Vitodens 343-F
Gas condensing storage combination boiler
Gas condensing storage combination boiler with integrated 170 liter stainless steel hot water cylinder with indirect solar heat exchanger.
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Rated heating power: 1.9 - 19 kW
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Energy cabin
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DHW cylinder: 170 liters
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H₂ 20 % complete
Easy operation and WiFi interface
Particularly simple, intuitive operation and integrated WiFi interface
High convenience of hot water supply
Thanks to the built-in 170-liter hot water cylinder
Prepared for Solar Thermal System
Allows you to directly connect a solar thermal system
High operational reliability
Thanks to the built-in Lambda Pro Plus combustion controller
MatriX-Plus burner
Higher efficiency and less nitrogen oxides with the new MatriX-Plus burner
Energy cabin
All consumption figures at a glance with the energy cockpit
Guide to fluorescent luminaires
A fluorescent light guide allows you to always know if everything is working correctly
H₂ Ready
Future-proof: certified to burn natural gas with 20% hydrogen (H₂) content
Energy efficiency class: A
Energy efficiency class: A
Save and smooth
Save and smooth High level of efficiency for any gas mixture
Heating convenience in its most efficient form: Vitodens 343-F
A new generation of advanced heating systems. Efficient heat supply, highly convenient hot water supply, and configuration for connection to energy-saving solar technology. Plus: ease of operation, durability, and digital technology. This is the most advanced heating technology.
Future-proof: The Vitodens 343-F is an intelligent energy center that meets the most stringent requirements for heating efficiency and convenient hot water heating. The Vitodens 343-F is ready for connection to a solar thermal system . For combination with Vitosol solar collectors, now or in the future.
Economy and smoothness: high efficiency with any gas mixture
Modern Viessmann gas condensing boilers are equipped with the patented Lambda Pro Plus® combustion control system. It adapts your appliance to changing operating conditions, such as fluctuating gas quality or different gas types. Automatic control ensures consistently high system efficiency. Your contractor won’t have to reconfigure these boilers, and flue gas inspection intervals have been extended to three years. This saves time and money.
Equipment for the future
The technology that allows the use of mixtures of natural gas and hydrogen for heating buildings is already available and is available on the market in many thousands of cases. In principle, the latest generation of gas condensing boilers Vitodens 300 can already run on 20 percent hydrogen today. Therefore, house and apartment owners who choose these modern wall-mounted and compact appliances are ideally prepared for the future. Find out more about climate-neutral hydrogen heating.
Integrated range of solutions for Vitodens 343-F
Value-Added Services, Digital Services, Connectivity and Platforms
Viessmann Heat
Viessmann Wärme is our heating system rental service - ideal for those who want to enjoy superb heating comfort without having to buy a boiler.
Funding professional
The Viessmann FörderProfi service streamlines and simplifies the entire subsidy process, from application to payment.
The ViCare app
The ViCare app provides intuitive heating control. Green for go - the user can see at a glance in the app whether their heating system is working as it should.
The ViGuide app
ViGuide is an application for sales partners. It has numerous functions for monitoring and managing systems in both detached and multi-family houses, as well as providing quick access to the technical service.
Connection inside
Connectivity Inside is an integrated WiFi interface for system control and maintenance using Viessmann applications.
wibutler
wibutler is a manufacturer-independent smart home control centre that connects products from different manufacturers and enables their control and automation through apps.
Features of Vitodens 343-F
MatriX-Plus burner: the heart of your heating system
Among the outstanding advantages of the new MatriX-Plus burner are its efficient operation, quiet running and low emissions. The special stainless steel MatriX surface is resistant to high temperatures, which ensures reliable performance and long service life.
Lambda Pro Plus: Automatic combustion control reduces costs
Automatic combustion quality control compensates for fluctuations in gas quality and extends flue gas inspection intervals by up to three years. This ensures year-round efficiency and saves maintenance costs.
Switching from LL to P gas no longer requires access to a gas valve, thanks to Lambda Pro Control Plus. This is because the combustion controller is automatically adjusted to the appropriate type of gas. The same applies to the transition from natural gas to LPG. The following video shows how it works.
Inox-Radial Stainless Steel: Efficient and Durable
Stainless steel goes the extra mile. The corrosion-resistant Inox-Radial stainless steel heat exchanger is at the heart of the Vitodens 343-F. It converts the consumed energy into heat very efficiently. Virtually loss-free and with an almost unbeatable efficiency of 98 percent. In addition, high-strength, high-quality stainless steel ensures reliability.
Design Award for Vitodens 343-F
The new Vitodens 343-F wins the iF Design Award.
The Vitodens 343-F control unit is clear and intuitive
Energy cabin: simple settings and controls increase work efficiency
How easy are the settings and controls? These are some of the key criteria to consider when choosing a new heating system. The Vitodens 343-F is exceptionally easy to use. The condensing boiler can be easily and intuitively controlled via a smartphone or tablet, as well as directly via the large 7-inch color touchscreen. Plain text and a graphic display help you navigate all menu options. And with the energy cabin, you can see all energy consumption data at a glance.
Built-in WiFi: Heating convenience goes digital
A built-in WiFi interface connects the wall-mounted gas condensing boiler directly to the internet, providing easy access to network and digital services as needed. The ViCare app makes the appliance even easier to operate: all heating functions are at your fingertips. In the event of a problem, the service application directly informs the contractor, who can quickly take corrective action.
Video: ViCare App
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