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With this 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 smart eTwist thermostat is perfectly aligned to deliver the best performance.
Calenta Ace Boiler
The intelligent Calenta Ace is ready for the (digital) future, thanks to the new device control (eSmart Inside). The Calenta Ace boiler features brass hydroblocks. The heat exchanger used in the Calenta Ace is treated with a surface coating, meaning it does not need to be physically cleaned. Installing this boiler is easy because the mounting bracket includes an integrated level.
This version is equipped with an eccentric flue gas outlet.
Smart eTwist Thermostat
The eTwist is designed as a modulating room thermostat, allowing the heating and cooling system to be efficiently controlled. It has a wired connection to the device. It is possible to connect the eTwist to the internet via a Wi-Fi connection, enabling control through an app on a mobile device.
Technical Specifications:
| Feature | Value |
|---|---|
| Brand | Remeha |
| Supplier Code | 7649967 |
| EAN Code | 8713809288259 |
| Width | 450 mm |
| Height | 690 mm |
| Depth | 450 mm |
| Power Supply | 230 V |
| Number of Phases | 1 |
| Material Quality | Other |
| Supply Connection | Compression fitting |
| Return Connection | Compression fitting |
| Nominal Voltage | 196 - 253 V |
| Frequency | 50 Hz |
| Closed Version | Yes |
| Nominal Hot Water Output | 27.8 kW |
| Water Heating Energy Efficiency (Nwh) | 97 % |
| Capacity Profile | XL |
| Nominal Diameter Hot Water | DN 15 |
| Additional Electricity Consumption at Full Load (ELmax) | 0.004 kW |
| Useful Heat Output at Nominal Heat Output and Operation at High Temperature (P4) | 24.8 kW |
| Useful Efficiency at Nominal Heat Output and Operation at High Temperature (n4) | 89.4 % |
| Additional Electricity Consumption in Standby Mode (Psb) | 0.004 kW |
| Standby Heat Loss (Pstby) | 0.078 kW |
| Built-in Economizer | Yes |
| Hot Water Flow Rate according to EN 13203-1 | 14.5 l/min |
| Heat Exchanger Material | Aluminium |
| Adjustable Heating Power | Yes |
| Nominal Diameter Cold Water | DN 15 |
| Minimum Flow Rate | 1.5 l/min |
| Built-in Pump Control | Yes |
| Gas Certificate VR/SV | No |
| Gas Certificate NZ | Yes |
| CW Label | 4 |
| Minimum Return Temperature | 20 °C |
| Hot Water Capacity at 60 °C | 11 l/min |
| Built-in Weather-Dependent Controller | Yes |
| Built-in Expansion Vessel | No |
| Hydronic Resistance at dT 20 °C | 35 kPa |
| Nominal Power 80-60 °C | 24.8 kW |
| Maximum Flow Temperature (Operating Temperature) | 90 °C |
| Built-in Filling/Draining Valve | No |
| Built-in Pressure Relief Valve | Yes |
| External Pipe Diameter Supply | 22 mm |
| External Pipe Diameter Return | 22 mm |
| Fuel Connection | Compression fitting |
| External Pipe Diameter Fuel | 15 mm |
| Air Supply Connection | Push-fit |
| Nominal Pipe Diameter Air Supply | 80 mm |
| Flue Gas Outlet Connection | Push-fit |
| External Pipe Diameter Cold Water | 15 mm |
| External Pipe Diameter Hot Water | 15 mm |
| Condensate Connection | Other |
| External Pipe Diameter Condensate | 25 mm |
| Suitable for Natural Gas | Yes |
| Gas Certificate VR | No |
| Cold Water Connection | Compression fitting |
| Hot Water Connection | Compression fitting |
| Nominal Pipe Diameter Flue Gas Outlet | 80 mm |
| Burner Control High/Low | No |
| Burner Control Modulating | Yes |
| Built-in Manometer | Yes |
| Condensing | Yes |
| Gas Certificate HR | Yes |
| Efficiency | 99.2 % |
| Pilot Flame | No |
| Second Return Connection | No |
| On/Off Control Signal | Yes |
| High/Low Control Signal | No |
| 0-10V Control Signal | Yes |
| OpenTherm Control Signal | Yes |
| Operation as Open Version (Air Supply) Possible | Yes |
| Nominal Power 50-30 °C | 25.5 kW |
| Suitable for Propane | Yes |
| Suitable for Butane | No |
| Suitable for Methane | Yes |
| Maximum 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 Set Required | No |
| Built-in Inlet Combination | No |
| CW Label | 4 |
| Gas Certificate HR | Yes |
| Gas Certificate NZ | Yes |
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