Gas vs. Electric Heating: Cost, Efficiency & Environmental Impact
The gas vs. electric heating debate has intensified as California pushes toward electrification. Understanding the true costs, efficiency differences, and environmental impact helps you make an informed decision for your home.
Quick Comparison
| Feature | Gas Heating | Electric Heating |
|---|---|---|
| Operating Cost (heating season) | $60 - $120/month | Heat pump: $50-100 | Resistance: $150-300 |
| Carbon Emissions | Higher (fossil fuel) | Lower (esp. with clean grid) |
| Safety Risk | CO poisoning possible | No combustion risks |
| Power Outage Operation | Yes (some models) | No |
| Tax Credits Available | Limited | Yes (heat pumps) |
| Future Regulations | Facing restrictions | Encouraged/mandated |
| Efficiency | 80-98% | Heat pump: 250-400% |
Detailed Breakdown
Gas Heating
Efficiency: 80-98% AFUE
Advantages
- +Lower operating costs in many areas
- +Powerful heat output - warms quickly
- +Works during power outages (pilot ignition)
- +Well-established technology
- +Lower upfront cost for furnaces
Disadvantages
- −Burns fossil fuel - carbon emissions
- −Requires gas line connection
- −Carbon monoxide risk requires detectors
- −May face future regulations/bans
- −Gas prices can be volatile
- −Less efficient than heat pumps
Best For
- →Areas with very low gas prices
- →Backup heating during outages
- →Budget-focused homeowners (upfront)
- →Existing gas infrastructure
Upfront Cost
$4,000 - $8,000 (furnace)
Operating Cost
$0.90 - $1.20 per therm
Lifespan
15-25 years
Electric Heating
Efficiency: Heat pump: 250-400% | Resistance: 100%
Advantages
- +No combustion - no carbon monoxide risk
- +No fossil fuels burned on-site
- +Heat pumps are 2-3x more efficient
- +Qualifies for tax credits and rebates
- +Future-proof as grid gets greener
- +No gas line or connection needed
- +Heat pumps also provide cooling
Disadvantages
- −Higher electric rates in some areas
- −Resistance heat is expensive to operate
- −Doesn't work during power outages
- −Heat pumps cost more upfront
- −Older homes may need electrical upgrades
Best For
- →New construction (no gas line)
- →Environmentally conscious homeowners
- →Homes using heat pumps (not resistance)
- →Those eligible for incentives
- →All-electric home goals
Upfront Cost
$3,000 - $15,000 (varies by type)
Operating Cost
Heat pump: $50-100/mo | Resistance: $150-300/mo
Lifespan
Heat pump: 15-20 years | Baseboard: 20+ years
Our Recommendation
For Bay Area homes, electric heating via heat pumps is increasingly the best choice. Heat pumps are dramatically more efficient than gas furnaces, and when you factor in federal tax credits (30%) and local rebates, the upfront cost difference shrinks significantly. California's clean energy grid means electric heating has a smaller carbon footprint than gas, and new building codes are pushing toward all-electric construction. However, avoid electric resistance heating (baseboard, wall heaters) - it's 100% efficient but very expensive to operate.
Quick Guide by Situation
New home or major renovation
Electric (heat pump) - meets future codes, lower carbon
Replacing gas furnace
Heat pump - eligible for significant rebates
Existing baseboard electric
Upgrade to heat pump - major efficiency gain
Rental property, tight budget
Gas may have lower upfront cost
All-electric home goal
Heat pump - the clear choice
Frequently Asked Questions
Find answers to common questions about our services
If comparing a gas furnace to electric resistance heat, gas is usually cheaper. But if comparing gas furnace to a heat pump, the heat pump typically costs less to operate because it's 2-3x more efficient. Most Bay Area homeowners switching from gas to heat pump see lower total energy bills.
California isn't banning existing gas appliances, but new construction codes increasingly favor or require all-electric buildings. Many Bay Area cities have banned gas in new construction. Existing gas systems can continue operating, but incentives strongly favor switching to electric heat pumps.
Electric baseboard and wall heaters are 100% efficient but expensive to operate because electricity costs more per BTU than gas. They're fine for occasional use in small spaces but not recommended for whole-home heating. Heat pumps are a much better electric option.
Your electric bill will increase, but your gas bill drops to zero (or near-zero for water heating). Heat pumps are so efficient that total energy costs typically decrease 20-40%. The exception: if you have solar panels, switching to electric heating can maximize your solar investment.
Need Help Deciding?
Our HVAC experts can assess your specific situation and recommend the best option.
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