The THERM 49 KD a wall-hung gas condensing boiler, expands the technically most advanced series of the PREMIUM Condens boilers. The active combustion operation control, provided by state-of-the-art components and electronics, ensures economical energy consumption. The boilers have stainless exchanger with cooled front burner wall. The new type of the gas valve in cooperation with this burner excels in a high degree of power modulation in a continuously adjustable range of 15 - 100%. A high user comfort is provided by the easy control together with a built-in equitherm regulation and the possibility of control using a superior room regulator.

The major advantage of THERM 65 KD boilers is the option to connect into cascade boiler rooms in houses and other industrial and residential buildings. This provides a highly economical and ecological solution for heating utility water in larger buildings. This intelligent system of condensing cascade boiler rooms is also adapted for older residential buildings, e.g. prefabricated buildings where due to its verified quality, it becomes one of the most effective forms of revitalization.


Recommended retail price: on request

eu_flagThe product THERM 49 KD complies all legislative, safety, healthy and environmental requirements of the European Union and CE mark enables the free movement of products within the market of the European Economic Area.

Emission category NOx 6 View the ErP label
  • Exceptionally ecological operation – Class NOx 6
  • Condensing body with a brand of new type of burner: BLUEJET®
  • Broad modulation range: from 7.4 kW to 49.5 kW
  • New design of a multiphase fan
  • Noise reduction at higher speed
  • Electrically modulated SGV gas valve
  • Modulated high-efficiency circulating pump
  • New control unit with auto-diagnostics
  • The electronic system receives feedback about the status of burning and performs optimisation of the program map
  • The product is designed for heating systems
  • There is also the option to heat wather in an external reservoir and fitting with a three-way valve
  • Option of connection into cascade boiler rooms in order to increase heating power
Technical data Unit THERM 49 KD
Class of seasonal energy efficiency of heating - A
Nominal thermal input power kW 47.0
Min. – max. thermal output for heating kW 7.4 - 49.5
Fuel - natural gas
Gas consumption - natural gas m3/h 0.60 - 4.70
Min. – max. overpressure of heating system bar 0.8 - 3.0
Maximum input pressure of heating water °C 80
Boiler efficiency % 98 - 107
Volume of expansion unit l -
Nominal supply voltage / frequency V/Hz 230/50~
Auxiliary electricity at rated heat input W 86.0
Level of coverage of electrical part - IP x1D
Diameter of smoke flue mm 80/125, 2x80
Dimensions: height / width / depth mm 800/430/395
Weight of boiler kg 39
Order number - 10124
Impurity separator with magnet

Impurity separator with magnet

Category: Filters and impurity separators
Connection: 3/4", 1"
Order No.: 43566, 43567
Impurity separator with magnet and filter

Impurity separator with magnet and filter

Category: Filters and impurity separators
Connection: 3/4", 1"
Order No.: 43684, 43685