The Smart Way To Buy A Propane Tank
Everything you need to know before you buy — tank sizes, safety checks, new vs. exchange, and how to get it delivered fast. Written by the propane specialists at Buy Propane Tank.
Buy Your Propane Tank In 4 Simple Steps
No guesswork. Follow this short guide and you'll have the right tank, the right size, and the right safety paperwork — every time.
Pick Your Use Case
Grilling, RV, home heating, forklift, or backup generator — each use calls for a different tank size and valve type.
Choose The Right Size
From 20 lb cylinders to 1,000 gallon residential tanks. Use our size chart below to match capacity to demand.
Verify Certification
Confirm DOT or ASME stamping, manufacture date, and OPD valve — we check every tank before it ships.
Order & Schedule Delivery
Order online at mypropanetank.com or call us directly. We confirm same-week delivery or local pickup.
What Size Propane Tank Do You Actually Need?
This is the #1 question buyers ask. Use the chart below to match your appliance or property to the correct tank size before you order.
| Tank Size | Common Use | Approx. Weight (Full) | Best For |
|---|---|---|---|
| 20 lb Cylinder | Grills, patio heaters | ~37 lbs | Backyard grilling, weekend use |
| 33 lb Cylinder | Forklifts, larger grills | ~62 lbs | Light commercial / industrial use |
| 40 lb Cylinder | RV, camping, mobile homes | ~73 lbs | Recreational vehicles & cabins |
| 100 lb Cylinder | Small appliances, generators | ~170 lbs | Backup power, multiple appliances |
| 120 Gallon Tank | Pool heaters, fireplaces | ~1,000 lbs | Small homes, single appliance |
| 250 Gallon Tank | Home heating, water heater | ~1,400 lbs | Small to mid-size households |
| 500 Gallon Tank | Whole-home heating + cooking | ~2,650 lbs | Mid to large homes off the grid |
| 1,000 Gallon Tank | Large estates, farms, commercial | ~5,250 lbs | Large properties & commercial sites |
What To Check Before You Buy
Whether you're buying new, refurbished, or exchange — confirm these points so you never get stuck with an unsafe or non-compliant tank.
- DOT or ASME StampEvery legal propane tank must carry a visible DOT (cylinders) or ASME (large tanks) certification stamp.
- Manufacture / Recertification DateCylinders must be recertified every 12 years (5 years for older types). Check the stamped date collar.
- OPD Valve (Overfill Protection Device)Required on all cylinders 4–40 lbs sold after 1998 — look for the triangular handwheel.
- No Rust, Dents, or BulgingSurface rust is cosmetic; deep pitting, dents near seams, or bulging means the tank should be rejected.
- Tare Weight (TW) Stamped ClearlyYou need this number to calculate how full your tank is on a scale.
Buyer Safety Notice
Propane is a regulated, flammable gas. Always follow these rules when buying, transporting, and storing your tank:
- Transport tanks upright, in a ventilated vehicle area — never in a sealed trunk.
- Never fill a tank past 80% capacity (this is normal and required, not a shortage).
- Store tanks outdoors, away from direct heat, in a ventilated, upright position.
- If you smell gas, leave the area immediately and call your propane provider or 911.
New Tank vs. Exchange vs. Refill
Not sure which option fits your budget and timeline? Here's how the three most common buying paths compare.
Tank Exchange
- Swap your empty tank for a filled one instantly
- No tank ownership cost
- Best for occasional grill users
Buy New Tank
- You own it outright — no swapping fees ever again
- Full DOT/ASME certification & warranty
- Best long-term value for regular users
Refill Your Tank
- Pay only for the gas, not a new cylinder
- Keep the tank you already trust
- Best if your current tank is in good condition
Buyer Questions, Answered
A new steel propane cylinder is good for 12 years before its first recertification, and most last 30+ years with proper care and periodic inspection.
Yes. Buy Propane Tank offers local delivery and pickup options. Call (323) 696-7549 or order at mypropanetank.com to check availability in your area.
Every tank ships with its certification stamp visible, a dated receipt, and safety handling instructions. Larger residential tanks include installation guidance.
In many cases, yes. Ask our team about trade-in and exchange options when you call or check out online.
Yes, as long as it passes the inspection checklist above: valid certification stamp, current recertification date, working OPD valve, and no structural damage.
Ready To Order Your Propane Tank?
Our team is standing by to help you choose the right size, confirm certification, and schedule delivery — fast.
Browse Tanks At mypropanetank.com 📞 (323) 696-7549