Water Heating

Toyotomi OM-122DW

Semi On Demand Water Heater

Save energy and money with the Toyotomi OM-122 Semi On-Demand Water Heater. On-demand water heaters only heat water when you need it and never run out of hot water. Ultra efficient, compact, and quiet, Toyotomi on-demand water heaters are rated to heat up to 240 gallons per hour!

Toyotomi OM-122DW Features & Benefits

• Economical: Some consumers have reduced hot water heating costs by up to 70
• Heats the water you need, when you need it, up to 240 gallons per hour!
• Consistent water temperature
• Stainless steel heat exchanger
• 88% efficient
• Proven trouble-free performance
• Safe: UL, CUL, home and mobile home approved
• Direct vent (as shown below) or chimney vent
• Small, compact size
• Limited 10 Year Warranty
• Learn more at ToyotomiUSA.com

Type

Combustion Type – Pressure Vapor
Flue Pipe – Forced Flue
Heating – Instantaneous
Source of Water – Direct Connection to Main Supply

Ignition

High Voltage Discharge Spark

Efficiency

88%¹

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)

Weight

86 lbs. empty

Hot Water Output

148,000 BTU/hr

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 gallon

Area of Heat Transmission

9.7 ft.2

Dimensions (WxHxD)

12-5/8″ x 27-3/4″ x 22-1/2″

Vent Pipe Hole

4-3/4″ diameter

Maximum Length of Vent Pipe System

10 ft., 3 bends or less

Required Accessories

Fuel Strainer, Temp. & Pressure Relief Valve and Flue Pipe Installation Kit or 4 or 5-inch Chimney Adapter Kit

Exhaust Air Temperature

Less than 500°F

Nozzle

Quantity of Vapor – 1.1 GPH
Spraying Angle – 60°

Electric Current Fuse

5A