Dictionary.com
Thesaurus.com

storage heater

British  

noun

  1. an electric device capable of accumulating and radiating heat generated by off-peak electricity

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

His electric storage heater "eats electricity like it's going out of fashion", and he watches his smart meter constantly, worried that his tariff could change at any time.

From BBC

I’ll never forget Miss Needham in my village school in Kilmacanogue, rocking on her heels, pressed up against the storage heater while her students shivered at their desks in the cold prefabricated schoolroom, tapping the same rhythm she rocked to with the bamboo switch in her hand.

From The Guardian

He “posts” important letters and bills down the back of the storage heater and radiators.

From The Guardian

"It looks more like these people have been using these hot stones as a type of storage heater so that you've got a lot of warmth coming off them."

From BBC

“They acted like a storage heater would do now,” said Jacques.

From The Guardian