A state of war only serves as an excuse for domestic tyranny.
Update: Here’s the cost comparison for natural gas water heaters
I was just perusing some of my comments in old digg posts when I came across a reply from two months ago…
Your article on your website on installing an electric tank is very useful, specifically on how to compare the cost of propane gas vs. electricity.
How do you compare cost of Natural Gas vs. electricity? In my area natural gas has skyrocketed 3 times when electricity seems to be a stable .10 to .098 per kw.
Good question, true (that’s his name)! Consider the following an addendum to my article on hot water heaters
- Natural gas water heaters are typically 83% efficient
- There’s 900 BTUs in 1 cu. ft of CNG (747@83% efficiency)
- 38.55 cu. ft. of CNG required to get a 50 gallon tank to 140 degrees (68 degrees in)
- As of this writing, CNG is about $16 per 1000 cu. ft.
- So it takes about $0.62 worth of natural gas to heat 50 gallons of water 68 degrees.
- Making natural gas slightly cheaper than electricity ($0.83) and a lot cheaper than propane ($1.08).
One Response to 'Update: Here’s the cost comparison for natural gas water heaters'
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on August 23rd, 2006 at 12:49 pm
[...] Using my previous calculations the total cost to heat of 2400 gallons of hot water is: $29.76 (Gas), $39.84 (Electric), and $51.84 (Propane). [...]