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With the Remeha Calenta Ace Combi Comfort System, you get the best combination of ultimate heating comfort and energy savings for your home. This smart combination of the high-quality HR boiler and a smart eTwist thermostat is perfectly aligned to ensure optimal performance.
Calenta Ace Boiler
The intelligent Calenta Ace is future-proof (digitally) thanks to the new device control (eSmart Inside). The Calenta Ace boiler is equipped with brass hydroblocks. The heat exchanger used in the Calenta Ace has a surface treatment, so it does not need to be physically cleaned. Installing the boiler is simple thanks to the integrated level in the mounting bracket.
This model is equipped with a concentric flue gas outlet.
Smart eTwist Thermostat
The eTwist is designed as a modulating room thermostat that efficiently controls the heating and cooling system. It has a wired connection to the device. It is possible to connect the eTwist via Wi-Fi to the internet, so the thermostat can be controlled via an app on a mobile device.
Technical Specifications:
| Feature | Value |
|---|---|
| Brand | Remeha |
| Supplier Code | 7672231 |
| EAN Code | 8713809289089 |
| Width | 450 mm |
| Height | 690 mm |
| Depth | 450 mm |
| Voltage | 230 V |
| Number of Phases | 1 |
| Material Quality | Other |
| Flow Connection | Compression |
| Return Connection | Compression |
| Nominal Voltage | 196 - 253 V |
| Frequency | 50 Hz |
| Closed Version | Yes |
| Nominal Domestic Hot Water Power | 38.5 kW |
| Nominal Maximum Load Domestic Hot Water | 43.1 kW |
| Nominal Minimum Load Domestic Hot Water | 38.8 kW |
| Energy Efficiency of Water Heating (Nwh) | 87 % |
| SEER (Ns) under average conditions | 98 |
| SEER (Ns) under cooler conditions | 99.6 |
| SEER (Ns) under warmer conditions | 89.3 |
| Capacity Profile | XXL |
| Energy Efficiency Class Space Heating | A+ |
| Energy Efficiency Class Water Heating | A |
| Nominal Diameter Hot Water | DN 15 |
| Additional Power Consumption at Full Load (ELmax) | 0.005 kW |
| Useful Heat Output at Nominal Output and High-Temperature Operation (P4) | 34.5 kW |
| Useful Efficiency at Nominal Output and High-Temperature Operation (n4) | 89.3 % |
| Additional Power Consumption in Standby Mode (Psb) | 0.004 kW |
| Standby Heat Loss (Pstby) | 0.054 kW |
| With Built-in Economizer | Yes |
| Energy Efficiency Space Heating | 98 % |
| Hot Water Flow Rate according to EN 13203-1 | 20.3 l/min |
| Heat Exchanger Material | Aluminum |
| Adjustable Heating Power | Yes |
| Nominal Diameter Cold Water | DN 15 |
| Minimum Flow Rate | 1.5 l/min |
| Built-in Pump Switch | Yes |
| Gas Approval VR/SV | No |
| Gas Approval NZ | Yes |
| CW Label | 5 |
| Nominal Minimum Load | 34.8 kW |
| Nominal Maximum Load | 38.7 kW |
| Minimum Operating Pressure | 0.8 bar |
| Minimum Return Temperature | 20 °C |
| Maximum Gas Supply Pressure | 30 mbar |
| Domestic Hot Water Capacity at 60 °C | 11 l/min |
| Built-in Weather-Dependent Regulator | Yes |
| Built-in Expansion Vessel | No |
| Hydronic Resistance at ΔT 20 °C | 46 kPa |
| Nominal Output 80-60 °C | 34.5 kW |
| Maximum Flow Temperature (Operating Temperature) | 90 °C |
| Maximum Operating Pressure | 3 bar |
| Built-in Fill/Drain Valve | No |
| Built-in Pressure Relief Valve | Yes |
| External Pipe Diameter Flow | 22 mm |
| External Pipe Diameter Return | 22 mm |
| Fuel Connection | Compression |
| External Pipe Diameter Fuel | 15 mm |
| Air Supply Connection | Push-fit |
| Nominal Channel Diameter Air Supply | 100 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 |
| Minimum Gas Supply Pressure | 20 mbar |
| Suitable for Natural Gas | Yes |
| Gas Approval VR | No |
| Cold Water Connection | Compression |
| Hot Water Connection | Compression |
| Nominal Channel Diameter Flue Gas Outlet | 60 mm |
| Burner Control High/Low | No |
| Modulating Burner Control | Yes |
| Built-in Manometer | Yes |
| Condensing | Yes |
| Gas Approval HR | Yes |
| Efficiency | 99.1 % |
| Pilot Light | 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 Possible as Open Version (Air Supply) | Yes |
| Nominal Output 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 Flow | Other |
| Nominal Diameter Return | Other |
| Nominal Diameter Fuel | DN 15 |
| Hot Water Stock | 1 l |
| Nominal Diameter Condensate | DN 25 |
| Conversion Kit Required | No |
| Built-in Inlet Combination | No |
| CW Label | 5 |
| Gas Approval HR | Yes |
| Gas Approval NZ | Yes |
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