UltraGas^® 2 D (250 - 3100)

Two complete boilers communicate with one another via their TopTronic® E controller and split the job of providing heat between themselves. Both boilers run in partial load operation – an excellent, economical operating state – whereas one boiler operating alone would have to go full throttle, thus increasing consumption and shortening service life. If a boiler should ever fail unexpectedly, the second would temporarily take over and provide heat until its sibling was ready to go once more. "

"The UltraGas® 2 is an impressive product whose minor refinements have a major impact.

The innovative Hoval TurboFer® heat exchanger allows for operating temperatures of up to 95°C. It also has a specially developed heating surface that transfers heat even more effectively than other designs.
The separate high-temperature and low-temperature returns are another way to ensure cost-effective operation. This separation means the heating water is returned to the correct place in the boiler, thus producing optimum water-side temperature stratification inside it. Using the high-temperature and low-temperature returns makes the system more efficient.

A flow temperature sensor optimises operation of the heating system even further. This sensor records the precise flow temperature, enabling it to improve the control response. The through-flow is more constant and the return temperature is lower. The useful heat is utilised in the best way possible. This boiler’s increased efficiency and energy savings of up to 20% compared to a conventional gas boiler enable it to save the customer money. The investment is recovered in just a few years."

The Hoval UltraGas® series has been a success story for over 20 years, with owners all over the world appreciating its durability. The secret to its long life can be found in the high-quality stainless steel used on the water side. The UltraGas® 2 handles even large differences between the flow and return temperatures with no problem at all. Hoval provides an extended warranty for the boiler body, giving owners the confidence to make a long-term investment in a reliable design.

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. Alternative, sustainable energy sources, such as solar, pellets and heat pumps, are easy to integrate into the new generation of system boilers. All of these factors make the UltraGas® 2 a future-proof investment and reduce the CO2 emissions.

The TopTronic® E control also helps to make additional savings. Its wide range of functions include easy adjustment operating times to facilitate energy-conscious heating. The energy consumption display and the counter module help you to keep a permanent eye on costs. To allow for simple control while you are out-and-about and to enable you to receive system messages in real time, you can opt for various gateway modules for an Internet connection, the smartphone app and HovalConnect. The Hoval control system HovalSupervisor visualises, controls and monitors the operation of multiple UltraGas® plants. This enables you to optimise the energy production process, right through to the individual processes in the entire energy grid.