Collections: Marey, Water & Waste, Water Heaters

Marey GA20CSALP Water Heater

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  • Marey 6.87GPM
  • High Efficiency
  • CSA Certified
  • Residential Multiple Points of Use Natural Gas Tankless Water Heater
  • CSA Certified
  • LED Touch Screen
  • Computerized Safety
  • Flow activation
  • Oxygen free copper heat exchanger
  • Stainless Steel Venting Exhaust
  • Anti-Freeze Protection

Whole house indoor solution for 3 or more multiple points of use, Marey’s unit has a maximum input rating of 145,000 BTU/hr and will provide a flow rate of up to 6.87GPM output. This model is ideal for any any size home, apartment, cabin and small commercial usage. This model is ideal for any any size home, apartment, cabin and small commercial usage. In addition to state of the art design, the unit comes with a computerized safety system, over-heating protction, flame failure protection and anti-freeze protection.CSA certified for the US and Canada market.

  • Minimum Activation Rate 0.66 GPM
  • Minimum Temperature 97 °F – 140 MAX.
  • Water Connection Location – BOTTOM
  • Water Connection Size 3/4″
  • Flow Rate @ 35°F Rise 6.87 GPM
  • Flow Rate @ 45°F Rise 5.7 GPM
  • Flow Rate @ 55°F Rise 4.5 GPM
  • Flow Rate @ 67°F Rise 3.7 GPM


  • Designed to effectively supply endless and on demand hot water for 3 or more multiple points of use
  • The unit has no pilot light and consumes no gas when the heater is not being used
  • Multiple built in safety features: Overheating Protection, Anti-block protection, Flame-failure protection and Anti-freeze protection .
  • Oxygen Free Heat Exchanger
  • Screen Touch precise temperature control
  • Compact design allows installation in almost anywhere at home.
  • Must be installed by a professional plumber or electrician to ensure safety and quality.

BTUs: 145,000
GPM: 6.87
Ignition: Volt Connection - 120v
Gas Type: Liquid Propane
Points of use: up to 4
Min, water flow to activate the unit (GPM): 0.66
Water connection size (in): 3/4
Vent diameter (in): 3/4
Temperature setting: Digital panel
Dimension (WxHxL): 17.1 x 26.2 x 7.3
Weight: 40.8 lbs
Certifications/Approvals: CSA

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