WINTEMP 27kW Tankless Water Heater Alternatives: 6 Similar Picks Compared
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You are looking at wintemp 27kw tankless water heater alternatives because your specific needs might differ from the base model. The original WINTEMP unit delivers 6.5 GPM at 27kW with WiFi control and ETL certification. It requires significant electrical infrastructure, including three 40-amp breakers and 8 AWG wiring. You might want a different option if your home has lower amperage capacity or if you prefer a smaller footprint. Some buyers also seek units without app connectivity or with different temperature ranges.
This guide compares 6 similar picks based on overlapping specifications. We selected these alternatives because they share key traits like 240V electric operation and whole-house capability. You can compare wattage, dimensions, and flow rates to find a better fit for your electrical service. Whether you need higher flow in mild climates or a more compact design for tight spaces, these models offer distinct advantages. Review the specs to match your home’s power limits and hot water demands.
Our top pick: WINTEMP 27kW Electric Tankless Water Heater.
How these alternatives compare
WINTEMP 36kW Electric Tankless Water Heater
The WINTEMP 36kW model increases power to 36 kW, targeting higher flow demands in mild climates. It measures 21.1 inches tall and weighs 36.1 pounds, making it larger and heavier than the 27kW base unit. Both models offer WiFi connectivity for remote temperature control. However, the increased wattage requires even more robust electrical infrastructure than the original. This pick suits users who need maximum volume and can support the higher energy draw. It sacrifices compactness for raw output, making it less ideal for tight spaces.
Westinghouse 24kW WiFi Tankless Water Heater
The Westinghouse 24kW unit offers a lower wattage at 24 kW, which may reduce flow rates compared to the 27kW WINTEMP. It shares the WiFi feature for smart home integration and maintains a compact footprint at 17.1 inches tall. This model weighs only 17 pounds, making it significantly lighter and easier to install than the original. It fits users with 100A electrical capacity who prioritize smart features and space-saving design over maximum power output. If your home has limited electrical room, this smaller unit provides a viable alternative.
NOVIEEX 27kW 7.4 GPM Electric Tankless Water Heater
The NOVIEEX 27kW model matches the original wattage but claims a higher flow rate of 7.4 GPM. It lacks WiFi connectivity, offering only a digital display for temperature control. The unit is silver and measures 15.9 inches tall, similar in height to the WINTEMP but slightly wider at 14.1 inches. This pick suits large homes needing high flow without the complexity of smart app control. Buyers with robust 240V electrical capacity will find it suitable, though it gives up remote monitoring capabilities found in the original model.
NOVIEEX 27kW Electric Tankless Heater
This NOVIEEX 27kW heater shares the same wattage as the original WINTEMP but omits WiFi features. It relies on a digital display for precise temperature management. The dimensions match the other NOVIEEX variant, standing 15.9 inches tall with a silver finish. It is designed for whole-house use with high flow needs. This option is best for users who want reliable instant heat without smart home integration. It requires the same heavy-duty wiring as the original but offers a simpler interface for those who prefer physical controls over app-based adjustments.
Camplux 27 kW Digital Electric Tankless Water Heater
The Camplux 27kW unit matches the original wattage but focuses on a clear digital display rather than WiFi connectivity. It measures 17.1 inches tall and weighs 20.3 pounds, making it slightly taller and lighter than the WINTEMP. This model suits buyers who prioritize visible temperature control and safety certification over remote app features. It provides reliable instant heat for whole-house use. If you prefer a straightforward interface without the need for smart home integration, this unit offers a practical alternative with similar power output and a compact design.
Electrolux 18kW Electric Tankless Water Heater
The Electrolux 18kW model offers significantly lower power at 18 kW, resulting in reduced flow rates compared to the 27kW WINTEMP. It includes WiFi control for remote adjustments, matching the smart features of the original. The unit is 18.7 inches tall and weighs 15.4 pounds, making it lighter but taller than the base model. This pick suits users with strong electrical capacity who prioritize smart features over maximum output. It handles moderate demand well but cannot match the hot water volume of higher wattage units, making it ideal for smaller households or limited use cases.
