The Vaillant ecoTEC Plus 826 (VUW 20/26CS/1-5) is a premium 26kW combination boiler designed for small to medium 1-2 bathroom homes. It features intelligent combustion, quiet operation, and sleek digital controls. Powered by IoniDETECT technology, it continuously monitors gas quality to optimise efficiency, minimise energy use, and reduce emissions.
Boiler Type
Combi
Water Heat Output
26.5 kW
ERP Rating
A/A
ERP Efficiency
93%
BTU/h
88,700 BTU/h
Depth
995 mm
Height
434 mm
Width
520 mm
Maximum Horizontal Flue 100mm
10m
Maximum Horizontal Flue 125mm
28m
Maximum Vertical Flue 100mm
10m
Maximum Vertical Flue 125mm
30m
External or Internal
Internal
DHW Output
26.5 kW
DHW Response 1m from Tap
5 seconds
DHW Flow Rate at 35 Degree Rise
10.6 L/min
DHW Output Min and Max
35 to 65°C
SEDBUK SAP 2009 Rating
89.3% (Band A / PCDB High Efficiency)
SEDBUK SAP 2005 Rating
89.3% (Band A)
CH Condensing Max Output
21.2 kW
Heat Output
26 kW
Fuel Type
NG OR LPG
Includes
Wall mounting jig, filling loop, semi-touch control interface, manual
The Greenstar Danesmoor External System is designed for open vent heating systems and is ideal for small, medium and large sized homes that include stored hot water. Inspired by installer installer feedback, the boiler has been designed to make installation and servicing easier, whilst also featuring easy to remove one-piece primary baffles. A robust IP45 rated cabinet protects the boiler from the weather.
The Grant Vortex Pro outdoor combination oil boiler features internal frost protection, a 24 litre expansion vessel, neon diagnostic indicators and a factory-fitted condensate trap, together with the conveniently factory-fitted, multi-directional flue - and all of this has been designed to make installation and servicing easier. With larger than normal heat exchangers, the hot water performance of this high-efficiency combi boiler is vastly increased. The two very accurate electronic temperature controls allow the boiler to operate in condensing mode on central heating and instant hot water production can be maintained.
The Yellow system has been developed to make the installation of Grant boilers both quick and simple, whilst ensuring trouble free operation, even in the most exposed site conditions.
The round low level kits feature self-sealing ducts requiring no silicone or tape for joints, and the unique quick-fit clamp arrangement ensures a perfect seal every time. In fact, the new telescopic flue system requires only two simple operations to complete the installation. The kits are compatible with all Grant boilers, (except Outdoor Modules) including condensing models.
The flue terminal has a compact design, making it ideal for installations where the visual appearance is important. The new cone design reduces the possibility of condensate, produced in the combustion process, staining external wall surfaces or patio slabs
The Vaillant ecoTEC Plus 826 (VUW 20/26CS/1-5) is a premium 26kW combination boiler designed for small to medium 1-2 bathroom homes. It features intelligent combustion, quiet operation, and sleek digital controls. Powered by IoniDETECT technology, it continuously monitors gas quality to optimise efficiency, minimise energy use, and reduce emissions.
The Greenstar Danesmoor External System is designed for open vent heating systems and is ideal for small, medium and large sized homes that include stored hot water. Inspired by installer installer feedback, the boiler has been designed to make installation and servicing easier, whilst also featuring easy to remove one-piece primary baffles. A robust IP45 rated cabinet protects the boiler from the weather.
The Grant Vortex Pro outdoor combination oil boiler features internal frost protection, a 24 litre expansion vessel, neon diagnostic indicators and a factory-fitted condensate trap, together with the conveniently factory-fitted, multi-directional flue - and all of this has been designed to make installation and servicing easier. With larger than normal heat exchangers, the hot water performance of this high-efficiency combi boiler is vastly increased. The two very accurate electronic temperature controls allow the boiler to operate in condensing mode on central heating and instant hot water production can be maintained.
The Yellow system has been developed to make the installation of Grant boilers both quick and simple, whilst ensuring trouble free operation, even in the most exposed site conditions.
The round low level kits feature self-sealing ducts requiring no silicone or tape for joints, and the unique quick-fit clamp arrangement ensures a perfect seal every time. In fact, the new telescopic flue system requires only two simple operations to complete the installation. The kits are compatible with all Grant boilers, (except Outdoor Modules) including condensing models.
The flue terminal has a compact design, making it ideal for installations where the visual appearance is important. The new cone design reduces the possibility of condensate, produced in the combustion process, staining external wall surfaces or patio slabs