Westinghouse Wifi Tankless Water Heater or Westinghouse Tankless Water Heater Propane? Which Westinghouse Model to Buy
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You are deciding between the westinghouse wifi tankless water heater vs tankless water heater propane model. Both units deliver instant hot water for whole-house use with similar flow rates. The main difference is fuel source and placement. One runs on electricity with smart app control for indoor walls. The other uses propane for outdoor mounting with a wired digital display. You need to match the unit to your home’s power and gas infrastructure.
Key differences
| Aspect | Westinghouse 24kW WiFi Tankless Water Heater | Westinghouse Outdoor Propane 5.1 GPM Tankless Heater |
|---|---|---|
| Fuel Type | Electric | Propane |
| Installation Location | Indoor | Outdoor |
| Flow Rate | 5.55 GPM | 5.1 GPM |
| Power Source | 240V | 120V AC |
| Controls | WiFi and app | Wired digital controller |
Which one should you choose?
Choose Westinghouse 24kW WiFi Tankless Water Heater if
- You have a dedicated 240V electrical circuit and need an indoor unit.
- You want to adjust temperature settings remotely using a smartphone app.
- You need the highest possible flow rate for multiple simultaneous fixtures.
Choose Westinghouse Outdoor Propane 5.1 GPM Tankless Heater if
- You have outdoor space and access to a propane tank or line.
- You prefer a physical wired controller for direct temperature adjustments.
- You want high temperature stability with ±1°F precision during operation.
Verdict: Choose the electric model if you have the necessary 240V wiring and want smart home integration. Pick the propane model if you are installing outside or already have gas lines available. Both provide continuous hot water, so your choice depends on your existing utility infrastructure.
Fuel Type and Control Comparison
Fuel source
The Westinghouse 24kW WiFi Tankless Water Heater runs on 240V electricity, drawing 100A. It requires three 40-amp breakers and 8 AWG wire. The Westinghouse Outdoor Propane 5.1 GPM Tankless Heater uses propane gas at 120,000 BTU. It needs a 120V AC power supply for its electronics and fan. You must choose based on your existing infrastructure. Electric models need heavy gauge wiring. Propane models need gas lines. Both provide instant hot water, but the energy source dictates your installation requirements and ongoing fuel costs.
Installation location
The electric unit is designed for indoor wall mounting. Its compact size allows it to mount flush against a wall, taking up zero floor space. It is suitable for bathrooms, kitchens, or offices inside apartments and homes. The propane unit is engineered specifically for outdoor wall mounting. It features a 12-speed DC fan to handle wind and prevent flue backdraft. It includes self-heating to protect internal waterways in cold weather. You cannot install the propane model indoors due to ventilation needs. Choose the electric model for interior spaces and the propane model for exterior walls.
Smart connectivity
The electric heater includes built-in Wi-Fi for smart home integration. You can remotely adjust the temperature and monitor usage via an app. It also supports voice commands through Alexa and Google Home. The propane heater does not list Wi-Fi or app connectivity. Instead, it comes with a wired digital controller. You can adjust the temperature from 95°F to 158°F using this wired unit. It also displays error codes for troubleshooting. If you want remote control from your phone, the electric model is the only choice.
Flow rate
The electric heater delivers up to 5.55 GPM with a starting flow rate of 0.79 GPM. The propane heater delivers up to 5.1 GPM with an ultra-low 0.53 GPM activation rate. Both units support multiple fixtures simultaneously, such as showers and kitchen sinks. The electric model has a slightly higher maximum flow rate. The propane model activates at a lower flow, which may help in older plumbing systems with lower pressure. Both are suitable for whole-house use for small to medium families. The difference is marginal, but the electric unit moves more water.
Temperature stability
The propane heater features intelligent self-modulating water-gas linkage technology. It maintains outlet temperature within ±1°F throughout operation. This precision avoids sudden hot-cold fluctuations during showers. The electric heater does not specify its temperature stability range in the provided data. It provides instant hot water but lacks the detailed modulation description found in the propane specs. If precise temperature consistency is your top priority, the propane model offers verified stability. The electric model provides consistent heat but without the same documented precision metrics.
Choose the right Westinghouse model
Smart home owners with electric service
You need remote control and voice commands. This 24kW electric unit connects via Wi-Fi to Alexa or Google Home. You can adjust temperature and monitor usage from an app. It draws 100A across three 40-amp breakers. The compact 17-inch height fits tight indoor spaces like apartments.
Users needing precise temperature stability
You want consistent water heat without fluctuations. This propane model uses self-modulating technology to maintain temperature within ±1°F. It features a wired digital controller for easy adjustments from 95°F to 158°F. The high-efficiency design reduces gas consumption while providing stable hot water for multiple fixtures simultaneously.
Outdoor installation or off-grid setups
You require an outdoor-rated unit with gas fuel. This CSA-certified propane heater is designed for exterior wall mounting. It includes freeze protection and a wind-resistant fan. It delivers 5.1 GPM with 120,000 BTU. The compact design suits tiny homes, cabins, or rental properties where propane access is available.
