The Potterton Sirius Wall Hung 60 kW commercial boiler is lightweight and small, making installation simple. Delivering dependable and energy efficient heat transfer while extending boiler lifespan, this product has a stainless steel heat exchanger and the industry's best modulation ratio of 9:1.

• Compact and lightweight stainless steel condensing boiler
• Gross seasonal efficiency up to 97.3 percent
• Lightweight stainless steel heat exchanger for reliable and energy efficient heat transfer
• Supplied with the latest Siemens controls with state of the art printed circuit board, offering improved control options
• An integrated cascade function allows up to 16 boilers to be managed by the siemens controller
• Programmable to work with solar thermal, biomass and buffer tanks
• Wide 9:1 modulation ratio reducing constant on and off cycling to improve efficiency and boiler longevity
• 0 - 10 volt connection provides a quick and simple interface with Burner Management System
• The QA75 twist knob controller has a simple descriptive display and easy to use advanced programming functions
• Lowest NOx ratings on the market