Unvented Pressurised hot water systemsAdvantages of an Unvented Hot Water System

  • Balanced pressures at hot and cold taps and showers.
  • Higher water pressures available at the hot taps, giving a larger and better choice of terminal fittings.
  • Eliminates risk of contamination, as there is no storage cistern.
  • Hot water storage vessel can be sited anywhere in the house. Very suitable for one storey dwellings, e.g. flats and bungalows.
  • Quicker to install, no cold storage cistern, less pipework
  • Smaller diameter hot water supply pipes may possibly be used.
  • Gives architects and service designers greater flexibility of design

Biggs and Read can supply and install either direct or indirect unvented hot water cylinders.


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Unvented Pressurised Hot Water Systems was last modified: June 2nd, 2015 by charlotte