Combined Energy Services

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Oil Tank Installations / Replacements

Combined Energy Services Fuel Oil

The professionals at CES have been safely installing fuel oil tanks for close to 50 years.  We can work with you to make sure that your fuel storage is safe, environmentally secure and hassle free.

CES is NOT an environmental remediation contractor.  We are a propane & fuel oil supplier that is happy to help our customers deal with the huge liability that can associated with oil tanks, oil tank removal or contaminated dirt removal.

We are here to help make the tank removal process easy BEFORE you have a problem!!

Learn more about oil tanks:

Indoors vs. Outdoor Fuel Oil Tank:

Combined Energy Services Fuel Oil Indoor Tank Combined Energy Services Fuel Oil Outdoor Tank

We can’t recommend enough that if you have the available room to install the tank indoors, it’s by far the best place for it. 


  • Outside tanks are subject to condensation inside the tank with changing temperatures putting water into your oil creating winter service problems & eventual corrosion inside your tank
  • Ice & water dripping from your roof can break oil lines coming from tanks
  • Outside tanks can settle or become unstable, creating an environmental risk
  • Outside tanks require the use anti-gel additives or a kerosene blend in the winter time to keep home heating fuel oil from “gelling” in extremely cold temperatures


Installing Multiple Indoor Tanks:

When installing multiple tanks indoors it's important to remember the following:

Combined Energy Services Installation of Multiple Indoor Fuel Oil Tanks

  • Have individual fill pipes for each tank.  By code, you cannot fill two tanks via one fill pipe since this practice completely fills one tank and then pushes fuel into the second tank causing pressure on the first tank which may cause it to fail, burst or leak from any loose fittings on the top of the tank.

  • One common vent pipe may be installed into the vent alarm / gauge openings.  Be certain, however, because the pipe must be the same size as the fill pipe in order to properly allow the dispatched air from today's fast pumping fuel trucks to be relieved fast enough.  If the vent pipe is too small, the tank can be over pressurized and burst.

Above Ground Fuel Oil Tanks:

Combined Energy Services Above Ground Fuel Oil Tank

Above ground fuel oil storage tanks are the simplest, by far.  They require the least amount of maintenance.  And they are the most environmentally conscious choice when considering oil tanks.  

Today's above ground tanks come in many shapes & sizes to fit every application and space within your home!  Some choices CES Offers:

Standard Above Ground Steel Tank:

275 - 330 gal tank available in upright or horizontal/lay-down
(shown with recommended drip pan)

  • Constructed of ASTM A1011 streel sheet to ensure high quality and years of worry free service.
  • All welded construction
  • Every tank undergoes an external pressurized phosphate wash treatment and is then coated with an application of baking enamel for the best primer coat in the business.
  • Tanks are equipped with 2 convenient lifting handles and leg brackets tapped to standard pipe thread, making installation quick and easy.
  • We design and manufacture our own fittings to ensure high standards are maintained.
  • Tanks range in capacity from 275 - 330 gallons and can be connected in series for ore fuel storage.
 Combined Energy Services Standard Above Ground Fuel Oil Tank 

Fuel Tank Containment Tub:

  • Meets EPA & NFPA requirements for 110% containment.
  • Qualifies as a containment dike for NFPA 31 regulations.
  • Will hold 275 - 330 gallon upright fuel tank.
  • UL Listed.
  • Protects your tank from rain, ice, snow & wind.
  • Attractive addition to any home.
  • Available in 5 colors

Combined Energy Services Fuel Oil Tank Container

Indoor Tank Drip Pan:

Catch a minor leak before it turns into a disaster with a polyethylene drip pan.

  • Easily fits under any 275 - 330 gallon indoor tank.  
  • Long length design encompasses valve & filter area as well, ensuring no leakage outside the tray area.
  • Easy to install under any tank.  
  • Two piece model available for existing tanks.
Combined Energy Services Fuel Oil Indoor Drip Pan

Double Wall Home Heating Oil Tanks:

Roth Double Wall Tank
160, 275 & 400 gal capacity available

These tanks have a polyethylene inner tank that is enclosed by a galvanized, sheet metal outer jacket.  The outer jacket is designed to hold and contain the contents of the inner tanks, should a leak develop.  The space between the inner tank and outer jacket is monitored by a gauge.  

Typically, these gauges use a sponge-like material which expands greatly when it comes in contact with a liquid, be it water or oil.  The material swells and pushes a long, thin rod up so that the rod becomes visible at the top of the tank.  It looks much like a pop-up indicator on some Thanksgiving turkeys that tell you when the turkey is cooked. 

Combined Energy Services Fuel Oil Double Wall Tank

Inspection of Home Heating Oil Above Ground Storage Tanks:

Combined Energy Services Tank Inspections

Home heating tanks can leak due to improper installation or maintenance can adversely affect the environment and can lead to costly cleanups for the homeowner and the State.

