Westinghouse Tankless Water Heaters: 9 Picks Ranked by Specs
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These are the best Westinghouse tankless water heaters we selected from 9 models. We ranked them strictly by published specifications. Westinghouse offers electric, gas, and propane units in various sizes, from compact under-sink heaters to whole-home gas systems. The top pick is the Westinghouse 24kW WiFi Tankless Water Heater because it delivers strong flow and smart monitoring for whole-home electric setups. All choices rely on data provided in the listings.
Quick picks
Our 9 picks
Westinghouse 24kW WiFi Tankless Water Heater
Best for: whole-home electric setups needing smart controls
- Fuel Type
- Electric
- Flow Rate
- 5.55 GPM
- Wattage
- 24kW
- Voltage
- 240V
- Temperature Control
- 86-140℉
- Certification
- ETL
View on Amazon: Westinghouse 24kW WiFi Tankless Water Heater
This Westinghouse electric tankless water heater delivers up to 5.55 GPM of continuous hot water at 240V and 24kW. It connects via 3/4-inch NPT fittings and features built-in Wi-Fi compatibility for monitoring and adjustments through an app or voice assistants. With its 100A demand running across three 40A breakers, it suits you if you need whole-home electric capacity without sacrificing valuable floor space.
Pros
- Delivers up to 5.55 GPM maximum water flow rate
- Smart Wi-Fi connectivity supports app control and voice commands via Alexa and Google Home
- Compact wall-hung dimensions of 17 by 13 by 4.3 inches
- Standard 3/4-inch NPT water connections
Cons
- Demands significant electrical service requiring three 40A double-pole breakers and 8 AWG wiring
- Requires a minimum activation flow rate of 0.79 GPM to produce hot water
Good fit if
- You need whole-house electric heating that supplies up to 5.55 GPM.
- You want app or voice control to adjust temperature and monitor water usage.
- You have panel capacity to support a 100A, 240V electrical connection.
Skip if
- You lack electrical capacity for three 40A double-pole breakers.
- You need hot water to activate at trickle rates below 0.79 GPM.
Verdict: Westinghouse 24kW Smart Electric Tankless Water Heater delivers strong flow and smart monitoring for whole-home setups. It stands out on specs provided your electrical panel can support its 100A draw.
Westinghouse 7.9 GPM Natural Gas Tankless Water Heater
Best for: natural gas homes needing multi-shower capacity
- Fuel Type
- Natural Gas
- Flow Rate
- 7.9 GPM
- BTU
- 180,000 BTU
- Installation Location
- Indoor
- Voltage
- 120 V AC
- Temperature Control
- 95°F–149°F, ±1°F
View on Amazon: Westinghouse 7.9 GPM Natural Gas Tankless Water Heater
This indoor natural gas tankless water heater delivers up to 7.9 GPM with a 180,000 BTU burner. It powers up to three showers at once and self-modulates within 1°F. It requires 120V AC power and 3/4-inch NPT plumbing connections. Built-in Wi-Fi provides remote app and voice temperature adjustments. You get whole-home hot water capacity if you have a natural gas supply line and indoor venting space.
Pros
- Maximum flow rate of 7.9 GPM and 180,000 BTU output
- Maintains temperature stability within 1°F via self-modulation
- Low activation flow rate of 0.53 GPM and 15 PSI minimum operating pressure
- Built-in Wi-Fi for app and voice control without extra accessories
Cons
- Requires dedicated natural gas line and 120V AC electrical hookup
- Indoor installation only; cannot be mounted outdoors
- Heat exchanger warranty limited to 5 years, complete unit to 2 years
Good fit if
- You have a natural gas line and need to supply up to three fixtures at once.
- You have low water pressure down to 15 PSI or use low-flow fixtures.
- You want remote app and voice controls for temperature management.
Skip if
- You rely on an all-electric or propane setup rather than natural gas.
- You need an outdoor-rated unit to avoid indoor venting requirements.
Verdict: Westinghouse 7.9 GPM Indoor Natural Gas Tankless Heater provides high-volume output and precise temperature stability for natural gas households. Its smart connectivity and low-pressure activation make it a capable whole-home choice.
