Oil Condensing Technology: How It Works
How does oil condensing technology work in detail, and why is it a sensible option? Find out here!
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Vitoladens 300-T
Oil Condensing Boiler
The world’s best-selling condensing oil boiler for detached homes and multi-family buildings, as well as small commercial enterprises.
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Rated heat output: 35.4 - 53.7 kW
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Standard seasonal efficiency [according to DIN]: up to 97% (Hs) [gross cv].
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Energy efficiency class A
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All types of commercially available low-sulfur fuel oil can be used
Your local Viessmann sales partner will provide you with individual advice
Oil Condensing Boiler
Power range from 35.4 to 53.7 kW
Standard Seasonal Efficiency [DIN]
Standard seasonal efficiency [according to DIN]: up to 97% (Hs) [gross cv].
Easy access to heat exchanger surfaces
Convenient for cleaning
Silent operation
Thanks to the built-in silencer
Vitoconnect Web Interface
For operation and maintenance via Viessmann apps (accessories)
Energy efficiency class
Energy efficiency class: A
Vitoladens 300-T oil condensing boiler and Vitocell hot water cylinder
Oil condensing boiler Vitoladens 300-T
The Vitoladens 300-T is an oil-fired condensing boiler with a particularly attractive price. This floor-standing condensing boiler offers exceptional operational reliability and a long service life.
It uses valuable fuel oil economically, and the use of high-quality materials and proven components keeps maintenance costs to a minimum.
With a power range of 35.4 to 53.7 kW, the Vitoladens 300-T covers a wide range of applications – from detached houses and multi-family buildings to small commercial enterprises.
Integrated range of solutions for Vitoladens 300-T
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.
Vitoconnect
Vitoconnect is the interface between the boiler and the app - a prerequisite for controlling the heating system via smartphone and tablet. It also enables remote system maintenance for contractors via the Vitoguide app.
Features of Vitoladens 300-T
The Vitoladens 300-T is equipped with Viessmann technology, proven millions of times and ideal for new construction and retrofit projects. These include the long-lasting biferral composite heating surface and the corrosion-resistant Inox-Radial stainless steel heat exchanger.
In addition, it is characterised by flexible positioning thanks to the possibility of sealing the room or working with an open chimney, as well as the easy-to-operate Vitotronic control unit with text and graphic display.
The Vitoflame 300 Unit blue flame oil burner is synonymous with particularly clean, environmentally responsible and efficient combustion. It can be used with all commercially available EL fuel oils. Also for fuel oil in accordance with DIN 51603-6-EL A Bio 10: low-sulphur fuel oil EL with a mixture of up to 10% biocomponents (FAME).
This boiler does not have to be hidden in an ordinary boiler room. Vitoladens 300-T fits easily in the corner of a basement or utility room. Thanks to its compact dimensions of only 1585 x 667 x 934 mm (LxWxD), the condensing boiler can be installed in places where space is limited.
Like every Viessmann oil condensing boiler, the Vitoladens 300-T can be successfully combined with a DHW cylinder. Several suitable models are available, including the Vitocell 100-H and Vitocell 300-H.
For more information, see: Viessmann Vitocell DHW cylinders.
Inox-Radial stainless steel heat exchanger installed
The Vitoladens 300-T two-stage heat recovery consists of a proven biferral composite heating surface and an Inox-Radial heat exchanger made of corrosion-resistant stainless steel installed downstream of the boiler.
This design ensures that combustion and condensation occur in physically separate locations so that the combustion products condense in a deposit-free location. In practice, this means longer than average service intervals for cleaning the combustion chamber and significantly lower maintenance costs.
Inox-Radial stainless steel heat exchanger
The Vitoladens 300-T control unit is clear and intuitive
Contractors and users alike benefit from the easy-to-use Vitotronic control unit: Its menu structure is logical, clearly articulated and illuminated, contrasting and easy to read.
In case of doubt, the assistance function informs the user about further actions. The graphical user interface can also display heating curves.
Online with Vitoconnect
The Optolink interface allows you to connect directly to the Vitoconnect Internet interface to connect the Vitoladens boiler to the Internet. With the ViCare app, you can conveniently control the heating system via your smartphone.
Upgrades of the earlier Vitoladens series (built in 2004 or later) and Vitorondens series oil condensing boilers to 35 kW (built in 2004 or later) are possible at any time.
Product details
| Power in kW |
35.4 – 53.7 kW. Type VW3B 11/2018: Output stages: 35.4, 42.8, 53.7 kW |
|---|---|
| Standard Seasonal Efficiency [DIN] |
97 % (Hs) [gross cv] |
| Energy efficiency class |
A |
| Fuel |
All types of commercially available low-sulphur fuel oil can be used, including fuel oil DIN 51603-6-EL A Bio 10: Low-sulphur fuel oil EL with an admixture of up to 10% bioconstituents (FAME). |
| Applications |
Oil heating in detached houses, semi-detached houses and apartment buildings, as well as in commercial buildings | New Construction and Modernization Projects |
| Surgery |
Vitotronic 200 control unit with text and graphic display; can be controlled via the ViCare app |
| Hot water heating |
To ensure a high level of DHW convenience, an additional DHW cylinder is required |
| Additional features |
Inox-Radial downstream self-cleaning stainless steel heat exchanger for condensing technology |
| Product cross-section |
|
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