Specifications for dedicated liquefied petroleum gas appliances - Flueless non-domestic space heaters not exceeding 10 kW; German version EN 461:1999 + A1:2004
The change A1 of EN 461 concerns several technical amendments due to need for regulation appearing after ratification of the standard. The standard itself defines the safety characteristics, the test methods and the marking of small non-domestic flueless space heaters, including difussive catalytic combustion heaters, and greenhouse heaters, not exceeding 10 kW rated heat input burning 3rd family gas," referred to in the body of the text as ""appliances"".#",,#