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NORA Oilheat Technicians Manual

Chapter 3 Oil Tanks and Piping Chapter 3—Oil Tanks and Piping 3-7 or in an enclosure to protect it from the elements. The outside oil line should be connected through the top of the tank and insulated to where it enters the building. Once the line is inside, it should be connected to a thermal shut-off valve. The oil filter should NOT be installed outside. It can be installed right after the valve where the line enters the building or at the burner. Underground tanks Environmental regulations and insurance concerns have greatly reduced the number of inground installations, Figure 3-6, and many homeowners with buried oil tanks have replaced them with above-ground tanks. Unless there is no acceptable location available, NORA recommends that all new oil tanks be installed above ground. Figure 3-5: Outside above ground tank Figure 3-6: Typical older underground installation Vent Line 1 ¼" Minimum 2" Fill Pipe Inspection Port Swing Joint Fuel Storage Tank Tee Swing Joint Anti-Siphon or Ball Check Valve ½" Copper Tubing Valve Oil Filter Loop Oil Lines


NORA Oilheat Technicians Manual
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