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  • Precision Temp Shower Mate Marine Gas Water Heater - M500

    Product ID • PRECTEMP0000

  • $1,450.00
  • Quantity:
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The Precision Temp ShowerMate propane marine water heater with patented VariFlame controls delivers an endless flow of hot water for the ultimate shower. It is perfect for boaters who don't want to leave the comforts of home behind while on the high seas.

The heater operates only when the hot water outlet is turned on. The VariFlame control system keeps the water temperature constant regardless of the flow rate or incoming water temperature. With 55,000 BTUs of heating capacity, the ShowerMate has five to six times the power of typical tank heaters - and all without engine power or shore power. It’s lightweight, compact, efficient and installs almost anywhere. In fact, the typical boat owner can expect to use very little propane for all this comfort; estimated 920 gallons of shower temperature water per 20 pounds of propane.

The ShowerMate propane fired tankless water heater is stainless steel construction and can be mounted as a closed combustion system for safety and peace of mind.

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Technical Specs

Precision Temp Shower Mate Marine Gas Water Heater M500 Techs and Specs

  • Type
    Gas instantaneous, power vented. Full gas modulation temperature control
  • Width
    13.5 inches
  • Depth
    13.5 inches
  • Height
    14.25 inches
  • Weight
    35 lbs full
  • Electric Hook-ups
    18-2 x 2ft lead
  • Gas Hook-ups
    Brass 3/8 inches flare inside case, rear accessible
  • Water Hook-ups
    1/2 inch OD copper tubing. Brass compression to 1/2 inch NPT elbow can be installed or as specified
  • 55,000 Btu input capacity- 44,000 Btu output at maximum burn
    8.5 WCI manifold pressure(88°F temperature rise per gallon per minute continuous flow at high burn)
  • 15,000 Btu input capacity- 10,600 Btu output at low burn
    1.2 WCI manifold pressure(88°F temperature rise per gallon per minute continuous flow at high burn)
  • Fuel Consumption
    2.55 lbs per hour at maximum input. (At 2 GPM of water, 20 lbs of propane will produce over 940 gallons of hot water)
  • Mounting
    Side mounted keyed bracket. Left or right side mounted
  • Clearances
    Zero clearance top (blower), bottom and sides. 2 inches in back for hook-ups. Enough space in front to remove cover for service
  • Flue
    2 inches power vent with proofing switch. (3" stainless flex duct recommended to the outside and can run up to 25 ft)
  • Modular Construction
    Three assemblies; gas, electronics and water
  • Burner Construction
    High primary air, 12 element, atmospheric type. Aluminized steel body with stainless flame strips
  • Heat exchanger Contruction
    Copper fin tube type with wrap for cooling
  • Electronic Construction
    Plug in, potted, works-in-a- drawer
  • Case and flue assembly construction
    stainless steel
  • Fuel
    Propane at 11 WCI
  • Power
    12 VDC at 4 amps while running, 40 milli-amps in standby. # 12 power line recommended
  • Water Temperature
    Factory set at 115°F. Can be field adjusted 90° to 135°F
  • Mounting
    Mounting flanges included. Must be mounted in accordance with any applicable Coast Guard and ABYC recommendations
  • Safety Features
    The Shower-Mate is pilotless. There is no flame unless water flow is sensed. Flame rectification : Gas valve shuts off in .8 of a second if there is a flame outage. Redundant gas solenoid. Electronic high temperature shut-off (two). ECO high temperature shut off at 165°F with manual reset. Pressure relief valve at 100 PSI. Power vent must proof fluing before gas valve opens

Precision Temp Shower Mate Marine Gas Water Heater M500 Features

  • Never run out of hot water again
  • Designed specifically for the marine environment
  • Needs no engine or shore power
  • Mounts almost anywhere with standard power vent
  • No pilot light and very high efficiency
  • Straight forward installation - Closed combustion option
  • Reliable, proven VariFlame technology control system

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