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 BU577 Water heating systems

BU577.jpgWater heating in an average New Zealand house accounts for around one-third of total energy use. Costs of purchase, installation, energy and maintenance should all be considered when selecting a water heating system.

This bulletin provides guidance on options for residential installations in New Zealand.

The bulletin covers:

  • energy options, including electricity, gas, wetback, solar water heating and heat pump water heating
  • regulatory requirements
  • water heating systems, including electric storage water heaters, gas storage water heaters, gas continuous-flow water heaters and electric instantaneous water heaters
  • operating costs and energy use

Publication date: October 2014 Keywords: electrical, heating, sustainability