This chart is to be used as a guide only, for a more accurate guide we would need more information including your actual “U” values. The table below shows which storage heater (static-auto-combined) with smart control, in KWatts is best suited for the area your looking to heat. All you need is the floor area and outside wall length to calculate size heaters.
We assume a standard ceiling height of 2,4 mtrs and the following “U” values:- ext. walls 1.50, floors 0,75, roof insulation 0,31 and glazed areas 2,90.
Over 2.6 kW and you may need two heaters. We accept no responsability for any heaters sized incorrectly while using this guide. It is the customers responsibility to confirm the “U” values are suitable for use or supply alternative values.
The table above shows recommended figures that will help to calculate the power requirement in kWatts to install Storage Heater (static-auto-combined) with Smart Control in the UK and Ireland.
To calculate the theoretical heat loss in a room it is necessary to match the room floor area with the total length of outside walls of this room. We should install the storage heater with the power immediately above the theoretical power obtained.
In bedrooms and kitchens it is possible to reduce the theoretical power required by 20%. But in the same way, all rooms located in a top floor would be recommended to increase the theoretical power by 20% too.
These figures have been developed to get a comfort temperature of 21ºC.