Heaters
Water Heaters
Gas-Fired Instantaneous Water Heaters
2M Engineering/DemirDokum Gas-Fired Chimney Type Water Heaters
(D-250 S, D-250 SE)

- Can be operated at very low temperatures (0.1 bar - 1 mWC).
- Gas consumption can be adjusted by the gas control knob.
- Both the ignition and gas flow rate adjustment functions are ralised by the gas control knob.


Nominal heat output range: 10.4/17.4/19.2/24.4 kW (250 kcal/min).
Three types of water heaters according to performance; selector type, thermostatic type, basic type.
Two types of water heaters according to ignition system; piezo type, electronic type.
Flue Senser: In case of any problem in flue draught, it cuts off the gas inlet to the water heater.
Water controlled gas valve: When the hot water tap is closed it closes the gas inlet to the main burner and prevents waterless burning.
Pilot flame-thermocouple-magnetic coil: When the pilot flame goes out due to any reason, this system cuts off the gas inlet to the water heater.
Main gas valve: This valve is the third security valve to prevent unburned gas leakage to the main burner. It also adjusts gas flow rate.
Security valve: In case of very high water pressure, it protects the water heater from draining the water.
ODS (Oxygen Detection Security System): When the oxygen level decreases, first the pilot flame goes out then this system cuts off gas inlet.
Overheating Sensor: In case of overheating, the gas inlet is closed automatically.
Electrical Storage Water Heater - Digital
2M Engineering/DemirDokum Electrical Storage Water Heater - Digital
- A complete range of products available from 50 to 120 lt.
- Internal adj./external adj of cylindirycal model, standart/lux/digital alternatives of phrismatic model.
- Incoloy heating element that power rate is 2 kW features more durability, efficiency and absolute safety.
- Titanium based enamel technology tahk features lond life and hygiene.
- Maximum protection to corrosion on special steel tank is feature by high potential type magnesium anode.
- Monoblock polyurethane that is 3-7 cm thickness saves energy and cut cost.
- There are several safety system which has freeze protection by special thermostat, overheat thermostat, pressure safety valve and N-automatic fuse.
- The water temperature isadjusted by one touch buttons.
- Instant water temperature and adjusted temperature can be seen on the digital indicator.
- Easy installation.
- Nicely proportioned.
- Thermostat control.
- Magnesium anode.
- Titanium enamel.
- Freeze protection.
For technical information click here
Electrical Instantaneous Water Heater
2M Engineering/DemirDokum Electrical Instantaneous Water Heater
7kW output, Two-step heat output (3.5kW & 7 kW), One-knob control, Open System, Over heating safety system, Shower head & other connection accessories.

Thermo Boilers

2M Engineering/DemirDokum Thermo Boiler
  • The Demirdokum Thermo-Boiler (Calorifier) is designed for the production of domestic hot water in private homes, small apartment buildings or shops, offices and in industry.
  • The Demirdokum Thermo-Boiler ( Calorifier ) is also suitable for use in conjuction with district heating systems, heat pumps, solar collectors and waste heat recovery systems.
  • A helicoidal coil with a large surface makes the production of huge hot water quantities possible either when the boiler is operating continuously or instantaneously.Thermo Boiler
  • An extra 2 kW standard electric heater is installed with the Thermo-Boiler.
  • The Thermo-Boiler is manufactured of high-grade sheet steel which enables it to withstand a maximum hot water working pressure of 12 bar. The inside surfaces are lined with high-quartz content vitrified enamel so that the water is suitable for domestic comsumption.
  • A magnesium anode provides extra protection against corrosion.
  • A thick layer of foamed rigid polyurethane externally coated with sheet steel guarantees complete insulation with minumum heat loss.
  • The sheet steel casing of the cylinder is painted with powder coated finish.
  • To prevent the risk of legionella bacteria contamination, a storage temperature of 65°C is maintained. In addition, the Coil extends completely to the bottom of the cylinder so that the entire volume is heated, preventing any cold spots at the bottom where bacteria might flourish.
  • When the pressure increases, the safety valve mounted on the cold water inlet decreases the pressure thus maintaining full safety.
  • The Thermo-Boiler is wall hung with mounting brackets and does not restrict usable space.
  • Suitable for use with all Demirdokum Boilers and all other boilers via TB-100 Control panel which supplies continuous comfort. The Summer-Winter selection can be made on the control panel. It supplies 80°C hot water from the boiler to the Thermo-Boiler as an independent boiler thermostat adjustment.
For technical information click here

Alfa Laval Plate Heat Exchangers
Plate Heat Exchangers
Today the plate heat exchanger is a very well established component installed in a huge number of water heating systems all over the world. The fact that customers and installers using the plate heat exchanger are very pleased is pPlate Heat Exchangersroven by the increasing number of units installed.
The advantages of using a plate heat exchanger in a tap water heating system compared to the tank are remarkable. The plate heat exchanger heats the tap water to the required temperature when it passes through the heat exchanger. This means instant heating and having hot tap water available to the comsumer at any time.

REHAU Underfloor Heating
Underfloor Heating
2M Engineering/REHAU Underfloor heating system featuring the new, safe, undetachable and economical Rehau compression sleeve and RAUTHERM S in RAU-VPE (PE-Xa) as well as many other system components, such as the new heating pipe distribution header and the new individual room control system.
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