With the Remeha Calenta Ace Combi Comfort System, you get the perfect combination of ultimate heating comfort and energy savings. This intelligent combination of the high-quality HR boiler and the smart eTwist thermostat is perfectly matched and enables top performance.
The intelligent Calenta Ace is ready for the digital future thanks to its new device control system (eSmart Inside). The boiler features brass hydroblocks. The heat exchanger used in the Calenta Ace is treated with a special surface coating, eliminating the need for physical cleaning. Installing this boiler is easy, as the mounting bracket includes an integrated level.
This model is equipped with a concentric flue gas discharge system.
The eTwist is designed as a modulating room thermostat that efficiently controls heating and cooling systems. It has a wired connection to the device. Additionally, the eTwist can connect to the internet via WiFi, allowing control via an app on a mobile device.
| Feature | Value |
|---|---|
| Brand | Remeha |
| Supplier Code | 7672230 |
| EAN Code | 8713809289072 |
| Width | 450 mm |
| Height | 690 mm |
| Depth | 450 mm |
| Nominal Voltage | 196 - 253 V |
| Frequency | 50 Hz |
| Number of Phases | 1 |
| Closed System | Yes |
| Material Quality | Other |
| Supply Connection | Compression fitting |
| Return Connection | Compression fitting |
| Nominal Power Hot Water | 27.8 kW |
| Nominal Load High Value Hot Water | 31.1 kW |
| Nominal Load Low Value Hot Water | 28.0 kW |
| Energy Efficiency Water Heating (Nwh) | 88 % |
| SEER (average conditions) | 97 |
| SEER (cold conditions) | 99.2 |
| SEER (warm conditions) | 89.4 |
| Capacity Profile | XL |
| Energy Efficiency Class Space Heating | A |
| Energy Efficiency Class Water Heating | A |
| Nominal Diameter Hot Water | DN 15 |
| Supplementary Power Consumption at Full Load (ELmax) | 0.004 kW |
| Useful Heat Output at High Temperature (P4) | 24.8 kW |
| Useful Efficiency at High Temperature (n4) | 89.4 % |
| Standby Power Consumption (Psb) | 0.004 kW |
| Standby Heat Loss (Pstby) | 0.078 kW |
| With Built-in Economiser | Yes |
| Energy Efficiency Space Heating | 97 % |
| Hot Water Flow Rate (EN 13203-1) | 14.5 l/min |
| Heat Exchanger Material | Aluminum |
| Adjustable Heating Power | Yes |
| Nominal Diameter Cold Water | DN 15 |
| Tap Threshold | 1.5 l/min |
| Built-in Pump Control | Yes |
| Gaskeur VR/SV | No |
| Gaskeur NZ | Yes |
| CW Label | 4 |
| Nominal Load Low Value | 25 kW |
| Nominal Load High Value | 27.8 kW |
| Minimum Operating Pressure | 0.8 bar |
| Minimum Return Temperature | 20 °C |
| Maximum Gas Inlet Pressure | 30 mbar |
| Hot Water Capacity at 60 °C | 8.2 l/min |
| Built-in Weather-Dependent Controller | Yes |
| Built-in Expansion Vessel | No |
| Water Resistance at dT 20 °C | 35 kPa |
| Nominal Power 80-60 °C | 24.8 kW |
| Maximum Supply Temperature (Operating Temp.) | 90 °C |
| Maximum Operating Pressure | 3 bar |
| Built-in Fill/Drain Valve | No |
| Built-in Overpressure Valve | Yes |
| Outer Pipe Diameter Supply | 22 mm |
| Outer Pipe Diameter Return | 22 mm |
| Fuel Connection | Compression fitting |
| Outer Pipe Diameter Fuel | 15 mm |
| Air Supply Connection | Insert end |
| Nominal Air Supply Channel Diameter | 100 mm |
| Flue Gas Connection | Insert end |
| Outer Pipe Diameter Cold Water | 15 mm |
| Outer Pipe Diameter Hot Water | 15 mm |
| Condensate Connection | Other |
| Outer Pipe Diameter Condensate | 25 mm |
| Minimum Gas Inlet Pressure | 20 mbar |
| Suitable for Natural Gas | Yes |
| Gaskeur VR | No |
| Cold Water Connection | Compression fitting |
| Hot Water Connection | Compression fitting |
| Nominal Flue Gas Channel Diameter | 60 mm |
| Burner Control High/Low | No |
| Burner Control Modulating | Yes |
| Built-in Manometer | Yes |
| Condensing | Yes |
| Gaskeur HR | Yes |
| Efficiency | 99.2 % |
| Pilot Flame | No |
| Second Return Connection | No |
| Control Signal On/Off | Yes |
| Control Signal High/Low | No |
| Control Signal 0-10V | Yes |
| Control Signal OpenTherm | Yes |
| Operation as Open System (Air Supply Possible) | Yes |
| Nominal Power 50-30 °C | 25.5 kW |
| Suitable for Propane | Yes |
| Suitable for Butane | No |
| Suitable for Methane | Yes |
| Max. Allowable Operating Pressure | 3 bar |
| Nominal Diameter Supply | Other |
| Nominal Diameter Return | Other |
| Nominal Diameter Fuel | DN 15 |
| Hot Water Storage | 1 l |
| Nominal Diameter Condensate | DN 25 |
| Conversion Kit Required | No |
| Built-in Inlet Combination | No |
| CW Label | 4 |
| Gaskeur HR | Yes |
| Gaskeur NZ | Yes |
