Megaflow are renowned for quality unvented hot water cylinders and are manufactured by a company called Heatrae Sadia. Heatrae Sadia are the UK’s leading manufacturer of hot water systems with their flagship brand ‘Megaflow‘ leading the way in unvented hot water cylinders. Megaflow are not the only brand (if perhaps the most well known) of unvented hot water cylinders we also install, maintain and service other cylinder makes such as Main and Vaillant.

The features below describe MegaFlo’s new range of HE cylinders which use a ‘coil in coil’ heat exchanger to deliver more hot water quicker than previous models. Please also note that older models may differ in specification, always consult your manual.

  • Internal air-gap with patented floating baffle
  • Strong, Duplex stainless steel construction
  • High performance ‘coil-in-coil’ heat exchanger
  • No sacrificial anode (eliminates need for annual inspection)
  • Appliance-like plastic-coated outer case
  • Patented cold water inlet diffuser minimises mixing of cold and hot water
  • Water inlet controls increase flow rates by up to 35%
  • Improved performance even at 1 bar
  • Every unit tested to 15 bar (217psi)
  • 25-year transferable cylinder guarantee
  • ½” temperature and pressure relief valve

Benefits of a Megaflo HE system:

  • Higher flow rates for efficient hot water delivery (Up to 72 l/min)
  • High performance showering –throughout the home
  • Fast-filling baths
  • Quieter mains pressure system (no noisy cistern in the loft)
  • Balanced baths
  • Quieter mains pressure system (no noisy cistern in the loft)
  • Balanced water pressure – no surprises
  • Fast recover rates (eg. 15 minutes for CL125HE)
  • Exceeds CHeSS Best Practice for heat recovery and insulation
  • CFC free insulation for maximum heat retention
  • No anode to check or replace
  • Mains fed hygienic hot water
  • Appliance quality, easy-clean finish
  • Long-life Duplex stainless steel interior
  • 25-year transferable cylinder guarantee
  • Patented internal expansion system
  • No external expansion vessel
  • Complete with mains water isolating valve
  • All units are fully factory tested to ensure reliability
  • Neater and quicker installation

The installations of the unvented cylinders are carried out quickly and professionally by a team specially trained and qualified to install unvented cylinders.