Editing Storage heater (section)

=== High heat retention storage heaters ===
High heat retention storage heaters (HHRSH) are the newest and most advanced storage heaters on the market. High heat retention storage heaters are able to retain more heat than traditional storage heaters, with a minimum of 45% heat retention 24 hours after a full charge.<ref>{{Cite journal|date=June 2014|title=The Government's Standard Assessment Procedure for Energy Rating of Dwellings 2012 edition |url=https://www.bre.co.uk/filelibrary/SAP/2012/SAP-2012_9-92.pdf|via=BRE}}</ref> This significantly reduces the heat wasted during the day, and is achieved through improved insulation. High heat retention storage heaters also include smart controls and monitor climatic conditions to estimate future heat demand, making them much more responsive to changes in their environment than traditional storage heaters. All high heat retention storage heaters are also Lot 20<ref name=lot20>{{cite web |url=http://www.lot20.co.uk/about |title=What is Lot 20? |date=2018 | publisher=GDC Group Limited |url-status=dead |archive-url=https://web.archive.org/web/20171212152023/http://www.lot20.co.uk/about |archive-date=12 December 2017 |access-date=8 December 2021}}</ref> compliant, in line with the EcoDesign regulations which came into force on 1 January 2018.