Great River Fuel Oil Co.
    Don't Shiver, Call Great River
(631) 581-2539


       We are proud to say that as our company has grown over the last 30 years we have not lost our personal touch with the customers and pride ourselves on our "Old Fashioned" way of operating our establishment.  Many of our loyal long standing customers have stayed with us over the years due to the personal service we offer to each and every one of them.          


Water Heaters


Water heaters are usually large metal cylinders found in the laundry room or basement of most homes. Some newer heaters with interesting features include tankless heaters and hybrids. Some newer heaters use an indirect heating relationship with a nearby home heating system. The traditional design, however, is a drum full of water, equipped with a heating mechanism on the bottom and thermostatic control to regulate hot water delivery.

What is a tankless hot water heater?

A tankless hot water heater is a water heater that provides hot water on demand rather than storing it in a tank. The benefits of this technology are efficiency, effectiveness and cost. Water is not heated to a temperature in a tank and kept at that temperature, so energy is only expended when there is a need for water to be heated. Standard water heaters with tanks waste most of their energy while sitting unused, losing heat through poor insulation and the exhaust pipe. Tankless, on-demand water heaters avoid this energy loss because there is no tank.

What is a hybrid hot water heater?

Hybrid water heaters use the technology of both conventional tank heaters and tankless water heaters. Different hybrid water heaters work in different ways; some have extra pipes to warm the water quickly and efficiently and some use new technology such as fuel cells to heat water, using less energy. The key reason to consider a hybrid water heater, despite the higher up-front investment, is the savings it provides due to increased efficiency.

At what temperature should I set my hot water heater?

The water heater's thermostat controls the temperature of the water inside the tank. Normally, the available temperature range is 120 to 180 degrees Fahrenheit. Most manufacturers recommend 120 to 140 degrees – hot enough for household use but not so hot that it can pose a burn risk. If you have children, it’s a good idea to stay closer to the lower end of the range.

The lower you set your water heater temperature, the more energy you will save. Don’t forget to dial back the thermostat if you leave your home for an extended period.

I need a hot water heater. How do I get started?

Similar to other home heating systems, your hot water heater can be powered by different fuels and technologies. There are gas and oil-fired heaters. There are electric heaters and there are indirect models which draw on another heating system. Your Great River consultant can help you navigate the choices to select a model and technology that works best for your home and family.

We provide the following products from leading manufacturers in this field.




  • 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%!
    • Heats the water you need, when you need it…up to 240 gallons per hour!
    • Consistent water temperature.
    • Stainless steel heat exchanger!
    • 87% 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 us about Toyotomi/Oil Miser water heaters, today.

Oil-Fired Residential and Light-Commercial Water Heaters

Bock water heaters are the USA’s most popular oil-fired residential and commercial oil-fired appliances. Capacities range from 20 gallons to 113 gallons with inputs from 60,000 to 173,000 BTU.

The Bock® Model 32E water heater is the market leader in Energy Efficiency with a .63EF rating and 170 gallons First Hour Delivery. It meets the Department of Energy’s new higher energy standards coming in 2015 – no comparable competitive model meets those standards.

  • Standard 5-year tank/heat exchanger residential warranty.
  • Single Turboflue® helical-fin heat exchanger.
  • Compact Model 20e water heater fits tight spaces with low overhead clearance.
  • Certified for use with Carlin® and Beckett® burners.

Storage Booster Tanks

The 40, 50 and 80-gallon capacity of our storage booster tanks meets the hot water demands of today’s modern households. Manufactured for maximum durability and versatility, storage booster tanks from John Wood® feature our exclusive, patented innovation – TankSaver® – which impedes corrosion and extends tank life. Our models permit a continuous flow of domestic hot water year round, from the tankless coil installed in existing hydronic boilers.