300L Direct Telford Tempest Vertical Unvented Cylinder TSMD300

300L Direct Telford Tempest Vertical Unvented Cylinder – TSMD300

The 300L Telford Tempest TSMD300 is the largest domestic direct vertical unvented cylinder in the Tempest range, designed for large family homes with up to 6 bedrooms, multiple bathrooms and the highest daily hot water demand.

Powered by two factory-fitted 3kW immersion heaters, the TSMD300 delivers reliable mains pressure hot water without the need for a conventional boiler. Ideal for busy households where multiple showers, baths and hot water outlets are often used at the same time, this cylinder provides outstanding performance and dependable hot water availability. Manufactured from 2304 Duplex Stainless Steel, it offers exceptional corrosion resistance, long-lasting durability and excellent reliability.

Supplied complete with the expansion vessel and installation kit, the TSMD300 includes everything required for a professional installation.

Key Features

• 300 litre direct vertical unvented cylinder
• Ideal for large homes with up to 6 bedrooms and multiple bathrooms
• Largest domestic direct cylinder in the Telford Tempest range
• 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.

The Ultimate Direct Cylinder for High Hot Water Demand

The TSMD300 uses two built-in electric immersion heaters to provide a dependable supply of mains pressure hot water without the need for a traditional boiler. It's the ideal solution for:

• Large family homes
• Properties with multiple bathrooms
• Homes with high daily hot water demand
• Electric-only properties
• Homes without a gas supply
• Luxury homes and larger new-build properties

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.

Warranty

• Lifetime warranty on the stainless steel cylinder*
• 2-year warranty on supplied components

The cylinder must be serviced every 12 months by a qualified engineer to maintain the manufacturer's warranty.