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UltraGas 2: The new benchmark

UltraGas 2: The new benchmark

The UltraGas 2 is Hoval’s latest generation of gas condensing boilers for heating and hot water generation, available with output ratings from 125 kW to 1550 kW.

Based on the first generation of UltraGas condensing boilers – which have been tried and tested for many years – the successor model boasts a patented TurboFer heat exchanger for even greater efficiency, combined with a future-proof and compact design, setting the new benchmark in large-scale renovation and new-build projects.

New TurboFer heat exchanger: The patented core component for enhanced cost efficiency

The TurboFer is the brand-new, patented core component of the boiler. The unique design of the heat exchanger and its special injection technology generates turbulence on the heating gas side, increasing heat transfer and boosting efficiency. In combination with other UltraGas features, such as high and low temperature return flow, a large water capacity, the Ultraclean combustion system and the TopTronic E system controller, the TurboFer heat exchanger guarantees an optimum condensing performance.

The UltraGas 2 is easy to combine with any type of heat generator.

The efficient UltraGas 2 is designed for easy integration into existing systems. “This reduces the customer’s initial investment and enables them to reduce operating costs by up to 20 percent compared to conventional boilers”, explains Günther Köb, Product Manager of Gas and Oil Heating at Hoval.


Like all Hoval products, the UltraGas 2 was built to last, with the motto “ready for future” in mind. Each individual component and material was designed and selected for a long service life – which is why we opted for high-quality stainless steel on the hot water side. This promise is supported by an extended warranty on the boiler body. “The gas boiler can also operate on biomethane and hydrogen, equipping it for the ongoing energy transition from gas to biomethane and for a hydrogen-powered future”, says Günther Köb. Alternative, sustainable energy sources, such as solar, pellets and heat pumps, are also easy to integrate into the new generation of system boilers. “This means that the UltraGas 2 already satisfies the requirements of future legislation, making our new gas condensing boiler just as environmentally friendly as a heat pump. All of these factors make the UltraGas 2 a future-proof investment”, Köb continues.

Compact and lightweight for maximum ease of installation

When designing the new generation of boilers, ensuring that the UltraGas 2 would be as easy as possible to install was high on the agenda. There is no need for system components such as a circulating pump or a hydraulic separator. The optimised TurboFer heat exchanger results in an even more compact and lightweight design. “This makes the boiler easier to transport and means that it takes up significantly less space in the boiler room. Installation and commissioning is effortless, and servicing and maintenance can be completed with ease”, explains Günther Köb. UltraGas 2 models up to 450 kW are less than 800 mm wide, making them compact enough to fit through any standard door. Larger models take up just half the space of other gas condensing boilers. This makes the UltraGas 2 the perfect choice for large-scale renovation and new-build projects.

The latest generation of system boilers from Hoval will be available from 1 April or 1 July 2021, depending on the model. 

About Hoval:

As a specialist in heating and climate technology, Hoval is your experienced partner for system solutions. For example, you can heat water with the sun’s energy and your rooms with oil, gas, wood or a heat pump. Hoval ties together the various technologies and also integrates room ventilation into the system. You can be sure to save both energy and costs while protecting the environment. Hoval is one of the leading international companies for indoor climate solutions. More than 75 years of experience continuously motivate us to design innovative system solutions. We export complete systems for heating, cooling and ventilation to more than 50 countries. We take our responsibility for the environment seriously. Energy efficiency is at the heart of the heating and ventilation systems we design and develop.




Rolf Außerer

Head of Group Marketing