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RECOMMENDED FUEL
Suitable as fuel for the heating system HDG Compact 25 - 80 are
wood chips, shavings and wood pellets. In order to uphold the emis-
sion values specified in the First Ordinance on the Implementation of
the Federal Immission Control Act (1. BImSchV), all fuel requirements,
e.g. size, water content, ash content, must be fulfilled.
W
OOD CHIPS HDG Bavaria recommends wood chips with particle size P31.5. The
fuel should have as little water content as possible, with a 20% water
content (M20) being ideal. The drier the fuel, the higher the thermal
value and the better the burning that is achieved. High quality fuel
aids in energy conservation and maintains the operating safety of
your heating system. The optimal ash content is 1% by weight (A1.0).
For HDG Compact 45/50/65/80 heating systems, it is possible to use
wood fuel products of grain size P45 with a maximum water content
of up to 25% (M25). However, reduced nominal thermal power, re-
duced efficiency, increased fuel consumption and greater wear and
tear on the heating system may then result. Fuels with a higher water
content are not suitable for burning. The maximum permissible ash
content is 1.5 % by weight. (A1.5).
W
OOD PELLETS For operation of the heating system with wood pellets, HDG Bavaria
recommends wood pellets from category A1 according to DIN EN
14961-2 or, alternatively, with the certificate "ENplus" or "DINplus".
Boiler Particle size Water content Ash content
HDG Compact 25/35 P31.5 M20 (20%) A1.0 (1% by weight)
HDG Compact 45/50/65/
80
P45 M25 (25%) A1.5 (1.5% by weight)
Table 3/6 - Maximum particle size, water content and ash content
Pay particular attention to the fuel quality, both when ordering and
during the delivery.
Important!
If there is a significant change of fuel, the system must be reset ac-
cordingly and checked for emissions by authorised specialists.
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