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    Unvented Cylinders

    We highly recommend an unvented cylinder for those with a pressurised heating system or those looking to save on space. With hot water provided directly from the cold mains (under pressure), there is no need for a cistern tank. An unvented cylinder provides the hot water you require quickly and safetly.

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    Picture of Joule Cyclone + Plus Indirect 120ltr Cylinder External Expansion Vessel *Made In UK

    Joule Cyclone + Plus Indirect 120ltr Cylinder External Expansion Vessel *Made In UK

    Joule cyclone plus cylinders is built using high-grade Duplex stainless steel and designed to provide fast flowing hot water to single or multiple outlets. Manufactured to the highest standards and supplied with innovative components to ensure quick recovery, low heat loss, and economic use of energy. Made from Duplex Stainless Steel. The Joule unvented cylinders are insulated with 50mm 100% CFC and HCFC free polyurethane to minimise heat loss.
    £808.05 incl tax
    Picture of Joule Cyclone + Plus Indirect 300ltr Cylinder Exxternal Expansion Vessel *Made In UK

    Joule Cyclone + Plus Indirect 300ltr Cylinder Exxternal Expansion Vessel *Made In UK

    Joule cyclone plus cylinders is built using high-grade Duplex stainless steel and designed to provide fast flowing hot water to single or multiple outlets. Manufactured to the highest standards and supplied with innovative components to ensure quick recovery, low heat loss, and economic use of energy. Made from Duplex Stainless Steel. The Joule unvented cylinders are insulated with 50mm 100% CFC and HCFC free polyurethane to minimise heat loss.
    £967.43 incl tax
    Picture of Joule Cyclone + Plus Indirect 150ltr Cylinder External Expansion Vessel *Made In UK

    Joule Cyclone + Plus Indirect 150ltr Cylinder External Expansion Vessel *Made In UK

    Joule cyclone plus cylinders is built using high-grade Duplex stainless steel and designed to provide fast flowing hot water to single or multiple outlets. Manufactured to the highest standards and supplied with innovative components to ensure quick recovery, low heat loss, and economic use of energy. Made from Duplex Stainless Steel. The Joule unvented cylinders are insulated with 50mm 100% CFC and HCFC free polyurethane to minimise heat loss.
    £837.49 incl tax
    Picture of Joule Cyclone + Plus Indirect 210ltr Cylinder External Expansion Vessel *Made In UK

    Joule Cyclone + Plus Indirect 210ltr Cylinder External Expansion Vessel *Made In UK

    Joule cyclone plus cylinders is built using high-grade Duplex stainless steel and designed to provide fast flowing hot water to single or multiple outlets. Manufactured to the highest standards and supplied with innovative components to ensure quick recovery, low heat loss, and economic use of energy. Made from Duplex Stainless Steel. The Joule unvented cylinders are insulated with 50mm 100% CFC and HCFC free polyurethane to minimise heat loss.
    £896.46 incl tax
    Picture of Joule Cyclone + Plus Indirect 250ltr Cylinder External Expansion Vessel *Made In UK

    Joule Cyclone + Plus Indirect 250ltr Cylinder External Expansion Vessel *Made In UK

    Joule cyclone plus cylinders is built using high-grade Duplex stainless steel and designed to provide fast flowing hot water to single or multiple outlets. Manufactured to the highest standards and supplied with innovative components to ensure quick recovery, low heat loss, and economic use of energy. Made from Duplex Stainless Steel. The Joule unvented cylinders are insulated with 50mm 100% CFC and HCFC free polyurethane to minimise heat loss.
    £901.88 incl tax
    Picture of Joule Cyclone + Plus Direct 210ltr Cylinder External Expansion Vessel *Made In UK

    Joule Cyclone + Plus Direct 210ltr Cylinder External Expansion Vessel *Made In UK

    Joule cyclone plus cylinders is built using high-grade Duplex stainless steel and designed to provide fast flowing hot water to single or multiple outlets. Manufactured to the highest standards and supplied with innovative components to ensure quick recovery, low heat loss, and economic use of energy. Made from Duplex Stainless Steel. The Joule unvented cylinders are insulated with 50mm 100% CFC and HCFC free polyurethane to minimise heat loss.
    £707.97 incl tax
    Picture of Joule Cyclone + Plus Direct 170ltr Cylinder External Expansion Vessel *Made In UK

