Electric storage heaters are domestic heaters which store thermal energy and release it to heat your home when you need it. They are especially designed to convert cheap night time, off-peak electricity into thermal energy, store it, and then release it continuously throughout the day. This is why they are sometimes referred to as night storage heaters.
Modern high heat retention electric storage heaters are much more energy efficient than their predecessors. They have better insulation to preserve the stored heat longer and a convection facility to top up the heat required for very cold days. They have LCD displays which allow you to see heat input & output levels and intelligent control systems which learn your heating requirements.
The price of electricity supplied to our homes is much less when demand for it is lower, typically during the night time. Electric storage heaters use this cheap night time electricity to store heat and then release it to warm your home during the day time when electricity is more expensive. Energy suppliers have introduced electricity tariffs such as Economy 7 which require a special meter to track day and night use of electricity, so that it can be charged at a different rate per kilowatt hour (kWh).
Heat Storage Blocks
Old storage heaters contained very heavy, heat retaining clay bricks but modern, more energy efficient versions use a ceramic material or high density magnetite to store heat. Offering the highest density and heat storage capacity, magnetite is extremely efficient at storing thermal energy but it also relies on excellent insulation to retain the heat.
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