Family owned · Master plumber owned · Palm Beach County · Florida license CFC1426133

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A.O. Smith GCR-50 401 ProLine 50-Gallon Atmospheric-Vent Propane Water Heater

A 50-gallon nominal atmospheric-vent Propane (LP) storage tank. WHE assesses propane supply and regulators, combustion air, venting and hot-water needs before recommending installation.

Family-owned · Master plumber-owned
Florida license CFC1426133

Available through WHE with professional installation only. Every installation is quoted individually. Mention this model in your request; we confirm equipment availability and installation requirements before providing an estimate. Serving Palm Beach Gardens, Jupiter and nearby Palm Beach County communities.

A.O. Smith ProLine tall atmospheric-vent propane (LP) water heater, manufacturer-series image for GCR-30R 401, GCR-40 411 and GCR-50 401

Model specifications

Manufacturer
A.O. Smith
Model
GCR-50 401
Heater type
Storage tank
Energy source
Propane (LP)
Capacity
50-gallon nominal capacity; 48-gallon rated storage
Dimensions and clearances
57 inches high × 22 inches diameter; 3/4-inch top water connections. 4-inch flue outlet; allow additional draft-hood, vent and service clearance.
Efficiency
0.62 UEF; 84-gallon first-hour rating; 37,000 BTU/h propane input, per exact A.O. Smith model specification.

View manufacturer specifications

Is the A.O. Smith GCR-50 401 propane water heater right for your home?

The A.O. Smith ProLine GCR-50 401 is a 50-gallon nominal tall Propane (LP) storage-tank water heater with atmospheric draft-hood venting. Water Heating Experts reviews actual household hot-water demand, the existing propane supply and regulator, combustion air, venting and available space before recommending replacement in Palm Beach Gardens, Jupiter or nearby Palm Beach County communities.

A.O. Smith’s exact-model technical specifications list 48 gallons of rated storage, a 84-gallon first-hour rating, 0.62 Uniform Energy Factor (UEF) and 37,000 BTU/h maximum propane input. The first-hour rating is a standardized measure of delivery over the first hour, not the water physically held in the tank or a guarantee of uninterrupted showers.

Who may find this 50-gallon tall propane model suitable?

This larger tank has the highest rated storage of the three, though the wider cabinet may make access and installation space more challenging. The heater is 57 inches tall × 22 inches in diameter, not counting additional space for the top connections, draft hood, vent connector or future service. We check the access path for removing the old heater, surrounding clearances and whether the model is appropriate for the home’s use.

If another size is more suitable, compare the 30-gallon GCR-30R 401 and 40-gallon GCR-40 411. Tank capacity and the nominal gallon label are only part of hot-water sizing; recovery, peak demand and installation details matter. The exact propane technical table specifies 37,000 BTU/h maximum input. The product’s generic bullet mentions 40,000 BTU/h; do not substitute that natural-gas figure.

Propane supply and atmospheric venting

This is the propane version, not the natural-gas 50-gallon GCR-50 400. The fuel configuration has different burner and control specifications. It must not be assumed interchangeable with a natural-gas unit or converted without a manufacturer-approved process. WHE checks the propane regulator arrangement, gas pressure, gas-line sizing and supplied nameplate before recommending installation.

The GCR-50 401 uses atmospheric draft-hood venting; A.O. Smith lists a 4-inch flue outlet. The vent connector, slope, chimney or shared-vent conditions and combustion/dilution air must be checked for suitability and safe operation. This is not a direct-vent or power-vent model. A replacement may require vent corrections even when its nominal capacity matches the old tank.

Tank protection, maintenance and warranty

Manufacturer-listed features include the Green Choice low-NOx burner, piezo pilot ignition, electronic gas-temperature control with status indicator, Blue Diamond glass lining, CoreGard anode rod, DynaClean sediment-reduction system and a brass drain valve. WHE checks the incoming water conditions, shutoffs, temperature-and-pressure relief discharge, drainage and relevant installation requirements; maintenance remains important.

A.O. Smith lists six-year limited tank and six-year limited parts warranties for this model, subject to the written terms. Manufacturer coverage is not six years of free installation or service labor. WHE confirms actual equipment availability, the installation scope and any applicable labor coverage separately.

GCR-50 401 questions

Is this model for natural gas or propane?

The GCR-50 401 is built for Propane (LP). The GCR-50 400 is the separate natural-gas model. WHE confirms the fuel system and actual supplied unit before installation; these units must not be treated as interchangeable.

How much hot water does the 50-gallon model hold?

A.O. Smith describes it as 50 gallons nominal capacity and lists 48 gallons rated storage. The 84-gallon first-hour rating is a different, standardized hot-water delivery measurement.

Can it replace a direct-vent or power-vent propane heater?

Not without assessing venting and combustion air. The GCR-50 401 uses atmospheric draft-hood venting and has a 4-inch flue outlet. Direct-vent and power-vent heaters use different venting arrangements that may require a different model.

Will it fit in my existing water-heater closet?

The heater body is 57 inches high and 22 inches across. The draft hood, top water connections and servicing need additional room. WHE checks the entire installation, gas supply and vent system before recommending it.

Can WHE install this water heater in Palm Beach Gardens or Jupiter?

WHE serves Palm Beach Gardens, Jupiter and nearby Palm Beach County communities. Mention the exact GCR-50 401 in your free estimate request and send photos of the existing heater and vent. We confirm the project’s suitability, equipment availability and scheduling separately.

Plan a propane water-heater replacement with WHE

Text a photo of the existing tank’s model label and a wider photo showing the propane piping, regulator arrangement, draft hood, venting and available installation space. WHE can compare your options against our gas water-heater installation guide and A.O. Smith replacement options before providing an estimate.

Technical references: A.O. Smith GCR-50 401 exact-model propane product page, ProLine atmospheric-vent family specification sheet AOSRG47000, standard atmospheric-vent installation manual, and residential limited warranty. The exact propane technical table specifies 37,000 BTU/h maximum input. The product’s generic bullet mentions 40,000 BTU/h; do not substitute that natural-gas figure. Confirm the delivered heater’s fuel designation, current label, combustion air and venting before installation. No prices, availability or incentive claims are guaranteed.