Renewal—Cohler Fuel Profile

By Stephen Bennett

Cohler Fuel Oil Co. was established 76 years ago and now Allan Cohn, the third generation of his family to run the business, said he is looking to Bioheat as “the gateway to a renewable energy future.”

Cohn said, “I actually trademarked that line.” He had the line included on custom-made decals to promote Bioheat. He trademarked it to keep it away from the natural gas industry, Cohn said. But that doesn’t mean he won’t, in the best interests of the fuel oil industry, share it: “I am happy to share it with anyone in the industry,” Cohn said. “If anyone is interested in using our custom made Bioheat fuel decals for their trucks, vans or boiler labels, they should contact us at”


Dear Valued Customer…

We would like to take this opportunity to thank you for putting your trust in us, and for letting us serve you. As you know, it was an unusually long, tough winter, and we all worked hard to make sure that you were warm and safe. While your gallons consumed were higher due to the extreme cold weather, fuel oil prices have dropped and have remained low.

So much for all the “experts” who used to say that oil prices will “never come down”. Prices have come down largely due to the huge oil production right here in the United States and Canada, and some believe that oil prices may remain low for the next decade or more. On the other hand, natural gas prices are expected to rise when they start exporting liquefied natural gas (LNG) to Europe and Asia in the near future.

For the last three seasons, the oil that we delivered has been Bioheat fuel®, a blend of 5% biodiesel and pure low-sulfur heating oil. Bioheat fuel® has been 100% successful, providing cleaner fuel and cleaner combustion to reduce boiler problems and save you money. Whether it’s for a heating system upgrade or new home construction, Bioheat® is the best fuel for your home heating system.

The facts remain that modern Oil Heat and Bioheat fuel®, will always have the important advantages of maximum safety, maximum warmth (even in the coldest weather), and the responsive service, that only a full-service company like Cohler can provide. Remember, oil is non-explosive, and has a much lower risk of carbon monoxide exposure – clean Oil Heat and Bioheat fuel®, really do heat best !

Please Call Us This Month To Schedule Your FREE “Burner Tune-Up”

Keep your boiler running reliably and as efficiently as possible with a yearly tune-up. Free tune-ups can only be scheduled during weekdays, until September 25th. Please DO NOT wait until September to first make your appointment, since we may not have the time to do a complete job, if at all.

A reliable chimney cleaner should ALSO be called at this time, to clean and vacuum your chimney bottom, and the inside of your boiler as well. A clean boiler and chimney (and a “burner tune-up”) uses less fuel, and operates with fewer problems. Get an estimate, and remember that cleaning the chimney from the roof down, chimney caps, and liners, are usually not necessary.

Chimney companies that we have used, and been satisfied with, are:“Ray and Sons” (646) 436-0278, and for buildings over 24 units, we have also used “Benson” (718) 919-4500.

If there is any way that we can better serve you, or if you have any questions, please call us anytime. For some energy-saving tips, please check out our informative web site. Best wishes for a pleasant summer!

Ben and Allan
Cohler Fuel Oil Co.

Save Money With These Cohler Services

  1. Annual Oil Burner Tune-Up – Free for regular full-time customers of Cohler. This service ensures that your boiler is operating cleanly, safely, and efficiently. We may do any of the following as part of this service:
    • Check fuel flow or suction line vacuum gauge
    • Replace fuel filter and/or strainer
    • Inspect or replace nozzle
    • Check and/or clean flame sensor and air gate
    • Inspect and adjust ignition electrodes
    • Check and/or clean combustion turbulator
    • Inspect flame light-off and flame characteristics
    • Inspect condition of combustion chamber if possible
    • Check/clean/replace water gauge glass and washers
    • Lubricate the water circulator pump
    • Take a combustion efficiency and draft test if necessary
  2. Boiler Sections or Tubes and Chimney Bottom Inspection – This equipment should be inspected yearly. Residential equipment should typically be cleaned every other year. Commercial equipment should usually be cleaned every year.
  3. Boiler Enhancement – Some older boilers are really well designed, and can be modified to operate more efficiently by installing a high-efficiency oil burner into that boiler. Depending on what older model boiler you have, additional savings may be obtained by adding a separate hot water storage tank.
  4. Boiler Replacement – Some older boilers are just so inefficient that they should be replaced with a high-efficiency boiler to achieve significant savings. Cohler is a licensed NYC installer for oil burners and oil-fired boilers and hot water tanks.

