Skip to product information
1 of 5


Toyotomi OM-122DW Semi-On-Demand Water Heater

Toyotomi OM-122DW Semi-On-Demand Water Heater

Regular price $3,499.99
Regular price Sale price $3,499.99
Sale Sold out
Shipping calculated at checkout.

*Shipping for all items will be charged separately after the product shipping has been calculated based on shipping address. If shipping address is different than the billing address then please send an email to with the shipping address.


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                               

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.

Shower yourself with savings year after year. Ask your local dealer about Toyotomi/Oil Miser water heaters, today.

View full details