Viewing a single comment thread. View all comments

[deleted] t1_issyi7h wrote

[deleted]

4

mycophdstudent t1_istbyez wrote

With maple firewood at $275 per cord providing 24,000,000 BTUs/cord burning at 70% efficiency, I'm paying $0.0000164 per captured BTU.

With #2 heating oil at $4 per gallon providing 138,690 BTUs/gal at 80% efficiency, I'm paying $0.0000361 per captured BTU.

80% efficient #2 heating oil priced at $0.0000361 per captured BTU costs 120% more than 70% efficient maple firewood priced at 0.0000164 per captured BTU.

Trade offs are fine with me.

8

Rita22222 t1_isvfdva wrote

Four bucks a gallon? That’s a bargain! I just paid $5.35!

3

mycophdstudent t1_isvpo0d wrote

Dang. $5.35 a gallon of #2 heating oil burning at 80% efficiency, well that's $0.0000482 per captured BTU.

2

mycophdstudent t1_istd62s wrote

Maybe I'll install a steam turbine atop my outdoor wood boiler's chimney to reclaim some of that lost energy converted to steam.

5