


Atmospheric gas-fired boiler in a sectional cast iron design with stainless steel premix burner.
Rated input: 90 to 240 MBH - 26 to 70 kW
Top performance in a small package. Thanks to its compact dimensions, the Vitogas 100, GS1 is ideal for installation in small rooms and alcoves. Apart from saving space, the Vitogas 100, GS1 is economical in terms of its energy consumption with reduced emissions.
The benefits at a glance:
- High operational reliability and a long service life thanks to its construction of special high-grade cast iron with lamellar graphite and a low thermal load on the heat exchanger surface.

Special gray cast iron heat exchanger surface - Clean combustion due to atmospheric premix burner with super-stoichiometric premixing: NOx < 27.9 ppm (air-free), CO < 9.2 ppm (air-free). Vitogas 100 hereby meets the specifications of the German "Blue Angel" environmental certificate, Swiss Clean Air Regulations and California Regulations (SCAQMD).
- Economical and environmentally friendly operation. AFUE: up to 85.6% (natural gas and propane gas).
- Intermittent ignition system provides soft, quiet and extremely reliable ignition.
- Compact dimensions - therefore suitable for installation in a boiler room, a utility room or even in an open living area.
- Low weight and compact design permit easy transportation to the installation location.





















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