Excel Pro LPG PROPANE 6.6 GPM Tankless Gas Water Heater

Catalog Item # 116204

This 6.6 gpm unit available in Propane Gas is a Powerful Unit for customers that need higher volumes of unlimited hot water.

This compact , yet  powerful unit - with gas inputs up to 136,000 BTU per hour - can meet all the hot-water needs of a campsite or big cabin. 

hour - can meet all the hot-water needs of a campsite or big cabin.  Designed to virtually do anything a 40-gallon tank-type water heater can do and much more

Excel Pro: Modulating Technology

Modulated tankless water heaters change their heat output in response to the flow rate of water running through the unit.  

Tankless water heaters can be further divided into two categories according to their heating capability: "full on/full off" versus "modulating". 

Full on/full off units do not have a variable power output level; the unit is either fully on or completely off. This can cause an annoying and possibly hazardous variation of hot water temperature, as the flow of water through the heater varies. 

The Excel Pro comes with a display panel where you can set the output temperature and regardless of water flow the unit modulates the fire power. 

Pure Copper Heat Exchanger

As used by top of the line tankless  gas  water heater manufacturers like  Rinnai, Takagi,  Rheem and  Noritz


  • Super compact 14.5" x 23" x 5.5" size
  • 84%+ thermal efficiency
  • 136,000 BTU maximum input
  • 6.6 gallons/ minute capacity at 35F degree rise
  • Minimum activation flow rate of 1.2 gpm
  • Electronic ignition
  • Vents vertically or horizontally with 3.5”  stainless steel flue kit included (elbow +duct)
  • Max Input (BTU) - 136,000
  • Min Input (BTU) - 20,000
  • Capacity at 35 (°F) Rise (gpm) - 6.6
  • Capacity at 45(°F) Rise (gpm) - 4.4
  • Min Flow Rate - 0.5 gpm
  • Temp Range (°F) - 100 to 160
  • Temp Stability (°F) - +/- 2 °
  • Default Temp (°F) - 120
  • Energy Factor - 84%+
  • Thermal Efficiency - 83%+
  • Installation Options - Indoor
  • Dimensions (w x h x d) - 14.5" x 23" x 5.5"
  • Weight (lbs.) - 36
  • Inlet Connection - 1/2" NPT
  • Outlet Connection - 1/2" NPT
  • Gas Connection -  1/2"NPT or ¾" BSP 
  • Max Water Pressure - 150 psi
  • Min Water Pressure - 10 psi
  • Venting :  Stainless Steel CAT III Flue 3.5" Diameter Included (20") + Elbow - See Pictures
  • Vent Maximun Run - 35 feet

    What's Included:

  • 110 volt UL listed power cord
  • 15-year warranty on heat exchanger
  • 3-year warranty on other parts parts
  • 3.5" Dia Flue Elbow
  • 3.5" Dia 20” Flue

  • Technical Specifications

    40 lbs.

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