Tank Chart

Choosing a heat source for your home can sometimes be overwhelming. There are a number of options to choose from, including natural gas, oil, wood, electric, and, of course, propane. But given the rising cost of oil and the limited availability of natural gas, many people are making the switch to propane, one of the most cost economically efficient options to choose from.

A Guide to Propane Tank Sizes from a Leading Residential Propane Supplier

Find the right residential propane tank size with GasTec.

When it comes to heating and powering your home, finding the right propane tank capacity makes all the difference. But with so many options out there, where do you even start? GasTec has made propane simple, from installation to maintenance, and everything in between. We’ll match you with the perfect tank size for your home, your usage, and your peace of mind. 

Have you been scouring the internet for “What size propane tank do I need?” You’re not the only one. Sizes range from small grill cylinders to large 500-gallon propane tank dimensions for homes. Our experienced team will walk you through all the options based on how much your expected usage is, where you’ll want the tank placed, and what size will work best for your location and needs.

What Propane Tank Sizes Are Right for You?

Your propane tank size will depend on several factors. To properly size your tank, you’ll need the answers to these questions:

  • What will you use propane for? (Heat, appliances, backup power, etc.)
  • Where will the tank be placed?
  • How large is your home or business?


Once you’ve got a general idea, our team can handle the rest. We serve homes and businesses across
Pennsylvania, New Jersey, and Delaware with reliable propane delivery, expert installation, and responsive support.

If you’re still unsure of your next project, we’ve got you covered. Let’s check out the rest of this guide for a propane tank size comparison.

Underground vs. Above Ground 

Deciding between underground vs. above-ground propane tanks? It’s mostly about looks, space, and budget.

Above-ground tanks are quicker to install and easier to service, but they’re visible and exposed to the elements.

Underground tanks, meanwhile, cost more to install but stay out of sight and are protected from the weather.

GasTec Propane Tanks

Not sure what size you need? Use this propane tank size chart as a starting point:

20-POUND PROPANE TANKS

Common uses: Grills, patio heaters, mosquito traps

Size/capacity: ~1.5 feet tall by 1 foot wide, holds just under 5 gallons (liquid)

Notes: Not filled on-site. Exchange services and walk-in services are available for local customers.

33-POUND PROPANE TANKS

Common uses: Forklifts and autogas vehicles

Size/capacity: ~2 feet tall by 1 foot wide, holds ~8 gallons (liquid)

Notes: Typically liquid-draw tanks for horizontal use. We provide exchange and refill services, as well as safety cage options for commercial clients.

100-POUND PROPANE TANKS

Common uses: Fireplaces, ranges, dryers, temporary heat on job sites

Size/capacity: ~4 feet tall by 1.5 feet wide, holds a bit less than 25 gallons (liquid)

Placement: 3 feet from doors/windows; 5 feet from ignition sources

Notes: Lightweight and easy to relocate. Popular with dual-tank setups featuring automatic changeover regulators. When the indicator changes from green to red, it’s time to reorder more propane.

420-POUND PROPANE TANKS

Common uses: Heating, hot water, generators, pool heating

Commercial Uses: Heating, commercial cooking, dry cleaning, and temporary heating

Size/capacity: ~4 feet tall by 3 feet wide, holds 100 gallons (liquid)

Placement: 5 feet from doors/windows; 10 feet from ignition sources. Up to four tanks are allowed side by side.

Notes: Also known as 100-gallon or 120-gallon tanks. Great for households using multiple propane systems.

500 GALLON PROPANE TANKS

Common uses: Whole-home heating, pool heaters, generators

Commercial Uses: Heating, commercial cooking, dry cleaning, crop drying, and temporary heating

Size/capacity: ~3.5 feet wide by 10 feet long, holds 400 gallons (liquid)

Placement: 10 feet from structures, ignition sources, and property lines

Notes: Comes in above-ground or underground versions. This is the smallest tank size for communities or shared commercial buildings. Ideal for homes between 2,500–4,500 sq. ft.

1,000 GALLON PROPANE TANKS

Common uses: Large home systems, multiple appliances, commercial buildings

Commercial Uses: Heating, commercial cooking, dry cleaning, crop drying, and temporary heating

Size/capacity: ~3.5 feet wide by 16 feet long, holds 800 gallons (liquid)

Placement: 10 feet from buildings, ignition sources, and property lines. Requires 25-foot clearance if tanks are grouped.

Notes: Best for homes over 4,500 sq. ft. or shared commercial metered systems.

30,000 GALLON PROPANE TANKS

Common uses: Primarily commercial. Bulk storage for large communities or high-demand commercial sites

Size/capacity: ~10 feet tall/wide by 70 feet long, holds 24,000 gallons

Placement: Site-specific regulations apply

Notes: Typically installed at propane plants or for heavy-use industrial operations. Not usually recommended for residential use.

Looking at this propane tank gallon chart, you might be wondering: How much propane does my tank hold? The liquid propane is measured in gallons, while the propane gas is measured in pounds. Keep in mind that all tanks are filled to only 80% of their capacity to allow room for expansion. For more information, please reach out to our team. 

Find Your Tank with GasTec

Whether you’re outfitting a new home or upgrading your current system, GasTec is here to make it simple. We offer expert propane services backed by decades of experience—and we’ll make sure you get the right tank for your needs.

Whether you’re trying to determine the average propane tank size for your house heating or picking a tank for standby generators, GasTec makes it easy.

Let’s find the perfect propane tank size for your home! Contact GasTec today.

Ready to Get Started?

Whether you’re a new homeowner, a contractor on a deadline, or a business looking to streamline fuel use, our team is here to make it easy.

If you’re ready to refill propane tanks or set up new service, we’ll get it done.

GasTec – for energy that works as hard as you do.


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