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Vaillant ecoTEC pro VUW INT 346/5-3 28 kW

Photos - Boiler Vaillant ecoTEC pro VUW INT 346/5-3 28 kW
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Highly efficient German double-circuit gas condensing boiler of increased power with a turbocharged combustion chamber and a microprocessor control system that supports the connection of external control modules with the eBus bus. It is positioned as a product of the upper price category, aimed at demanding users who prefer reliable and durable climate solutions from time-tested European brands. The key feature of this model is increased energy efficiency, which is ensured by using the condensing principle of heat extraction from combustion products. Unlike traditional gas appliances, in the Vaillant ecoTEC pro VUW INT 346/5-3 boiler, flue gases undergo deeper cooling, which makes it possible to extract and usefully use the latent heat of condensation of water vapor. This technology makes...it possible to demonstrate 6-8% better energy efficiency, which has the most positive effect on gas company bills. The declared useful power of 28 kW is enough to organize the heating of a cottage, a large city apartment, a utility or office space with a total area of up to 224 m².
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Vaillant ecoTEC pro VUW INT 346/5-3 28 kW
Energy source:gas
Mount:wall, dual-circuit
Boiler power:28 kW, area ~ 224 m²
Combustion chamber:closed, flue 60/100 mm
DHW temperature:before 65 °С

Highly efficient German double-circuit gas condensing boiler of increased power with a turbocharged combustion chamber and a microprocessor control system that supports the connection of external control modules with the eBus bus. It is positioned as a product of the upper price category, aimed at demanding users who prefer reliable and durable climate solutions from time-tested European brands.

The key feature of this model is increased energy efficiency, which is ensured by using the condensing principle of heat extraction from combustion products. Unlike traditional gas appliances, in the Vaillant ecoTEC pro VUW INT 346/5-3 boiler, flue gases undergo deeper cooling, which makes it possible to extract and usefully use the latent heat of condensation of water vapor. This technology makes it possible to demonstrate 6-8% better energy efficiency, which has the most positive effect on gas company bills. The declared useful power of 28 kW is enough to organize the heating of a cottage, a large city apartment, a utility or office space with a total area of up to 224 m².

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All specifications
Specifications ecoTEC pro VUW INT 346/5-3
Main
Energy sourcegas
Installationwall
Typedual-circuit (heating and DHW)
Heating area224 m²
Condensing
Technical specs
Heat output28 kW
Power supply230 V
Power consumption70 W
Coolant min. T30 °С
Coolant max. T85 °С
Heating circuit max. pressure3 bar
DHW circuit max. pressure10 bar
Consumer specs
DHW max. T65 °С
"Summer" mode
Warm start
Circulation pump
Control buseBus
Boiler specs
Efficiency107 %
Combustion chamberclosed (turbocharged)
Flue diameter60/100 mm
Expansion vessel capacity8 L
Connections
Mains water intake3/4"
DHW flow3/4"
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)720x440x372 mm
Weight37 kg
Added to E-Catalogaugust 2014
FAQ: 10 frequently asked questions about heating boilersAnswers to common questions in the section "heating boilers"
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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