Similar to Economy 7 this is designed to be used with high thermal mass heating such as storage heaters, underfloor heating, and is also used with electrical boilers driving radiators or water-based heat stores.
This tariff type is comparable to Economy 7 and is intended for use in conjunction with high-thermal-mass heating systems like storage heaters, underfloor heating, and can also be used with electric boilers that drive radiators or water-based heat stores.