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Unvented Cylinders

  • Solar Direct Stelflow Cylinder

    The Stelflow Solar Direct gives those without any form of backup heating the chance to capitalise on the benefits of solar thermal, by providing 2 immersion heaters to back the solar thermal up and provide pacification everyone has the ability to take advantage of the suns energy.  As with all the Stelflow units the Solar Direct features the coil in coil high efficiency heat exchangers.

  • Twin Coil Prostel Cylinder

    The Prostel Twin Coil presents the opportunity to combine multiple heat sources into one unit, primarily designed to work with solar thermal the unit can also be upgraded with minimal additional components to accept two boiler inputs. The twin coil unit takes advantage of two heat exchangers for maximum performance, it is also even possible to link these two together to give one much larger heat exchanger coil.

  • Twin Coil Slimline Cylinder

    The Slimline Twin Coil presents the opportunity to combine multiple heat sources into one unit without sacrificing floor space, at only 475mm wide and designed to work with solar thermal the unit can also be upgraded with minimal additional components to accept two boiler inputs. The twin coil unit takes advantage of two high efficiency coil in coil heat exchangers for maximum performance, it is also even possible to link these two together to give one much larger heat exchanger coils.

  • Twin Coil Stelflow Cylinder

    The Stelflow Twin Coil presents the opportunity to combine multiple heat sources into one unit, primarily designed to work with solar thermal the unit can also be upgraded with minimal additional components to accept two boiler inputs. The twin coil unit takes advantage of two high efficiency coil in coil heat exchangers for maximum performance, it is also even possible to link these two together to give one much larger heat exchanger coils.