Westinghouse 6.5kW 240V Under-Sink Tankless Water Heater
Best for: single-sink point-of-use installations
- Fuel Type
- Electric
- Wattage
- 6.5kW
- Voltage
- 240V
- Temperature Control
- 80–130°F in 1°F increments
- Dimensions
- 6.9 x 8.1 x 2.5 inches
View on Amazon: Westinghouse 6.5kW 240V Under-Sink Tankless Water Heater
This is an electric point-of-use tankless water heater rated at 6.5kW and 240V. It measures 6.9 by 8.1 by 2.5 inches, fitting under a single sink or vanity. You get Wi-Fi control with adjustments from 80°F to 130°F in 1°F increments. It requires a dedicated 30A breaker and 10 AWG wiring. This unit suits you if you need dedicated hot water for a handwashing or dish-rinsing sink without feeding multiple fixtures.
Pros
- Wi-Fi and voice control with 80°F to 130°F adjustment in 1°F steps
- Compact dimensions of 6.9 x 8.1 x 2.5 inches fit under sinks
- Operates on a single 30A two-pole breaker and 10 AWG wire
- Includes IPX4 water resistance and anti-scald protection
Cons
- Not sized to supply showers, bathtubs, or multiple simultaneous fixtures
- Requires a 240V electrical connection rather than standard 120V
Good fit if
- You need a compact water heater dedicated to a single bathroom or kitchen sink.
- You have an available 240V circuit with a 30A breaker and 10 AWG wiring.
- You want smart controls through Wi-Fi, Alexa, or Google Home.
Skip if
- You need to supply hot water to a shower, tub, or whole house.
- You only have a 120V outlet available at your sink.
Verdict: Westinghouse 6.5kW 240V Under-Sink Tankless Water Heater delivers precise, Wi-Fi-controlled heating for a single kitchen or bathroom sink. Its 30A electrical draw makes it a practical point-of-use choice where whole-house capacity is not needed.
Westinghouse 1.5-Gallon 120V Mini Tank Water Heater
Best for: single-sink handwashing and compact point-of-use setups
- Fuel Type
- Electric
- Wattage
- 1440W
- Capacity
- 1.5 Gallon
- Voltage
- 120 V
- Certification
- CSA
- Dimensions
- 15.7 x 10.1 x 10.1 inches
View on Amazon: Westinghouse 1.5-Gallon 120V Mini Tank Water Heater
This Westinghouse unit is a 1.5-gallon electric mini-tank water heater designed for point-of-use installations. It runs on a standard 120V outlet and draws 1440W of power, requiring no specialized electrical upgrades. Measuring 15.7 by 10.1 by 10.1 inches and weighing 11 pounds, it mounts under a sink on the wall, bracket, or floor. It suits you if you need instant hot water for a single sink or handwashing station.
Pros
- Plugs directly into a standard 120V electrical outlet
- Compact 15.7 x 10.1 x 10.1-inch dimensions fit under single sinks
- 1440W stainless steel element with glass-lined tank and magnesium anode
- Mounts to the wall, on a bracket, or directly on the floor
Cons
- Limited 1.5-gallon capacity restricts use to single sinks or light handwashing
- Stores water in a mini tank rather than heating on demand continuously
- Not sized for showers or whole-home hot water demands
Good fit if
- You need point-of-use hot water at a single bathroom sink or RV tap.
- You want an easy setup that plugs into an existing 120V outlet.
- You have tight under-sink space that supports floor, wall, or bracket mounting.
Skip if
- You need continuous, endless hot water for whole-house demands or showers.
- You require high flow rates for simultaneous fixtures.
Verdict: Westinghouse 1.5-Gallon 120V Mini Tank Heater is a compact point-of-use option that plugs into any standard 120V outlet to eliminate wait times at a single sink. Its 1.5-gallon capacity handles light handwashing tasks without requiring dedicated 240V electrical wiring.
Westinghouse Outdoor Propane 5.1 GPM Tankless Heater
Best for: outdoor propane homes running multiple fixtures
- Fuel Type
- Propane
- Flow Rate
- 5.1 GPM
- BTU
- 120,000 BTU
- Installation Location
- Outdoor
- Voltage
- 120 V AC
- Temperature Control
- 95°F–158°F, ±1°F
View on Amazon: Westinghouse Outdoor Propane 5.1 GPM Tankless Heater
This outdoor propane tankless water heater delivers up to 5.1 GPM with a 120,000 BTU heating output. It runs on liquid propane with a 120V AC power connection and features an activation flow rate of 0.53 GPM at 15 PSI. If you have an outdoor mounting space and need continuous hot water for two to four fixtures simultaneously, this unit gives you precise temperature adjustments from 95°F to 158°F.
