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With the Remeha Calenta Ace Combi Comfort System, you get the best combination of ultimate heating comfort and energy savings in your home. This smart combination of the high-quality HR boiler and the intelligent eTwist thermostat is perfectly synchronized, ensuring the best performance.
The intelligent Calenta Ace is ready for the (digital) future thanks to its new device control (eSmart Inside). The Calenta Ace boiler is equipped with brass hydro blocks. The heat exchanger used in the Calenta Ace has a surface treatment that eliminates the need for physical cleaning. Installing this boiler is easy because the mounting bracket includes an integrated spirit level.
This version is equipped with an eccentric flue gas discharge.
The eTwist is designed as a modulating room thermostat, allowing for efficient control of the heating and cooling system. It has a wired connection to the device. It is possible to connect the eTwist to the internet via Wi-Fi, so the thermostat can be controlled using an app on a mobile device.
| Feature | Value |
|---|---|
| Brand | Remeha |
| Supplier Code | 7649968 |
| EAN Code | 8713809288266 |
| Width | 450 mm |
| Height | 690 mm |
| Depth | 450 mm |
| Voltage | 230 V |
| Number of Phases | 1 |
| Material Quality | Other |
| Flow Connection | Compression fitting |
| Return Connection | Compression fitting |
| Nominal Voltage | 196 - 253 V |
| Frequency | 50 Hz |
| Closed Version | Yes |
| Nominal Power for Hot Water | 38.5 kW |
| Nominal Load Upper Limit for Hot Water | 43.1 kW |
| Nominal Load Lower Limit for Hot Water | 38.8 kW |
| Energy Efficiency of Hot Water Heating (Nwh) | 87% |
| SEER (Ns) under average conditions | 98 |
| SEER (Ns) under colder conditions | 99.6 |
| SEER (Ns) under warmer conditions | 89.3 |
| Capacity Profile | XXL |
| Energy Efficiency Class for Space Heating | A+ |
| Energy Efficiency Class for Water Heating | A |
| Nominal Diameter for Hot Water | DN 15 |
| Supplementary Power Consumption at Full Load (ELmax) | 0.005 kW |
| Useful Heat Output at Nominal Heat Output and Operation at High Temperature (P4) | 34.5 kW |
| Useful Efficiency at Nominal Heat Output and Operation at High Temperature (n4) | 89.3% |
| Supplementary Power Consumption in Standby Mode (Psb) | 0.004 kW |
| Standby Heat Loss (Pstby) | 0.054 kW |
| With Built-in Economizer | Yes |
| Energy Efficiency of Space Heating | 98% |
| Hot Water Flow Rate according to EN 13203-1 | 20.3 l/min |
| Material of Heat Exchanger | Aluminum |
| Adjustable Heating Power | Yes |
| Nominal Diameter for Cold Water | DN 15 |
| Flow Threshold | 1.5 l/min |
| Built-in Pump Switch | Yes |
| Gas Certification VR/SV | No |
| Gas Certification NZ | Yes |
| CW Label | 5 |
| Nominal Load Lower Limit | 34.8 kW |
| Nominal Load Upper Limit | 38.7 kW |
| Minimum Operating Pressure | 0.8 bar |
| Minimum Return Temperature | 20 °C |
| Maximum Gas Inlet Pressure | 30 mbar |
| Hot Water Capacity at 60 °C | 11 l/min |
| Built-in Weather-Dependent Regulator | Yes |
| Built-in Expansion Vessel | No |
| Hydraulic Resistance at dT 20 °C | 46 kPa |
| Nominal Power 80-60 °C | 34.5 kW |
| Maximum Flow Temperature (Operating Temperature) | 90 °C |
| Maximum Operating Pressure | 3 bar |
| Built-in Filling/Draining Valve | No |
| Built-in Pressure Relief Valve | Yes |
| External Pipe Diameter for Flow | 22 mm |
| External Pipe Diameter for Return | 22 mm |
| Fuel Connection | Compression fitting |
| External Pipe Diameter for Fuel | 15 mm |
| Air Supply Connection | Push-in end |
| Nominal Channel Diameter for Air Supply | 80 mm |
| Flue Gas Connection | Push-in end |
| External Pipe Diameter for Cold Water | 15 mm |
| External Pipe Diameter for Hot Water | 15 mm |
| Condensate Connection | Other |
| External Pipe Diameter for Condensate | 25 mm |
| Minimum Gas Inlet Pressure | 20 mbar |
| Suitable for Natural Gas | Yes |
| Gas Certification VR | No |
| Cold Water Connection | Compression fitting |
| Hot Water Connection | Compression fitting |
| Nominal Channel Diameter for Flue Gas Outlet | 80 mm |
| Burner Control High/Low | No |
| Modulating Burner Control | Yes |
| Built-in Manometer | Yes |
| Condensing | Yes |
| Gas Certification HR | Yes |
| Efficiency | 99.1% |
| 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 Version (Air Supply) Possible | Yes |
| Nominal Power 50-30 °C | 35.6 kW |
| Suitable for Propane | Yes |
| Suitable for Butane | No |
| Suitable for Methane | Yes |
| Maximum Allowable Operating Pressure | 3 bar |
| Nominal Diameter for Flow | Other |
| Nominal Diameter for Return | Other |
| Nominal Diameter for Fuel | DN 15 |
| Hot Water Storage | 1 l |
| Nominal Diameter for Condensate | DN 25 |
| Conversion Kit Required | No |
| Built-in Air Inlet Combination | No |
| CW Label | 5 |
| Gas Certification HR | Yes |
| Gas Certification NZ | Yes |
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