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Vaillant ecoTEC plus VU INT 306/5-5 25 kW

Photos - Boiler Vaillant ecoTEC plus VU INT 306/5-5 25 kW
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This gas boiler has a single-circuit design, and therefore it can only provide heating, but at the same time the efficiency of the model is at the level of 108% (this is also achieved through the use of the energy of condensation of water vapor). However, Vaillant ecoTEC plus VU INT 306/5-5 supports the possibility of connecting an indirect heating boiler. The total useful power is 25 kW, the modular burner allows you to adjust the power in the range of 20-100%. The system of automatic selection of the optimal gas/air mixing ratio to reduce gas consumption deserves special attention. Note also that the manufacturer provides a special summer mode of operation.
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Vaillant ecoTEC plus VU INT 306/5-5 25 kW
Energy source:gas
Mount:wall, single-circuit
Boiler power:25 kW, area ~ 200 m²
Combustion chamber:closed, flue 60/100 mm

This gas boiler has a single-circuit design, and therefore it can only provide heating, but at the same time the efficiency of the model is at the level of 108% (this is also achieved through the use of the energy of condensation of water vapor). However, Vaillant ecoTEC plus VU INT 306/5-5 supports the possibility of connecting an indirect heating boiler. The total useful power is 25 kW, the modular burner allows you to adjust the power in the range of 20-100%. The system of automatic selection of the optimal gas/air mixing ratio to reduce gas consumption deserves special attention. Note also that the manufacturer provides a special summer mode of operation.

All specifications
Specifications ecoTEC plus VU INT 306/5-5
Main
Energy sourcegas
Installationwall
Typesingle-circuit (heating only)
Heating area200 m²
Condensing
Technical specs
Heat output25 kW
Min. heat output5.2 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
Weight34.5 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 306/5-5:
  • Possibility to connect an indirect heating boiler
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