Rheem Continuous Flow 20L Outdoor

Rheem Continuous Flow 20L Outdoor


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Rheem continuous flow gas water heaters deliver hot water when you need it, for as long as you need it.

Working differently from traditional storage water heaters, continuous flow water heaters only heat water on demand rather than heating and storing water until needed.

They are ideal for homes with high peak loads or when hot water is required occasionally such as at a holiday home.

  • Flamesafe overheat protection
  • 6 star energy rating
  • Digital display for easy fault diagnosis and service
  • Frost protected down to –20°C
  • Rheem EZ Link® compatible to link two units for increased delivery
  • Optional remote temperature controllers
  • All Rheem Gas Continuous Flow products comply with legislative requirements (Gas and Electrical Certification Amendments 2013)
  • Model: Continuous Flow 874820NFZ/LFZ
Flow Rate Installation Type Energy
20L/min Outdoor Continuous Flow Gas

Product Specifications

L/Min@25°C Rise 20 L/min
Gas Input Max MJ/Hr 157
Gas Type Natural Gas or ULPG
Gas Connection “/mm RP ¾/20
Min. Gas Supply Pressure NG/LPG kPa 1.13/2.75
Water Supply Pressure (Min – Max) kPa 120-1000
Minimum Flow Rate 2L/Min
Cold Water Connection “/mm RP ¾/20
Hot Water Connection “/mm RP ¾/20
Approx Wt Empty kg 16
Freeze Protection Natural Gas & ULPG
Electricity Supply 1 x 10amp 240V/50Hz (3 pin plug)



Owners Guide



Gas Type



Shipping times vary for different products please see the list below for estimated shipping timeframes.

Product Shipping Times
Accessories 2-3 days
Basins 5-7 days
Baths 3-5 days
Showers 5-7 days
Toilet 5-7 days
Vanities (excluding Brighton range) Vanities are custom made and have a lead time of 2 weeks. A delivery date will be emailed on receipt of your order.
Vanities (Brighton range) 5-7 days
Heat Pumps 5-7 days
Gas Fires 3-5 days
Installation Accessories 2-3 days
Laundry 3-5 days
Pumps 3-5 days
Tapware 3-6 days
Water Filters 3-5 days
Water Heating Products 3-5 days

View our returns policy