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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 coordinated to ensure optimal performance.
The intelligent Calenta Ace is ready for the (digital) future thanks to its new device control system (eSmart Inside). The Calenta Ace boiler is equipped with brass hydro blocks. The heat exchanger used in the Calenta Ace has a special surface treatment, eliminating the need for physical cleaning. Installing this boiler is easy, as the mounting bracket includes an integrated spirit level.
This model features a concentric flue gas outlet.
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. Additionally, the eTwist can connect to the internet via WiFi, allowing control through an app on a mobile device.
| Feature | Value |
|---|---|
| Brand | Remeha |
| Supplier Code | 7672231 |
| EAN Code | 8713809289089 |
| Discount Group | 005 |
| Width | 450 mm |
| Height | 690 mm |
| Depth | 450 mm |
| Power Supply Voltage | 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 System | Yes |
| Nominal Hot Water Power | 38.5 kW |
| Nominal Upper Heating Value for Hot Water | 43.1 kW |
| Nominal Lower Heating Value for Hot Water | 38.8 kW |
| Water Heating Efficiency (Nwh) | 87 % |
| SEER (Ns) under average conditions | 98 |
| SEER (Ns) under cold conditions | 99.6 |
| SEER (Ns) under warm conditions | 89.3 |
| Capacity Profile | XXL |
| 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) | 0.005 kW |
| Useful Heat Output at High Temperature (P4) | 34.5 kW |
| Efficiency at High Temperature (n4) | 89.3 % |
| Supplementary Standby Power Consumption (Psb) | 0.004 kW |
| Standby Heat Loss (Pstby) | 0.054 kW |
| Built-in Economizer | Yes |
| Energy Efficiency Space Heating | 98 % |
| Hot Water Flow Rate (EN 13203-1) | 20.3 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 | 5 |
| Nominal Lower Heating Value Load | 34.8 kW |
| Nominal Upper Heating Value Load | 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 Controller | Yes |
| Built-in Expansion Vessel | No |
| Hydraulic Resistance at dT 20 °C | 46 kPa |
| Nominal Output at 80-60 °C | 34.5 kW |
| Maximum Flow Temperature | 90 °C |
| Maximum Operating Pressure | 3 bar |
| Built-in Fill/Drain Valve | No |
| Built-in Pressure Relief 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 Intake Connection | Push-fit |
| Nominal Air Intake Duct Diameter | 100 mm |
| Flue Gas Outlet Connection | Push-fit |
| Outer Pipe Diameter - Cold Water | 15 mm |
| Outer Pipe Diameter - Hot Water | 15 mm |
| Condensate Drain 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 Duct Diameter | 60 mm |
| Burner Control High/Low | No |
| Burner Control Modulating | Yes |
| Built-in Pressure Gauge | Yes |
| Condensing Technology | Yes |
| Gaskeur 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 System (Air Intake Possible) | Yes |
| Nominal Power at 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 - Supply | Other |
| Nominal Diameter - Return | Other |
| Nominal Diameter - Fuel | DN 15 |
| Hot Water Storage Capacity | 1 l |
| Nominal Diameter - Condensate | DN 25 |
| Conversion Kit Required | No |
| Built-in Inlet Combination | No |
| CW Label | 5 |
| Gaskeur HR | Yes |
| Gaskeur NZ | Yes |
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