DIN 18890:1971-09

1 Scope
2 Definition
      2.1 Burn-up
      2.2 Flue gas
      2.3 Start-up flap and slide
      2.4 Steady-state condition
      2.5 Loading
      2.6 Fuel selectors
      2.7 Slow-combustion capability
      2.8 Slow-combustion stove
      2.9 Damper flap and slide
      2.10 Charging space
      2.11 Basic firebed
      2.12 Heating surface
      2.13 Heating gases
      2.14 Heat output
      2.15 Automatically regulated stove
      2.16 Regulating element
      2.17 Efficiency
3 Requirements
      3.1 Output levels
      3.2 Materials and wall thicknesses
      3.3 Regulating elements
      3.4 Fuel selectors
      3.5 Start-up flaps and slides
      3.6 Grate
      3.7 Charging opening
      3.8 Flueways
      3.9 Flue adapters
      3.10 Damper flaps and slides
      3.11 Ashpan
      3.12 Operating knobs
      3.13 Floor and screen temperatures
      3.14 Overload capacity
      3.15 Rated heat output
      3.16 Efficiency
      3.17 Flue gas temperature
      3.18 Slow-combustion capability
      3.19 Safety against CO accidents
4 Installation and operating instruction, instructions
      on the stove, marking by rating plate
5 Testing
      5.1 Testing centres
      5.2 Types of tests and test documents
      5.3 Testing outfits
      5.4 Test fuels
      5.5 Preliminary testing
      5.6 Testing of construction
      5.7 Thermal testing
      5.8 Evaluation of measurements
      5.9 Test report
6 Standards and regulations

Applies to slow-combustion stoves for solid fuels, and covers stoves of both the iron type and the ceramic type with iron interior (hereinafter referred to for short as 'stoves').