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Description
Description
THE OM-122DW SEMI-ON-DEMAND WATER HEATER is a New and improved model from the Oil Miser 148! Enjoy saving money and energy by heating water only when you need it, and never run out of hot water again! Featuring a compact size, and is easily serviceable.
New Features:
- Improved Performance
- Easier Maintenance
- New Safety Features
The Toyotomi/Oil Miser water heaters are on-demand, which means there is no costly storage of hot water until it is needed. Enjoy a consistent water temperature. Like all Toyotomi products they are safe, (including ETL, CETL home and mobile home approved) reliable, and easy to install. You'll love the convenience, and you'll love your new lifestyle.
Required Accessories:
Requires the addition of one of (A) required accessories to complete the unit
A:
- 20476430 Chimney Vent Installation Kit
- 20476440 Direct Vent Installation Kit
Features
Features
Economical
Heats the water you need, when you need it...up to 240 gallons per hour
Consistent water temperature
Stainless steel heat exchanger
Safe: ETL and CETL home and mobile home approved
Direct vent or chimney vent
Small, compact size
Heat exchanger has easy access for servicing from the top without having to disconnect any water pipes
T&P valve will be included
New temperature fuse that attaches to the heat exchanger, to cause shut down in case the top of the heat exchanger gets too hot
New timing sequence for the photo eye.
Limited 10 year warranty
Specifications
Specifications
| Model | OM-122DW |
| Type | Combustion Type – Oil Pressure Vapor Flue Pipe – Forced Flue / Chimney Vent Heating System – Semi-On-Demand Purpose – Domestic Hot Water Heater |
| Ignition | High Voltage Discharge Spark |
| Fuel Type: | ASTM D396 No.2 FUEL OIL (HOME HEATING OIL) ASTM D396 NO.1 LOW SULFUR FUEL OIL ASTM D975 ULTRA LOW SULFUR HEATING OIL/ DIESEL ASTM D3699 K1 KEROSENE |
| Efficiency | 88%(1) |
| Hot Water Input | 148,000 BTU/h |
| Fuel Consumption | 1.05 gal./h |
| Max. Hot Water Temperature | 155°F (approximately) |
| Water Flow Rate/ Temperature Rise: |
6.1 gal./min. (40°F rise) 4.8 gal./min. (50°F rise) 4.0 gal./min. (60°F rise) 3.5 gal./min. (70°F rise) 3.0 gal./min. (80°F rise) |
| Capacity of Heat Exchanger | 5.10 gal. |
| Area of Heat Transmission | 9.7 ft.2 |
| Fuel System | External Tank(1) Gravity Fed |
| Dimensions (W x H x D) | 12-5/8" x 27-3/4" x 22-1/2" |
| Weight | 79 lbs. Empty |
| Vent Pipe Hole | 4-3/4" diameter |
| Max. Length of Vent Pipe | 10 ft., 3 bends or less |
| Electric Rating | 120 Volts AC, 60 Hz Ignition - 120W Burning - 98W |
| Required Accessories | Fuel filter, Flue pipe installation kit (Part #20476440) or Chimney installation adapter kit (Part#20476430 - 5 inch kit or #20476415 - 4 inch kit) |
| Exhaust Air Temperature | Less than 500°F |
| Nozzle | Quantity of Vapor - 0.85 GPH Delavan type XA Spraying Angle - 60° Spray pattern: Delavan Type XA |
| Temperature Fuse | 282° F |
| Electric Current Fuse | 5A |
(1) 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.
(2) External tank to be purchased from local suppliers.
Literature
Support
Support
Manuals: Operation and Installation
Owner's Manual Oil Miser OM-122DW Installation
Owner's Manual Oil Miser OM-122DW Operations
Owner's Manual Water Heater Extension Flue Pipe
Support Videos
Trouble Shooting and Maintenance
Fuel Oil Line Parts List, Tank to Unit
Oil Miser 148, 180 and Toyotomi BS36UFF: How to Clean the Heat Exchanger
Oil Miser 148, 180 and Toyotomi BS36UFF: Routine Burner Service
Oil Miser: Plugged Heat Exchanger
Setting Fuel Pump Pressure BS36UFF, OM-148, OM-180
Warning Lamp 25 Second : BS-36UFF, Oil Miser 148 & 180
Warning Lamp 3 Second : BS-36UFF & Oil Miser 148