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Toyostove Laser 30 Oil Heater   Oil Miser OM-122DW
  Semi-On-Demand Water Heater

Home > Oil Heaters > Oil Miser > OM-122dw

The Toyotomi/Oil Miser water heaters are on-demand, which means there is no costly storage of hot water until it is needed. Like all Toyotomi products they are safe, reliable, and easy to install. You'll love the convenience…and you'll love your new lifestyle.

Save Money! Save Energy! Only Heat Water When You Need It! Never Run Out Of Hot Water Again!


  • Economical: Some consumers have reduced hot water heating costs by up to 50%!

  • No costly storage of hot water when it is not needed…Heat up to 240 gallons per hour

  • Consistent water temperature.

  • Stainless steel heat exchanger!

  • 88% efficient!

  • Proven trouble-free performance

  • Safe: ETL and CETL home and mobile home approved

  • Direct vent (as shown below) or chimney vent

  • Small, compact size

  • Limited 10 YEAR WARRANTY


  •  Heating Method: On-demand (5 gallon heat exchange)
  •  Dimensions (WxHxD): 12.625" x 27.75" x 22.5"
  •  Fuel Type: #1 OR #2 Low Sulphur Fuel Oil ASTM D396 and ASTM D975 Ultra low sulphur fuel oil or 1-K Kerosene
  •  Electric Rating: AC 120V, 60Hz
  •  Fuel Consumption: 1.05 gallon per hour
  •   Heat Exchange Capacity: 5.10 gallons
  •  Weight: 79 lbs (empty)
  •  Fuel System: External tank gravity fed