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ErP Directive for Radiant
heaters 2018

With the new ErP Directive For Radiant Heaters 2018 looming, we have compiled a series of helpful questions that will help you understand what the new ERP directive is, and how it will affect warm air heaters in 2018 and beyond.  Be sure to look for ErP logos on all compliant product brochures from 2018.
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What is the ErP 2018 directive for Radiant heaters?
The Energy Related Product Directive 2009/125/EC (ErP for short) is a European Council Regulation which implements a series of measures for reducing greenhouse gas emissions. Warm air heaters are covered by the scope of Lot 21 of the Directive. Both radiant tube and radiant plaque gas fired heaters are covered by the scope of Lot 20 of the Directive.

Does it affect the heaters I purchase, install or specify?

Yes, where those heaters are specifically applied to provide thermal comfort for human beings.

Are there applications where the ErP Directive for Radiant Heaters 2018 does not apply?

Yes, if the heaters are used for the applications below, technically the ErP regulations do not apply. However installers, specifiers and end users should consider the benefits of applying compliant heaters as they may well offer benefits.

The applications where ErP Directive for Radiant Heaters 2018 doesn’t apply are:

  • Door curtains
  • Agricultural heating
    (ie poultry houses)
  • Horticultural heating
    (ie glasshouses)
  • Process heaters/dryers
  • Frost protection of perishable
  • External radiant heaters


Does the regulation apply to gas fired radiant tube and gas fired radiant plaque heaters?

Yes, both are covered within the Directive, additionally in respect of radiant tube heaters ‘U’ tube, linear, continuous and herringbone type configurations are all included

Does the regulation cover gas and LPG?


What does the Erp Directive For Radiant Heaters require?

The implementation and requirements of the Directive in respect of both gas fired radiant tube and gas fired radiant plaque heaters become effective as from:-

1st January 2018;

  • From this date all gas fired radiant tube and gas fired radiant plaque heaters which are used to provide thermal comfort for human beings must achieve a seasonal efficiency of more than:-

    For gas fired radiant tube heaters  = 72%
    For gas fired radiant plaque heaters  =  85%

Additionally, NOx emissions must not exceed:-

  • For gas fired radiant tube and plaque heaters 200 mg/kWh

What do you mean by seasonal efficiency?

The seasonal efficiency calculation required under the Directive takes into account  the thermal efficiency, radiant efficiency and electrical power consumption.

Why does the efficiency threshold seem lower than those currently achieved?

 This is because the European Council have chosen to use gross calorific values  rather than the nett calorific values that are currently used to determine thermal  efficiency.

So are the heaters just as efficient as they used to be?

Yes, and in most cases more so.

How will the heaters change on the 1st January 2018?

In the short term the heater products that are familiar to you will remain largely  unchanged. The key differences are as follows:-
If heaters are to be used for providing comfort for human beings then from 1st January 2018 both suspended and cabinet heaters will be configured to either operate with modulating or high/low output as standard.
If heaters are to be used in ‘non-comfort’ heating applications (see question 4) then it may be possible to specify product in on/off configuration where such formats are available.







Information for the ErP directive for Warm air heaters is also available on our website.
click here
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Related pages
Energy efficiency
EU energy performance directive
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