What is a 120 gallon Fatboy propane tank, and is it the right size for your home or small business in Puerto Rico? The Fatboy is a horizontal residential and light commercial propane tank that holds approximately 120 gallons of propane in a compact horizontal form factor, sitting closer to the ground than vertical tanks. It is one of the most popular tank sizes for Puerto Rico homes that use propane for cooking, water heating, dryers, and pool heating, plus light commercial applications. This guide explains everything you need to know about the 120 gallon Fatboy in Puerto Rico.
For 120 gallon Fatboy propane tank service in Puerto Rico, call Tropigas at 787-641-8002.
What Is a 120 Gallon Fatboy Propane Tank
A 120 gallon Fatboy is a horizontal steel propane tank designed for residential and light commercial use. The "Fatboy" nickname refers to its short wide shape, sitting closer to the ground than taller vertical tanks. It holds approximately 120 gallons of propane at the standard 90% fill level (reduced to 80% to 85% in summer months per Puerto Rico practice). The tank has a dome cover protecting the service valves, a regulator that matches tank pressure to home appliances, and mounts on a concrete pad or saddles.
In Puerto Rico, the Fatboy is the natural step up from the 100 lb vertical cylinder for households with multiple propane appliances or higher usage.
What Can You Use a 120 Gallon Fatboy For
The 120 gallon Fatboy powers a wide range of residential and light commercial applications: full home kitchen with range, oven, and stove, multiple water heaters or large tankless water heaters, clothes dryers, pool and spa heating for medium pools, propane fireplaces, BBQ grills connected to the home line, propane backup generators for emergency power, and small business kitchens or laundromats.
For Puerto Rico homes using propane as their primary fuel, the Fatboy delivers the right capacity without the footprint of a 250 or 500 gallon tank.
How Long Does a 120 Gallon Fatboy Last
How long a 120 gallon Fatboy lasts depends on your appliances and usage. For a typical Puerto Rico family of four using propane for cooking and water heating, a full Fatboy lasts approximately 4 to 6 months. For homes also using propane for a dryer and pool heating, expect 2 to 4 months. For light commercial use, lasting time depends entirely on the business volume.
Track your usage and schedule refills before running below 25% to avoid running out. Call 787-641-8002 to set up scheduled delivery.
120 Gallon Fatboy Installation in Puerto Rico
Installing a 120 gallon Fatboy at your property requires proper site selection and code-compliant connection following NFPA 58 and Puerto Rico Fuel Gas Code 2018. Requirements include a level concrete pad sized for the tank, minimum clearance distances from windows, doors, ignition sources, and property lines per NFPA 58, a regulator sized for total appliance demand, gas piping from the tank to home appliances installed by certified technicians, and inspection and certification before first fill.
Tropigas coordinates Fatboy installation with certified professionals. Call 787-641-8002 for a site assessment.
Fatboy vs Other Tank Sizes
The 120 gallon Fatboy fits between the smaller residential cylinders and the larger commercial tanks. Compared to a 100 lb vertical tank, the Fatboy holds approximately 5 times more propane in a horizontal format that some homeowners prefer visually. Compared to a 250 gallon tank, the Fatboy is smaller, has a smaller footprint, and is adequate for most residential use without the investment of a larger tank.
The right size depends on your appliances, usage patterns, property size, and budget. Call 787-641-8002 for a personalized sizing recommendation.
Fatboy Delivery and Refill in Puerto Rico
Once installed, your 120 gallon Fatboy is refilled by Tropigas bobtail truck delivery to your property. You do not need to be present for most refills, but the tank must be accessible. Refills are scheduled based on your usage patterns and tank level. Most homeowners with a Fatboy set up scheduled delivery to avoid running out, especially during hurricane season.
Call 787-641-8002 to set up Fatboy refill service.
Fatboy Safety and Code Compliance
A 120 gallon Fatboy installation must meet NFPA 58 codes for placement, clearances, and connections, plus the Puerto Rico Fuel Gas Code 2018 and Puerto Rico Fire Code 2018. The tank itself must meet ASME pressure vessel standards and be inspected periodically for corrosion, valve integrity, and piping condition. Tropigas inspects every tank at each refill.
Safe operation requires clear access for delivery, nothing stored against the tank or under the dome, and immediate response to any odor of gas. Call 787-641-8002 for safety questions.
Frequently Asked Questions
Ing. Rodolfo Leo Quiñones
Operations, Sales and Export Manager , Tropigas / Tropigas SXM
Expert in propane energy systems, NFPA compliance, and industrial gas logistics in Puerto Rico and the Caribbean.
