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Megaflo

Megaflo Eco Unvented Cylinder

Industry-standard unvented cylinder with mains-pressure hot water and 25-year tank warranty

The Megaflo Eco is the benchmark unvented hot water cylinder in the UK, trusted by installers for its reliability, mains-pressure output, and exceptional 25-year tank warranty. Made from duplex stainless steel, it accepts heat from gas boilers, heat pumps, solar thermal, and electric immersion — making it a genuinely future-proof choice. Available in sizes from 70 to 500 litres, with G3 compliance throughout.

Free site survey MCS certified installation Manufacturer warranty registered
Megaflo Eco unvented hot water cylinder stainless steel

Megaflo Eco Unvented Cylinder — supplied and installed by CCS Heating & Renewables

Technical Specifications

Available Sizes 70–500 litres
Operating Pressure Mains pressure (up to 6 bar)
Material Stainless steel (duplex grade)
Reheat Time Fast (high recovery rate)
Heat Sources Immersion, boiler, solar, heat pump
Energy Label A-rated (with solar kit)
Compliance G3 unvented standard
Tank Warranty 25 years

Key Benefits

Mains-Pressure Hot Water

No head tank, no pump — mains pressure throughout the house means powerful showers without any additional equipment.

25-Year Tank Warranty

The duplex stainless steel tank carries a 25-year warranty — exceptional longevity matched by few products in any category.

No Header Tank

Eliminates the cold water storage tank in the loft, freeing up roof space and removing a source of contamination and frost risk.

Multiple Heat Sources

Compatible with gas boilers, heat pumps, solar thermal coils, and electric immersion — future-proof for any energy transition.

Industry Standard

Trusted by plumbers and installers across the UK for decades — parts and service expertise are universally available.

Available to 500 Litres

Covers everything from a one-bedroom flat to a large family home, with sizes from 70 to 500 litres.

Ideal For

  • Homes replacing a vented hot water system wanting mains-pressure output
  • Properties with heat pumps requiring a heat-pump compatible cylinder
  • Larger homes wanting high hot water demand capacity
  • Anyone wanting a long-warranty, low-maintenance hot water solution

Installation Service

Supply and installation of hot water cylinders including Mixergy smart cylinders and Megaflo unvented systems. Solar div...

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