Modern gas heating - resource efficiency with condensing technology
Condensing technology not only utilises the heat generated by combustion as a measurable temperature of the hot gases (net calorific value), but also the water vapour content (gross calorific value). Condensing boilers are able to extract almost all of the heat contained in the flue gases and to convert it into heating energy.
Condensing boilers use high performance heat exchangers. These cool the flue gases before they escape through the chimney, to the extent that the water vapour contained in these gases is deliberately condensed. This releases additional heat which is transferred into the heating system.
With this technology, a gas condensing boiler achieves a standard seasonal efficiency [to DIN] of up to 98 % (relative to Hs). Condensing boilers are therefore particularly energy efficient, looking after both your wallet and the environment.
Calorific value (Hs)
The gross calorific value (Hs) defines the amount of heat released by complete combustion including the evaporation heat latent in the water vapour of the hot gases.
The MatriX gas burner
The MatriX gas burner represents a milestone in Viessmann heating technology. The use of the stainless steel MatriX gauze endows it with a long service life. The burner is resistant to high temperature loads.
Wall mounted gas condensing boiler, system boiler: 3.2 to 150 kW, in cascades up to 600 kW, combi boiler: 5.2 to 35 kW, detached and two-family houses, apartment buildings, flats in an apartment building, commerce, new build and modernisation projects
Gas condensing storage combi boiler with loading cylinder or DHW cylinder with internal indirect coil, 3.2 to 35 kW, DHW cylinder: 100 or 130 litres, detached and two-family houses, flats in an apartment building, new build and modernisation projects
Gas condensing storage combi boiler with integral solar cylinder, 3.2 to 26 kW, DHW cylinder: 170 litres, detached houses, new build and modernisation projects
Vitocrossal 300 CT3B
Type CT3B, gas condensing boiler, rated heating output: 187 to 635 kW, apartment buildings, large residential buildings, commerce, municipal offices, new build and modernisation projects
Vitocrossal 300 CR3B
Type CR3B, gas condensing boiler, rated heating output: 787 to 1400 kW, large residential buildings, commerce, municipal offices, new build and modernisation projects