ecoTEC sustain 24, 28, 34kW
Combination boiler range
- Designed for specification in the social housing market
- Quiet Mark awarded
- High efficiency ErP 'A' rated product
- High quality stainless steel heat exchanger designed for long life and easy maintenance
- New condensate trap with safety back-up
Overview
Combination boiler range
The ecoTEC sustain is a new generation of boiler, designed for specification in the social housing market with easy use, longevity and low maintenance firmly in mind.
The ecoTEC sustain range of combination boilers feature a high-quality stainless steel heat exchanger, designed with front access for ease of service, resulting in less time and money spent on repairs and ensuring your tenants' peace of mind.
The range features 24, 28 and 34kW combination models to suit all types of tenant properties. Where a specification requires a system or open vent boiler, ecoFIT pure products can be used.
Features and benefits
- Compact dimensions: 720mm (H) x 440mm (W) x 338mm (D) - For flexible siting options (ecoTEC sustain is the same size as ecoTEC pro)
- High-quality heat exchanger - Stainless steel heat exchanger designed for long life and easy maintenance
- Removable side panels and push-fit flue system - For improved accessibility and ease of installation
- Modulating low NOx burner and fan - Lower emissions to fulfill social housing green credentials
- Recognised Grundfos high-efficiency pump - Modulating high-torque pump uses low energy to deliver a balanced output to meet the boiler demand, helping to reduce energy consumption
- New condensate trap with safety back-up - Removable from the base of the appliance for easy install and maintenance
- Large illuminated blue on black LED display - Easy-to-read boiler display wherever it is sited with simple fault code identifications
- Compatible with aroTHERM air-to-water heat pump hybrid system - Making the perfect entry into renewable systems
- Familiar footprint and flue position - Makes replacing an existing ecoTEC pro with an ecoTEC sustain quicker and easier; compatible with all existing Vaillant flue components
- Controls compatibility - The wide range of Vaillant room thermostats, wired and wireless controls including the vSMART™ app-based control with weather compensation to lower running costs for tenants
- ErP 'A' rated product - Suitable for both refurbishment and new build with lower running costs to reduce tenant heating bills
Quiet Mark awarded
Quiet Mark is the international award for excellence in quiet product design and is awarded to worldwide manufacturers of the quietest products.
See more on the ecoTEC pro combi boiler
Specifications
Specifications
| Technical data | Unit of measure | ecoTEC sustain 24 | ecoTEC sustain 28 | ecoTEC sustain 34 |
|---|---|---|---|---|
| General | ||||
| Boiler type | combi | combi | combi | |
| Signature model output | 24kW | 28kW | 34kW | |
| Article number | 0010019980 | 0010019981 | 0010019982 | |
| Gas Council number | 47-044-79 | 47-044-80 | 47-044-81 | |
| Boiler dimensions (HxWxD) | mm | 720 x 440 x 338 | 720 x 440 x 338 | 720 x 440 x 338 |
| Heating | ||||
| Nominal heat output range at 50/30°C (Condensing mode) | kW | 7.0 - 20.1 | 8.0 - 20.1 | 9.1 - 19.9 |
| Nominal heat output range at 80/60°C (Non condensing mode) | kW | 6.4 - 18.5 | 7.4 - 18.5 | 8.4 - 18.5 |
| Maximum flow temperature | °C | 80 | 80 | 80 |
| Flow temperature range | °C | 30 - 80 | 30 - 80 | 30 - 80 |
| Flow temperature factory setting | °C | 75 | 75 | 75 |
| Approximate condensate volume at 50/30°C | litres/hr | 1.87 | 1.87 | 1.87 |
| Modulation (max/min) | 1 : X | 1:3.8 | 1:3.8 | 1:4 |
| Domestic Hot Water | ||||
| Maximum heat output for water generation | kW | 24.3 | 28.1 | 34.0 |
| Lowest water pressure to operate boiler | bar | 0.3 | 0.3 | 0.3 |
| Lowest water flow for operation | l/min | 1.7 | 1.7 | 1.7 |
| Lowest water pressure for maximum flow rate | bar | 0.8 | 0.8 | 0.8 |
| Domestic hot water flow rate (at DT = Δ35K) | l/min | 9.9 | 11.6 | 14.1 |
| Hot water output temperature range | ˚C | 35 - 60 | 35 - 60 | 35 - 60 |
| Mechanical | ||||
| Expansion vessel size | litres | 8 | 8 | 8 |
| Gas inlet connection (pipe size) | mm | 15 | 15 | 15 |
| Heating flow and return connections (pipe size) | mm | 22 | 22 | 22 |
| Hot and cold water connections (pipe size) | mm | 15 | 15 | 15 |
| Heat exchanger material | Stainless/Aluminium | Stainless Steel | Stainless Steel | Stainless Steel |
| Boiler lift weight (dry boiler) | kg | 30.8 | 30.8 | 32.8 |
| Performance | ||||
| NOx class | 5 | 5 | 5 | |
| NOx (En 15502-2-1) | mg/kWh | 32.8 | 34.2 | 31.1 |
| ErP efficiency | % | 92 | 92 | 92 |
| ErP decibel rating (sound power) | dBa | 49 | 48 | 43 |
| Fluing options | ||||
| Maximum horizontal flue length 60/100 | m | 9 | 9 | 10 |
| Maximum vertical flue length 60/100 | m | 10 | 10 | 11 |
| Maximum horizontal flue length 80/125 | m | 23 | 28 | 31 |
| Maximum vertical flue length 80/125 | m | 23 | 28 | 31 |
Related Products
Related Products
vSMART™ intelligent room control with app
- Smart phone app for both Android and Apple iOS application
- Self learning
- Weather compensation
Vaillant VRT 350 heating control
- Easy to use with flexible functions
- Choose between wired and wireless controls
- Reduce your energy bills by using the minimum energy required
Vaillant VRT 50 Room Thermostat
- Simple to use
- Digtial display of current room temprature
- Compatible with the timeSWITCH 150