LPG vs. Electricity for Home Heating: A Side-by-Side Comparison
For households not connected to the natural gas mains — particularly in rural areas — the choice between LPG and electricity for home heating is a significant financial and practical decision. Both have real advantages, and the right choice depends on your property, usage patterns, and priorities.
How Each System Works
LPG Heating
LPG (Liquefied Petroleum Gas) is stored in a tank on your property and burned in a boiler to heat water, which then circulates through radiators and hot water taps. It's essentially the same system as natural gas central heating, with a tank replacing the pipeline connection.
Electric Heating
Electric heating converts electrical energy directly into heat, either through storage heaters (which charge overnight on cheaper tariffs), panel heaters, infrared panels, or — increasingly — heat pumps that extract heat from the air or ground.
Cost Comparison
Running costs vary significantly by region and change with energy markets, but some general principles hold true:
| Factor | LPG | Electricity |
|---|---|---|
| Unit cost (per kWh) | Generally lower | Generally higher |
| Installation cost | Medium (tank + boiler) | Low–High (depends on system) |
| Efficiency | 85–95% (condensing boiler) | 100% (direct) / 200–400% (heat pump) |
| Price volatility | High | Medium |
It's important to note that while electricity costs more per unit, heat pumps dramatically change the equation — by extracting heat from the environment rather than generating it, a heat pump can deliver 3–4 units of heat for every 1 unit of electricity consumed.
Environmental Impact
This is an area where the comparison is evolving rapidly. LPG produces CO₂ when burned — it's a fossil fuel. Electric heating's carbon footprint depends heavily on how the electricity is generated. In countries with a high proportion of renewable energy in the grid mix, electric heating (especially via heat pumps) can be significantly lower-carbon than LPG. In grids that still rely heavily on coal or gas, the advantage may be smaller.
- LPG: Consistent, direct CO₂ emissions at point of use
- Electricity: Emissions depend on grid mix; improving as renewables grow
- Heat pumps: Currently the lowest-carbon option in most developed nations
Reliability and Supply
LPG requires monitoring tank levels and arranging deliveries — running out of gas in winter is a real and uncomfortable possibility. Most suppliers offer auto-fill services to mitigate this, but there can still be delivery delays during high-demand periods.
Electricity supply is generally very reliable in developed countries, though power cuts do occur. An electric system also provides no backup if the grid goes down, whereas an LPG tank holds a significant fuel reserve.
Installation and Maintenance
Installing an LPG system requires fitting a storage tank (subject to planning and safety regulations), a boiler, and a full wet heating system if not already present. Electric systems range from simple plug-in panel heaters to complex heat pump installations requiring outdoor units and potentially underfloor heating.
- LPG boilers require annual servicing and occasional component replacement
- Electric panel heaters have virtually no maintenance requirements
- Heat pumps have relatively low maintenance needs but require specialist servicing
Which Is Better for You?
Consider the following scenarios:
- You have an existing wet central heating system: LPG is a straightforward, cost-effective solution without replacing all your radiators and pipework.
- You're building a new property or doing a major renovation: A heat pump with underfloor heating is worth serious consideration for long-term savings and sustainability.
- You're looking for lowest upfront cost: Electric panel heaters are cheap to install, though running costs may be higher.
- You want the lowest carbon footprint: An air source heat pump powered by a renewable electricity tariff is currently the best option.
There's no single winner — LPG and electricity each serve different households best. Evaluate your current infrastructure, budget, and long-term plans before committing to either system.