Kettle Boiling
Channel: NickinKernow
Date: 02/07/2012

After reading about an 'ECO' kettle, and knowing the equations that govern heating water, I decided to see what is really going on.  I used the same amount of water for each experiment, one mug full (280g), brought it to the boil by 3 different methods.  An electric kettle (2.55-3 kW), my camping stove (I have no mains gas here) which is a 70/30 Butane/Propane mix, I assume by mass, but not sure. and my old electric stove.
Had to redo things a couple of times as, as usual, things go wrong.
But from this simple and basic test these are the results:
Kettle 60 seconds, 0.04 kWh (21g of CO2)
Gas 85 seconds, 0.07 kWh (9g of CO2)
Stove (from cold) 210 seconds, 0.09 kWh (46g if CO2, at 514g/kWh grid intensity during test)
Stove (from hot) 170 seconds, 0.07 kWh (36g of CO2)