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The Tanium EON range, from 60 to 280 kW, comprises modulating condensing boilers, patented and manufactured entirely by Cosmogas.
Designed to take up minimal space, its vertical configuration optimises heat output according to actual heat demand and ensures maximum efficiency at all times, even in confined spaces.
Tanium EON can be installed in a daisy-chain configuration of up to four units using the TUTORbit daisy-chain controller or any other 0–10 V sequencer.
Product category: Modulating condensing boiler, 60 to 280 kW
Output: 60 - 70 - 100 - 115 - 140 - 180 - 210 - 280 kW
Suited for: Residential Central Heating, Commercial, Industrial, Service Industry
Connectivity: Remote cascade sequence control via TUTORbit




Tanium EON is designed for new installations and refurbishment projects in confined spaces. Its excellent power-to-weight ratio and compact footprint (600 × 700 mm) allow high power outputs to be concentrated within a minimal footprint, making it easy to transport and install even in challenging operating conditions.
Its compact dimensions allow it to pass through doors 65 cm wide.

The patented R.V.C. (Radial Variable Circulation) heat exchanger is the heart of Tanium EON, developed through 60 years of Cosmogas experience, research and testing.
To withstand the aggressive combination of high flame temperatures and water chemistry, the tubes directly exposed to the flame (first flue gas passage) are made of Titanium Grade 2, while in the second and third passages, where heat is reduced and corrosion is less severe, the Cosmogas heat exchanger is made of reliable AISI 304L Stainless Steel.
The three-coil, weld-free design preserves the intrinsic properties of both Titanium and stainless steel, ensuring outstanding resistance to corrosion, reaching an optimal exchange along the entire surface and delivering thermal efficiency up to 98%.

Cascade burner management enables linear and progressive modulation of output.
Burners are activated only when needed and in a coordinated sequence, ensuring consistent comfort, reduced energy consumption, and efficient operation under all load conditions.

Tanium EON delivers significant energy savings throughout the entire heating season.
By maintaining high efficiency even during shoulder seasons, the system can reduce gas consumption by up to 35% compared to a traditional boiler.

When power demand is limited, Tanium EON continues to operate with high efficiency, a condition that represents a large portion of annual system operation.
The wide turndown ratio, up to 1:20, allows the system to supply only the required output, avoiding on-off cycling and improving overall seasonal efficiency.

Tanium EON can be installed in cascade sequence up to four units by using TUTORbit cascade manager or any other 0-10V cascade sequencer. TUTORbit manages modulation from the minimum output of a single boiler up to the maximum output of four units, ensuring uniform operation and equal service life.
Boilers can be installed side by side with a minimum spacing of just 10 cm, allowing the system to occupy the smallest possible floor area and the front-access design ensures quick and easy maintenance.

Tanium EON comes as standard with:

Designed and developed entirely in Italy, this next-generation touchscreen is more than a display, it’s a smart control unit, engineered to manage every aspect of the system with clarity and precision.
Control and monitor:




Are you a professional? Find the technical documentation about this product in the Professionals section.