Vaillant ecoTEC plus VUW INT 246/5-5 21.7 kW (0010021965)
 | 51 500 ₴ Buy!  Конденсаційний котел Vaillant ecoTEC plus VUW INT 246/5-5 HInstrumentarium.ua6 year with us (Kyiv) Report |
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Vaillant ecoTEC plus VUW INT 246/5-5 is a fairly advanced gas boiler that can provide both efficient space heating and constant hot water supply. The useful power of this modification is 24 kW, the manufacturer recommends using it for rooms up to 192 m2. Closed combustion chamber, maximum hot water temperature — 65°C, a special summer mode of operation is provided, the operating power is adjustable in the range of 20-100%. However, the main advantage of the model is that it is a condensing boiler — the average efficiency for the heating season is 108%. A classic set of necessary protection systems has also been implemented.
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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.
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. |
150 years of experience and tradition
The German company, which has been specializing in products for heating and hot water supply for almost a century and a half, offers in this segment an advanced double-circuit boiler Vaillant ecoTEC plus VUW INT 246/5-5, which completely solves the problem of providing heat to residential and non-residential premises with an area of 174 m2. The device is suitable both for installation in new buildings under construction, and for installation in reconstructed premises. The manufacturer assures that the heater, subject to the rules of installation and operation, will last at least 10 years. This is a 21.7 kW wall-mounted model with a closed combustion chamber, capable of operating in summer (hot water only) and winter (heating + DHW) mode. The device, in addition to direct combustion of fuel, uses the latent thermal energy of gas condensate, allowing you to get an average efficiency of about 108% for the heating season. The maximum temperature in the heating circuit is 85 °C and hot water can be heated up to 65 °C.
Low NOx content in the "exhaust"
The model is equipped with a modulating gas burner with a power adjustment range of 20 – 100%. The electronic pre-mixing system automatically prepares the optimal proportion of gas and air, which ensures a low NOx content (up to 20 mg/kWh) in the combustion residues. The heating unit is equipped with a stainless steel primary heat exchanger, a DHW plate heat exchanger and a 2-stage circulation pump. In addition, the device received a complete set of hydraulic piping elements, including a siphon for collecting gas condensate and an expansion tank of 10 liters. An integrated security system controls the continuous burning of the flame, monitors the pressure of gas and coolant, and also monitors critical temperatures (protection against overheating and freezing) and draft in the exhaust duct.
Compatible knobs for advanced control
Thanks to the built-in eBus communication bus, the device has the ability to connect a remote control unit. In addition, it can optionally be supplemented with compatible controllers that expand the control and monitoring of heating and DHW systems. So the wall-mounted room thermostat VRT 50 with a display solves the problem of controlling the boiler plant by the room temperature, and the eRELAX controller with the eBus bus allows local and remote control of the boiler via the Internet. The automatic weather-compensated heating controller multiMATIC VRC 700/6 is used for the integrated control of the entire heating system with support for 9 heating circuits, while the more sophisticated controller auroMATIC 620 is designed to control a heating system with solar collectors and can support systems with 12 heating circuits. The capabilities of the heating boiler amaze and impress just like the “space” price for it. But there's nothing you can do about it — high technologies cost a lot.
