

Same applies to heat recovery of diesel engine exhaust heat. Things get nasty at relatively low exhaust temps.

Posted by Alaska Paul 2010-12-30 20:40|| 2010-12-30 20:40|| Front Page Top

#2 Hope they have some of those new LED streetlamps so the mechanics can make it to the houses. I'm sure those lightweight electric vehicles are just the transportation to blast through the snow/iced roads. Now if you excuse me, I have to go shovel my roof so that my solar panals work.

Posted by swksvolFF 2010-12-30 21:41|| 2010-12-30 21:41|| Front Page Top

#3 Shoulda gone with the geothermal, man.

Posted by gorb 2010-12-30 23:40|| 2010-12-30 23:40|| Front Page Top

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