Pros
- Delivers up to 5.1 GPM with 120,000 BTU heating capacity
- Low activation threshold of 0.53 GPM and 15 PSI minimum water pressure
- Includes wired digital controller with 95°F to 158°F range and ±1°F stability
- Built-in internal freeze protection and 12-speed DC wind-resistant fan
Cons
- Requires outdoor wall installation only
- Requires a 120V AC electrical connection to operate
- Must be drained manually if power drops below 32°F
Good fit if
- You run liquid propane and plan to mount your heater outdoors.
- You need up to 5.1 GPM to supply two to four fixtures simultaneously.
- You have older plumbing requiring a low 0.53 GPM activation flow.
Skip if
- You need an indoor installation or run natural gas.
- You lack a nearby 120V AC electrical power source outside.
Verdict: Westinghouse 5.1 GPM Outdoor Propane Water Heater provides steady 120,000 BTU performance for outdoor liquid propane setups serving two to four fixtures. Its included wired remote and low 0.53 GPM activation deliver reliable off-grid or residential outdoor utility.
Westinghouse 8kW Smart WiFi Tankless Water Heater
Best for: single-faucet under-sink hot water installations
- Fuel Type
- Electric
- Wattage
- 8 kW
- Voltage
- 240 V
- Temperature Control
- 80°F-130°F
- Dimensions
- 6.9" x 8.1" x 2.5"
- Use
- Under Sink
View on Amazon: Westinghouse 8kW Smart WiFi Tankless Water Heater
This compact 8kW, 240V electric unit heats water on demand for point-of-use fixtures like vanities or kitchen sinks. You only need a single 40A circuit and standard 1/2-inch NPT plumbing fittings for installation. Its 6.9 by 8.1 by 2.5-inch frame mounts inside tight under-sink spaces. Built-in WiFi lets you adjust temperatures from 80°F to 130°F via an app or voice controls.
Pros
- Operates on a single dedicated 40A, 240V circuit
- WiFi connectivity with Alexa and Google Home integration
- Compact 6.9 x 8.1 x 2.5-inch chassis fits tight spaces
- Adjustable temperature range from 80°F to 130°F
Cons
- Not engineered or rated for shower applications
- Restricted to single-faucet point-of-use delivery
Good fit if
- You need a dedicated hot water source for a single sink or vanity.
- You have an available 240V line with a 40A breaker.
- You prefer adjusting water temperature via mobile app or voice control.
Skip if
- You need to supply hot water to a shower or multiple simultaneous fixtures.
- You only have standard 120V electrical wiring available at the installation point.
Verdict: Westinghouse 8kW Smart Tankless Water Heater provides dedicated heating for individual sinks through a manageable 40A circuit. Its compact dimensions and wireless temperature controls make it a practical fit for under-sink cabinets.
Westinghouse 11kW Smart Wi-Fi Tankless Water Heater
Best for: single-shower setups and small apartments
- Fuel Type
- Electric
- Voltage
- 240V
- Wattage
- 11 kW
- Features
- WiFi
- Dimensions
- 9.5 × 9.5 × 14.2 inches
- Weight
- 10 pounds
View on Amazon: Westinghouse 11kW Smart Wi-Fi Tankless Water Heater
This compact electric unit delivers hot water on demand with an 11 kW heating capacity at 240 volts. It provides a flow rate up to 2.6 GPM with a minimum activation threshold of 0.4 GPM. Smart Wi-Fi integration lets you adjust temperatures between 86°F and 140°F using an app or voice controls. It suits you if you need dedicated hot water for an apartment, single shower, or point-of-use application.
