This is sort of a useless chart. What you really want to know is something
like: How does the cost of 1000 BTUs compare for coal vs wood pellets? The
cost per ton and an efficiency number is meaningless.
Not totally useless but it does require a bit of further work to get
the bare info out of it. They DO give a comparison based on a common
(need I say it - basically the same with different heat) house showing
what the costs would be - which IS more "usefull" than a simple cost
If you want to directly compare the raw cost per BTU, simply make the
efficiency the same on each fuel. It is, after all - a "comparison"
Banks have done this for years. At least here in Oregon. I remember
programming that feature into savings account programs back in the
1970's. They used to let inactive accounts lay dormant for years and
years. Then the State got wise and demanded the balance be sent to
them. The bank said to hell with the state, we will take it. If the
account owner ever wanted his money back, the bank would refund it, of
course, but most owners never were found.
I have to wonder how anyone would have a positive balance on their CC.
Suppose it's possible due to overpayment and such.
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