National Home Inspector Exam Prep Podcast

14 - Fuel Storage and Distribution Systems - Gas and Oil Systems for Home Inspectors

β€’ Charles Bellefontaine β€’ Season 4 β€’ Episode 14

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Master fuel storage and distribution systems in this comprehensive episode covering natural gas, propane, and oil systems that power heating equipment and appliances. While technically separate from plumbing, these systems are often installed by plumbers and require similar inspection skills.

Gas piping materials receive extensive coverage, starting with black steel pipe: sizing, threading requirements, proper joint compounds, and support intervals. Copper gas tubing is explained, including Type K and L requirements, brazing versus soldering, and the critical need for yellow GAS labels every 5 feet.

CSST (Corrugated Stainless Steel Tubing) receives detailed attention as the modern flexible gas distribution method. We explain identification, proper support intervals, bending radius limitations, and crucial bonding requirements for lightning protection. You'll learn the difference between CSST and flexible appliance connectors (FAC) and why this distinction matters.

Installation requirements are covered comprehensively: protection against physical damage, corrosion protection methods, proper routing through walls and floors, burial depths, and prohibited locations. We explain sediment trap requirements, drip leg purposes, and gas shutoff valve locations.

Gas meters and regulators receive thorough coverage, including typical minimum distances to various building components and how to identify properly sized systems. You'll learn clues that indicate potentially undersized gas systems, particularly when appliances have been added after original construction.

Propane tank requirements are explained for permanent tanks, fillable cylinders, and exchange cylinders. We cover proper locations, support requirements, and visual inspection procedures for above-ground tanks.

Oil systems receive complete coverage: supply piping materials, one-pipe versus two-pipe systems, shutoff valve requirements, and filter recommendations. Tank requirements are explained for indoor, outdoor above-ground, and underground installations, including proper support, fill pipe and vent pipe requirements, and service life expectations.

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