Unvented Hot Water Storage Cylinders

Indirect, direct & twin coil stainless steel

Telford high-performance unvented hot water storage cylinders are manufactured in the UK from premium quality Duplex stainless-steel which provides superior corrosion resistance. All cylinders are supplied with 316L grade stainless-steel 22mm compression fittings, for ease of installation and 22mm primary coils with increased surface area for quick recovery.

Carrying a lifetime warranty*, cylinders are available in capacities of 90-500 litres for indirect, direct, heat pump, solar and twin coil applications. Pre-plumbed, horizontal and slimline options are also available, together with a competitively priced bespoke service with fast turnaround times.

*Terms & Conditions apply


Stainless steel unvented cylinders

TEMPEST Indirect & Direct Unvented Cylinders


TEMPEST Indirect

TEMPEST Indirect

TEMPEST Indirect Slimline

TEMPEST Indirect Slimline

TEMPEST Direct

TEMPEST Direct

TEMPEST Direct Slimline

TEMPEST Direct Slimline

TEMPEST Indirect Horizontal

TEMPEST Indirect Horizontal

TEMPEST Indirect High Gain

TEMPEST Indirect High Gain

TEMPEST Indirect Twin Coil Solar

TEMPEST Indirect Twin Coil Solar

TEMPEST Indirect Twin Coil Solar Slimline

TEMPEST Indirect Twin Coil Solar Slimline

TEMPEST Direct Solar

TEMPEST Direct Solar

Tempest Heat Pumps


TEMPEST Heat Pump with 50L Buffer

TEMPEST Heat Pump with 50L Buffer

TEMPEST Heat Pump Indirect Slimline

TEMPEST Heat Pump Indirect  Slimline

TEMPEST Heat Pump Solar

TEMPEST Heat Pump Solar

TEMPEST Heat Pump with 30L Buffer

TEMPEST Heat Pump with 30L Buffer

TEMPEST Heat Pump Indirect

TEMPEST Heat Pump Indirect

TEMPEST Heat Pump with 50L Buffer Pre-plumbed

TEMPEST Heat Pump with 50L Buffer Pre-plumbed

HURRICANE Indirect & Direct Unvented


HURRICANE Indirect

HURRICANE Indirect

TORNADO Indirect & Direct Cylinders


TORNADO Indirect

TORNADO Indirect

TORNADO Indirect Twin Coil

TORNADO Indirect Twin Coil

TORNADO Direct

TORNADO Direct

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