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Telford Tempest Unvented Indirect Cylinder

(4 customer reviews)

From £600.32 From £571.73 inc. VAT

  • Lifetime guarantee
  • 2 years guarantee on components
  • High-density insulation
  • Full unvented kit supplied, including remote expansion vessel
  • WRAS approved
  • Treated to protect against corrosion


Telford Tempest Unvented Cylinder – Indirect

Product Code: TSMI

The Telford Tempest Unvented Cylinder is the flagship stainless steel unvented cylinder. Over the years there have been changes in the hot water industry that have caused manufacturers to offer lower grade stainless steel to remain competitive.

All Telford stainless products have remained the same high grade of stainless steel, up to 40% thicker than some products on the market today.

For Telford a family run company, quality is the first priority. Whilst remaining competitive, we offer a manufacturer’s lifetime guarantee, this gives both us and you the customer, peace of mind.

At Installers Hub we sell a wide range of Telford Cylinders.


Product Code Description Capacity (Litres) Height (mm) Diameter (mm) Weight Full (Kg) Standing Loss (Watts) ERP Rating
TSMI125 Indirect 125 935 510 165 62 C
TSMI150 Indirect 150 1060 510 195 72 C
TSMI170 Indirect 170 1200 510 220 81 C
TSMI200 Indirect 200 1120 554 250 85 C
TSMI250 Indirect 250 1330 554 310 96 D
TSMI300 Indirect 300 1650 554 360 118 D


Downloads: Specification Sheet – Installation Guide

More information available on Telford’s website


Additional information

Weight N/A
Dimensions N/A

90L, 125L, 150L, 170L, 200L, 250L, 300L



4 reviews for Telford Tempest Unvented Indirect Cylinder

  1. Bobby H.

    Easy transaction and good price on Telford

  2. Jon Perry

    Best price on the net & fast delivery

  3. Omar Hadid

    Lifetime warranty and easy to install

  4. Lou

    Great cylinder

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