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Sirius three is our most comprehensive range yet of 15 wall-hung and floor-standing boilers. From major public sector projects, to high-end development, Sirius three has got you covered.
Our Sirius three has one of the lowest NOx ratings on the market, is ErP compliant, highly-efficient and performs to the highest of standards.
With modulation ratios up to 9:1 every boiler delivers flexible, controllable power.
The Sirius three range includes the following products:
With a uniquely broad range of options from 50-250kW, there’s an efficient boiler for every installation; all covered by our 5-year warranty*.
*see terms and conditions
Light wall-hung, stainless steel condensing boiler
Output50kW-150kW
Dry weight40kg-96kg
Flue connection size80/125 - 110/160
CascadeUp to 700kW
Compact floor-standing, stainless steel condensing boiler
Output50kW-250kW
Dry weight60kg-232kg
Flue connection size80/125 - 150
CascadeUp to 1MW
Floor-standing, stainless steel condensing boiler
Output440kW/525kW
Dry weight359kg/ 424kg
Flue connection size180
Contact your Area Sales Manager to get a quote for assistance with the Sirius three range.
