An economy seven direct hot water cylinder or an electric shower and a couple of instantaneous sink heaters? I find this very hard to work out.
Our hot water cylinder holds about 140 litres of water and the night time rate for electricity is 5.099p per kwh. It takes about 3 hours to heat the tank up to its thermostat setting.
A decent shower is rated at about 10kw. Two of us take 6-7 minutes each to have our showers with the water running at about 5litres per minute. The trouble is that there are two rates for daytime electricity: 18.097p for the first 225kwh in each quarter and then the rated drops to 10.572pkwh.
I'm not even sure what a kilowatt hour is and I don't even know how to start doing the calculations. If anyone could help I'd be very grateful.
We are all electric in our place.
Our hot water cylinder holds about 140 litres of water and the night time rate for electricity is 5.099p per kwh. It takes about 3 hours to heat the tank up to its thermostat setting.
A decent shower is rated at about 10kw. Two of us take 6-7 minutes each to have our showers with the water running at about 5litres per minute. The trouble is that there are two rates for daytime electricity: 18.097p for the first 225kwh in each quarter and then the rated drops to 10.572pkwh.
I'm not even sure what a kilowatt hour is and I don't even know how to start doing the calculations. If anyone could help I'd be very grateful.
We are all electric in our place.