Quick picks
Our 7 picks
WINTEMP 27kW Electric Tankless Water Heater
Best for: high-flow multi-bathroom homes with strong electrical service
- Fuel Type
- Electric
- Flow Rate
- 6.5 GPM
- Wattage
- 27kW
- Voltage
- 240V
- Temperature Control
- 86°F to 140°F
- Certification
- ETL
View on Amazon: WINTEMP 27kW Electric Tankless Water Heater Affiliate link
The WINTEMP WM27V delivers up to 6.5 GPM of hot water at 27 kW. It uses 240V power and requires three 40-amp breakers. The unit features WiFi control via the Tuya app. You can set temperatures between 86°F and 140°F. Its compact design saves space compared to tank heaters. This model suits homes with 2–4 water points.
Pros
- Delivers up to 6.5 GPM flow rate
- WiFi app control for remote temperature adjustment
- Compact dimensions of 15.9 x 13 x 4.2 inches
- ETL certified for safety and reliability
- Digital display shows real-time usage data
Cons
- Requires three 40-amp double-pole breakers
- Needs 8 AWG wiring for installation
- Maximum current draw of 113A limits electrical compatibility
Good fit if
- You have a 200-amp household electrical service
- You need hot water for 2–4 fixtures
- You want remote temperature control via app
Skip if
- You cannot install three 40-amp breakers
- Your electrical panel lacks space for 8 AWG wiring
- You require a single-circuit installation
Verdict: WINTEMP 27kW Electric Tankless Water Heater fits homes with robust electrical capacity that need high flow for multiple bathrooms. It offers precise app control and safety certifications for reliable daily use.
WINTEMP 36kW Electric Tankless Water Heater
Best for: High-flow needs in mild climates
- Fuel Type
- Electric
- Flow Rate
- Up to 8.7 GPM
- Wattage
- 36 kW
- Voltage
- 240V
- Certification
- ETL
- Dimensions
- 21.5 x 13.7 x 5.2 inches
View on Amazon: WINTEMP 36kW Electric Tankless Water Heater Affiliate link
This WINTEMP WN36 unit delivers 36 kW of power at 240V, reaching a maximum flow rate of 8.7 GPM. It uses self-modulating technology to adjust power based on incoming water temperature and flow. The compact design measures 13.7 inches wide and 21.5 inches high. Built-in WiFi allows remote temperature control. It is designed for homes with three to five bathrooms in mild climates, provided your electrical service can handle the load.
Pros
- High 36 kW wattage output
- Maximum flow rate of 8.7 GPM
- Built-in WiFi for remote control
- ETL certified for safety
Cons
- Requires 150A electrical service and four 40A breakers
- Heavier at 36.1 pounds than smaller units
- Limited to 2-year replacement warranty
Good fit if
- You have a 300A household electrical service
- You need hot water for three to five bathrooms
- You want WiFi remote temperature adjustment
Skip if
- You have less than 150A electrical capacity
- You live in a cold climate requiring higher flow
- You prefer a lighter installation unit
Verdict: WINTEMP 36kW Electric Tankless Water Heater suits homes with robust electrical systems needing high-volume hot water. It fits buyers who prioritize flow rate and smart control over energy efficiency in cold weather.
Westinghouse 24kW WiFi Tankless Water Heater
Best for: Smart home users with 100A electrical capacity
- 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 24kW electric unit delivers up to 5.55 GPM of instant hot water at 240V. It features smart WiFi control for remote temperature adjustments via app or voice commands. The compact design measures 17.1 x 13 x 4.3 inches, allowing flush wall mounting. It requires a 100A breaker and three 40A double-pole breakers with 8 AWG wire. This model suits whole-house needs in apartments or homes seeking smart connectivity.
