General Information; What Are Wooden Pellets - Ravelli MIA 90 Manuel De L'utilisateur

General information

What are wood pellets?
Wood pellet is a fuel which consists of pressed wood sawdust, often obtained from scraps of carpentry. The material used cannot contain
any foreign substances such as glue, lacquer or synthetic substances.
The wood is dried and cleaned and then pressed using a perforated matrix: due to the high pressure the sawdust heats to activate the
natural binders in the wood; in this way, the pellet maintains its shape, also without adding artificial substances. The density of the wood
pellets varies based on the type of wood and it can exceed 1.5 - 2 times that of natural wood.
The cylindrical sticks have a diameter of 6mm and a variable width between 10 and 40 mm.
Their density is equal to approx. 650 kg/m
UNI EN ISO 17225-2:2014 (replacing EN PLUS) defines the quality of pellets by defining three classes: A1, A2 and B.
Pellets must be transported and stored in dry places. On contact with humidity they swell, therefore making them unusable: therefore it is
necessary to protect them from humidity both during transport and storage.
Keep the fuel and other flammable materials at an adequate distance.
Ravelli recommends using wood pellets certified class A1 and A2 according to EN ISO 17225-2:2014 (EN PLUS), or standard
DIN PLUS (more restrictive than the class A1) or STANDARD M 7135.
The pellets can be light or dark, usually packed in bags bearing the manufacturer's name,
the main features and the classification according to the standards.
How is the pellet cooker made
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1 Flue clamp
2
Pellet hopper lid
3
Ceramic-glass cooktop
4 Vermiculite
5 Grate
6
Spark plug
7 Ash drawer
User manual MIA 90
. Due to the low water content (< 10%) they feature a high energy content.
3
Length : < 40 mm
Diameter : about 6 mm
Bulk density : ≥ 600 kg/m³
Heat power : ≥ 16.5 MJ/kg (4.6 kWh/kg)
Residual humidity : < 10 %
Ash : <1.2 %
Specific weight : >1000 kg/m³
8
Oven
9 Combustion chamber door
10
Storage box
11
Vermiculite
12 Hopper
13
Smoke extractor
14 Combustion air inlet pipe
Vers. 1 du 20/10/16
EN
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