

Ideal for boats, hospitals, condos, cabins, studios, apartments, clinics, schools, and pool house - anywhere you need hot water! Choose from among different kilowatt and amperage models in the menu: S-4, S-7, S-9, S-12, S-14 and S-16
Features
• Saves water • No venting required • Saves valuable space • New flow technology • Waterproof control pad • Select output temperature from 82°F to 140°F • Endless supply of hot water • Great for beach/marine locations |
• Digital display in Fahrenheit or Celsius |
Tank vs. Tankless Heaters
Descriptions | 40 Gallon Tank | Tankless Heater |
Estimated Lifespan | 10 Years | 20 Years |
Energy Efficiency | 0.85 EF | 0.99 EF |
Hot Water Supply | 70% of Capacity | Endless Supply |
Kilowatt Usage / Yr. | 4857 Kw/Hrs. | 2618 Kw/Hrs. |
Heat recovery | Yes | No |
Standby Loss | 20% | No Loss |
12 Month Operation Cost | $556.00 | $309.00 |
Specifications
S-4, S-7 | S-9, S-12, S-14, S-16 | |
Dimensions | 11.5" x 7.7" x 3.5" | |
Weight | 6.5 lbs. | 8 lbs. |
Cover | ASTM Stainless Steel | |
Body/Heat Exchanger | ASTM 304 Stainless Steel | |
Element | 1 Brass Flange, Copper rod |
2 Brass Flanges, Copper rods |
Pipe fittings | 1/2" compression | |
Activation flow rate | 0.5 gallons per minute | |
Operation Pressure | 25 to 150 PSI | |
Warranty | 1 year on heating elements. 3 years on components. Limited lifetime on heat exchanger |
Temperature in °F at given flow rates | ||||||||||||||
Model | KW | Volts | Amps | Breaker size |
HZ | AWG# | Current Phase |
1 GPM |
1.5 GPM |
2 GPM |
2.5 GPM |
3 GPM |
3.5 GPM |
4 GPM |
S-4 | 3.5 | 120V | 30 | 30 | 50/60 | 10-2 | Single | 24 | - | - | - | - | - | - |
S-7 | 6.7 | 240V | 30 | 30 | 50/60 | 10-2 | Single | 48 | 32 | 24 | - | - | - | - |
S-9 | 8.9 | 220V | 41 | 40 | 50/60 | 8-2 | Single | 61 | 41 | 32 | 24 | 20 | - | - |
S-12 | 12.4 | 220V | 56 | 60 | 50/60 | 6-2 | Single | 82 | 54 | 41 | 33 | 27 | 23 | 20 |
S-14 | 13 | 220V | 59 | 60 | 50/60 | 6-2 | Single | 95 | 62 | 48 | 38 | 32 | 27 | 24 |
S-16 | 16 | 240V | 66 | 70 | 50/60 | 6-2 | Single | 109 | 73 | 54 | 44 | 36 | 31 | 27 |
Documentation
User Manual
Product Warranty
Product Specifications
Frequently Asked Question ("FAQ")
Q1: Can I install this outdoors?
A1: In the manufacturer's user manual (link above) it states, "Product is also IPX4 water proof." IPX4 is an international waterproof rating that means the unit can be exposed to rain. Also, in the manual's Features section it states, "Water Proof Control Pad. Great for Marine, and or Beach Locations".
Note that the installing electrician must ensure that the wiring connection to the unit is properly insulated from moisture. Also, before the unit is exposed to freezing temperatures, be sure to remove all moisture from the heater's waterways.
Q2: Which heating elements should I buy when I need to replace them? If they are different wattages, in which slot do each go?
A2: Below is the guide:
M-12 and S12: One 6000 Watt element on the right side and one 5000 Watt element on the left side.