Key Facts

- Wall mounted gas condensing boilers, sealed combustion chamber, for open flue or room sealed operation

- High standard seasonal efficiency [to DIN] up to 110 % (net cv) / 99 % (gross cv) for the best possible energy efficiency

- Premix burner for natural gas E, LL and LPG, variable modulating heating output from 1.8 kW

- With expansion vessel, modulating high efficiency pump (EEI < 0.23) and 3-way valve as standard

- WOLF "ALUPro" coated heating water heat exchanger

- Efficient combustion technology with gas-adaptive, self-calibrating combustion controller that adjusts automatically to the gas quality (such as biogas)

- Automatic CO2 settings with self-calibrating combustion air controller for extremely clean combustion

- No overflow valve, no return temperature raising facility – for maximum utilisation of the condensing effect

- Convenient access to all components for quick installation and easy operation and maintenance

- Heating water heat exchanger can be pivoted under system pressure for maintenance without having to drain the heating water

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Key Facts

- Modulation range 17 - 100 %

- Standard seasonal efficiency [to DIN] net cv up to 110 %

- No minimum volume of circulation water

- Option to integrate neutralising system set with booster and condensate removal pump

- Extremely quiet operation

- ISM7i LAN/WLAN module allows communication via smartphone, laptop or PC

- 0-10 V input for BMS system

- 230 V fault message output

- Common sensor connection option for low loss header

- Integral back draught safety device for flue cascade operation

- Possibility of cascade operation with up to 5 appliances

- Fully encased and thermally insulated