Overview — PrecisionTemp ShowerMate M-550 EC Natural Gas Tankless Water Heater
The ShowerMate M-550 EC is perfect for the boater who doesn't want to leave the comforts of home behind when on the high seas.
- Endless hot water, on-demand
- Designed specifically for the marine environment
- Weight 30.5
- Dimensions 13.5” Wide x 13.5” deep x 14.5” High , including power vent
- No pilot light for safety and insurable
- Straightforward installation.
- Reliable, proven VariFlame technology control system
- Complies to ABYC recommendations as an attended appliance when installed per instructions
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Features — PrecisionTemp ShowerMate M-550 EC Natural Gas Tankless Water Heater
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The PrecisionTemp ShowerMate M-550 EC tankless, marine water heater utilizes our patented VariFlame Control technology to deliver an endless flow of hot water for the ultimate marine shower.
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The Proof is in the POWER
With 55,000 BTUs—the highest hot water output in the industry—and built-in freeze protection, the M-550 EC delivers on-demand, continuous hot water—all without using engine or shore power.
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Quiet and Efficient
For the same amount of natural gas, the M-550 EC produces more hot water than a traditional water heater.
Specs — PrecisionTemp ShowerMate M-550 EC Natural Gas Tankless Water Heater
| Type | Gas instantaneous, power vented. Full gas modulation temperature control. |
| Dimensions | 13.5″ Wide x 13.5″ Deep x 14.5″ High, including power vent. |
| Weight | 30.5 pounds full. |
| Hook-ups | Electric: 18-2 x 2′ lead. Gas: Brass 3/8″ flare inside case, rear accessible.Water: 1/2″ OD copper tubing.Brass compression to 1/2″ NPT elbow can be installed or as specified. |
| Capacity | 55,000 BTU input – 44,000 BTU output at maximum burn at 3.5; 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 natural gas will produce over 940 gallons of hot water). |
| Mounting | Floor mounted flanges (included) |
| Clearances | Zero clearance top (blower), bottom and sides. 2″ in back for hook-ups. Enough space in front to remove cover for service. |
| Venting | 2” power vent with proofing switch. (2” stainless flex duct recommended to the outside, and can run up to 15′). |
| Construction | Modular: Three assemblies; gas, electronics and water. Burner: High primary air, 12 element, atmospheric type.Aluminized steel body with stainless flame strips.Heat exchanger: Copper fin tube type with wrap for cooling.Electronics: Plug in, potted, works-in-a-drawer.Burner and flue assembly are stainless steel. |
| Fuel | Natural Gas @ 3.5 WCI |
| Power | Burner: 12 element high primary air, atmospheric type with stainless steel construction.Orifices: Brass # 58 x 12.Gas Valve: Redundant solenoid with integral regulator. |
| Water Temperature | Adjustable |
| Mounting | Mounting flanges included. Must be mounted in accordance with any applicable Coast Guard and ABYC recommendations. As an attended applicance. |
| Safety Features | The ShowerMate 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 (2).ECO high temperature shut off @ 165°F with manual reset.Pressure relief valve at 100 PSI.Power vent must proof fluing before gas valve opens. |
| Disclaimer | Due to continuous product improvement, PrecisionTemp reserves the right to change specifications at any time. |