The products compared
Westinghouse 24kW WiFi Tankless Water Heater
Best for: Whole-house electric hot water with smart control
- Fuel Type
- Electric
- Flow Rate
- Max 5.55 GPM
- Wattage
- 24 kW
- Voltage
- 240V
- Certification
- ETL
- Dimensions
- 17" x 13" x 4.3"
View on Amazon: Westinghouse 24kW WiFi Tankless Water Heater Affiliate link
This Westinghouse 24kW electric tankless water heater delivers up to 5.55 GPM of hot water at 240V. It features smart Wi-Fi control for remote temperature adjustments via an app or voice commands. The compact unit measures 17 x 13 x 4.3 inches, saving space. It requires a 100A breaker and 8 AWG wire. This model suits whole-house needs in apartments or homes where electric power is available.
Pros
- Provides up to 5.55 GPM flow rate for simultaneous use
- Includes smart Wi-Fi for app and voice control
- Compact design measures 17 x 13 x 4.3 inches
- Low starting flow rate of 0.79 GPM
Cons
- Requires a substantial 100A electrical circuit and breaker
- Uses 8 AWG wiring which is thick and rigid
- No propane option for off-grid or gas-only setups
Good fit if
- You need smart temperature control via a mobile app
- You have the electrical capacity for a 100A breaker
- You want a compact unit for wall mounting
Skip if
- You only have access to propane fuel sources
- Your electrical panel cannot support a 100A circuit
- You prefer a smaller 11kW or 14kW unit
Verdict: Westinghouse 24kW Electric Tankless Heater is ideal for homeowners with adequate electrical infrastructure who want precise digital control over their hot water temperature.
Westinghouse Outdoor Propane 5.1 GPM Tankless Heater
Best for: Outdoor whole-house propane hot water
- 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 Affiliate link
This outdoor propane unit delivers 5.1 GPM at 120,000 BTU. It maintains temperature within ±1°F using self-modulating technology. The wired digital controller allows adjustment from 95°F to 158°F. It requires 120V AC power and professional installation. This model suits outdoor setups for 2–4 fixtures, offering continuous hot water for showers and sinks.
Pros
- Delivers 5.1 GPM flow rate for whole-house use
- Maintains ±1°F temperature stability during operation
- Includes wired digital controller for precise settings
- CSA/ANSI certified for safety and performance
Cons
- Requires outdoor installation only
- Needs professional licensed installation
- Wired controller limits placement flexibility
Good fit if
- You need an outdoor propane water heater
- You want precise temperature control within ±1°F
- You have access to 120V AC power
Skip if
- You require indoor installation
- You need natural gas fuel type
- You prefer wireless remote control
Verdict: Westinghouse 120K BTU Propane Tankless Heater provides stable hot water for outdoor use. It fits homes needing 5.1 GPM with precise temperature control.
Specifications side by side
| Spec | Westinghouse 24kW WiFi Tankless Water Heater | Westinghouse Outdoor Propane 5.1 GPM Tankless Heater |
|---|---|---|
| Fuel Type | Electric | Propane |
| Flow Rate | Max 5.55 GPM | 5.1 GPM |
| BTU | not stated | 120,000 BTU |
| Wattage | 24 kW | not stated |
| Installation Location | not stated | Outdoor |
| Voltage | 240V | 120 V AC |
| Temperature Control | not stated | 95°F–158°F, ±1°F |
| Certification | ETL | CSA, ANSI |
| Dimensions | 17" x 13" x 4.3" | 23.9 x 15.5 x 7.3 in |
| Use | Whole House | Whole House |
| Venting Type | not stated | Non-Condensing |
| Features | WiFi | not stated |
| Weight | 17 pounds | not stated |
| Size | L-24 | APOLO-120K |
| Color | Gray 24 | Grey 51PO |
| Model | WET-24K-G | AMZ-HS120A1G-LP |
Frequently asked questions
Can the Westinghouse WiFi tankless water heater work without Wi-Fi?
Yes, the unit operates normally without an internet connection. The WiFi feature only adds remote control and monitoring capabilities. You can still adjust the temperature manually on the digital display. The heater will maintain your set water temperature regardless of network status.
What size breaker does the Westinghouse 24kW electric heater need?
The 24kW electric model requires three 40-amp circuit breakers. It also needs 8 AWG wiring for safe operation. This high electrical demand makes it suitable for homes with robust electrical infrastructure. You must ensure your panel can handle this load before installation.
Is the Westinghouse propane heater safe for outdoor installation?
Yes, the Westinghouse Outdoor Propane 5.1 GPM Tankless Heater is designed specifically for outdoor use. Its weather-resistant construction protects internal components from the elements. You should install it in a well-ventilated area away from direct exposure to heavy rain if possible.
How wide is the Westinghouse 24kW WiFi water heater?
The Westinghouse 24kW WiFi Tankless Water Heater measures 13 inches in width. It is also 13 inches deep and 17.1 inches tall. This compact footprint allows it to fit in most utility closets or garage spaces without taking up excessive room.
Does the propane model have smart home integration?
The product data does not list WiFi or smart home features for the propane model. It focuses on delivering 120,000 BTU of heat for outdoor whole-house use. You will likely need to control it manually via its physical interface rather than an app.
What is the flow rate for the Westinghouse propane heater?
The Westinghouse Outdoor Propane 5.1 GPM Tankless Heater provides a flow rate of 5.1 gallons per minute. This capacity supports whole-house hot water needs for multiple simultaneous uses. It ensures stable water temperature even when several fixtures are running at once.