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The Vaillant ecoTEC plus combines high quality, minimal consumption, and optimal heat comfort. With the ecoTEC plus, you can heat efficiently without compromising on proven quality. This powerful HR boiler has a CW5 rating and delivers 10.5 liters of hot water per minute (at 60°C).
The ecoTEC plus is a sealed boiler with an additional safe metal casing with acoustic insulation and a safety siphon that prevents the leakage of combustion gases. The boiler guarantees reliable operation, meaning it will continue to deliver heat even if one of its components temporarily fails.
Future-Proof
In the future, it may be possible to heat with natural gas that contains up to 20% hydrogen. Hydrogen is a promising energy source that could eventually enable the transition to a CO2-neutral energy supply. Our ecoTEC plus is already compatible with the blending of 20% hydrogen into natural gas. The boiler has been thoroughly tested and validated to safely heat homes and provide hot water without any modifications, even with 20% hydrogen.
Additionally, the ecoTEC plus is hybrid-ready; the heating system can be expanded with a heat pump. This allows you to use renewable energy sources and heat more efficiently than ever before. Control or remote management is possible with the optional sensoNET gateway in combination with the sensoAPP.
Advantages
Technical Specifications
| Feature | Value |
|---|---|
| Brand | Vaillant |
| Supplier Code | 0010043922 |
| EAN Code | 4024074921029 |
| Discount Group | 016 |
| Width | 440 mm |
| Height | 720 mm |
| Depth | 348 mm |
| Number of Phases | 1 |
| Inlet Connection | Compression |
| Return Connection | Compression |
| Nominal Voltage | 230 - 230 V |
| Frequency | 50 Hz |
| Sealed Design | Yes |
| Nominal Hot Water Output | 35.8 kW |
| Nominal Upper Hot Water Load | 40.7 kW |
| Nominal Lower Hot Water Load | 36.7 kW |
| Energy Efficiency for Hot Water Heating (Nwh) | 86% |
| SEER (Ns) in average conditions | 94 |
| SEER (Ns) in colder conditions | 98.6 |
| SEER (Ns) in warmer conditions | 88.1 |
| Capacity Profile | XL |
| Energy Efficiency Class for Space Heating | A |
| Energy Efficiency Class for Hot Water Heating | A |
| Nominal Hot Water Diameter | 1/2" (15) |
| Supplementary Electricity Consumption at Full Load (ELmax) | 0.037 kW |
| Useful Heat Output at Nominal Heat Output and High-Temperature Operation (P4) | 29.8 kW |
| Useful Efficiency at Nominal Heat Output and High-Temperature Operation (n4) | 88.1% |
| Supplementary Electricity Consumption in Standby Mode (Psb) | 0.002 kW |
| Standby Heat Loss (Pstby) | 0.048 kW |
| With Built-in Economiser | No |
| Energy Efficiency for Space Heating | 94% |
| Hot Water Flow Rate per EN 13203-1 | 11.7 l/min |
| Maximum Hydrogen Blending Percentage with NAT Gas | 20% |
| Suitable for Low Calorific Value Natural Gas | Factory Default |
| Suitable for High Calorific Value Natural Gas | Automatically Adjustable |
| Suitable for Propane | Manually Adjustable |
| Suitable for Butane | Not Suitable |
| Suitable for Methane | Automatically Adjustable |
| Suitable for LPG | Not Suitable |
| Suitable for Hydrogen | Automatically Adjustable |
| Energy Efficiency Class for Space Heating (811/2013/EU) | A |
| Energy Efficiency Class for Hot Water Heating (811/2013/EU) | A |
| Nominal Load | 4.7 - 34 |
| Gas Supply Pressure | 17 - 30 mbar |
| Nominal Load for Hot Water | 4.7 - 40.7 |
| ηs, h (Seasonal Energy Efficiency for Space Heating) | 94% |
| Heat Exchanger Material | Stainless Steel (RVS) |
| Adjustable Heating Capacity | Yes |
| Nominal Cold Water Diameter | 1/2" (15) |
| Min. Operating Pressure | 0.3 bar |
| Min. Return Temperature | 1°C |
| Max. Gas Supply Pressure | 30 mbar |
| Hot Water Output at 60°C | 10.5 l/min |
| Built-in Weather-Dependent Control | No |
| Built-in Expansion Vessel | No |
| Nominal Power 80-60°C | 29.5 kW |
| Max. Flow Temperature (Operating Temperature) | 85°C |
| Max. Operating Pressure | 3 bar |
| Built-in Fill/Drain Valve | No |
| Built-in Pressure Relief Valve | Yes |
| External Pipe Diameter for Flow | 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 Diameter Air Supply Channel | 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 | Flexible |
| External Pipe Diameter for Condensate | 25 mm |
| Min. Gas Supply Pressure | 20 mbar |
| Cold Water Connection | Compression |
| Hot Water Connection | Compression |
| Nominal Diameter for Flue Gas | 80 mm |
| Burner Control High/Low | No |
| Burner Control Modulating | Yes |
| Built-in Manometer | Yes |
| Condensing | Yes |
| Efficiency | 107% |
| Pilot Light | 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 Design (Air Supply) Possible | Yes |
| Nominal Power 50-30°C | 33.3 kW |
| Nominal Diameter for Flow | 3/4" (20) |
| Nominal Diameter for Return | 3/4" (20) |
| Nominal Diameter for Fuel | 1/2" (15) |
| Hot Water Storage | 0 l |
| Nominal Diameter for Condensate | DN 20 |
| Conversion Kit Required | No |
| Operating Pressure | 0.3 - 3 bar |
| Built-in Inlet Combination | No |
| CW Label | 5 |
| Gas Approval HR | Yes |
| Gas Approval NZ | Yes |
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