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OIL STORAGE TANKS
ABANDONING OIL TANKS
AGE of OIL TANK
ANODES & DIP TUBES on WATER HEATERS
BURIED OIL TANK (UST) GUIDE
BURIED OIL TANKS, FINDING
COMBUSTION PRODUCTS & IAQ
DEFINITION of HEATING & COOLING TERMS
DIAGNOSE & FIX HEATING PROBLEMS-BOILER
DIAGNOSE & FIX HEATING PROBLEMS-FURNACE
DIRECTORY of OIL TANK EXPERTS
FILTERS, OIL on HEATING EQUIPMENT
FIRE SAFETY CONTROLS
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 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 TYPES & PROPERTIES
HEATING OIL USAGE RATE
HEATING SYSTEM NOISES
HOME BUYERS GUIDE TO OIL TANKS
NOISE CONTROL for HEATING SYSTEMS
NOISES COMING FROM WATER HEATER
ODORS GASES SMELLS, DIAGNOSIS & CURE
ODORS FROM HEATING SYSTEMS
OIL FILTERS on HEATING EQUIPMENT
OIL FUEL TYPES & CHARACTERISTICS
OIL FILL PIPE LEAKS
OIL SPILL CLEANUP / PREVENTION
SOOT on OIL FIRED HEATING EQUIPMENT
STAIN DIAGNOSIS on BUILDING INTERIORS
THERMAL TRACKING & HEAT LOSS
VIDEO GUIDES: Heating System Videos
VIDEO GUIDES - InspectAPedia.com
WINTERIZE A BUILDING
Oil tank piping: how to hook up fill & vent & oil line piping on duplex or dual oil storage tanks: this document describes the typical piping arrangements for heating oil storage tanks: how the oil tank fill, vent, and supply piping are arranged when two oil storage tanks (or more) are installed at a building. See OIL TANK PIPING & PIPING DEFECTS and also see text and oil tank defect photographs at Visual Inspection of Oil Storage Tanks.
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Quick Guide to Fill and Vent Piping for Duplex Heating Oil Storage Tanks
At buildings where two heating oil storage tanks are installed, typically indoors, this Audel Oil Burner Guide sketch shows the proper arrangement of fill piping, vent piping, and oil line piping leaving the tanks.
We have seen an alternative arrangement that provides a fill line only to the first tank, with the second tank filled by a second pipe exiting the top of the first oil tank - not an arrangement we recommend as this forces the first oil tank to be fully pressurized at the oil delivery truck pressure during fill-up of the second tank.
The piping shown in this Audel sketch is better. [Click to enlarge any image]
Thanks to Arlene Puentes for technical editing, March 2010.
Our photograph of duplexed or a "pair" of oil storage tanks in a residential basement shows (left) [click to enlarge the photo) shows the most common oil fill, vent, and copper oil supply piping arrangement when two oil tanks are installed side by side at a building.
At installations that include a fire safety valve at the oil tank (useful for service in this case) we like to see an additional fire safety valve at each oil burner oil supply line since that's a spot where a fire is more likely to occur. See FIRE SAFETY CONTROLS.
As Carson Dunlop Associates' sketch (left) demonstrates,
Thanks to reader D. B. Harlow for asking about how to make the proper connections to have two storage tanks, in parallel.
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