Biasi - Hydras Unvented, Direct, Indirect and Solar Cylinder Spares

Biaso’s Hydras Unvented Cylinders are available in 4 different types that suit all domestic installations including installations of renewable energy systems such as solar panels. They offer a direct range, which heats the water inside via an electric element inside the cylinder and an indirect range which relies on a secondary heat source such as a boiler to heat the water but still has an electric element for back up. They also have Solar Direct and Solar Indirect Cylinder options which allow for connections of solar collectors as another source of heat to the Cylinder. Cylinders are guaranteed for 25 years and accessories are guaranteed for 1 year. There’s a range of sizes to suit all homes, the smallest cylinders being 125 litre and the largest 300 litres. Unvented Cylinders are particularly useful for serving multi bathroom properties where instant hot water is required at improved flow rates. The hydras range of unvented cylinders are compact, affordable and easy to install.

Downloadable PDF Installation and Servicing Manuals can be found below:

Biasi Hydras Installation Manual

12 items

  • Biasi - 1 Meter Length Expansion Vessel Hose

    Biasi – 1 Meter Length Expansion Vessel Hose

    SKU: BI-10-24
    EXCL. TAX £12.48 INCL. TAX £14.97
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  • Biasi - 12 Litre Expansion Vessel

    Biasi – 12 Litre Expansion Vessel

    SKU: BI-26-23
    EXCL. TAX £38.93 INCL. TAX £46.71
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  • Biasi - 14" 3kw Immersion Heater

    Biasi – 14″ 3kw Immersion Heater

    SKU: BI-40-1
    EXCL. TAX £19.56 INCL. TAX £23.47
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  • Biasi – 15mm x 22mm Straight Plastic Tundish

    SKU: BI-10-9
    EXCL. TAX £10.73 INCL. TAX £12.87
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  • Biasi - 18 Litre Expansion Vessel

    Biasi – 18 Litre Expansion Vessel

    SKU: BI-26-24
    EXCL. TAX £33.31 INCL. TAX £39.97
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  • Biasi - 2 Port Motorised Valve

    Biasi – 2 Port Motorised Valve

    SKU: BI-25-2
    EXCL. TAX £42.31 INCL. TAX £50.77
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  • Biasi - 24 Litre Expansion Vessel

    Biasi – 24 Litre Expansion Vessel

    SKU: BI-26-22
    EXCL. TAX £34.56 INCL. TAX £41.47
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  • Biasi - 3 & 6 Bar Inlet Control Group

    Biasi – 3 & 6 Bar Inlet Control Group

    SKU: BI-38-1
    EXCL. TAX £94.39 INCL. TAX £113.27
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  • Biasi - 7 Bar Temperature & Pressure Relief Valve

    Biasi – 7 Bar Temperature & Pressure Relief Valve

    SKU: BI-7-4
    EXCL. TAX £51.00 INCL. TAX £61.20
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  • Biasi - Control & Limit Thermostat

    Biasi – Control & Limit Thermostat

    SKU: BI-38-2
    EXCL. TAX £24.31 INCL. TAX £29.17
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  • Biasi - Control Thermostat with Control Knob

    Biasi – Control Thermostat with Control Knob

    SKU: BI-4-16
    EXCL. TAX £42.38 INCL. TAX £50.86
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  • Biasi - Solar High Limit Thermostat

    Biasi – Solar High Limit Thermostat

    SKU: BI-4-17
    EXCL. TAX £30.94 INCL. TAX £37.13
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