Vaillant ecoTEC Plus 840 40kW Combi Boiler | 0010036018 (Flue Included)
Vaillant ecoTEC Plus 840 40kW Combi Boiler | 0010036018 (Flue Included)
Vaillant ecoTEC Plus 840 40kW Combi Boiler | 0010036018 (Flue Included)
The Vaillant ecoTEC Plus 840 is a premium 40kW combination boiler engineered for larger homes with demanding hot-water requirements. Delivering up to 19 litres per minute at a 30°C temperature rise, it provides powerful heating and impressive hot-water performance without requiring a separate cylinder.
Vaillant’s intelligent IoniDETECT combustion technology continuously monitors combustion quality, helping the boiler maintain efficient and dependable performance. Its modern semi-touch interface, guided commissioning process and refined internal layout also make installation, setup and servicing straightforward.
Smart-home ready, the ecoTEC Plus 840 can be paired with compatible Vaillant controls and the optional myVAILLANT connect internet gateway for app-based heating control and improved energy management.
Key Features
- Powerful 40kW combi boiler for larger properties
- Excellent hot-water flow rate of up to 19 litres per minute
- 94% ErP seasonal heating efficiency
- A-rated for heating and hot-water performance
- Smart-home ready with optional myVAILLANT connect gateway
- Intelligent IoniDETECT combustion monitoring
- Wide modulation range for efficient operation
- Intuitive semi-touch control interface
- Guided commissioning and setup wizard
- Stainless-steel heat exchanger
- Refined internal layout for easier servicing
- Integrated filling loop supplied
- Compatible with Vaillant’s advanced control range
- Hydrogen blend ready for up to 20% hydrogen
- Low NOx emissions
- Standard 5-year manufacturer guarantee
- Up to 10 years available through eligible Vaillant installers
- Hand-built at Vaillant’s Derbyshire manufacturing facility
Ideal For
The ecoTEC Plus 840 is particularly suited to:
- Larger family homes
- Properties with more than one bathroom
- Households with high hot-water demand
- Replacement of an existing high-output combi boiler
- Customers looking for smart heating control
- Installations where a separate hot-water cylinder is undesirable
Technical Specification
| Specification | Details |
|---|---|
| Manufacturer | Vaillant |
| Range | ecoTEC Plus |
| Model | 840 |
| Manufacturer part number | 0010036018 |
| Supplier stock code | 10086101 |
| EAN | 4024074906767 |
| Boiler type | Combination boiler |
| Fuel | Natural gas |
| Maximum output | 40kW |
| Heating output range at 50/30°C | 4.5–29.8kW |
| Hot-water flow rate at Δ30°C | 19.0 litres per minute |
| Hot-water flow rate at Δ35°C | 16.3 litres per minute |
| Hot-water temperature range | 35–65°C |
| Seasonal efficiency | 94% |
| ErP heating rating | A |
| ErP hot-water rating | A |
| Sound power level | 49dB(A) |
| Minimum operating pressure | 0.7 bar |
| Heat exchanger | Stainless steel |
| Dimensions | H 720 × W 440 × D 386mm |
| Dry weight | 41kg |
| Gas connection | 15mm |
| Heating flow and return | 22mm |
| Hot and cold-water connections | 15mm |
| Filling loop | Included |
| Hydrogen blend ready | Yes, up to 20% |
| LPG compatible | No |
| Magnetic filter included | No |
|
Standard guarantee |
5 years |
Delivery is 6-11 Working Days
Product Details
Product Details
Materials and care
Materials and care
Merchandising tips
Merchandising tips
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