TopGas^® combi 5,9-27,1 kW

Low-cost gas condensing boiler for heating, with built-in hot water generation. Wall-mounted, continuous output adjustment, with basic controller.

The TopGas^® combi (21/18,26/23,32/28) wall-mounted condensing gas boiler offers the highest level of heating technology in reliable Hoval quality, even for the smallest rooms.

Direct DHW production is achieved by a second copper coil built into the boiler.

Suitable for the following fuels: natural gas, propane according to DIN 51662 and biomethane according to EN 16723.

The heat exchanger of the TopGas® combi is made of high quality aluminium silicone on the exhaust side and copper on the water side. The thermal conductivity of aluminium is ten times that of stainless steel. The comprises a fan-premix unit, which also controls the output, and the grid burner. In the fan-premix unit, a finely-tuned, homogeneous gas/air mixture is produced, which is optimised for the subsequent combustion.

Hoval gas condensing boiler technology uses heat energy 15% more efficiently than the latest generation of low-temperature boilers.

Range of applications: flats, single family homes - for new buildings and renovations.

Advantages:

■ Built-in water heating saves space

■ Generate heat and hot water for a low cost

■ Speedy hot water supply