storage heater comparison
Comparison of heat output provided by a storage heater & panel heater combination against an HE 6060 model
Storage Heater (Using Economy 7)
The maximum heat output of a standard 2.55kW storage heater at the end of a storage period is 1kW. To maintain the heat at 1kW output, the storage heater needs topping up with an additional heater towards the end of the day using day rate electricity.
The total consumption of electricity by the storage heater operating to maintain 1kW may be calculated using Economy 7 tariffs as follows.
Storage heater: 2.55kWh for 7 hours at 4.58p per kWh = 81.75p
Direct heater: 4 kWh at 10.4p per kWh = 42p
Storage heater daily running cost = 1.24p
HE Radiator (Using Standard Rate)
The running cost for 11hrs of a 1kW HE radiator is 10.4p per hour on standard rate electricity and 4.41p per hour on Economy 10.
HE radiator standard rate: 6hrs x 10.4p = 62.4p
HE radiator Economy 10: 5hrs x 4.41p = 22.05p
HE radiator daily running cost = 85p
Against the storage heater this equates to a 31% cost saving*
Even further cost savings can be achieved also as the Heat Electric radiator does not constantly draw electricity once the desired room temperature is achieved and the radiator cycles.
Running costs estimated from a dwelling with modern levels of insulation and serve as a guideline only
Electricity tariffs (March 08) are based on and provided by British Gas Duel Fuel Tariff
* under ideal conditions 31% is an achievable saving, however due to differing heat requirements and dwelling insulation levels this figure may reduce. However a 15% saving is expected as a minimum.
