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Sport and Travel
DEFRO Komfort Eko Lux 15 kW automatic coal boiler
Description
DEFRO Komfort Eko Lux 15 kW automatic coal boiler
Central heating boiler with automatic fuel feed from a hopper and a K1Pv4 touchscreen controller. The 15 kW model uses hard coal in the 5–25 mm size range.
Explore the product in 360°
The manufacturer specifies 5 years for heat-exchanger tightness and 2 years for other components, subject to its terms. The commercial warranty shown by Hamster remains 24 months.
Heat exchanger made from certified steel.
Rated-output efficiency of 90.5% for the 15 kW model.
K1Pv4: colour touchscreen, four pumps and one mixing valve.
Closed-system installation requires the safeguards specified in the manual.
Fuel hopper pressure equalisation.
ADAPTIVE CONTROL adjusts combustion using airflow feedback.
Flue direction can be changed using an additional elbow, supplied separately.
Ceramic catalysts stabilise combustion.
Retort burner for hard coal sized 5–25 mm.
Outer doors can be rehung; internal fire doors are excluded.
Hopper lid opening sensor.
Single-piece fuel feed auger.
Gearmotor with automatic reverse when blocked; PZ version excluded.
Weather-compensated control included as standard.
Left-hand or right-hand hopper position is specified when ordering.
Controls and equipment
ADAPTIVE CONTROL and PID; control of four pumps and one mixing valve; weather-compensated operation.
Internet connectivity and room controllers are optional. Specify the left-hand or right-hand hopper position when ordering.
Construction and functions
Steel heat exchanger, retort burner, ceramic catalysts, single-piece auger and hopper pressure equalisation. A sensor monitors hopper lid opening. The gearmotor supports automatic reverse when blocked, except the PZ version. The outer doors can be rehung. A separately supplied elbow permits vertical or horizontal flue routing.
Standard equipment
K1Pv4; ADAPTIVE CONTROL; PID; levelling feet; weather-compensated control.
Optional equipment
GSM; I-1 and I-1M; internet/Wi-Fi modules; ST-292 v3, ST-292 v2, DEFRO SPK Lux and wireless SPK Lux room controllers; wireless RS communication. Accessory compatibility and availability are confirmed when ordering.
K1Pv4 controller functions
- Weekly schedule, fan and auger control
- Four pumps and one mixing valve; two additional valves via DEFRO MZ modules
- History of the last 20 alarms and temperature export to USB
- Room controller connection using RS or conventional signalling
- Remote operation through optional GSM/internet modules; support for an exhaust fan module
- Colour touchscreen with adjustable 45–105° angle
- Heating, hot-water, valve, return, flue-gas, outdoor and auger sensors; thermal protection
15 kW specifications
| Rated output | 15 kW |
|---|---|
| Fuel | Hard coal 5–25 mm |
| Output range | 4.2–15.2 kW |
| Efficiency at rated output | 90.5% |
| Efficiency at minimum output | 90.4% |
| Energy class | B |
| Fuel hopper | ~132 kg |
| Water capacity | 82 l |
| Maximum working pressure | 1.5 bar |
| Required flue draught | 16 Pa |
| Flow temperature min./max. | 70/80 °C |
| Weight, depending on equipment | 456 kg |
| Flue outlet diameter | 159 mm |
| Flue-gas temperature at rated output | 126 °C |
Hopper capacity depends on fuel density. A qualified installer must size and install the boiler according to the manual for the supplied version.
The photos and 360° view illustrate the Komfort Eko Lux range. The delivered configuration, dimensions and colour are confirmed when ordering.
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