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  • Solar Hot Water
    • On-roof Panel Systems (Navitas)
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    • Navitas In-roof Collectors
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    • Solar Pipe & Fittings
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      • Solar Pump - Dual Line
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    • Solar Controllers
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  • Copper Cylinders & Stores
    • Copper Vented Grade 3 Cylinders
    • Copper Vented Grade 2 Cylinders
    • Copper Vented Solar Cylinders
    • Copper Un-Vented Cylinders
    • Copper Buffer Stores
    • Copper Stratification Thermal Store
    • Technical & Engineering Specification
  • Stainless Cylinders & Stores
    • Cyclone Quick Recovery Vented
    • Cyclone Tank in Tank Eco
    • Cyclone Thermal Stores
    • Cyclone Direct Un-Vented
    • Cyclone Direct Solar Un-Vented
    • Cyclone Indirect Un-Vented
    • Cyclone Twin Solar Un-Vented
    • Cyclone Triple Coil
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    • Cyclone HeatPump Un-Vented
    • Cyclone Horizontal Un-Vented
    • Cyclone Stainless Steel Buffer Stores
    • Cyclone Mild Steel Buffer Stores
    • Cyclone Mild Steel Hot Water Calorifier
    • Cyclone Stainless Steel Hot Water Calorifier
    • Cyclone Heat Pump/Buffer
  • Logstor Low Loss Piping
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Joule is the UK's leading manufacturer of copper and stainless steel hot water cylinders. Joule’s solar packages have the prestigious IAB (Agrement) Certificate & Solar Keymark on all collectors. Joule’s solar packages are manufactured from high grade weather resistant materials. Joule’s in house engineers have extensive experience in assisting you in the design of your individual solar package to suit your needs. Joule’s state of the art modern  manufacturing facility offers our customers detailed product traceability  from order through to the manufacturing process, right up to delivery. Through our extensive R&D program we have developed and tailored our product range to make it the most sought after solar and cylinder brand on the market today.