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Limited Products. Full Catalog Coming Soon. Free Standard Delivery in most of the UK.
Limited Products. Full Catalog Coming Soon. Free Standard Delivery in most of the UK.

Telford Tempest Slimline 250 Litre Indirect Unvented Hot Water Cylinder 510 Diameter TSMI250SL

by Telford
SKU TSMI250SL
Save 15% Save 15%
Original price £869.28
Original price £869.28 - Original price £869.28
Original price £869.28
Current price £738.88
£738.88 - £738.88
Current price £738.88

Presenting one of the slimmest 250 litre unvented hot water cylinder in the market.
The Telford Tempest Slimline 250 Litre Indirect Unvented Hot Water Cylinder (TSMI250SL) is the perfect hot water solution for homes with limited installation space. With its slimline diameter of 510mm, it is designed to fit narrow spaces while delivering exceptional performance and efficiency.

At Getplumb, we guarantee the lowest prices on this premium slimline model, offering exceptional value for your investment.

Built with high-quality Duplex 2304 stainless steel, this cylinder is engineered for durability and excellent corrosion resistance. Designed to work seamlessly with indirect heating systems such as gas or oil boilers, it features rapid recovery times and outstanding energy efficiency, fully compliant with ERP standards.


Key Features:

  • Slimline Design: Compact 510mm diameter, ideal for space-restricted installations.
  • Capacity: 250 litres, suitable for medium to large households or light commercial use.
  • Material: Duplex 2304 stainless steel for superior durability and resistance to corrosion.
  • Reheat Time: Rapid recovery in just 35 minutes (from 10°C to 60°C).
  • Insulation: High-density polyurethane for minimal heat loss (2.00 kWh/24h).
  • Operating Pressure: 3 bar, with a maximum incoming supply pressure of 12 bar.
  • Energy Rating: ERP-certified with a "C" energy efficiency classification.
  • Fittings: 22mm compression connections for easy installation.
  • Safety: Includes a 1/2" 7-bar T&P relief valve, thermostat pocket, and WRAS-approved components.
  • Guarantee: Lifetime warranty on the cylinder shell and 2 years on components.
  • Supplied with: Acetal tundish, Inlet control group, two port valve, external expansion vessel with bracket, dual probe thermostat.

Specification Table:

Feature Details
Nominal Capacity 250 Litres
Height 1800 mm
Diameter 510 mm
Empty Weight 55 kg
Full Weight 301 kg
Standing Heat Loss (24h) 2.00 kWh
Reheat Time 35 minutes
Operating Pressure 3 Bar
Max Supply Pressure 12 Bar
Immersion Heater Rating 3kW, 240V
Connections 22mm compression
Safety Features T&P relief valve, thermostat pocket
Energy Efficiency Class C

The Telford Tempest Slimline 250L is a space-saving, energy-efficient, and durable hot water cylinder, ideal for households looking for premium performance in compact spaces. With Getplumb's lowest prices, you can upgrade your heating system without exceeding your budget.

Order online today or visit our Reading store for collection!