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MRCOOL Liquid Propane Tankless Water Heater

Save $670.00 Save $670.00
Original price $2,199.00
Original price $2,199.00 - Original price $2,199.00
Original price $2,199.00
Current price $1,529.00
$1,529.00 - $1,529.00
Current price $1,529.00

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MRCOOL Liquid Propane Tankless Water Heater 

With the MrCool® Liquid Propane Tankless Water Heater, you can enjoy hot water much longer and consistently than usually experienced with traditional water heaters. This tankless water heater features a high volume and flow rate, high efficiency, and is capable of accommodating multiple home appliances and up to four bathrooms. This heater is space-saving and compact while being environmentally friendly as well.

Advanced engineering was used to create the corrosion resistant stainless steel unit, which increases the lifespan of the heater. With four times the corrosion resistance of copper, this feature ensures you have clean water in and clean water out. The many high tech features that come with this heater include an electronic thermostatic PCB and an EDM BLDC variable-speed fan. Featuring an eco-friendly premixed burner, you can expect higher efficiency, a higher turn-down ratio, and safer anti-flashback burner.

This also creates a reduction in NOx emissions. The smart self-adapting temperature regulation ensures a comfortable shower experience with accurate temperature regulation. The anti-freeze protection keeps the pipeline water higher than 40°F. The large touch screen display keeps you and your plumber informed about the heater’s operation during maintenance.

This unit must be installed by a professional. Feel protected by the 15-year warranty on the heat exchanger, as well as a 5-year parts warranty and a 5-year service warranty.


  • Meets SCAQMD Standards
  • UNSPSC: 52141700
  • Not mobile home compatible
  • Min Temp: 95 F / Max Temp: 140 F
  • Wattage: 150 W (+114 W when anti-freeze module is on)
  • Maximum Gallons per Minute: 8.45g/min
  • Flow Rate @ 35°F Rise (gallons/min): 10.7
  • Flow Rate @ 45°F Rise (gallons/min): 8.3
  • Flow Rate @ 55°F Rise (gallons/min): 6.8
  • Flow Rate @ 65°F Rise (gallons/min): 5.8
  • 92% Uniform Energy Factor (UEF)
  • PSI: 7-140



11.02" D x 26.77" H x 17.32" W 

Heating Capacity 

199000 BTU

Fuel Type 








Number of Burners 


Min Ambient Heat 

Hot water outlet: NPT3/4in

Drain Connection Size 

Cold water inlet: NPT3/4in

Gas Connection Size 

Gas inlet: NPT3/4in

Ignition Type 

Direct Electric Ignition

Vent Connector 

2 in. or 3 in. or concentric

Overload Protection

Freeze Protection: Yes

Wifi Compatibility


App Compatibility 


CSA Listed 


CSA Certified


Energy Star Certified


Base Warranty

5 year service

Base Parts Warranty

5 year parts

Base Heat Exchanger Warranty

15 year heat exchanger

Proposition 65 Warning 


Net Weight 

68.34 lbs

Gross Depth 


Gross Height 


Gross Width 


Gross Weight 

73.85 lbs

Condenser Weight

Heat Exchanger Weight: 24.03 lbs


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