Fuel Storage System Design: Codes, Sizing & Safety

Fuel storage sizing and layout decisions get made early in a project — often before the combustion system design is finalized — and mistakes here are expensive to fix later. Whether it’s a natural gas regulator station, a propane tank farm, or an oil storage system feeding an industrial furnace, the design has to satisfy code setback requirements, capacity needs, and operational safety all at once.

Key Design Inputs

• Peak fuel demand from all connected burners and equipment, not just nameplate ratings
• Storage duration required for supply continuity (hours, days, or a full production run)
• Fuel type — natural gas, propane, or liquid fuels each carry different code requirements
• Site constraints — setback distances from property lines, buildings, and ignition sources

Code Requirements That Drive Layout

CSA B149.2 governs propane storage and handling in Canada, while CSA B149.1 covers natural gas installations. Both set minimum separation distances between storage vessels, buildings, and vehicle traffic areas. These setbacks are frequently the limiting factor on tight industrial sites — not tank capacity.

Safety Systems That Belong in the Design

• Excess flow valves and emergency shutoff valves
• Leak detection where required by fuel type and quantity
• Secondary containment for liquid fuel storage
• Bollards or physical protection in vehicle-accessible areas

A Common Sizing Mistake

Sizing storage to nameplate burner capacity without accounting for simultaneous demand across multiple pieces of equipment is one of the most common errors we catch during design review. A facility running several furnaces or dryers off one fuel system needs a diversity factor applied — not a simple sum of every nameplate rating.

Next Steps

Fuel storage design sits at the intersection of code compliance, site planning, and combustion system performance. Getting the sizing and setbacks right the first time avoids costly site rework.

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