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OIL STORAGE TANKS

ABANDONING OIL TANKS
ABOVE GROUND OIL TANK INSPECTIONS
  INSPECT VISIBLE OIL TANKS
  OIL FILL & VENT
  OIL TANK SUPPORT
  ABANDONED INDOORS
  ABOVEGROUND OUTDOORS
    Indoor Tanks Used Outside
    How Water Enters Oil Tanks
    Problems of Water in Oil Tanks
    Additives for Outdoor Oil Tanks
  OIL TANK HISTORY REVIEW
  OIL TANK CHECKLIST
AFUE DEFINITION, RATINGS
AGE of OIL TANK
ANODES & DIP TUBES on WATER HEATERS

BIOGAS PRODUCTION & USE
BOILERS, HEATING
BURIED OIL TANK ADVICE
BURIED OIL TANKS, FINDING

COMBUSTION PRODUCTS & IAQ

DEFINITION of Heating & Cooling Terms
DIAGNOSE & FIX HEATING PROBLEMS-BOILER
DIAGNOSE & FIX HEATING PROBLEMS-FURNACE
DIRECT VENTS / SIDE WALL VENTS
DIRECTORY of OIL TANK EXPERTS

FILTERS, OIL on HEATING EQUIPMENT
FIRE SAFETY CONTROLS
FLAME COLOR, BLUE vs YELLOW COMBUSTION
FLOATING UP OIL STORAGE or SEPTIC TANKS
FLOODED HEATING EQUIPMENT REPAIR
FLOODED WATER HEATER REPAIR
FUEL OIL TYPES & CHARACTERISTICS
FUEL UNIT, HEATING OIL PUMPS

GALVANIC SCALE & METAL CORROSION
GAUGES ON HEATING EQUIPMENT

HEAT LOSS in buildings
HEAT TAPES, Heat, Insulation prevent Freeze-Up
HEATING COST FUEL & BTU Cost Table
HEATING COST SAVINGS METHODS
HEATING OIL CLOUD WAX GEL POINT
HEATING OIL EXPOSURE HAZARDS, LIMITS
HEATING OIL - OLD, USEABLE?
HEATING OIL PIPING TROUBLES
HEATING OIL SHELF LIFE
HEATING OIL SLUDGE
HEATING OIL TANKS
HEATING OIL USAGE RATE
HEATING SYSTEM INSPECT DIAGNOSE REPAIR
HEATING SYSTEM NOISES
HOME BUYERS GUIDE TO OIL TANKS
HOT WATER HEATERS

