Last edited 17 Feb 2025

Lot 20

The Lot 20 of the Ecodesign legislation came from the EU, specifically EU 2015/1188, and was introduced in various stages from around 2009 by priority though to 2019. Because of the number of different product falling under the legislation, products were grouped into lots, or product categories, Lot 20 covering standards for local space heaters using electricity, gaseous, or liquid fuels. Some of the other lots are listed below, but others also include

Lot 20 for Local room heating products ( EU 2015/1188 ) set minimum efficiency standards for local space heaters using electricity, gaseous, or liquid fuels and aimed to replace inefficient technologies with energy-efficient products to reduce energy consumption in homes and achieve carbon reduction targets. Manufacturers had tot incorporate intelligent controls in their products, such as temperature controls, timers, presence detection, adaptive start control, distance control functions, and open window detection. Non-compliant heaters could not be supplied or installed in EU member states, so led to the introduction of more energy-efficient products with intelligent controls, requiring manufacturers to increase the efficiency of their components without raising costs.

Part of the impact of this legislation was newer terminologies, for example what were called simply night storage heaters now became known as High heat retention storage heaters (HHR) because of their improved efficiency and better control of heat.

[edit] Related articles on Designing Buildings

Designing Buildings Anywhere

Get the Firefox add-on to access 20,000 definitions direct from any website

Find out more Accept cookies and
don't show me this again