Telford Tempest Indirect 300 Litre Unvented Stainless Steel Cylinder

Product Code: TSMI300
Available 2 - 4 Working Days
Manufacturer Telford
Product Code TSMI300
PDF Document Link tempest-indirect.pdf
PDF Document Link cylinders specification sheet.pdf
£616.14 inc VAT £513.45 exc VAT

This unvented Telford TSMI300 indirect cylinder is just part of the stainless steel hot water cylinder range that is available to buy online from Trading Depot. Click here to find out more
Manufacturer Telford
Product Code TSMI300
PDF Document Link tempest-indirect.pdf
PDF Document Link cylinders specification sheet.pdf
  • Product info

    Telford TSMI300 Details

    Formed from 2304 Duplex Stainless Steel the Telford Tempest cylinders keep heat loss to a minimum and are extremely economical to run.
    • Parts included:
      • 3kW immersion heater – 240V single phase
      • Dual high limit stat
      • Expansion vessel
      • Temperature and pressure relief
      • 3Bar inlet control group
      • two port motorized valve
    • ¾" Cold water inlet an hot water draw-off
    • High density insulation
    • WRAS approved
    • Temperature and pressure relief – inlet group 15mm x 15mm pressure relief – 15mm
    • Tundish 15mm x 22mm compression
    • Secondary return – standard on cylinders 200L and above
    • Capable of delivering up to 55litres of hot water per minute
    • Min recommended supply is 20 litres per min at 1.5bar
    • CFC and HCFC free rigid polyurethane foam
    • Lifetime guarantee on the cylinder and 2 years on parts
    • Manufactured in the UK

    Cylinder Features

    Immersion heater:

    1¾", low noise high grade incoloy elements, safety cut outs, easy to install (installation guide included), and easy to commission

    Duplex 2304:

    Telford use a superior Duplex 2304 stainless steel when manufacturing the Tempest range, which is superior when compared to Duplex 2101 of which some other cylinders are produced from. The cylinder ends are precision manufactured and welded to the body, producing a strong and reliable vessel. The cylinders offer optimised composition alloy elements that has created a stronger and corrosion resistant product.

    Outer casting:

    A white steel with a laminated coated finish which is wipe clean and has a corrosion resistant base.

    Primary Coil:

    22mm continuously wound rapid recovery coil, suitable for pumped primary systems only.


    Tempest stainless steel cylinders can be sited virtually anywhere in the property, but please consider clearance for any maintenance and the weight of the cylinder when full.

    Please note Telford cylinders are made to measure and cancellations/returns are subject to up to a 35% administration fee
  • Tech Specs
    Product Code: TSMI300
    Product Type: Indirect
    Manufacturer: Telford
    Brand: Telford
    Condition: New
    Depth: 500mm
    MPN: TSMI300
    Capacity (Litres): 300
    Cylinder Type: Stainless Steel
    Capacity Range (litres): 150.1 +
    Reheat Time: 40
    Cylinder Diameter: 554
    Standing Heat Loss: 2.30kW/24 Hours
    Cylinder Height: 1650
    Cylinder System: Unvented
    Connection Sizes: ¾:" Female BSP
  • Delivery info

    Delivery charges are calculated at the checkout. Standard delivery to England, Wales and parts of Scotland start from only £4.00 although exceptions do apply.

    More details can be found on our Delivery Information Page

    We offer a no quibble 60 day returns policy on all goods supplied, subject to a few minor exceptions such as cut cable, cylinders and toilet seats etc.

    Find out more on our Returns Policy page.