The Ultrapower sxi system boiler

Highly commended by SEDBUK for being the most efficient boiler in the UK market, the Ultrapower sxi system boiler gives you outstanding performance, saving energy, reducing your carbon footprint and lowering your fuel bills.

Designed specifically for larger homes, the Ultrapower sxi will keep up with even the most demanding of families. As soon as you turn the tap you can be confident that the Ultrapower sxi will deliver endless hot water 365 days a year, thanks to its innovative inbuilt storage system, fast reheat times and combi back-up.

Key features

  • SEDBUK A rated with NOx Class 5 rating - the best possible
  • The Ultrapower sxi system boiler is most efficient boiler available in the UK
  • Available in 100 or 170 litre models
  • No need to wait for hot water with a 5 second response*
  • On board diagnostics for superior reliability
  • Easy to use inbuilt programmer
  • LPG compatible without conversion kit
  • Inbuilt frost protection
  • Back up immersion heater
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Model Ultrapower 100 sxi Ultrapower 170 sxi
Dimensions (mm) (h-w-d) 1260mm x 575mm x 600mm 1520mm x 575mm x 600mm
Weight (Boiler module) 50.5Kg
Weight (Tank module) 39.0Kg 48.0Kg
CH Output (kW) Min / Max 8.7 / 24.3
DHW Output (kW) Min / Max 8.7 / 31.0
DHW Response 5 second water response*
DHW Flow Rate l/min 35°C rise 12.5
SEDBUK Rating A
SEDBUK % 91.1
User Display Digital
Diagnostics Advanced
CH Controls User adjustable CH control

CH = Central Heating, DHW = Domestic Hot Water

*Measured at a tap 1m from the boiler.