heating oil
liquid oilDESNZ has no single 'heating oil' label. This entry uses DESNZ 'Fuel Oil' (heavier industrial/boiler grade). UK DOMESTIC heating oil is usually 'Gas Oil' (see diesel notes) or kerosene-type 'Burning Oil' (see kerosene). IPCC 2006 Residual Fuel Oil NCV 40.4 MJ/kg, CO2 77,400 kg/TJ; Gas/Diesel Oil is the alternative mapping. EIA US: No.2 heating oil ~138,500 Btu/gal.
- 'Heating oil' is not one product: this entry models the heavier 'Fuel Oil' grade. UK domestic heating oil is typically kerosene-type burning oil or gas oil (diesel-grade) — pick the matching fuel for a domestic system.
Density
983.284 kg/m³
at 15 °C (fuel-properties basis)
Heating values
LHV/NCV
HHV/GCV
Emission factors
| Metric | Value | Scope | Region / year | Source |
|---|---|---|---|---|
| CO2 | 3.16262 kg co2 per l | direct combustion | UK · 2025 | |
| CO2e | 3.17492 kg co2e per l | direct combustion | UK · 2025 |
CO₂ ≠ CO₂e — separate metrics, never converted into one another. Why? →
Worked example
Open in converter →Converting
1 L · heating oil
Energy
Same energy expressed in other units.
40.07 MJ
source-based
11.13 kWh
source-based
0.04007 GJ
source-based
37,980 BTU
source-based
42.63 MJ
source-based
11.84 kWh
source-based
0.04263 GJ
source-based
40,400 BTU
source-based
Mass
0.9833 kg
source-based
Volume
1,000 mL
exact
1 L
exact
0.001 m³
exact
0.264172 US gal
exact
0.219969 imp gal
exact
0.00628981 bbl
exact
Emissions
CO₂ and CO₂e are separate — never derived from each other.
~3.16 kg CO2
region + year
~3.17 kg CO2e
region + year
Energy density
Energy per unit of mass or volume.
40.75 MJ/kg
source-based
11.13 kWh/L
source-based
Assumptions
- density: assumed heating oil density 983.284 kg/m³ at 15 °C (fuel-properties basis)
- heating value basis: energy on LHV/NCV basis, 11.131 kWh/L
- heating value basis: energy on HHV/GCV basis, 11.841 kWh/L
Sources
Follow each source back to its primary document — that traceability is the point. How conversions work →