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philippe_gw

How to compare propane to Natural Gas

philippe
21 years ago

HELP - I think I'm doing something wrong:

I'm trying to compare NG and propane costs, not sure if I'm getting it right. (trying to decide on paypack of NG conversion for my grill - ignoring hassle factors).

Here is what I came up with and I'm asking if someone who is confident can correct me or validate me:

One 20lb standard LP tank holds about 430,000 btu/hr of fuel.

One therm of Natural Gas is 100,000 btu/hr

Since it costs me aproximately $9-10 per tank, this means I'm paying a bit over $2 per 100,000btu/hr.

My gas bill says a therm is costing me about $0.40. So that would be about $0.40 per 100,000btu/hr. That means that the lp gas is costing me more than 5x NG. Even during the worse pricing ever 2 winters ago - the NG was $0.85/therm. This would have implied still almost 1/3 the price.

HELP - I think I might be doing something wrong. I've heard NG should be about 1/2 the price of LP. Can someone either validate my analysis or correct me?

thanks, philippe

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