NO HEAT - BOILER
NO HEAT - FURNACE
NOISE CONTROL for HEATING SYSTEMS
NOISES COMING FROM WATER HEATER

ODORS & SMELLS DIAGNOSIS & CURE
ODORS FROM HEATING SYSTEMS
OIL BURNERS
OIL BURNER FUEL UNIT
OIL BURNER INSPECTION & REPAIR
OIL BURNER NOISE SMOKE ODORS
OIL BURNER NOZZLE & ELECTRODES
OIL BURNERS, RETENTION HEAD
OIL BURNER SOOT & PUFFBACKS
OIL FILTERS on HEATING EQUIPMENT
OIL FILTER MISSING
OIL FUEL TYPES & CHARACTERISTICS
OIL & GAS PIPING
OIL LINE CLOGGING FIX
OIL LINE QUICK STOP VALVES
OIL LINE SAFETY VALVES
OIL ODORS, LEAKY OIL TANK PIPING
OIL PUMP FUEL UNIT
OIL SPILL CLEANUP / PREVENTION
OIL TANKS
OIL TANK ABANDONING PROCEDURE
OIL TANK AGE
OIL TANK, BURIED, ADVICE
OIL TANK, BURIED, FINDING
OIL TANK FAILURE CAUSES
OIL TANK FAILURE RATES
OIL TANK FLOATING UP
OIL TANK GAUGES
OIL TANK INSPECTION, ABOVE GROUND
OIL TANK INSPECTION REPORTS
OIL TANK LEAKS & SMELLS
  OIL TANK LEAK ENVIRONMENTAL ISSUES
  FREQUENCY of OIL TANK LEAKS
  HOME INSPECTOR OIL TANK REPORT
  OIL TANK LEAK IMPACTS
  OIL TANK LEAK CAUSES
  OIL TANK LEAK CLEANUP GUIDE
  OIL TANK LEAK REPORTING REGULATIONS - ALL
  OIL TANK REGULATIONS - CANADA
  OIL TANK LEAK REPORTING in NEW JERSEY
  OIL TANK LEAK & SIZE REPORTING REQUIREMENTS
  OIL TANK LEAK TESTING
  LEAKY OIL TANK FILL PIPES
  OIL TANK LEAK REPORTING BASICS
  WHAT IF AN OIL TANK IS LEAKING?
OIL TANK LEGAL ISSUES
OIL TANK LIFE
OIL TANK PIPING & PIPING DEFECTS
  CAULK OIL PIPE ENTRANCES
  FIRE SAFETY CONTROLS
  HEAT TAPE HAZARD ON OIL TANK
  OIL FILL & VENT
  OIL FILL PIPE EXPOSED
  OIL FILL / VENT PIPE CAP LOST
  OIL FILL & VENT PIPES UNDERSIZED
  OIL FILTERS on HEATING EQUIPMENT
  OIL FILTER MISSING
  OIL LINE QUICK STOP VALVES
  OIL LINE SAFETY VALVES
  OIL LINE CLOGGING FIX
  OIL LINE EXPOSED
  OIL LINE SINGLE, UP HIGH
  OIL LINE SINGLE ON BURIED TANK
  OIL ODORS, LEAKY OIL TANK PIPING
  DUAL OIL LINE 2 VALVES
  DUAL OIL TANKS - PIPING
  OIL LINE LEAKS
  OIL LINE QUICK STOP VALVES
  OIL LINE SAFETY VALVES
  OIL TANK FILL & VENT LINES APART
  OIL TANK GAUGES
  OIL TANK VENT PIPE MISSING
OIL TANK PRESSURE
OIL TANK REGULATIONS
OIL TANK REMOVAL COs
OIL TANK REMOVAL FINANCIAL AID
OIL TANK REPORT LANGUAGE
OIL TANK SAFETY
OIL TANK SLUDGE
OIL TANK STANDARDS
OIL TANK STANDARDS - Detailed List
OIL TANK SPILL CLEANUP / PREVENTION
OIL TANK SUPPORT
OIL TANK TESTING
OIL TANK TESTING COs
OIL TANK WATER CONTAMINATION
  Water in Oil Tanks, Problems
  How Water Gets in Buried Oil Tanks
  How Water Gets in Above-Ground Oil Tanks
  How to Keep Water Out of Oil Tanks
  How to Measure Oil Tank Water Contamination
  How to Remove Water from an Oil Tank
OIL TANK WATER REMOVAL

SOOT on OIL FIRED HEATING EQUIPMENT
STAIN DIAGNOSIS on BUILDING INTERIORS

WATER HEATERS

More Information

Photograph of a in-home oil tank - notice the small diameter vent line? Guide to Indoor Residential Heating Oil Storage Tanks - ASTs Inspecting for Oil Tank Leaks
InspectAPedia®  -      

  • How to inspect above ground indoor oil tanks for leaks, piping errors, and fire clearances
  • Common oil storage tank and oil piping defects and leak risk points
  • Indoor oil storage tank inspection procedures & warnings
  • Leaky indoor oil storage tanks that you should not even touch
  • Questions & answers about indoor home heating oil storage tanks: installation, inspection, leaks, piping, troubleshooting

Indoor oil storage tank inspection guide: advice and example photos for the visual inspection of above ground oil tanks for leaks and damage, improper piping, wrong location, bad fire clearances, including these details: damaged or leaky oil storage tanks, improper oil tank piping, valves, and indoor-type oil tanks located outdoors. Here are photographs & explanation of some important indicators of oil storage tank condition that any home owner or home inspector can examine when an oil storage tank is visible and accessible inside or at a building.

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INSPECT VISIBLE TANKS - Inspecting the Oil Storage Tank Exterior

To complete the oil storage tank and oil piping visual inspection topics, see OIL TANK WATER CONTAMINATION and OIL TANK LEAKS & SMELLS and OIL TANK PIPING & PIPING DEFECTS. Also see OIL BURNER INSPECTION & REPAIR.