To avoid expensive oil spills, install new heating oil tank systems in accordance with National Fire Protection Association Code Standard 31 entitled "Installation of Oil-Burning Equipment" and perform routine maintenance on both old and new tank systems.

The following checklist can aid you in proper maintenance of your home heating tank system. 

CHECKLIST: Ask the following questions and if the answer to any of them is "NO," contact Combined Energy Services.  (It is best to contact a certified professional to correct the problem. DO NOT attempt to correct problems yourself.)

 Are tank legs and foundation stable?

 Is the tank surface free of rust, weeps, or excessive denting?

 Is the area around the filter and valves free of drips or signs of leakage?

 Are the oil lines between the tank and the furnace enclosed in protective tubing? 

 Is the tank protected from falling snow or ice?

 Is the tank vent unclogged and free of ice, snow, corrosion, or insect nests?

 Does the tank system have a vent alarm and is it working properly? (Ask oil delivery person if the alarm whistles when full.)  

 Are the areas around the fill pipe and vent pipe free of signs of spills?

 Are you using an average amount of oil for your system? (Using more oil than normal usually indicates a problem with your system.)

Under Ground Fuel Oil Tanks:

With today’s growing concern about buried fuel storage tanks, the only underground fuel tanks that CES recommends and sells are double wall, polyurethane jacketed tanks. 

While many plumbers and contractors look for the quick, cheap installation – we never recommend nor would we sell a  “plain” steel fuel storage tank for buried service.  All steel in the ground will eventually deteriorate.  It’s not a question of “if”, it’s a question of WHEN. 

Very often these contractors are installing the cheapest tank they can buy, scratch the already too thin protective painted coating and rarely provide electric potential isolation through the use of magnesium anode bags or dielectric unions on piping connections.  These short-sighted quick buck moves put YOU as the property owner at risk in the long term.  One leaking fuel storage tank can lead to tens of thousands of dollars in clean-up costs.  

CES is a leader in environmentally conscious fuel tank installations using only the most advanced technology to protect your property for years to come.  When we install your buried fuel tank, you can rest easy knowing it’s been done right and within environmental compliance regulations. 

The Highland STI-P3A Double-Wall Fuel Tank:

The Highland STI-P3A Double-wall fuel tank is designed for storing home heating oil, kerosene, bio-fuel and diesel fuel.  

This tank combined the strength of steel with a factor-installed corrosion protection system.  The protection system consists of three parts: a coasting with high dielectric properties (100% solids Polyurethane), electrically isolated fittings and sacrificial anodes.  Nylon bushings isolate the tank from piping.  

This tank ensure your highest standards against leaking.

Combined Energy Services Underground Fuel Oil Tank

Fuel Oil Tank Removal, Soil Remediation & Tank Replacement:

If your buried fuel tank is over 20 years old, we highly recommend you consider having the tank removed from service before you have a problem.  CES can handle the process from start to finish protecting you from serious environmental violations and costly clean-ups.

Combined Energy Services Under Ground Fuel Oil tank Removal
Combined Energy Services Under Ground Fuel Oil tank Removal
Removal of 550 gal fuel tank
Replacement of 3000 gal fuel tank

Combined Energy Services Under Ground Fuel Oil tank Removal
Oil Tank Removal at Kauneonga Lake, NY

Combined Energy Services Rotted Under Ground Fuel Oil Tank Combined Energy Services Rotted Under Ground Fuel Oil Tank

Rotten above-ground, outdoor 275 gallon tank that was laying on the ground behind a home.  A 200 gallon leak can cost $50,000 to remove dirt and clean spill of which most home owner's insurance doesn't cover.    

Preventing Under Ground Storage Tank Releases:

EPA SealWhile CES doesn’t recommend the installation of underground tanks unless protected double walled, other tanks are acceptable if installed correctly. 
The USEPA Web-Site below has a wealth of information on the prevention of underground fuel storage tank leaks as well as regulations.  USEPA


"NYS Dept of Environmental Conservation (NYSDEC) Homeowner's Guide to Underground Heating Oil Tanks"

CES Offers:

With 50 years experience, CES is here to help make the tank removal process easy BEFORE you have a problem.  We will send out one of our field service & sales reps to assess your situation.  At your home visit, we will determine:

  • Where the tank is located
  • How much fuel oil is left inside
  • Is there any landscaping to consider
  • Are there any underground lines to worry about

From there we will offer solutions:

  • The cost and/or location for a new fuel oil tank.
  • Quote and options on converting to clean, efficient propane gas heating - and the location of your new propane gas tank (whether it be underground or aboveground).

Read our Blog, "Fuel Oil Tank Removal - Propane Gas Conversion Made Simple with CES" to review the fuel oil tank removal process.

Contact CES to get your oil tank installed today!