5th class pellet boiler

The pellet boiler FLAT represents the latest compact boilers. The device goes with extensive equipment. Weather-compensated automatics with Lambda probe and HT-Logic III autocontrol ensures easy and simple operation. It is equipped with a burner with automatic cleaning, a system for automatic cleaning of the exchanger, a hydraulic module and a safety group.

The boiler structure is based on a vertical flame tube heat exchanger with an automatic exchanger cleaning system. Burning is performed by a self-cleaning, automatic drop-in burner with an openable floor, equipped with an igniter, a photoelement and a thermocouple. The boiler is equipped with an exhaust fan which aerates the combustion process and improves the flue draught.

The boiler and the heating system are controlled via a 5″ touch screen, made in capacitive technology. Weather controller HT-tronic 900 Touch controls the operation of 4 pumps and a mixing valve actuator. The automatics can be expanded by connecting additional modules. The controller is compatible with a remote control panel, 2 room thermostats and an internet module. It is equipped with HT-Logic III autocontrol which controls the operation of the burner, selects the operating parameters and modulates power depending on the boiler temperature.

Operates in iPell R combustion optimisation standard with HT-tronic Lambda module. The optimisation system with a probe guarantees the highest combustion quality.

The boiler is equipped with a hydraulic module, which consists of: mixing valve with servo-motor, valve pump, DHW pump and safety group in a form of diaphragm vessel, safety valve and manometer. The boiler is protected by a return protection pump with a temperature sensor, it is adapted for fitting in a closed system in accordance with applicable legislation.

The design allows for convenient and user-friendly, hydraulic connections can be routed upwards or to the rear of the boiler, flue gas can be routed upwards, backwards or to the right side of the boiler

Rated power kW 8 11
Power range kW 2,4-8 3,6-12
% 92,6 92,9
mg/m3 18 15
Max. operating temperature oC 85 85
Water capacity L 33 33
Maximum operating pressure Bar 2 2
Min. flue draught Pa 10 12
Technological connection GZ 1 GZ 1
Flue connection mm 120 120
Boiler weight kg 236 243
Tank volume dm3 70 70
Boiler width
cm 115 115
Depth of body with high flue cm 37 37
Body height cm 130 130
Height of spigots of the hydrological system cm 114 114
Height to the flue centre (rear outlet) cm 113 113
Height of flue gas outlet upwards cm 125 125

HT-tronic 900 Touch

The extensive HT-tronic® 900 Touch automations for intuitive operation of the boiler and heating system.
  • ikona POMPA
    Boiler pump
  • ikona POMPA
    DHW pump
    Mixing valve
  • ikona TERMOSTAT
  • ikona POMPA
    Mixing valve pump
  • ikona POMPA
    CH pump
    Weather-compensated control
  • ikona HT LOGIC III
    HT Logic II
  • ikona ZAPALARKA
  • ikona alarm
    WWW module
    Colour display
    Touch screen display
HT-tronic 900 Touch

Automation extension modules

HT-tronic M-Z2
  • Valve module,
  • Valve pump,
  • Mixing valve,
  • Weather-compensated control,
  • Thermostat,
HT-tronic M-BC
  • Buffer pump,
  • Circulation pump,
HT-tronic Rooms
  • Wired remote control panel with room thermostat,
HT-tronic Rooms Wireless
  • Wireless remote control panel with room thermostat,
HT-tronic TPP
  • Room thermostat – wired,
HT-tronic TPB
  • Room thermostat, wireless with weekly programme,
HT-tronic TPB – APP
  • Room thermostat with a weekly programme – directly with a wireless APP mobile application,
HT-tronic Connect
  • Internet module – operated via a web browser and mobile application,