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 surface-treated, meaning it does not need to be physically cleaned. Mounting the boiler is easy as the mounting bracket includes an integrated spirit level.
The system can optionally be expanded with a (semi-)automatic refill unit, allowing the system to be automatically and intelligently refilled via the boiler's control panel, the eTwist, or the handy eTwist app.
This version is equipped with an eccentric flue gas outlet.
| Feature | Value |
|---|---|
| Brand | Remeha |
| Supplier Code | 7649960 |
| EAN Code | 8713809288235 |
| Discount Group | 005 |
| Width | 450 mm |
| Height | 690 mm |
| Depth | 450 mm |
| Supply Voltage | 230 V |
| Number of Phases | 1 |
| Material Quality | Other |
| Inlet Connection | Compression |
| Return Connection | Compression |
| Nominal Voltage | 196 - 253 V |
| Frequency | 50 Hz |
| Closed Version | Yes |
| Nominal Hot Water Output | 27.8 kW |
| Nominal Maximum Hot Water Output | 31.1 kW |
| Nominal Minimum Hot Water Output | 28 kW |
| Energy Efficiency for Water Heating (Nwh) | 88% |
| SEER (Ns) under average conditions | 94 |
| SEER (Ns) under colder conditions | 99.2 |
| SEER (Ns) under warmer conditions | 89.4 |
| Capacity Profile | XL |
| Energy Efficiency Class for Space Heating | A |
| Energy Efficiency Class for Water Heating | A |
| Nominal Diameter for Hot Water | DN 15 |
| Additional Electricity Consumption under Full Load (ELmax) | 0.004 kW |
| Useful Heat Output at Nominal Heat Output and High Temperature (P4) | 24.8 kW |
| Efficiency at Nominal Heat Output and High Temperature (n4) | 89.4% |
| Additional Electricity Consumption in Standby Mode (Psb) | 0.004 kW |
| Standby Heat Loss (Pstby) | 0.078 kW |
| With Built-In Economizer | Yes |
| Energy Efficiency for Space Heating | 94% |
| Hot Water Flow Rate according to EN 13203-1 | 14.5 l/min |
| Heat Exchanger Material | Aluminium |
| Heating Power Adjustable | Yes |
| Nominal Diameter for Cold Water | DN 15 |
| Tap Threshold | 1.5 l/min |
| With Built-In Pump Switch | Yes |
| Gas Certification VR/SV | No |
| Gas Certification NZ | Yes |
| CW Label | 4 |
| Nominal Minimum Load | 25 kW |
| Nominal Maximum Load | 27.8 kW |
| Minimum Operating Pressure | 0.8 bar |
| Minimum Return Temperature | 20°C |
| Maximum Gas Supply Pressure | 30 mbar |
| Hot Water Capacity at 60°C | 8.2 l/min |
| With Built-In Weather-Dependent Regulator | Yes |
| With Built-In Expansion Vessel | No |
| Hydraulic Resistance at ΔT 20°C | 35 kPa |
| Nominal Power 80-60°C | 24.8 kW |
| Maximum Flow Temperature (Operating Temperature) | 90°C |
| Maximum Operating Pressure | 3 bar |
| With Built-In Fill/Drain Valve | No |
| With Built-In Pressure Relief Valve | Yes |
| External Pipe Diameter for Inlet | 22 mm |
| External Pipe Diameter for Return | 22 mm |
| Fuel Connection | Compression |
| External Pipe Diameter for Fuel | 15 mm |
| Air Supply Connection | Push Fit |
| Nominal Channel Diameter for Air Supply | 80 mm |
| Flue Gas Connection | Push Fit |
| 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 Supply Pressure | 20 mbar |
| Suitable for Natural Gas | Yes |
| Gas Certification VR | No |
| Nominal Channel Diameter for Flue Gas | 80 mm |
| Burner Control High/Low | No |
| Burner Control Modulating | Yes |
| With Built-In Manometer | Yes |
| Condensing | Yes |
| Gas Certification HR | Yes |
| Efficiency | 99.2% |
| Pilot Flame | No |
| Second Return Connection | No |
| Regulation Signal On/Off | Yes |
| Regulation Signal High/Low | No |
| Regulation Signal 0-10V | Yes |
| Regulation Signal OpenTherm | 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 Permissible Operating Pressure | 3 bar |
| Nominal Diameter for Inlet | Other |
| Nominal Diameter for Return | Other |
| Nominal Diameter for Fuel | DN 15 |
| Hot Water Reserve | 1 l |
| Nominal Diameter for Condensate | DN 25 |
| Conversion Kit Required | No |
| With Built-In Inlet Combination | No |
| CW Label | 4 |
| Gas Certification HR | Yes |
| Gas Certification NZ | Yes |