Pros
- Delivers up to 2.6 GPM flow rate on a 240V, 11 kW circuit
- Wi-Fi connectivity enables app and voice temperature adjustments from 86°F to 140°F
- Compact 14.2 by 9.5 by 3.5 inch footprint mounts flush to walls
- Built-in four-layer protection covering leakage, overheat, dry-fire, and high voltage
Cons
- Requires a dedicated 50-amp double-pole breaker and 8 AWG wiring
- Maximum output of 2.6 GPM limits simultaneous high-demand fixtures
- Requires at least 0.4 GPM water flow to activate heating
Good fit if
- You need on-demand hot water for a single shower or point-of-use fixture
- You want remote temperature adjustments via Wi-Fi and voice assistant platforms
- You have an electrical setup supporting a 50A breaker and 240V supply
Skip if
- You need whole-house hot water across multiple simultaneous high-flow showers
- You have fixtures that run below the 0.4 GPM activation threshold
- You lack electrical panel capacity for a 46A draw and 50A double-pole breaker
Verdict: Westinghouse 11kW Smart Electric Tankless Water Heater provides steady, app-controlled heating for single-fixture or apartment setups. Its 2.6 GPM capacity and compact dimensions fit tight spaces that have a dedicated 50-amp electrical supply.
Westinghouse 18kW Smart Electric Tankless Water Heater
Best for: 1-2 bathroom homes with 75A electrical capacity
- Fuel Type
- Electric
- Flow Rate
- 4.2 GPM
- Wattage
- 18kW
- Voltage
- 240V
- Temperature Control
- 86°F to 140°F in 1° increments
- Certification
- ETL
View on Amazon: Westinghouse 18kW Smart Electric Tankless Water Heater
This 18kW, 240V electric tankless water heater delivers up to 4.2 GPM for one to two simultaneous showers. It requires a 75-amp electrical service with two 40-amp double-pole breakers and 8 AWG wiring. You get smart Wi-Fi integration for app and voice control, plus a local rotary knob to set temperatures from 86°F to 140°F. It suits small to medium homes needing whole-house electric heating without a bulky storage tank.
Pros
- Up to 4.2 GPM flow rate supports 1 to 2 simultaneous showers
- Wi-Fi connectivity with Alexa and Google Home voice control
- Adjustable temperature from 86°F to 140°F in 1° increments
- Standard 3/4-inch NPT bottom water connections
Cons
- Demands 75A service across two 40A double-pole breakers
- Needs at least 0.66 GPM flow to activate heating
Good fit if
- You have panel space for two 40-amp double-pole breakers and 8 AWG wiring.
- You want remote temperature adjustments via mobile app or voice assistant.
- You run one or two bathrooms simultaneously within a 4.2 GPM limit.
Skip if
- You lack the electrical capacity to handle a dedicated 75-amp load.
- You require more than 4.2 GPM for high-demand multi-bath households.
Verdict: Westinghouse 18kW Smart Electric Tankless Water Heater provides steady 4.2 GPM output with Wi-Fi adjustments for homes wired for a 75-amp load.
Westinghouse 11kW 240V Electric Tankless Water Heater
Best for: compact 240V electric point-of-use heating
- Fuel Type
- Electric
- Wattage
- 11kW
- Voltage
- 240V
- Dimensions
- 14.2 x 9.5 x 9.5 inches
View on Amazon: Westinghouse 11kW 240V Electric Tankless Water Heater
This Westinghouse electric tankless water heater provides on-demand heating with an 11kW power rating running on a 240V electrical connection. Its compact light gray casing measures 14.2 inches high, 9.5 inches wide, and 9.5 inches deep, allowing you to install it in tight utility spaces. If you have 240V wiring and need an 11kW electric point-of-use heater, this unit fits your layout.
Pros
- 11kW electric heating output
- Standard 240V electrical connection
- Compact 14.2 x 9.5 x 9.5-inch dimensions
- Tankless electric design eliminates standby storage
Cons
- Requires 240V wiring rather than standard 120V
- No smart or Wi-Fi control listed in specifications
- Flow rate GPM specifications not provided
Good fit if
- You have a dedicated 240V electrical setup ready.
- You need an 11kW electric unit that fits within a 14.2 by 9.5-inch space.
Skip if
- You require a gas or propane-fueled water heater.
- You want built-in Wi-Fi connectivity for remote monitoring.
Verdict: Westinghouse 11kW 240V Electric Tankless Water Heater delivers 11kW of electric heating power within a compact 14.2 by 9.5-inch footprint. It provides a straightforward, tankless option for spaces equipped with 240V power.
