kmw zębiec kocioł

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Popular boiler for fine coal

KMW from ZGM ZĘBIEC SA is an upper combustion heating unit which uses fine coal as fuel. If necessary, it will use hard coal or wood logs. The boiler is perfect for residential and utility buildings, commercial spaces and garages.

Easy stoking

The large stoking door ensures easy replenishment of fuel, and the sizeable combustion chamber will hold fuel for at least 20 hours of heating. Such a duration of sustained burning is achieved by the use of a large enough combustion chamber, an efficient heat exchanger, and a controller which ensures steady burning.

Safe operation

The operation of the boiler is supervised by safety devices and sensors which react in due time and signal failures or threats. As standard, the KMW boiler is fitted with water and exhaust temperature sensors. All of these features contribute to thermal efficiency and safe operation of the unit.

Efficient combustion

Fine coal KMW boilers are efficient and popular heating units which work in thousands of Polish homes. This model features modern solutions which increase its heat efficiency. In the basic configuration, the unit is fitted with a fan blower and a controller, which maintains the temperature of the water in the boiler jacket. The multi-point air supply system ensures uniform and sustained burning, so the unit works longer and more efficiently, and the fuel does not need to be replenished frequently. The exchanger is made of certified boiler plates and insulated with mineral wool, which minimises heat loss even better.

Easy to use

Fine coal heating boilers from ZGM ZĘBIEC SA are valued for their high combustion efficiency, thermal efficiency and convenience of use. Easy cleaning and maintenance are its advantages, too, making KMW boilers perfect heating units for all of those who appreciate convenience of use.

Large combustion chamber.

High combustion efficiency, up to 82%.

Certified boiler plates P265GH.

Sensors and systems: leaving water temperature sensor, flue gas temperature sensor, boiler water mechanical temperature limiter (STB), boiler water temperature sensor.

Electronic controller managing the operation of:
– central heating pump,
– domestic hot water pump,
– fan blower.

24-month warranty for leak tightness of the water jacket.

24-month warranty for service life and efficient operation.

12-month warranty for exhaust temperature sensor.

miał piec
drewno paliwo
Fine coal Hard coal Wood

ST-81zPID controller

The ST-81zPID controller is in charge of a continuous regulation of the air inflow, and the control of the central heating and utility water pumps.
It is fitted with boiler temperature and exhaust gas sensors. It is made from high quality materials, which are resistant to high and low temperatures.

Operation and Maintenance Manual for KMW KMW 16 – product fiche KMW 30 – product fiche
KMW 30 – etykieta energetyczna

kmw zębiec

BOILER Height Width Depth A B C Flue Burning chamber Charging hole F G
D E Hi Wi De Wi Hi
KMW 16 1095 398 709 246 997 1155 170 170 377 224 397 212 167 178 412
KMW 23 1266 522 900 261 1135 1324 170 170 376 348 397 312 243 198 563
KMW 30 1438 530 850 93 1219 1428 170 170 409 346 500 312 243 207 583
L.p. Detailed data UOM Boiler size
KMW 16 KMW 23 KMW 30
1 Rated thermal output kW 16 23 30
2 Operating range kW 5÷16 8÷23 10÷30
3 Standard fuel fine coal
4 Charge capacity of the burning chamber dm3 38 57 82
5 Boiler water capacity dm3 ~57 ~78 ~115
6 Required draught Pa 24÷34 25÷35 25÷35
7 Min. chimney height m 5 7,5
8 Min. chimney cross-section area cm x cm

Æ cm


Æ 20

9 Flue diameter mm 170×170
10 Max. operating pressure bar 1,5
11 Max. water temperature °C 90
12 Heat efficiency at rated power % do 82 do 82 do 82
13* Single-charge sustained combustion at rated/minimal power h ~9/~21 ~10/~30 ~11/~32
14 Connection pipes, leaving/return water mm Æ48,3×4 (1 1/2”) gwintowane Æ60,3×4 (2”) gwintowane
15 Net weight of empty boiler kg 220 282 420
16 Overall dimensions height mm 1095 1266 1438
width mm 398 522 530
depth (incl. flue) mm 709 900 850
17 Power supply ~230V/50Hz
18 Power consumption regulator W 4
fan blower W 25
19 IP rating regulator IP 20
fan IP 44
ZĘBIEC boilers Thermal output Heated floor area [m2], based on the heat transfer coefficient of the walls (insulation)
U 1 [W/m2K] U ~ 0,7 [W/m2K] U ~ 0,5 [W/m2K] U ~ 0,3 [W/m2K]
no insulation ~5cm styrofoam ~8cm styrofoam ~10cm styrofoam
KMW 16 5÷16 135 150 180 235
KMW 23 8÷23 200 230 270 350
KMW 30 10÷30 260 300 350 460