Telford Lightning 12 kW Electric Boiler - Tempest 300 Litre Unvented Indirect Pre Plumbed Cylinder Package


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UK Manufacturing at its best, the Telford Tempest is Telford's flagship cylinder made from some of the highest grades of stainless steel on the market today, up to 40% thicker than some products.

The Lightning electric boiler system is particularly suited to smaller properties where space is limited or where electricity is the only available heat source. Manufactured from Duplex stainless-steel, the cylinders are pre-plumbed with pre-fabricated pipework and wiring.

A factory-fitted 3 kW immersion heater provides back-up heat and the option of heating water on different schedules, tariffs and configurations.

  • Complete domestic heating & hot water package solution
  • Lifetime Cylinder guarantee
  • Easy to install, space-saving option
  • Fully modulating electric boiler with bespoke PCB
  • 99.8% efficient, Replaceable elements, Self-diagnostic checking
  • Soft switching to preserve element life and prevent interference
  • Resettable thermal safety cut-out
  • Suitable for new build & renovation projects
  • 316L grade stainless-steel 22mm compression fittings and coils
  • 2 years guarantee on components
  • High density insulation
  • Treated to protect against corrosion

  • Cylinders come Pre Plumbed with all necessary pipework and include:

  • 8 metre Circulating Pump ( Installed )
  • Zone valves x 2
  • 2 CH Programmer
  • 10 way wiring centre
  • 10 way junction box
  • Factory-fitted 3kW immersion heater
  • Temperature & Pressure Relief on the cylinder
  • £3,415.00
    In stock
    SKU
    LIGHTNING12-TSMI300/SPLAN
    Out of stock
    More Information
    BrandTelford
    Cylinder ModelTelford Tempest
    Product TypeHot Water Cylinder
    Cylinder TypeElectric Indirect Pre Plumbed
    Horizontal / VerticalVertical
    Cylinder Volume (approx)300 litres
    Manufacturer Product NumberLIGHTNING12-TSMI300/SPLAN
    Product Height (Approx mm)1650
    Product Diameter (Approx mm)Cylinder 580 ( + approx 170mm with Boiler & Pipework )
    Electric Element Rating (kW)12kW Boiler - 1 x 3kW Cylinder backup
    Electric Boiler kW ( Approx )12
    Warranty ( Years )Lifetime on Cylinder / 2 years on Components
    Delivery (Approx Working Days)Postcode Dependant - Contact Us
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