    Joule Cyclone + Plus Direct 170ltr Cylinder External Expansion Vessel *Made In UK

    Joule Cyclone Plus cylinders is built using high-grade Duplex stainless steel and designed to provide fast flowing hot water to single or multiple outlets. Manufactured to the highest standards and supplied with innovative components to ensure quick recovery, low heat loss, and economic use of energy. Made from Duplex Stainless Steel. The Joule unvented cylinders are insulated with 50mm 100% CFC and HCFC free polyurethane to minimise heat loss.
    £680.63 incl tax
    Picture of Joule Cyclone + Plus Direct 120ltr Cylinder External Expansion Vessel *Made In UK

    Joule Cyclone + Plus Direct 120ltr Cylinder External Expansion Vessel *Made In UK

    Joule cyclone plus cylinders is built using high-grade Duplex stainless steel and designed to provide fast flowing hot water to single or multiple outlets. Manufactured to the highest standards and supplied with innovative components to ensure quick recovery, low heat loss, and economic use of energy. Made from Duplex Stainless Steel. The Joule unvented cylinders are insulated with 50mm 100% CFC and HCFC free polyurethane to minimise heat loss.
    £626.00 incl tax
    Picture of Joule Cyclone + Plus Direct 150ltr Cylinder External Expansion Vessel *Made In UK

    Joule Cyclone + Plus Direct 150ltr Cylinder External Expansion Vessel *Made In UK

    Joule cyclone plus cylinders is built using high-grade Duplex stainless steel and designed to provide fast flowing hot water to single or multiple outlets. Manufactured to the highest standards and supplied with innovative components to ensure quick recovery, low heat loss, and economic use of energy. Made from Duplex Stainless Steel. The Joule unvented cylinders are insulated with 50mm 100% CFC and HCFC free polyurethane to minimise heat loss.
    £653.34 incl tax
    Picture of Joule Cyclone + Plus Direct 300ltr Cylinder External Expansion Vessel *Made In UK

    Joule Cyclone + Plus Direct 300ltr Cylinder External Expansion Vessel *Made In UK

    Joule cyclone plus cylinders is built using high-grade Duplex stainless steel and designed to provide fast flowing hot water to single or multiple outlets. Manufactured to the highest standards and supplied with innovative components to ensure quick recovery, low heat loss, and economic use of energy. Made from Duplex Stainless Steel. The Joule unvented cylinders are insulated with 50mm 100% CFC and HCFC free polyurethane to minimise heat loss.
    £2,366.15 incl tax
    Picture of Joule Cyclone + Plus Indirect 180ltr Cylinder External Expansion Vessel *Made In UK

    Joule Cyclone + Plus Indirect 180ltr Cylinder External Expansion Vessel *Made In UK

    Joule cyclone plus cylinders is built using high-grade Duplex stainless steel and designed to provide fast flowing hot water to single or multiple outlets. Manufactured to the highest standards and supplied with innovative components to ensure quick recovery, low heat loss, and economic use of energy. Made from Duplex Stainless Steel. The Joule unvented cylinders are insulated with 50mm 100% CFC and HCFC free polyurethane to minimise heat loss.
    £866.99 incl tax
    Picture of Joule Cyclone + Plus Direct 250ltr Cylinder External Expansion Vessel *Made In UK

    Joule Cyclone + Plus Direct 250ltr Cylinder External Expansion Vessel *Made In UK

    Joule Cyclone Plus cylinders is built using high-grade Duplex stainless steel and designed to provide fast flowing hot water to single or multiple outlets. Manufactured to the highest standards and supplied with innovative components to ensure quick recovery, low heat loss, and economic use of energy. Made from Duplex Stainless Steel. The Joule unvented cylinders are insulated with 50mm 100% CFC and HCFC free polyurethane to minimise heat loss.
    £809.00 incl tax