02-17-13, 05:33 PM | #1 |
frugal builder
Join Date: Feb 2009
Location: Bowen Island, BC
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Heat scavenging from condensing boiler exhaust.
Hi
Just had a 96% efficient IBC modulating condensing boiler SL-20-155 installed and was thinking if I could scavenge even more heat by using the exhaust gas to preheat the intake air. I would need a compact air to heat exchanger in tubular form. Minimum duct size is 2" I can fabricate with stainless so custom is an option. I wonder how much more I can squeeze out of it this way. Is it worth the trouble? Any thoughts? |
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