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Rheem
Rheem 50 Gal. Classic Tall 36,000 BTU Direct Vent Residential Natural Gas Water Heater

Rheem 50 Gal. Classic Tall 36,000 BTU Direct Vent Residential Natural Gas Water Heater

5(1 rating)

Best price now

$1,272.00at The Home DepotChecked 2 h ago

Compared across 2 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $1,272.00 at The Home Depot (checked Nov 14, 2026).
  • Checked at 2 stores.

Our take on the Rheem 50 Gal. Classic Tall 36,000 BTU Direct Vent Residential Natural Gas Water Heater

The Rheem Classic Tall 50-gallon direct vent natural gas water heater uses a 36,000 BTU/hr Low NOx burner and pulls combustion air from outside through a coaxial vent that swivels 360 degrees. It needs no electrical power, thanks to a piezo ignition, and its 0.93 Uniform Energy Factor and 63-gallon first-hour rating suit households of three to five people. Compared with power-vent and condensing models, it is simpler and quieter to install where an exterior wall is available, but it is not a high-efficiency condensing unit and is prohibited in some air-quality districts that require ultra-low NOx. Owners value the steady hot-water recovery and the no-electricity operation; the main trade-offs are the venting constraints and the 6-year limited warranty, which is shorter than the 10- to 12-year tank warranties on some premium rivals.

Best forHouseholds of 3 to 5 peopleHomes with an exterior wall for direct ventingAreas without reliable power near the heaterReplacements for an existing direct vent unit
Pros
  • Direct vent pulls outside air, so it does not use indoor air for combustion
  • No electrical power required; piezo ignition for startup
  • Adjustable coaxial vent swivels 360 degrees for flexible routing
  • 63-gallon first-hour rating and 0.93 UEF
  • Factory-installed T&P relief valve and 3/4-inch top connections
Cons
  • Not compliant in air-quality districts that require ultra-low NOx
  • 6-year limited warranty is shorter than some rivals' 10-12 years
  • Direct vent installation limits placement to an exterior wall
  • No condensing technology, so efficiency trails condensing models

Rheem 50 Gal. Classic Tall 36,000 BTU Direct Vent Residential Natural Gas Water Heater prices at every store

  • The Home DepotNew

    In stock

    $1,272.00Checked 2 h ago
    Visit The Home Depot
  • Saber SalesNew

    In stockReturn policy

    $1,490.00Checked 2 h ago
    Visit Saber Sales

Rheem 50 Gal. Classic Tall 36,000 BTU Direct Vent Residential Natural Gas Water Heater price history

Lowest price we've seen: $1,272.00 on Nov 14 at The Home Depot. Tracked across 1 store since Nov 14.

What reviewers say

Owners of the Rheem direct vent gas water heater generally report reliable hot water for larger households and appreciate that it needs no electricity. Complaints tend to focus on installation constraints and the shorter warranty rather than performance.

What people mention
  • Hot water supplyPraisedOwners say it keeps up with several showers and appliances in a 3-5 person home.
  • InstallationMixedThe swiveling vent helps, but the need for an exterior wall limits placement.
  • Power independencePraisedReviewers like that it runs without electricity during outages.
  • WarrantyCriticisedSome owners find the 6-year limited warranty short compared with rivals.
  • Emissions complianceCriticisedBuyers in some districts cannot install it because it is not ultra-low NOx.

About the Rheem 50 Gal. Classic Tall 36,000 BTU Direct Vent Residential Natural Gas Water Heater

This 50-gallon natural gas water heater has a 36,000 BTU/hour Low NOx burner. It is sized for households of 3 to 5 people. It is a direct vent model, so it pulls outside air for combustion.

The adjustable coaxial vent swivels 360 degrees for flexible installation and needs no electrical power. A piezo ignition system lights the burner without matches. A premium grade anode rod helps protect the tank. The temperature and pressure relief valve is factory installed, and the 3/4 in. water connections are on top.

This model does not meet ultra-low NOx (ULN) emissions requirements. Regulations prohibit its sale, shipment or installation in any air quality district that requires ULN water heaters, including some areas of California and Utah.

Fuel
Natural gas
Tank capacity
50 gal.
Burner
36,000 BTU/hour Low NOx
Venting
Direct vent, adjustable coaxial vent, swivels 360 degrees, no electrical power required
Ignition
Piezo, no match lighting
First hour rating
81 gal.
Uniform Energy Factor
0.61
Household size
3 to 5 people
Water connections
3/4 in., top
Max pressure
150 PSI
Max altitude
Rated for installations up to 5,999 ft.
Included
Factory installed temperature and pressure relief valve, premium grade anode rod

Specifications

Tank Capacity
50 gal.Source
Wattage
4500 WSource
Voltage
208-VoltSource
Heating Elements
Dual 4500-WattSource

Questions and answers

Is this water heater worth it compared with a power-vent model?
It suits homes where an exterior wall allows direct venting and where you want no electrical hookup. A power-vent model can vent through a sidewall or roof with more routing freedom but needs power.
How many people can it serve?
Rheem rates it for households of 3 to 5 people, with a 63-gallon first-hour rating and a 50-gallon tank.
Does it need electricity?
No. It uses a piezo ignition and a standing pilot, so it operates without a power connection.
Can I install it in California or Utah?
Not in air-quality districts that require ultra-low NOx water heaters. Check your district's rules before buying; this model does not meet those requirements.
What is included with the heater?
It comes with a factory-installed temperature and pressure relief valve and 3/4-inch top water connections. Venting and other installation parts are separate.
What warranty does it have?
It carries a 6-year limited warranty.
Where is the Rheem 50 Gal. Classic Tall 36,000 BTU Direct Vent Residential Natural Gas Water Heater cheapest?
At The Home Depot, for $1,272.00, as of our latest check.
What do buyers say about the Rheem 50 Gal. Classic Tall 36,000 BTU Direct Vent Residential Natural Gas Water Heater?
Rated 5 out of 5 from 1 ratings.
Where can I buy the Rheem 50 Gal. Classic Tall 36,000 BTU Direct Vent Residential Natural Gas Water Heater?
2 stores we checked sell it, including The Home Depot, Saber Sales.

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Maintenance
No filter to clean or replace
Use
Residential
Warranty
6-year limited on tank and parts; 1-year in-home labor
Uniform Energy Factor
0.93Source
First Hour Rating
63 Gal.Source
Maximum Pressure
150 PSISource
Phase
SingleSource
Water Connection Location
TopSource
Water Connections
3/4 in.Source
Warranty
6-year limitedSource
Commercial/Residential
ResidentialSource
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