330 Gallon Oil Tank (Horizontal) dimensions
Typically filled to ~300 gal.
| Spec | Value |
|---|---|
| Width | 44 in |
| Height | 27 in |
| Length | 72 in |
| Geometric capacity | 321.5 gal |
| Nominal rating | 330 gal |
| Liquid weight (brim-full) | 2,315 lb of heating oil #2 |
| Empty tank weight | Varies by gauge/manufacturer — see nameplate or spec sheet |
Placement notes
Indoor oil tank clearances are governed by NFPA 31 and local code; requirements differ by jurisdiction and tank listing, so confirm specifics with your installer or AHJ. Practically, leave working access to the gauge, fill and vent, keep the legs on a solid level pad (a square footage calculator helps size the slab and figure concrete), and maintain the code-required separation from the burner.
Source
Highland Tank gauge chart book (44-1/4 x 27 x 72). Capacity figures are computed from this geometry with exact partial-fill math — see methodology.
FAQ
What are the dimensions of a 330 gallon oil tank (horizontal)?
44″ × 27″ × 72″ — full table above. Source: Highland Tank gauge chart book (44-1/4 x 27 x 72).
How much does a full 330 gallon oil tank (horizontal) weigh?
About 2,315 lb of heating oil #2 brim-full, plus the empty tank weight.
How accurate are these figures?
Dimensions come from the sources listed; capacity is computed from exact geometry and matches our chart pages. Typically filled to ~300 gal.