TKK3 is an integrated set that consists of a three pass solid fuel boiler TKK3 70 or 90 KW, wood pellet burner (attached to the boiler) BIOTERMEC 100 and a standard 120kg pellet storage.
Bigger pellet storage is possible on demand (extra cost).

Additional parts include: safety thermostate for circulation pump, thermometer, ash tray and cleaning kit.

Wood pellet burner BIOTERMEC 100.

Pellet burner consists of a burner body (which is to be mounted on the lower boiler door) and a screw-feeding system (which is put in the pellet stock beside the boiler). Flexible plastic tube is used to connect the two parts.

The control panel of the burner is on the front side of the burner body. Burner works automatically and can be programmed for each day in a week separately.

Unlike other products on the (Serbian) market, BIOTERMEC pellet burner has two feeders (controlled by two different motors). One is the main feeder that transports pellets to the burner body from the pellet storage. The other lies inside the burner and facilitates pellet feedind process to the boiler. It also acts as a protection from backfire.

BIOTERMEC 100 also has an automatic scrap tool for mechanical cleaning of the burner tube.

Overall power (KW) 70 90
Necessary draught (mbar) 0,38 0,47
Water content (lit) 155 178
Exit flue gas temperature (˚C) 150 150
Heating chamber volume (dm³) 200 230
Electrical network (V/Hz) 220 V 50 Hz 220 V 50 Hz
IP protection level 30 30
Temperature range (˚C) 60-90 60-90
Min working temperature (°C) 60 60
Fuel requirements caloric power > 18 MJ/kg, diameter 6-8 mm, length 35 mm, maximum humidity 8%
Upper door dimensions (mm) 350×250 350×250
Olower door dimensions (mm) 350×345 350×345
Max working pressure (bar) 3 bar 3 bar
Efficiency 90% 90%