Jo & Company

Breathing New Life Into Boiler Manufacturing

Small is Beautiful

The CSI 120 Low NOx Combi is a 5kW to 32kW boiler that complements our existing range, producing extremely low levels of NOx, well below UK standards, with a 3 year guarantee and at just 700 x 400 x 300 mm.

The CSI 120 low NOx is a pre mix high efficiency condensing boiler with a domestic hot water flow rate of 15.4 l/m at 30°C.

  • Reduce heating bills by up to 35%
  • Available with 7 day digital timer as standard
  • 98% boiler efficiency, why burn fuel when you can save it
  • Designed and manufactured in accordance with ISO 900
  • Compact size for maximum space saving
  • 5 year heat exchanger warranty
  • 3 Year Guarantee

Wide Range of Innovative Features

The highly efficient boiler is armed with a wide range of innovative features. The controls are easily accessible under the lift up flap.

The CSI 120 Low NOx (T) is easy to install and there is easy access to all major components for servicing. Valves, an integral part of the boiler are more compact and sit close to the wall. They are also colour coded making it easier and quicker to install

Extremely Reliable Gas Boilers

Ravenheat is proud of its track record in producing extremely reliable gas boilers. Built to exacting ISO 9001 standards using quality components, all boilers carry the European CE mark. Each Ravenheat appliance undergoes a rigorous testing and operating procedure before being carefully packed for maximum protection, ready to leave our factory.

More efficient means reduced emissions

With depletion of the rain forests and commitments by governments worldwide to a reduction in green house gas emissions, its good to know we are playing a part in cutting fuel consumption, and saving you, the customer money on your heating bills.


Technical data:
Technical CSI 120






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