Specifications side by side
| Spec | Westinghouse 24kW WiFi Tankless Water Heater | Westinghouse 7.9 GPM Natural Gas Tankless Water Heater | Westinghouse 6.5kW 240V Under-Sink Tankless Water Heater | Westinghouse 1.5-Gallon 120V Mini Tank Water Heater | Westinghouse Outdoor Propane 5.1 GPM Tankless Heater | Westinghouse 8kW Smart WiFi Tankless Water Heater | Westinghouse 11kW Smart Wi-Fi Tankless Water Heater | Westinghouse 18kW Smart Electric Tankless Water Heater | Westinghouse 11kW 240V Electric Tankless Water Heater |
|---|---|---|---|---|---|---|---|---|---|
| Fuel Type | Electric | Natural Gas | Electric | Electric | Propane | Electric | not specified | Electric | Electric |
| Flow Rate | 5.55 GPM | 7.9 GPM | not specified | not specified | 5.1 GPM | not specified | not specified | 4.2 GPM | not specified |
| BTU | not specified | 180,000 BTU | not specified | not specified | 120,000 BTU | not specified | not specified | not specified | not specified |
| Wattage | 24kW | not specified | 6.5kW | 1440W | not specified | 8 kW | not specified | 18kW | 11kW |
| Installation Location | not specified | Indoor | not specified | not specified | Outdoor | not specified | not specified | not specified | not specified |
| Capacity | not specified | not specified | not specified | 1.5 Gallon | not specified | not specified | not specified | not specified | not specified |
| Voltage | 240V | 120 V AC | 240V | 120 V | 120 V AC | 240 V | not specified | 240V | 240V |
| Temperature Control | 86-140℉ | 95°F–149°F, ±1°F | 80–130°F in 1°F increments | not specified | 95°F–158°F, ±1°F | 80°F-130°F | not specified | 86°F to 140°F in 1° increments | not specified |
| Certification | ETL | CSA | not specified | CSA | CSA, ANSI | not specified | not specified | ETL | not specified |
| Dimensions | 17" H × 13" W × 4.3" D | 26.2 x 17.1 x 17.1 in | 6.9 x 8.1 x 2.5 inches | 15.7 x 10.1 x 10.1 inches | 23.9 x 15.5 x 7.3 in | 6.9" x 8.1" x 2.5" | not specified | 17"H × 13"W × 4.3"D | 14.2 x 9.5 x 9.5 inches |
| Use | Whole House | Whole House | not specified | RV, Under Sink | Whole House | Under Sink | not specified | not specified | not specified |
| Venting Type | not specified | not specified | not specified | not specified | Non-Condensing | not specified | not specified | not specified | not specified |
| Features | WiFi | WiFi | not specified | not specified | not specified | WiFi | WiFi | WiFi | not specified |
| Weight | 17 pounds | 39.3 pounds | not specified | 11 pounds | not specified | not specified | 10 pounds | not specified | not specified |
| Size | L-24 | APOLO-180K | S-6.5 | 1.5 Gallon | APOLO-120K | S-8 | S-11 | not specified | not specified |
| Color | Gray 24 | Grey 79NI | Deep Blue | Gray | Grey 51PO | Gray | Gray 11 | Gray | Light Gray |
| Model | WET-24K-G | HW180A0G-NG | WET-6K5-D | ES015A1G | AMZ-HS120A1G-LP | WET-08K-B | WET-11K-G | APOLO | ET011KA3G |
Westinghouse Tankless Heater Lineup
Westinghouse covers electric, natural gas, and propane options. The 24kW WiFi model leads with 100A draw for whole-home use. The 7.9 GPM natural gas unit serves multi-shower needs. The 5.1 GPM propane heater fits outdoor setups with 120,000 BTU output. These units handle higher flow rates for larger households. Smaller electric units like the 6.5kW and 8kW models target single sinks. They draw 30A and 40A respectively. The 1.5-gallon mini tank plugs into standard 120V outlets. It eliminates wait times for handwashing without dedicated wiring. Choose based on your fuel source and electrical capacity.
Where Westinghouse Fits Your Home
This brand covers point-of-use sinks, single showers, and whole-home systems. You can choose from compact 6.5kW electric units or high-output 24kW electric models. Gas and propane options provide higher flow rates for multiple fixtures. The range spans from tiny 2.48-inch deep electric heaters to larger 26.2-inch gas units. Most electric models include WiFi controls for remote monitoring. The lineup lacks large commercial-grade capacity or dual-fuel flexibility. You should match your electrical panel amperage or gas line size to the specific unit requirements.
If you need backup power, you can compare the best westinghouse generators by their wattage specifications.
