burning oil
liquid oilDESNZ 2025 'Burning Oil' — the kerosene grade burned in UK domestic heating boilers, sold as '28 second oil'. Distinct from aviation kerosene (the 'kerosene' entry, DESNZ 'Aviation Turbine Fuel') and from the heavier heating oil / gas oil grades. Beware 'home heating oil': in the UK it usually means this fuel, in the US it means No. 2 fuel oil — so the term is deliberately not an alias here.
Easily confused with
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Density
802.568 kg/m³
at 15 °C (fuel-properties basis)
Heating values
Emission factors
| Metric | Value | Scope | Region / year | Source |
|---|---|---|---|---|
| CO₂ | 2.52782 kgCO2/L | direct combustion | UK · 2025 | |
| CO₂e | 2.54016 kgCO2e/L | direct combustion | UK · 2025 |
CO₂ ≠ CO₂e — separate metrics, never converted into one another. What these metrics mean →
Worked example
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Energy
Same energy expressed in other units.
Mass
Volume
Emissions
CO₂ and CO₂e are separate — never derived from each other.
Energy density
Energy per unit of mass or volume.
Assumptions
- density: assumed burning oil density 802.568 kg/m³ at 15 °C (fuel-properties basis)
- heating value basis: energy on LHV/NCV basis, 9.779 kWh/L
- heating value basis: energy on HHV/GCV basis, 10.294 kWh/L
Sources
Follow each source back to its primary document — that traceability is the point. How conversions work →