Toyotomi Oil Miser OM-180 On Demand Water Heater
A water heater with a boiler attitude for Hydronic Heating*
This versatile on-demand continuous flow water heater with 87% efficiency saves as much or more than the leading cast iron boilers, at half the size!
- Continuous hot water
- Compact size and 81 lb. weight allows for one person installation
- Inlets/outlets on two sides for easy installation
- Choice of direct vent or chimney vent
- Cold start capability
- Flow rate of over 4 gallons per minute with 60°F rise in temperature
- Approximately 180°F maximum hot water temperature
- Very quiet and reliable operation
- Stainless steel heat exchanger and cabinet
- Adjustable temperature differential for cycling control
- Safe: ETL and home and mobile home approved
- Proven trouble-free performance.
- Limited 10 Year Warranty
Specifications:
| Flow Rate/Temperature Rise |
6.2 gal/min (40°F rise), 5.0 gal/min (50°F rise) |
| Ignition | High Voltage Discharge Spark |
| Efficiency | 87.1% AFUE rating |
| Fuel Consumption | 1.05 gal/hr |
| Capacity of Heat Exchanger | 5.10 gal |
| Temperature Differential Settings | 3.6°F, 18°F, 36°F (3 settings by selector switch) |
| Fuel System | External tank*** |
| Dimensions (WxHxD) | 12-5/8 x 27-3/4 x 22-1/2 |
| Weight | 81 lbs. Empty |
| Vent Pipe Hole | 4-3/4 diameter (for flue pipe installation kit) |
| Maximum Length of Vent Pipe System | 10 ft., 3 bends or less (exhaust pipes for flue pipe installation kit) |
| Electrical Rating | 120 Volts AC, 60 Hz |
| Fuel Type | ASTM D3699 K1 Kerosene ASTM D396 No.1 Fuel Oil ASTM D975 Ultra Low Sulphur Diesel (ULSD) ASTM D396 No.2 Fuel Oil (Home Heating Oil) |
| Required Accessories | Flue Pipe Installation Kit or 4 or 5-inch Chimney Adapter Kit |
| Safety Device | High Limit Thermistor, Heat Exchanger Bi-metal Switch, Temperature Fuse, Fusible Link Valve |
| Exhaust Air Temperature | Less than 500°F |
| Nozzle Size | 0.85 GPH |
| Spraying Angle | 60° |
| Spray Pattern | Delavan Type XA |
| Temperature Fuse | 282°F |
| Electric Current Fuse | 5 A (Main Control) 7 A (Auxiliary Port for Circulation Pump., etc.) |
*Check State and Local codes/ordinances for permitted use.
**Heat and vaporized water are produced by the combustion process of this water heater. This rating does not take into account heat loss due to condensation of water vapor.
***External tank to be purchased from local suppliers.
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