Our last bill was $AU 2.70/ day. for 3 people. total greenhouse gas emissions (this account) 2.59 tonnes.
Quote:I have the thermostat on the water heater set at the lowest setting that doesn't require any cold water to make it useable
b/fly I am not sure you are actually doing yourself or (the world) any favours.
To prevent the formation of ?'Legionella pneumophila' bacteria (which cause Legionnaires' disease) the ?'WA Code of Practice - Legionnaires Disease' recommends that hot water temperatures be set to at least 60 degrees centigrade (140 degree Fahrenheit.)
Reducing the temp to "as low as possible" means you use more water that has been heated. I found we (3) used a full tank of hot water when set to 50c. Therefore the water heater had to heat 315L to 50C. If set at a higher temp we used less hot water.
I wonder what some of our science and math gurus would have to say.