The VULCAN 30 S type compact, automatic, 31 kW capacity hot water heating appliance, developed and manufactured by MBH Hungarian Biomass Recycling Co. has been developed specifically by taking into account the requirements of users with smaller output requirement (below 30 kW).
The equipment has its own pellet container of approx. 150 kg capacity providing a self-sustained operating time of approx. 2 days (for a 300 m2 building with average heat insulation) and 1 week (for a building of (100 m2 with average heat insulation) at partial load. Thanks to this feature no pellet container and screw conveyor installed beside the equipment is required therefore this design saves not only space but energy as well.
The boiler is equipped with a self-developed burner that has automatic cleaning; thanks to this feature it is excellent also for incinerating pellets with higher ash content. It is possible to select 4 different pellet qualities to provide the highest comfort grade and autonomy.
The equipment has an integrated heat exchanger cleaner which significantly contributes to continuously maintaining high efficiency and comfortable maintenance.
An additional comfort feature for the operator is the tilting frame ash-box design. Thanks to it the large ash-box can easily be separated from the boiler and can be easily emptied without opening the boiler doors involving dusting out.
The automatic device of the boiler adjusts the burner in 5 output stages from ignition to stopping. Thanks to this feature the equipment is always operating at the required output. The control provides both automatic (controlled even by room thermostat) and manual mode; in automatic mode the equipment modifies output by maintaining the set forward water temperature (at 55-85 °C) while in manual mode the boiler is operating with the set output level.
Room thermostat can be connected to the equipment. Using it the equipment can be operated with time and temperature programs.
Technical parameters of the boiler:
• nominal capacity: 31 kW
• minimum capacity: 9 kW
• maximum temperature that can be set: 85°C
• maximum permitted operating pressure: 2,5 bar
• pellet storage capacity: 150 kg
• efficiency: > 91%
• pellet consumption at maximum load: 6,4 kg/h
• pellet consumption at minimum load: 1,9 kg/h
• self-sustained uptime at maximum load: 23 hour
• self-sustained uptime at minimum load: 79 hour
• flue pipe diameter: 80 mm
• height: 1.736 mm
• width: 910 mm
• depth: 655 mm
VULCAN 30 S schematic drawing