Donna Ohl, Grady Volunteer Coordinator wrote:

On Sat, 16 Feb 2008 14:14:46 -0800, Anthony Matonak wrote:

I'm only one person but I average about 5 therms a month.


Wow. 5 therms a month is extremely low, it seems to me.

The US Department of Energy assumes the "average" houshold uses a bit less
than 1/2 a therm a day *just* for the water heater alone!

43,302 kJ/day = 41,045 Btu/day = 0.4105 therm/day

That would be 15 therms a month just for hot water for the average
household in America.

FWIW, we're apparently almost exactly average.

I wonder if Europe uses the same amount?

REFERENCES:
Calculating water heater costs for meaningful comparisons
http://www.daviddarling.info/encyclo...ater_cost.html
365 × 0.4105/EF × fuel cost (therm) = estimated annual cost of operation

Review of hot water heaters
http://www.consumersearch.com/www/ho...rs/review.html
365 X 0.4105/EF X Fuel Cost (therm) = estimated annual cost of operation


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