Pros
- Provides up to 5.55 GPM flow rate for simultaneous use
- Includes smart WiFi control with Alexa and Google Home compatibility
- Compact dimensions of 17.1 x 13 x 4.3 inches save space
- Low starting flow rate of 0.79 GPM ensures instant heat
Cons
- Lower 24kW wattage compared to 27kW and 36kW alternatives
- Requires significant electrical infrastructure including 100A breaker
- Gray finish may not match all decor styles
Good fit if
- You need smart WiFi control for remote temperature adjustments
- You have the electrical capacity for a 100A breaker setup
- You want a compact unit that mounts flush against the wall
Skip if
- You require higher flow rates than 5.55 GPM provides
- You cannot install the necessary 240V electrical wiring
- You prefer a higher wattage unit for colder climates
Verdict: Westinghouse 24kW WiFi Tankless Water Heater offers smart connectivity and compact sizing for homes with adequate electrical capacity. It fits users who prioritize remote control and space-saving design over maximum power output.
NOVIEEX 27kW 7.4 GPM Electric Tankless Water Heater
Best for: large homes with 240V electrical capacity
- Fuel Type
- Electric
- Flow Rate
- 7.4 GPM
- Wattage
- 27kW
- Installation Location
- Indoor
- Voltage
- 240V
- Temperature Control
- 77°F to 140°F, 1°F increments
View on Amazon: NOVIEEX 27kW 7.4 GPM Electric Tankless Water Heater Affiliate link
The NOVIEEX 27kW unit delivers up to 7.4 GPM at 240V, making it a strong alternative to the Wintemp 27kW. It features a slim 15.86-inch height and precise 1°F temperature increments. This model suits larger homes needing simultaneous multi-point flow. It offers 99.8% efficiency and an 8-layer safety system. The design saves space compared to traditional storage tanks.
Pros
- 7.4 GPM max flow rate for whole-house use
- 27kW power with 99.8% energy conversion efficiency
- Precise 1°F temperature increments on LED display
- Slim 14.13-inch width saves wall space
Cons
- Requires 3 separate 40A double-pole circuit breakers
- Needs 3 sets of 8 AWG wires with ground
- Only includes a 1-year warranty
Good fit if
- You have a 240V electrical panel with sufficient capacity
- You need hot water for 3 to 4 simultaneous fixtures
- You want precise temperature control in 1°F increments
Skip if
- You cannot install three dedicated 40A circuits
- You only need hot water for a single sink
- You prefer a longer warranty than one year
Verdict: NOVIEEX 27kW Electric Tankless Heater fits large households with robust electrical infrastructure. It provides high flow and precise control for multi-point bathroom use. Buyers with limited electrical space or budget for wiring upgrades should look elsewhere.
NOVIEEX 27kW Electric Tankless Heater
Best for: Whole-house hot water with high flow needs
- Fuel Type
- Electric
- Flow Rate
- 7.4 GPM
- Wattage
- 27kW
- Voltage
- 240V
- Temperature Control
- 77°F to 140°F, 1°F increments
- Certification
- IPX4
View on Amazon: NOVIEEX 27kW Electric Tankless Heater Affiliate link
The NOVIEEX 27kW unit delivers up to 7.4 GPM at 240V, making it a strong whole-house option. Its 99.8% efficiency and LED display with 1°F increments offer precise control. You get constant temperature locking to prevent spikes. This heavy-duty heater suits larger homes needing high flow, though it requires significant electrical infrastructure.
Pros
- 7.4 GPM flow rate for multi-point use
- 99.8% energy conversion efficiency
- LED display with 1°F temperature increments
- 8-layer safety system including IPX4 rating
Cons
- Requires three 40A double-pole circuit breakers
- Needs 3 sets of 8 AWG wires
- 1-year warranty is shorter than typical competitors
Good fit if
- You need high flow for 3-4 simultaneous fixtures
- You have the required 240V electrical capacity
- You want precise temperature control in 1°F steps
Skip if
- You only have standard 20A or 30A circuits
- You want WiFi connectivity for remote control
- You prefer a longer warranty period
Verdict: NOVIEEX 27kW Electric Tankless Water Heater fits homes with robust electrical setups that demand high flow rates. It delivers precise temperature control and high efficiency, provided you can install the necessary heavy-duty wiring and breakers.
