170L Direct Telford Tempest Vertical Unvented Cylinder TSMD170

170L Direct Telford Tempest Vertical Unvented Cylinder – TSMD170

The 170L Telford Tempest TSMD170 is a premium direct vertical unvented hot water cylinder, ideal for family homes with up to 3 bedrooms, 1 bathroom and 1 shower.

Designed for properties without a conventional boiler, the TSMD170 is heated by two factory-fitted 3kW immersion heaters, making it an excellent solution for electric-only homes and modern heating systems. Manufactured from 2304 Duplex Stainless Steel, it provides exceptional corrosion resistance, outstanding durability and reliable mains pressure hot water performance for busy households with increased daily hot water demand.

Supplied complete with the expansion vessel and installation kit, the TSMD170 includes everything required for a professional installation.

Key Features

• 170 litre direct vertical unvented cylinder
• Ideal for homes with up to 3 bedrooms, 1 bathroom and 1 shower
• Heated by 2 x 3kW immersion heaters
• No boiler required
• Manufactured from 2304 Duplex Stainless Steel
• Excellent corrosion resistance for a longer service life
• 3 Bar working pressure
• Pressure tested to 15 Bar
• Relief valve operates at 7 Bar / 90–95°C
• 22mm domestic connections
• Delivers up to 55 litres per minute flow rate
• Suitable for mains pressure hot water systems
• Complete with expansion vessel and installation kit
• Lifetime cylinder warranty*

Supplied Complete With

• 2 x 3kW Immersion Heaters (240V Single Phase)
• Expansion Vessel
• Expansion Vessel Kit
• Temperature & Pressure Relief Valve
• 3 Bar Inlet Control Group

Everything required for a standard installation is included.

Reliable Mains Pressure Hot Water Without a Boiler

The TSMD170 is heated using two built-in electric immersion heaters, removing the need for a traditional boiler. This makes it an excellent choice for:

• Electric-only homes
• Family properties without a gas supply
• Apartments and flats
• Holiday homes
• Annexes
• New-build homes using electric heating systems

Why Buy From TDL?

• Kept in stock for immediate dispatch
• FREE Next Working Day Delivery when ordered before 2:30pm
• Competitive UK prices
• Expert technical support from our experienced team
• Real People. Real Service. For Over 40 Years.

Recommended Cylinder Size Guide

The above guide is intended as a recommendation only. Actual hot water requirements will vary depending on household usage.