How to Choose the Right One
-
Match Fuel to Supply
Your home’s existing fuel lines dictate the unit type. Electric models like the 24kW WiFi heater require heavy electrical upgrades but offer smart monitoring. Natural gas units, such as the 7.9 GPM indoor model, provide high volume without major electrical changes. Propane options, like the outdoor 5.1 GPM heater, suit off-grid or utility areas. Check your available fuel source first to narrow the field before comparing other specs.
-
Check Electrical Capacity
Electric tankless heaters demand significant amperage. The top-ranked 24kW model needs a 100A panel, which may require an electrical service upgrade. Smaller units like the 8kW smart heater draw 40A, while the 6.5kW under-sink version uses 30A. Ensure your panel can handle the load. If you lack sufficient capacity, consider gas or propane options, or stick to low-draw point-of-use electric models that fit standard circuits.
-
Define Flow Needs
Flow rate determines how many fixtures run simultaneously. Whole-home systems like the 7.9 GPM natural gas heater support multiple showers. Single-fixture units, such as the 11kW electric model, deliver about 2.6 GPM, suitable for one shower or apartment use. Point-of-use heaters like the 6.5kW under-sink unit serve a single sink. Identify your peak usage to select a unit with adequate flow for your household habits.
-
Verify Installation Location
Placement affects unit selection and venting. Indoor electric models, such as the 18kW smart heater, fit in utility rooms. Outdoor propane units, like the 5.1 GPM model, withstand weather but need gas lines. Compact under-sink heaters, including the 1.5-gallon mini tank, fit under cabinets. Ensure the chosen unit matches your installation space and ventilation requirements to avoid costly retrofits or safety hazards during setup.
-
Assess Physical Dimensions
Tankless units vary in size. The 8kW smart heater is extremely thin at 2.48 inches, ideal for tight under-sink cabinets. Larger whole-home models, like the 7.9 GPM gas heater, measure 17.1 by 26.2 inches and need ample wall space. Measure your intended installation area before buying. Ensure the unit fits both horizontally and vertically, and check weight limits if mounting on drywall or in confined spaces.
Frequently asked questions
What is the best Westinghouse tankless water heater for whole-home use?
The Westinghouse 24kW WiFi model is the top choice for whole-home setups. It delivers strong flow and smart monitoring capabilities. This unit requires a 100A electrical panel to operate correctly. Its 240V voltage and 24 kW wattage support multiple simultaneous fixtures. The compact 13 by 17.1-inch size fits standard utility spaces.
Which Westinghouse heater provides the highest flow rate for gas homes?
The Westinghouse 7.9 GPM Natural Gas unit offers the highest flow rate among gas options. It is designed for indoor installation and multi-shower capacity. This model features precise temperature stability and smart connectivity. Its 180K size ensures consistent performance for whole-home demands. The unit weighs 39.3 pounds and measures 26.2 inches tall.
Are there Westinghouse tankless heaters suitable for outdoor propane setups?
Yes, the Westinghouse 5.1 GPM Outdoor Propane Heater is built for exterior use. It provides 120,000 BTU performance for outdoor liquid propane systems. This unit includes a wired remote for convenient operation. It activates at a low 0.53 GPM flow rate. The compact 15.5-inch width fits tight outdoor utility areas.
What is the smallest Westinghouse tankless water heater for under-sink use?
The Westinghouse 8kW Smart WiFi model is the most compact option for under-sink cabinets. It measures just 2.48 inches wide and 8.07 inches tall. This unit provides dedicated heating for individual sinks via a 40A circuit. Wireless temperature controls allow for easy adjustment. Its small footprint makes it ideal for tight spaces.
Can I control Westinghouse tankless heaters with my smartphone?
Several Westinghouse models include WiFi connectivity for smartphone control. The 24kW, 8kW, 11kW, and 18kW electric units all feature this capability. You can monitor and adjust temperatures remotely. The 6.5kW under-sink model also offers Wi-Fi control. These features allow you to manage hot water settings from anywhere.
Which Westinghouse unit is best for a single shower or apartment?
The Westinghouse 11kW Smart Electric Heater is ideal for single-shower setups. It provides 2.6 GPM capacity with app-controlled heating. This unit fits tight spaces with a 9.5 by 14.2-inch footprint. It requires a dedicated 50-amp electrical supply. The compact design makes it suitable for small apartments or single-fixture installations.