prCEN/TS 18480

Gas-fired overhead luminous radiant heaters for non-domestic use. Safety and energy efficiency - Part 1: H2NG and Hydrogen – Expansion of EN 17175

Scope

Shall be according to EN 419:2019, Clause 1 [Scope] with the following addition to be inserted
after paragraph 1 of the text:
This document covers luminous radiant heaters that are intended to be connected to gas grids
including gas grids for natural gases of the 2nd gas family where up to 20 mol-% H2 is added to
natural gas (H2NG-Y20) and where the quality of the distributed gas without adding the hydrogen
is not likely to vary to a large extend over the lifetime of the appliance.
This document covers also luminous radiant heaters that are intended to be connected to
hydrogen gas grids where the quality of the distributed hydrogen gas (4th gas family at nominal
pressure of 20 mbar) is likely expected to contain ≤ 98% hydrogen and stay within a Wobbe
range of 42 – 46 MJ/m³.