Contact us if you require any of these services.

How To Replace Hissing Air Valves to Save Money on Heating Costs

Replace air valves on steam heating radiators (or steam mains) if they constantly hiss-out steam when the radiator is already hot, or if the radiator does not get completely hot. Radiator shut-off valves and unions should not hiss at all.

Use only Hoffman or Gorton air valves. You can purchase these at plumbing and heating supply houses such as: 4th Ave Burner & Heating Supply and Marine Park Hardware.

To change an air valve:

  1. Make sure the boiler is turned off, and that the radiator is cool.
  2. Turn the old air valve counter-clockwise while looking straight at the valve, and install the correct new valve by screwing it into the radiator threaded hole clockwise until firmly in place, with the venting hole of the air valve on top.

radiator shut-off valve - Cohler Fuel Oil
Gorton Air Venting Valve for a Steam Radiator
Pipe compound is generally not used on the threads of the air valve, however Teflon®-type tape can be used on the threads of the air valve as long as it does not obstruct the inner hole of the air valve inlet).

Use slower or faster venting air valves on steam radiators to obtain even heating throughout the building. It’s best to leave steam radiator shut-off valves in the 100% open position to avoid water buildup and loud banging noises.

Three Signs Your Boiler Is Costing You Money

  1. The boiler takes over 45 minutes to get heat to the top floor. This is a sign that your boiler is operating inefficiently and wasting fuel.
  2. Your boiler water feeder comes on often. There may be a boiler or tube leak, or a boiler return pipe leak.
  3. There’s a thick plume of steam vapor coming from your chimney. Your boiler may have a leak on top, above the normal water level.

Contact us for service if you’re experiencing any of these issues with your boiler.

Install a Thermostat to Save Money on Heating Costs

Thermostat - Cohler Fuel OilA digital set-back thermostat will allow you to automatically raise and lower the heat, so that you don’t use any unnecessary fuel to heat your home or business when you’re not home, or when you’re sleeping.

In semi-commercial and commercial systems, consider adding a thermostat with a separate remote temperature sensor, with the main thermostat located in a secure location. This system can also be used in combination with many heat-control panels that don’t have inside room temperature sensors, to prevent overheating the building.

For most homes we recommend 1) White-Rodgers thermostats (usually model # 1F80-361 – reliable, simple to operate, and reasonably priced) or Honeywell thermostats (usually the 7400 series).

If you are mechanically inclined and want to install a new “heat only” thermostat on your own (follow installation instructions), you can purchase Honeywell, White-Rodgers, and Emerson thermostats from: H & L heating supply and 4th Ave Burner & Heating Supply.

Save Money on Heating Costs with These Do-It-Yourself Tips

Here are some steps you can take on your own to make sure your heating system is working as efficiently as possible:

  • Repair leaky hot water faucets promptly. Even a small drip wastes gallons.
  • Insulate heating pipes and heating mains in an unfinished basement or unheated crawl space. Foam pipe insulation can be used to insulate domestic hot water pipes to faucets etc. However, heating pipes must be insulated with paper-fiber-coated fiberglass pipe insulation. You may want to ask an expert for help with handling fiberglass insulation, as proper safety precautions must be taken (e.g. wearing a dust mask).
  • Radiator shutters can be opened or closed on baseboard hot water heating, and thermostatic radiator valves can also be installed to obtain even heating.