Camplux 27 kW Digital Electric Tankless Water Heater
Best for: Digital display users
- Fuel Type
- Electric
- Wattage
- 27kW
- Voltage
- 240V
- Temperature Control
- 80°F to 140°F
- Certification
- ETL
- Dimensions
- 17.12 x 13.12 x 3.12 inches
View on Amazon: Camplux 27 kW Digital Electric Tankless Water Heater Affiliate link
The Camplux TEW27 delivers 27kW of power at 240V for whole-house hot water. It features a digital display for precise temperature control between 80°F and 140°F. Self-modulating technology adjusts output for efficiency. The unit includes ETL certification for safety. Its compact design fits tight spaces. You get stable water temperatures with built-in protections. This model suits those needing reliable instant heat without waiting.
Pros
- 27kW electric output for fast heating
- Digital display shows current water temperature
- ETL certified for safety standards
- Self-modulating technology for efficiency
- Compact dimensions of 17.1 x 13.1 x 3.12 inches
Cons
- No WiFi connectivity for remote control
- Maximum temperature limited to 140°F
- Requires 3 x 8AWG wiring
Good fit if
- You want a digital display for easy temperature reading
- You need ETL certification for safety assurance
- You have the electrical capacity for 27kW load
Skip if
- You require WiFi app control
- You need temperatures above 140°F
- You cannot install 8AWG wiring
Verdict: Camplux 27kW Electric Tankless Water Heater offers reliable instant heat with a clear digital display. It fits buyers who prioritize visible temperature control and safety certification over smart features.
Electrolux 18kW Electric Tankless Water Heater
Best for: Moderate flow needs with smart control
- Fuel Type
- Electric
- Flow Rate
- 4.2 GPM
- Wattage
- 18 kW
- Voltage
- 240V
- Temperature Control
- 80°F – 140°F, 1℉
- Dimensions
- 18.7 x 14.1 x 14.1 inches
View on Amazon: Electrolux 18kW Electric Tankless Water Heater Affiliate link
This Electrolux unit delivers 18 kW of heating power at 240V, providing up to 4.2 GPM of hot water. It measures 18.7 x 14.1 x 14.1 inches and weighs 15.4 pounds. You get WiFi control via an app and Alexa compatibility. The temperature range spans 80°F to 140°F. It suits homes with moderate water usage, such as a bathroom and kitchen running simultaneously.
Pros
- 18 kW heating capacity for steady hot water
- WiFi app and Alexa voice control
- Adjustable temperature from 80°F to 140°F
- Compact dimensions at 18.7 inches tall
Cons
- Lower 18 kW output compared to 24-27 kW competitors
- Requires two 40A breakers and 150 amp panel
- Shorter 1-year warranty period
Good fit if
- You have a 150 amp electrical panel
- You want smart app control
- You need hot water for 2-3 fixtures
Skip if
- You need more than 4.2 GPM flow
- Your panel is under 150 amps
- You require whole-house simultaneous use
Verdict: Electrolux 18kW Electric Tankless Heater fits users with strong electrical capacity who prioritize smart features over maximum flow rate. It handles moderate demand well but cannot match the output of higher wattage models.
