Vaillant ecoTEC plus VUW INT 346/5-5 34 kW
 | Expecting restock 73 893 ₴ Energy source: gas; Installation: wall; Type: dual-circuit (heating and DHW); Heating area (m²): 272; Condensing; Heat output (kW): 34; Coolant min. T (°C): 30; Coolant max. T (°C): 85; DHW max. T (°C): 65; Control bus: eBus; Efficiency (%): 108; Combustion chamber: closed (turbocharged) |
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Vaillant ecoTEC plus VUW INT 346/5-5 34 kW
Energy source:gas
Mount:wall, dual-circuit
Boiler power:34 kW, area ~ 272 m²
Combustion chamber:closed, flue 60/100 mm
DHW temperature:up to 65 °С
All specifications
Specifications ecoTEC plus VUW INT 346/5-5
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The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Vaillant 2025 - new arrivals, bestsellers, and the most relevant models Vaillant.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Vaillant 2025 - new arrivals, bestsellers, and the most relevant models Vaillant.
Series Vaillant ecoTEC plus (wall-mounted condensing)Compare using chart →
gas, condensing, power 20 kW, area ~ 160 m², wall, single-circuit, closed, heating: up to 160 m²
gas, condensing, power 14 kW, area ~ 112 m², wall, single-circuit, closed, heating: up to 112 m²
gas, condensing, power 21.7 kW, area ~ 174 m², wall, dual-circuit, closed, heating: up to 174 m²
gas, condensing, power 48 kW, area ~ 384 m², wall, single-circuit, closed, heating: up to 384 m²
gas, condensing, power 63.5 kW, area ~ 508 m², wall, single-circuit, closed, heating: up to 508 m²
gas, condensing, power 25 kW, area ~ 200 m², wall, single-circuit, closed, heating: up to 200 m²
gas, condensing, power 80 kW, area ~ 600 m², wall, single-circuit, closed, heating: up to 600 m²
gas, condensing, power 96.2 kW, area ~ 722 m², wall, single-circuit, closed, heating: up to 722 m²
gas, condensing, power 120 kW, area ~ 900 m², wall, single-circuit, closed, heating: up to 900 m²
Personally, I do not recommend installing vaillant ecotec plus vuw int 246/5-5 due to a problem with the gas valve. The official representation of vaillant gives a guarantee for only 12 months. And when, as in my case, something serious happens after 14 months, you will be forced to solve all your problems on your own. Very expensive. Any appeals to the official representation of vaillant will be ignored! Rabbit on the body unreliable for Ukraine use Vaillant ecoTEC plus VUW INT 246/5-5 more than year |
The boiler is condensing, which means that it can use the latent heat of gas combustion products, which ordinary gas boilers throw into the chimney. In a special chamber-heat exchanger, water vapor condenses from the flue gases, giving this heat to the coolant. True, a lot of acid condensate is formed in this case, but more on that below. Due to its high efficiency, the boiler produces a lot of heat with moderate gas consumption. But this is not only due to the use of latent heat. There is a special electronic system for mixing air and gas. This automation selects the optimal ratio of these two components and doses them to the burner. The burner, depending on the need for heat, can change the combustion force in the range from 20 to 100%. Such a combustion control system also adds a lot to efficiency. The boiler is made of high quality components and materials. What, for example, are heat exchangers made of heat-resistant and corrosion-resistant steel or a circulation pump with PWM control. The boiler is also equipped with a variety of sensors and protective systems. The manufacturer paid a lot of attention to safety. Stupid manufacturer's claims about 109% efficiency. Well, why consider consumers idiots? They would write either about “109% efficiency in terms of net calorific value” or just an honest figure of 97-98%. It cannot work stably on our constantly jumping voltage, the Germans did not foresee this. Therefore, immediately select a good stabilizer. Price. It is certainly good and will justify itself by saving gas, but it will be later. And you need to pay for it now and immediately. |
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