Condensing gas boiler MCR4 32/SRK100MG with DHW heater. 7857046100K

Modern heating solution for single-family houses

The wall-mounted condensing gas boiler MCR4 32 kW with an enamelled domestic hot water (DHW) heater is a complete heating solution that combines high efficiency with ecological standards. The device has been adapted to burn gas with a 20% hydrogen blend, making it a future-proof choice in the context of increasing environmental requirements.

The compact design with dimensions of 395 × 700 × 285 mm and a weight of 28.5 kg allows for quick installation even in limited spaces. The stainless steel toroidal heat exchanger is covered by a 5-year warranty, which testifies to the high quality of workmanship and the durability of the device.

Advanced technology and maximum efficiency

The Gas Adaptive System automatically controls the combustion process and adjusts the boiler's operation depending on the gas category (E, Lw, Ls, or propane/butane). This intelligent regulation ensures optimal efficiency while maintaining low pollutant emissions - the NOx <14 mg/kWh level meets the highest ecological standards.

The air-gas module offers a wide power modulation range from 10 to 100%, allowing for precise adjustment of operation to current heating needs. Efficiency at full load reaches 105.8%, which translates into significant savings in operating costs.

The hydraulic module is equipped with a brass body and an A-class modulated pump with an energy efficiency index of EEI <0.23. The central heating/DHW switching valve mounted on the supply and the central heating safety valve 3 bar ensure the safe operation of the installation.

User comfort and installation flexibility

The E-Pilot control console offers weather-compensated control and an intuitive user interface. When equipped with the AF60 outdoor temperature sensor and the Smart TC modulating thermostat, it is possible to manage the system via Wi-Fi using a smartphone or tablet with a free Android/iOS application.

The device provides wide connection possibilities - it can work with air/flue ducting (homologations C10, C13, C33), chimney systems (B23p, C93), distribution systems (C53), or pressurized flue gas discharge (C43P). The set includes a Ø60/100 mm air/flue connector and complete cabling between the boiler and the DHW heater.

An expansion vessel with a capacity of 8 liters mounted in the support frame and a water capacity of 2.5 liters guarantee the stable operation of the entire heating system.