If an oil or other fuel storage tank is above ground and accessible for visual inspection it can and should be inspected for evidence of leaks or damage. Here are some inspection pointers for heating oil tanks.Is the tank exterior sound, without leaking seams or excessive rust? Is there a patch or other evidence of a history of leaking?

In the photo at above-left, note the wet bottom of the tank? The inspector needs to decide if the oil on the tank exterior is from weeping at the fill or vent pipe fittings, from leaks at the oil line exiting the tank.

We were concerned about the evidence of seepage around the bottom left on this tank.

That oil stain does not seem to connect to the tank fill and vent fittings. The oil tank may have a perforation or an opening seam.

What about the next photo shown at left ? a leak at fuel line or at the Fire-o-Matic shutoff valve, or perhaps due to an actual tank perforation?

The size and wetness of the oil spill on this basement floor is a bit large to blame on a drippy fire safety valve.

But notice that in the upper portion of the photo the oil tank itself looks new. This oil spill was from the previous oil tank installed in this location.

Also look for water entry around the oil tank and don't confuse a water leak for an oil leak. Or more difficult, both leaks may be occurring at the same location. Look closely, and if necessary, touch, sniff, and sample the leak substance.

Leaky Oil Tanks That You Should Not Touch

This last photo shows an actual tank leaking at its bottom from a perforation.

Memorize this photo and look under oil tanks when you're inspecting above ground indoor oil storage tanks.

If you see a tarry "stalactite" drip formation on the bottom portion of an oil storage tank, the tank is leaking, has perforated, and can leak catastrophically at any moment.

Watch out: do not pick, poke, or even touch an oil tank that looks like this. The risk is that you perforate the already thin tank bottom, leading to a much bigger and more costly oil leak mess.

What are the Clearance Distances Required for Indoor Oil Storage Tanks?

Oil storage tank clearance distances requiredFor fire safety indoor oil storage tanks should not be located too close to oil burners or other heaters. Typical indoor clearance requirements specify that the oil storage tank should be 10 feet from the oil burner. Some communities permit the oil tank to be located closer, just 5 feet away from the nearest oil burner. You can see this design in our sketch at left, provided courtesy of Carson Dunlop.

If you cannot meet this distance requirement your local building officials or fire officials may approve the oil tank installation if you provide a fire barrier between the oil tank and the burner.

Tanks should also be located where they will not be damaged, such as by being struck by a vehicle entering a garage.

In some communities indoor oil storage tanks located in a garage must be protected against possible vehicle damage by steel posts or similar means.

In some communities indoor oil storage tanks must also be secured against possibly falling or tipping over, such as by using angled steel piping set into the floor and ceiling or floor and wall around the oil tank.

Questions & Answers regarding this article

Questions & answers about indoor home heating oil storage tanks: installation, inspection, leaks, piping, troubleshooting

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ABOVE GROUND OIL TANK INSPECTIONS
  INSPECT VISIBLE OIL TANKS
  OIL FILL & VENT
  OIL TANK SUPPORT
  ABANDONED INDOORS
  ABOVEGROUND OUTDOORS
    Indoor Tanks Used Outside
    How Water Enters Oil Tanks
    Problems of Water in Oil Tanks
    Additives for Outdoor Oil Tanks
  OIL TANK HISTORY REVIEW
  OIL TANK CHECKLIST

  • Above Ground Oil Tanks Inspection Checklist, an Oil Company's advice
  • Carson, Dunlop & Associates Ltd., 120 Carlton Street Suite 407, Toronto ON M5A 4K2. (416) 964-9415 1-800-268-7070 info@carsondunlop.com. Thanks to Alan Carson and Bob Dunlop, for permission to use illustrations from their publication, The Illustrated Home which illustrates construction details and building components. Carson Dunlop provides home inspection education including the ASHI-adopted Home Inspection Training Program (home study course), publications such as the Home Reference Book, report writing materials including the Horizon report writer, and home inspection services. Alan Carson is a past president of ASHI, the American Society of Home Inspectors.

Books & Articles on Building & Environmental Inspection, Testing, Diagnosis, & Repair

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