Biogas Appliances
Biogas is a lean gas that can, in principle, be used like other fuel gas for household and
industrial purposes, especially for:
• Gas cookers/stoves
• Biogas lamps
• Radiant heaters
• Incubators
• Refrigerators
• Engines
Gas cookers/stoves
Biogas cookers and stoves must meet various
basic requirements:
• simple and easy operation
• versatility, e.g. for pots of various size, for
cooking and broiling
• easy to clean
• acceptable cost and easy repair
• good burning properties, i.e. stable flame,
high efficiency
• attractive appearance
Two-flame burners
A cooker is more than just a burner. It must satisfy
certain aesthetic and utility requirements, which can
vary widely from region to region. Thus, there is no
such thing as an all-round biogas burner. Most
households prefer two-flame burners. The burners
should be set initially and then fixed. Efficiency will
then remain at a high practical level. Single-flame
burners and lightweight cook-stoves tend to be
regarded as stop-gap solutions until more suitable
alternatives can be afforded.
Figure 7: Institutional burner
in a community kitchen
Photo: Krämer (TBW)
Figure 8: Lightweight and stable 2-flame biogas burners
Source: OEKOTOP
Biogas cookers require purposeful installation with adequate protection from the wind. Before
any cooker is used, the burner must be carefully adjusted, i.e.:
• for a compact, bluish flame
• the pot should be cupped by the outer cone of the flame without being touched by the
inner cone
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