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Piwoslaw · 10-04-11, 01:09 PM

Thanks S-F

I was starting to see potential problems with just boxing in the combustion chamber. For example, a fan would be needed to keep the fresh air flowing in, but it would have to compensate for different burner flame sizes (my boiler's burner adjusts the flame between 11-23kW) - too much air with a small flame could be wasteful and/or dangerous.

Replacing the innards with those from a closed chamber model probably wouldn't be cheaper than buying a new boiler.

So a pipe that ends right under the boiler it will be. But the damper which closes only when the flame is off should be OK?

10-04-11, 01:09 PM	#24
Piwoslaw Super Moderator Join Date: May 2009 Location: Warsaw, Poland Posts: 961 Thanks: 188 Thanked 110 Times in 86 Posts	Thanks S-F I was starting to see potential problems with just boxing in the combustion chamber. For example, a fan would be needed to keep the fresh air flowing in, but it would have to compensate for different burner flame sizes (my boiler's burner adjusts the flame between 11-23kW) - too much air with a small flame could be wasteful and/or dangerous. Replacing the innards with those from a closed chamber model probably wouldn't be cheaper than buying a new boiler. So a pipe that ends right under the boiler it will be. But the damper which closes only when the flame is off should be OK? __________________ Ecorenovation - the bottomless piggy bank that tries to tame the energy hog.