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EnergyPro™ cylinders

Nu-Heat's EnergyPro™ indirect unvented cylinders are designed for use with oil or gas boilers; they are factory-fitted with an electric element to backup the water heating system for short, intermittent periods.

Cylinders in Nu-Heat’s EnergyPro™ range meet all relevant UK and European standards and are covered by a 25-year warranty.


  • Lightweight all-stainless-steel construction
  • Pressure tested to 10bar
  • Insulated in excess of the requirements of Part L, using CFC- and HCFC-free fire-retardant foam with a Global Warming Potential of 2.8, and Ozone Depletion Potential of Zero
  • Smooth-walled coils for good heat transfer and low pressure drop
  • Supplied complete with connection fittings, and G3 equipment comprising inlet group, tundish, temperature and pressure relief valve (factory fitted) and wholesome water expansion vessel
  • Optimum connection positions at the front of the unit for ease of installation, easy access and minimal space requirements
  • Connection for optional EnergyPro™ Hot Water Loop
  • Powder-coated case


 200  300
 Total storage capacity  200 litres  300 litres
 Heat loss at 65°  81W  92W
 Cylinder weight when full  240kg  353kg
 Boiler coil surface area  0.67m2  0.77m2
 ErP energy efficiency class  C  C


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