Is the RE140eN good for a family of four?

Yes for one to two bathrooms at a time. At 5.3 GPM it handles a shower plus a sink, but simultaneous heavy use in a larger home may need a higher-capacity model.

Can it be installed indoors?

No. It is designed for outdoor wall mounting and vents directly. Indoor installs need a different Rinnai model with a flue.

How does it compare with a condensing tankless heater?

It costs less upfront and installs outdoors without a condensate drain, but its 0.81 UEF is lower than the 0.90-plus of condensing units.

Does it need electricity?

Yes. It uses a 120V AC connection for ignition, display and Wi-Fi, drawing about 4 amps.

What temperature range does it support?

120°F to 140°F, set on the digital display. It does not go above 140°F.

Is it Wi-Fi capable out of the box?

The unit is Wi-Fi capable, but you may need Rinnai's control accessory to connect it to an app.

Where is the Rinnai RE140eN cheapest?

At Home Depot, for $795.69, as of our latest check.

What do buyers say about the Rinnai RE140eN?

Rated 4.4 out of 5 from 295 ratings.

Where can I buy the Rinnai RE140eN?

10 stores we checked sell it, including Home Depot, Ferguson Home, WebstaurantStore.com, Big Frog Supply, eBay.

Rinnai RE140eN

Best price now

$795.69at Home DepotObserved at 8:27 PM

Compared across 11 stores. Prices are checked against each store and labelled with when.

Visit Home Depot

Rinnai RE140eN

Best price now

$795.69at Home DepotObserved at 8:27 PM

Compared across 11 stores. Prices are checked against each store and labelled with when.

Visit Home Depot

Ask our agent about this product

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Price facts

Last seen at $795.69 at Home Depot on Nov 8.
Checked at 11 stores.

Our take on the Rinnai RE140eN

The Rinnai RE140eN is a natural gas, non-condensing tankless water heater rated at 140,000 BTU and up to 5.3 gallons per minute. It is built for outdoor wall mounting, so it vents directly and needs no indoor flue. The 0.81 Uniform Energy Factor is decent for a non-condensing unit but below the 0.90-plus of condensing models. It suits small to medium homes and mild climates where an outdoor install is allowed; owners like the endless hot water and compact size, while some find the 120-140°F range and outdoor-only placement limiting.

Best forSmall to medium householdsOutdoor or mild-climate installationsReplacing a tank heater with limited indoor spaceWhole-home hot water without a storage tank

Pros

Endless hot water at up to 5.3 GPM
Compact wall-mounted cabinet about the size of a suitcase
Outdoor installation needs no indoor venting
Digital display, freeze protection and Wi-Fi capability
Recirculation-capable for faster hot water at fixtures

Cons

Non-condensing design is less efficient than condensing rivals
Outdoor-only mounting rules out cold-climate or indoor installs
Temperature capped at 140°F
Electric ignition and controls need a 120V outlet
Minimum 20 psi and 0.75-inch gas line requirements add install cost

Rinnai RE140eN prices at every store

Home DepotNew
In stock
$795.69Free shippingObserved at 8:27 PM
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Ferguson HomeNew
In stock
$795.69Free shippingObserved at 8:27 PM
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WebstaurantStore.comNew
In stock
$795.69Free shippingObserved at 8:27 PM
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Big Frog SupplyNew
In stock
$795.69Free shippingObserved at 8:27 PM
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Lowe'sNew
In stock
$795.69Free shippingObserved at 8:27 PM
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eBayNew
In stockSold by buildinc
$797.80Free shippingObserved at 8:27 PM
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Supply OnlineNew
In stock
$884.10Free shippingObserved at 8:27 PM
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Global IndustrialNew
In stock
$969.00+ $56.69 shippingObserved at 8:27 PM
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Distinct DesignsNew
In stock
$1,263.00Free shippingObserved at 8:27 PM
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eBayOpen box
Availability unknownSold by efaucets (99.7% positive, 3,400 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.
$497.42Free shippingObserved at 8:27 PM
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WalmartNew
Out of stockSold by UnbeatableSaleReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$1,125.36+ $25.99 shippingObserved at 8:27 PM
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Rinnai RE140eN price history

Lowest price we've seen: $795.69 on Nov 9 at Home Depot. Tracked across 9 stores since Nov 9.

What reviewers say

4.4 / 5295 ratings

Owners rate it well overall, praising steady hot water and simple setup. Complaints center on outdoor-only placement and the modest efficiency for the price class.

What people mention

Hot water supplyPraisedOwners say it keeps up with showers and appliances without running cold.
InstallationMixedSome find mounting and hookup straightforward; others note the gas line and venting rules add cost.
EfficiencyMixedThe 0.81 UEF is fine for non-condensing but below condensing rivals.
Outdoor placementCriticisedBuyers in cold climates or indoor spaces find the outdoor-only requirement a dealbreaker.
NoisePraisedReviewers describe operation as quiet compared with tank heaters.

About the Rinnai RE140eN

RE140eN is the perfect combination of high efficiency, comfort and value in a natural gas non-condensing tankless water heater from Rinnai. Ideal for small to medium homes or remodels. Only the size of a small suitcase, is easy-to-install, reliable, and perfect for outdoor locations. Rinnai products provide peace of mind with warranties that surpass the competition.Features Uniform Energy Factor (UEF): 0.81 10,400 BTU (minimum), 140,000 BTU (maximum) Up to twice the lifespan of most tanks Never run out of hot water Compact size to fit every space Water Heater Features: Digital Display, Freeze Protection, Overheat Protection, Ultra LoNox, Wall Mounted, Wi-FiSpecifications Width: 14.06 in. Depth: 10.75 in. Height: 24.61 in. Connection Size: 0.75 in. Gas Connection: 0.75 in. Color: Silver Amperage: 4 A Series: RE High Efficiency Max PSI: 150 psi Gallons per Minute: 5.3 gal/min Temperature Range: 120 - 140 °F Style: Tankless Water Heater Wattage: 71 W Voltage: 120 V Min PSI: 20 psi Connection Style: NPT BTU: 140000 Fuel Type: Natural Gas Certifications: AHRI, CSA Country of Origin: USA - SKU: NXDT217986

Specifications

Mounting: YesSource
Support for Three-Phase: NoSource
Width ("): 14.05Source
Type: Tankless Water HeaterSource

Questions and answers

Is the RE140eN good for a family of four?: Yes for one to two bathrooms at a time. At 5.3 GPM it handles a shower plus a sink, but simultaneous heavy use in a larger home may need a higher-capacity model.
Can it be installed indoors?: No. It is designed for outdoor wall mounting and vents directly. Indoor installs need a different Rinnai model with a flue.
How does it compare with a condensing tankless heater?: It costs less upfront and installs outdoors without a condensate drain, but its 0.81 UEF is lower than the 0.90-plus of condensing units.
Does it need electricity?: Yes. It uses a 120V AC connection for ignition, display and Wi-Fi, drawing about 4 amps.
What temperature range does it support?: 120°F to 140°F, set on the digital display. It does not go above 140°F.
Is it Wi-Fi capable out of the box?: The unit is Wi-Fi capable, but you may need Rinnai's control accessory to connect it to an app.
Where is the Rinnai RE140eN cheapest?: At Home Depot, for $795.69, as of our latest check.
What do buyers say about the Rinnai RE140eN?: Rated 4.4 out of 5 from 295 ratings.
Where can I buy the Rinnai RE140eN?: 10 stores we checked sell it, including Home Depot, Ferguson Home, WebstaurantStore.com, Big Frog Supply, eBay.