Ultraflow 90 Litre Unvented Indirect Cylinder


Free Delivery – Price Match

The Ultraflow brand has been designed with efficiency and the environment in mind. Each cylinder comes supplied with full ErP and technical data labelling, so both the homeowner and installer are aware of the performance criteria met by their cylinder.

All Ultraflow Hot Water Cylinders are meticulously manufactured, and are tested where appropriate for quality to the details found in BS EN 12897:2006 and 2897:2016. Most products also come with full WRAS approval, and test results verified as part of the Building Regulations certification by NSF labs, to ensure part L and G3 conditions are met.


  • Fully insulated with 50mm insulation to minimize heat loss
  • Manufactured from high grade ‘Duplex’ stainless steel for superior corrosion resistance
  • Highly efficient coil to minimize reheat time & save fuel bills
  • 25 year warranty on cylinders and 2 year on parts. See product brochure for more information.
  • High quality 3kW incoloy immersion heater
  • Secondary return on 200 Ltr and above Std Cylinders

Cylinders come complete with high quality Unvented Kit which includes:

  • Inlet Control Set
  • Temperature and Pressure Relief Valve
  • Tundish
  • Expansion Vessel
  • 1 x 3kW Standard Immersion Heater
  • Two port valve
  • HIGH QUALITY single high limit thermostat
  • Mechanical Dual Cylinder thermostat
  • Temperature & pressure relief valve insulation cover

Connection Sizes:

  • 3/4" comp: - Hot Draw, Cold Feed, Sec Ret(when fitted) & Coil Conns
  • 1 3/4" F: - Immersion(s)
  • 1/2" F: - T & P relief valve

Upgrades available on request:

  • Highflow cyl with 1” hot and cold conn & 28mm inlet group
  • 6kW incoloy, 3kW or 6kW titanium immersion
  • Extra Immersion(s)
  • Bigger coil for High Gain / Quick Recovery
£585.00
In stock
SKU
UI90
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More Information
BrandUltraflow
Cylinder ModelUltraflow
Product TypeHot Water Cylinder
Cylinder TypeIndirect
Horizontal / VerticalVertical
Cylinder Volume (approx)90 litres
Manufacturer Product NumberUI90
Shipping Weight (kg)22
Full Weight (kg)92
Product Height (Approx mm)727
Product Diameter (Approx mm)545
Electric Element Rating (kW)1 x 3kW
Warranty ( Years )25 year guarantee on basic vessel subject to T&C's* / 2 years on Components
Delivery (Approx Working Days)2 - 5
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