How is it different than a storage heater?

The ZEB is an electric heat battery that stores energy, similar in principle to a storage heater. Unlike a traditional storage heater, it has smart controls that forecast how much heat to store based on the weather, your electricity tariff and your typical heating patterns. This means it can charge during the cheapest and greenest periods and then deliver heat on demand when you need it.

In practice, it operates as a straightforward, low-carbon replacement for your existing boiler.