Boiler Construction - its elements

• Sealed wood gasification chamber that is simultaneously used as a loading chamber.When appropriate amount of primary air supplied by the pressure fan is delivered, wood gas is generated. A nozzle, made of refractory concrete, mixes wood gases with the secondary air and a flammable mixture is produced that undergoes self-ignition at about 1000 degrees F. Exhaust reheat space - the main combustion chamber, where temperature reaches about 2000 degrees F serves also as an ash pit. A smoke tube heat exchanger (flue gas to water) heats up the installation water. A fan that communicates with the microchip controller monitors the quality of the whole burning process.
• Safe guard thermostat - each boiler is equipped with an additional safe guard thermostat, which switches off the fan while the water gets up to 180 degrees F.
  Steel tabulators’ in heat exchanger tubes provide turbulent flue gas flow, which results in low flue temperature.

Boiler construction - materials

• Boiler body - boiler casing is made of welded metal sheets that are 1/4 inch thick
• Heat exchanger - smoke tube heat exchanger made of tube with a 2 inch diameter
• Insulation - boiler thermal insulation is composed of glass wool of Nobasil 1 inch thick, while the external casing consists of metal sheet panels 0.8mm thick (powder painted)
• Nozzle - ceramic element made of refractory concrete (working temp. up to 2100 degrees F)
• Chimney flap - made of high quality steel. Tight flap adhesion to the combustion duct assures the burning chamber tightness
• Boiler regulator - placed on upper boiler cover. The regulator is fixed to the boiler cover by spring catch
• Chimney flue - 8 or 10 inch in diameter, depending on the size of the boiler
• Ash pit - steel bottom of the burning chamber, ceramic ash pit (working temp. 2100 degrees F) and additionally covered by refractory concrete.

Boiler door - produced of high quality steel, insulated with Nobasil thermal insulation and inside covered by refractory concrete layer. Also protected with heat-resisting fiberglass cord.

EKO advantages
Orlan boilers are manufactured as: ORLAN SUPER with cooling coil and mechanical cleaning device

efficiency 91% , low service costs, easy and simple maintenance , small quantity of ash , one load lasting from 8 to 12 hours , power range from 85 kBTU up to 275 kBTU , output power modulation from 40 to 100%, adapted for closed (pressurized) system, equipped with electronic, regulator and room temperature sensor, nature friendly, made from boiler steel

Standard type boilers are equipped with RK 2001 R4E enabling:

• Interaction with circulating pump
• Interaction with room temperature sensor, installed in the room and connected with boiler regulator by two-strand wire
• Modulation of fan rotation Boiler output adapting to actual weather conditions
• Interaction with EUROSTER room thermostat
• Each boiler is able to work without room temperature sensor as well.

Boiler can be placed in the heating room, basement, or in an outside wood storage building. There should be enough space to accommodate fuel storage for the whole heating season.