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Vaillant ecoTEC plus VU INT 346/5-5 30 kW

Photos - Boiler Vaillant ecoTEC plus VU INT 346/5-5 30 kW
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Highly efficient single-circuit heating gas boiler with a closed combustion chamber and full support for the built-in eBus communication bus. A distinctive feature of this model is increased energy efficiency, which is achieved through the use of the condensing principle of extracting heat from natural gas combustion products. The latter allows additional use of the latent heat of water vapor condensation. This progressive engineering solution allows the Vaillant ecoTEC plus VU INT 346/5-5 boiler to show 6-7% more efficiency than conventional design boilers. The claimed useful power of 30 kW is enough to heat a private house / cottage, a large multi-room city apartment, office or communal household premises with a total area of up to 240 m2. The device is equipped with a silent circulation...pump with automatic switching, an air vent and a modern digital information and analytical control system DIASystem. Thanks to the closed type combustion chamber and the use of forced flue gas removal, the boiler does not require installation in a separate boiler room and can be placed directly in residential areas.
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Vaillant ecoTEC plus VU INT 346/5-5 30 kW
Energy source:gas
Mount:wall, single-circuit
Boiler power:30 kW, area ~ 240 m²
Combustion chamber:closed, flue 60/100 mm

Highly efficient single-circuit heating gas boiler with a closed combustion chamber and full support for the built-in eBus communication bus. A distinctive feature of this model is increased energy efficiency, which is achieved through the use of the condensing principle of extracting heat from natural gas combustion products. The latter allows additional use of the latent heat of water vapor condensation.

This progressive engineering solution allows the Vaillant ecoTEC plus VU INT 346/5-5 boiler to show 6-7% more efficiency than conventional design boilers. The claimed useful power of 30 kW is enough to heat a private house / cottage, a large multi-room city apartment, office or communal household premises with a total area of up to 240 m2. The device is equipped with a silent circulation pump with automatic switching, an air vent and a modern digital information and analytical control system DIASystem. Thanks to the closed type combustion chamber and the use of forced flue gas removal, the boiler does not require installation in a separate boiler room and can be placed directly in residential areas.

All specifications
Specifications ecoTEC plus VU INT 346/5-5
Main
Energy sourcegas
Installationwall
Typesingle-circuit (heating only)
Heating area240 m²
Condensing
Technical specs
Heat output30 kW
Min. heat output5.8 kW
Power supply230 V
Power consumption80 W
Coolant max. T85 °С
Heating circuit max. pressure3 bar
Consumer specs
"Summer" mode
Circulation pump
Control buseBus
Boiler specs
Efficiency108 %
Combustion chamberclosed (turbocharged)
Flue diameter60/100 mm
Expansion vessel capacity10 L
Heat exchangerstainless steel
Connections
Gas supply1/2"
Central heating flow3/4"
Central heating return3/4"
Safety
Safety systemsgas pressure drop
water overheating
flame loss
draft control
water circulation failure
frost protection
More specs
Dimensions (HxWxD)720x440x338 mm
Weight36.9 kg
Added to E-Catalogaugust 2014
Information in model description is for reference purposes.
Before buying always check characteristics and configuration of product with online store manager
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Additional features boiler Vaillant ecoTEC plus VU INT 346/5-5:
  • Possibility to connect an indirect heating boiler
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