What is a Storage Heater?

A Storage Heater is an electric heater composed of electrical heating elements surrounded by ceramic bricks, which are further surrounded by a layer of insulation, and then the heater cover. The heaters consume electricity at the cheaper off-peak night time rate to heat these ceramic bricks. They ‘store’ this heat until the following morning, when it is gradually released throughout the day.

                                          How Do Storage Heaters Work?

Storage heaters are very easy to use. All storage heaters have a switch mounted next to them on the wall. When this switch is left in the ‘On’ position, it automatically connects power to the heater at night-time. This usually happens between 11pm and 8am, and is controlled by an ESB timer.

How Do I control the level of Power Input to and Heat Output from the Heater?

Most Storage Heaters have an Input and Output knob, which are found on the top-right-hand side of the heater, oftentimes under a flap.

  • The Input knob regulates how much power is taken into the heater to be stored as heat at night-time. This knob is usually numbered between 1 & 6. The higher it is set the more electricity the heater absorbs at night, and the more heat it stores.
  • In very cold weather the Input control is usually set to its maximum 6 – thereby ensuring that the heater stores the maximum amount of heat at night-time.
  • With milder weather, a lower setting can be chosen, thereby consuming less electricity.
  • The Output button controls the rate at which the stored heat is released into a room the following day.
  • This knob is usually numbered between 1 & 6. The higher it is set, the quicker the stored heat is released from the heater.
  • Deciding what number to set the Output button at depends on your daily timetable.
  • If your home is empty during the day, in the mornings the output knob should be turned to its lowest level, i.e. at 1. This ensures that only a low level of heat is released while you are out. On your return the Output button can be turned up, allowing the stored heat to be released.
  • If however, you wish a good level of heat to be released in the morning, you should set the Output button to the maximum. The Output control should then be turned back to the lowest setting before bedtime, thus ensuring that no heat is released during night time.

What installation is involved with a Storage Heater?

Storage Heaters are wall-mounted for stability, but their weight is taken by the floor. Each Storage Heater in a property is wired independently and has its own on/off switch on the wall next to it. This independent wiring ensures that the heater only uses low-rate electricity.

What types of Storage Heaters are there?

A – Manual Storage Heater – as described above.

B - Combination Storage Heaters

These are common in living rooms, and are a combination of a storage heater and an instant heater. The storage heater part works as described above, and the extra built-in convector heater operates independently, using normal day-time rate electricity. This can be very useful during very cold spells when an extra blast of heat is required. It can also be useful when heating is not required for a full day, such as at the start or end of the heating season. With Combination Storage Heaters you will notice two switches on the wall adjacent to the heater, one switch controls the storage heater and the other switch controls the instant heater.

If you require the installation of a new storage heater or the repair of an existing storage heater call John Rogers (087) 7414362 (24hrs) - I am a fully qualified, registered Dublin based Electrician who specialises in storage heater repairs at very competitive prices.

Storage Heater

Storage Heater


Storage Heater

Storage Heater