Choosing a propane tank requires more than selecting a gallon capacity. Your appliance demand, expected propane consumption, installation location, available space, tank configuration and applicable requirements can all affect which tank is appropriate.
Choosing the Right Tank Size
Compare common propane tank capacities and their general applications.
Propane tanks are available in different capacities. The appropriate size depends on the appliances being supplied, expected propane consumption, installation space and applicable requirements.
120–250 Gallons
May be suitable for smaller residential systems, selected appliances and backup applications, depending on propane demand.
325–500 Gallons
Common capacities for residential systems using propane for heating, cooking, hot water, generators and multiple appliances.
1,000 Gallons
Provides greater storage capacity for larger properties and applications with higher propane requirements.
2,000+ Gallons
Larger capacities may be used for certain commercial, agricultural and industrial storage applications.
What Should You Consider?
- Number and type of propane appliances
- Expected propane consumption
- Heating and hot-water requirements
- Generator or backup-power requirements
- Available installation space
- Above-ground or underground configuration
- Local clearance and permitting requirements
- Propane delivery access
ASME vs. DOT Tanks
Understand the basic difference between stationary tanks and portable cylinders.
ASME Propane Tanks
ASME propane tanks are generally stationary pressure vessels designed for permanent installation. Larger residential and commercial tanks commonly use this type.
- Generally stationary
- Used for larger propane storage applications
- May be configured above ground or underground
DOT Propane Cylinders
DOT cylinders are designed for portable applications and are commonly used for smaller propane containers and equipment.
- Designed for portable applications
- Used in various smaller propane systems
- Subject to applicable DOT requirements
Above-Ground vs. Underground
Consider the installation environment before choosing a tank configuration.
Above-Ground Tanks
Above-ground tanks remain visible and accessible for inspection and servicing.
- Accessible for visual inspection
- Generally easier to service
- No tank excavation required
- Requires appropriate clearances
Underground Tanks
Underground tanks are installed below grade with required service components remaining accessible.
- Reduced visual presence
- Requires excavation
- Requires appropriate corrosion protection
- Soil and groundwater conditions should be considered
New vs. Used Propane Tanks
Review the important details when evaluating new or previously used tanks.
New Propane Tanks
- Manufacturer and model
- Tank capacity
- Configuration
- Pressure rating
- Valves and fittings
- Manufacturer documentation
Used Propane Tanks
- Tank condition
- Data plate information
- Inspection documentation
- Valves and fittings
- Corrosion or physical damage
- Suitability for intended service
Propane Tank Sizing Guide
General reference for comparing common tank capacities.
| Tank Capacity | Common Application Examples |
|---|---|
| 120–250 gallons | Smaller residential systems, selected appliances and backup applications. |
| 325 gallons | Residential and moderate propane storage applications. |
| 500 gallons | Whole-home heating, hot water, generators and other residential applications. |
| 1,000 gallons | Larger residential, agricultural and commercial applications. |
| 2,000+ gallons | Larger commercial, agricultural and industrial storage applications. |
Delivery & Installation
Prepare your property before the tank arrives.
Before Ordering
- Confirm the required tank capacity
- Determine the installation configuration
- Check available installation space
- Confirm delivery vehicle access
- Review clearance requirements
- Check local permitting requirements
- Confirm foundation or support requirements
- Review required valves and fittings
Professional Installation
Propane tanks should be installed by appropriately qualified professionals. Installation requirements may include site preparation, tank positioning, piping, regulators, valves, corrosion protection, inspection and leak testing.
Safety & Maintenance
Follow manufacturer instructions and applicable propane requirements.
Important Safety Practices
- Do not modify valves or pressure-relief equipment.
- Do not remove the manufacturer's data plate.
- Keep the tank area accessible.
- Keep combustible materials away from the tank.
- Have connections inspected by qualified personnel.
- Follow manufacturer maintenance requirements.
Codes & Requirements
Propane tank requirements can vary according to jurisdiction, tank capacity, installation configuration and site conditions.
Verify applicable requirements with qualified professionals and relevant local authorities before installation.
Need Help Choosing a Propane Tank?
Start by identifying your required capacity, installation configuration and intended application. Review the product specifications carefully and consult a qualified propane professional when necessary.
The information provided in this Buyers Guide is intended for general informational purposes and does not replace professional engineering, propane supplier guidance, manufacturer's instructions, inspection requirements or applicable federal, state and local regulations.
Tank capacities and product specifications should be verified against the individual product listing and manufacturer's documentation. Installation, inspection, filling and connection of propane equipment should be performed by appropriately qualified professionals.