Propane and natural gas both heat homes and power appliances, but they differ dramatically in cost, availability, and delivery logistics. If you're choosing between them—or comparing fuel suppliers—understanding the real numbers and practical constraints matters more than general enthusiasm about either fuel. Let's break down what actually affects your wallet and your fuel supply.
Price Differences: What You'll Actually Pay
Propane typically costs more per BTU than natural gas, roughly 2–3 times higher depending on your region and market conditions. As of early 2024, propane averaged $2.50–$3.50 per gallon in most U.S. markets, while natural gas ran $8–$12 per thousand cubic feet (MCF). That gap widens in winter when heating demand peaks and propane prices spike.
However, natural gas requires pipeline infrastructure to your property—something only available in urban and suburban areas served by utility companies. If you live in a rural location, propane is often your only option, making price comparisons moot. Check your zip code with local utilities first; if they don't service your address, propane delivery becomes mandatory.
Delivery & Storage Logistics
Natural gas arrives continuously through underground pipes, eliminating the need for storage tanks. You pay a monthly utility bill; the company handles all logistics. Setup costs are lower, and you never worry about running out mid-winter.
Propane requires onsite storage in a large tank (typically 500–1,200 gallons for residential use). You must monitor fuel levels and schedule deliveries before the tank empties. Most propane suppliers charge $15–$30 per delivery, plus the per-gallon rate. Minimum order quantities often range from 100–150 gallons, meaning each fill-up costs $250–$500+.
This delivery model suits seasonal users better. Summer propane usage drops sharply, so you may only refill every 2–3 months. Winter heating demands refills every 3–4 weeks. Plan accordingly—running empty in January costs time and frustration.
Efficiency & Performance
Both fuels burn efficiently in modern appliances, but propane packs about 25% more energy per unit volume than natural gas. Your propane heater or water heater may use slightly less fuel to deliver the same warmth. That advantage partially offsets propane's higher per-unit cost, though not entirely.
Appliance compatibility matters. Propane and natural gas require different burner orifices and regulators. You can't simply swap between them without professional adjustments—typically $150–$300 per appliance. If you switch fuels, budget for conversion costs.
Key Cost Factors to Compare
- Distance from supplier: Propane delivery fees increase if you live 20+ miles from the dispatch center
- Tank ownership: Some suppliers own your tank; others require you to purchase one ($1,500–$3,000 upfront)
- Contract terms: Fixed-rate plans lock prices for winter; variable rates fluctuate with crude oil markets
- Bulk discounts: Purchasing 500+ gallons at once often triggers 5–10% savings
- Automatic delivery vs. call-in: Automatic scheduling ensures full tanks; manual ordering gives flexibility but risks stockouts
Making Your Decision
Start by confirming fuel availability in your area. Call your local natural gas utility or check their website for service maps. If natural gas reaches your property, calculate the switching cost: new piping, meter installation, and appliance conversions typically run $2,000–$5,000 total.
If propane is your reality, focus on supplier choice. Compare rates from at least three local companies—prices vary by 20–40 cents per gallon even in the same region. Ask about contract terms, delivery frequency, and tank ownership rules. Platforms like Mercoly let you compare trusted propane delivery providers side-by-side, saving the back-and-forth with multiple vendors.
Review your heating system's efficiency rating (AFUE for furnaces, Energy Star labels for new units). Upgrading an old propane furnace (60% AFUE) to a modern condensing model (95% AFUE) cuts fuel consumption roughly in half—a bigger savings lever than switching fuels.
Frequently Asked Questions
Q: Can I store propane safely in my basement or garage? No. Propane tanks must sit outdoors, at least 10 feet from doors and windows, per safety code. Indoor storage risks fire and carbon monoxide hazards.
Q: What happens if my propane tank runs empty mid-winter? You lose heat and hot water until a refill arrives, typically 24–48 hours later. Most suppliers offer emergency same-day delivery for an extra $50–$100 fee.
Q: How often should I schedule propane deliveries? Winter heating usually depletes a 500-gallon tank every 3–4 weeks; set up automatic delivery to avoid emergencies. Summer usage drops to nearly zero if you only heat.
Ready to compare propane suppliers and lock in better rates? Find vetted fuel delivery providers in your area today.