With this Remeha Calenta Ace Combi Comfort System, you bring the best combination of ultimate heating comfort and energy savings into your home. This smart combination of the high-quality HR boiler and an intelligent eTwist thermostat is perfectly synchronized to deliver the best performance.
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, so it does not need to be physically cleaned. Mounting this boiler is easy because the mounting bracket has an integrated level.
This version is equipped with an eccentric flue gas outlet.
The eTwist is designed as a modulating room thermostat that can efficiently control the heating and cooling system. It has a wired connection to the device. The eTwist can be connected to the internet via Wi-Fi, allowing the thermostat to be controlled via an app on a mobile device.
| Feature | Value |
|---|---|
| Brand | Remeha |
| Supplier Code | 7649967 |
| EAN Code | 8713809288259 |
| Discount Group | 005 |
| Width | 450 mm |
| Height | 690 mm |
| Depth | 450 mm |
| Operating Voltage | 230 V |
| Number of Phases | 1 |
| Material Quality | Other |
| Supply Connection | Compression |
| Return Connection | Compression |
| Nominal Voltage | 196 - 253 V |
| Frequency | 50 Hz |
| Closed Version | Yes |
| Nominal Hot Water Power | 27.8 kW |
| Energy Efficiency of Water Heating (Nwh) | 97% |
| Capacity Profile | XL |
| Nominal Diameter Hot Water | DN 15 |
| Supplementary 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% |
| Supplementary Electricity Consumption in Standby Mode (Psb) | 0.004 kW |
| Standby Heat Loss (Pstby) | 0.078 kW |
| With Built-in Economizer | Yes |
| Hot Water Flow Rate according to EN 13203-1 | 14.5 l/min |
| Heat Exchanger Material | Aluminum |
| Adjustable Heating Capacity | Yes |
| Nominal Diameter Cold Water | DN 15 |
| Minimum Flow Rate | 1.5 l/min |
| Built-in Pump Switch | Yes |
| Gas Certification VR/SV | No |
| Gas Certification 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 |
| Hydraulic Resistance at dT 20°C | 35 kPa |
| Nominal Power at 80-60°C | 24.8 kW |
| Maximum Supply Temperature (Operating Temperature) | 90°C |
| Built-in Filling/Draining Valve | No |
| Built-in Pressure Relief Valve | Yes |
| Outer Pipe Diameter Supply | 22 mm |
| Outer Pipe Diameter Return | 22 mm |
| Fuel Connection | Compression |
| Outer Pipe Diameter Fuel | 15 mm |
| Air Supply Connection | Push-in |
| Nominal Channel Diameter Air Supply | 80 mm |
| Flue Gas Connection | Push-in |
| Outer Pipe Diameter Cold Water | 15 mm |
| Outer Pipe Diameter Hot Water | 15 mm |
| Condensate Connection | Other |
| Outer Pipe Diameter Condensate | 25 mm |
| Suitable for Natural Gas | Yes |
| Gas Certification VR | No |
| Cold Water Connection | Compression |
| Hot Water Connection | Compression |
| Nominal Channel Diameter 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 | 99.2% |
| 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 Version (Air Supply) Possible | Yes |
| Nominal Power at 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 Kit Required | No |
| Built-in Inlet Combination | No |
| CW Label | 4 |
| Gas Certification HR | Yes |
| Gas Certification NZ | Yes |
