-> out some CO2, but you'd either have to live with some changing heat
-> outputs, or test frequently for CH4 conc. #]:-|)#
We live with changing BTU values from load to load anyway, from LP gas.
Seldom get two loads in a row that burn the same.
I've never burnt biogas, or even tried, but I'd be surprised if it were
NOT the same way.....
 ^..^
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