Specifications side by side
| Spec | WINTEMP 27kW Electric Tankless Water Heater | WINTEMP 36kW Electric Tankless Water Heater | Westinghouse 24kW WiFi Tankless Water Heater | NOVIEEX 27kW 7.4 GPM Electric Tankless Water Heater | NOVIEEX 27kW Electric Tankless Heater | Camplux 27 kW Digital Electric Tankless Water Heater | Electrolux 18kW Electric Tankless Water Heater |
|---|---|---|---|---|---|---|---|
| Fuel Type | Electric | Electric | Electric | Electric | Electric | Electric | Electric |
| Flow Rate | 6.5 GPM | Up to 8.7 GPM | Max 5.55 GPM | 7.4 GPM | 7.4 GPM | not stated | 4.2 GPM |
| Wattage | 27kW | 36 kW | 24 kW | 27kW | 27kW | 27kW | 18 kW |
| Installation Location | not stated | not stated | not stated | Indoor | not stated | not stated | not stated |
| Voltage | 240V | 240V | 240V | 240V | 240V | 240V | 240V |
| Temperature Control | 86°F to 140°F | not stated | not stated | 77°F to 140°F, 1°F increments | 77°F to 140°F, 1°F increments | 80°F to 140°F | 80°F – 140°F, 1℉ |
| Certification | ETL | ETL | ETL | not stated | IPX4 | ETL | not stated |
| Dimensions | 15.9" H × 13" W × 4.2" D | 21.5 x 13.7 x 5.2 inches | 17" x 13" x 4.3" | 15.86" H x 14.13" W x 3.18" D | 14.13 x 15.86 x 3.18 inches | 17.12 x 13.12 x 3.12 inches | 18.7 x 14.1 x 14.1 inches |
| Use | Whole House | Whole House | Whole House | Whole House | not stated | Whole House | Whole House |
| Features | WiFi | WiFi | WiFi | not stated | Digital Display | Digital Display | WiFi |
| Weight | 21.5 pounds | 36.1 pounds | 17 pounds | not stated | not stated | 20.3 pounds | 15.4 pounds |
| Size | 27 (kW) | 36kW | L-24 | not stated | not stated | 240V/27kW | E-18 kW |
| Color | Gray | Gray | Gray 24 | Silver | Silver | White | Pearl White |
| Model | WM27V | WN36 | WET-24K-G | DS-18 | DS-18 | TEW27 | 18kW |
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Frequently asked questions
Which tankless water heater is best for high-flow multi-bathroom homes?
The WINTEMP 27kW Electric Tankless Water Heater is the top pick for homes needing high flow across multiple bathrooms. It delivers 27 kW of power on a 240V circuit. This model includes WiFi connectivity for precise app control. It is certified for safety and reliability, making it a strong choice for robust electrical systems.
What is the highest wattage option available in this list?
The WINTEMP 36kW Electric Tankless Water Heater offers the highest wattage at 36 kW. It is designed for high-flow needs in mild climates. This unit requires a robust electrical system to handle the increased power demand. It features WiFi control and measures 21.1 inches tall, making it larger than the 27kW base model.
Is there a compact electric tankless heater with smart features?
Yes, the Westinghouse 24kW WiFi Tankless Water Heater is a compact option with smart connectivity. It weighs only 17 pounds and measures 17.1 inches tall. This model is ideal for users with 100A electrical capacity who prioritize space-saving design. It offers remote control capabilities without the maximum power output of larger units.
Which model is recommended for large homes with strong electrical infrastructure?
The NOVIEEX 27kW 7.4 GPM Electric Tankless Water Heater is best for large households. It provides high flow rates suitable for multi-point bathroom use. This unit requires 240V electrical capacity and is intended for indoor installation. It offers precise control but may not suit buyers with limited electrical space or budget for wiring upgrades.
Are there options with digital displays instead of WiFi?
Yes, the Camplux 27kW Digital Electric Tankless Water Heater features a clear digital display. It offers reliable instant heat with visible temperature control. This model is designed for whole-house use on a 240V circuit. It prioritizes straightforward operation and safety certification over smart app connectivity, making it a practical choice for many users.
What is a good choice for moderate flow needs with smart control?
The Electrolux 18kW Electric Tankless Water Heater is suitable for moderate flow demands. It includes WiFi features for smart control while using less power than higher-wattage models. This unit weighs 15.4 pounds and measures 18.7 inches tall. It fits users with strong electrical capacity who prioritize convenience over maximum hot water output.
Which heater is best for buyers prioritizing energy efficiency in cold weather?
None of the listed electric tankless heaters are specifically optimized for cold weather energy efficiency. The WINTEMP 36kW model is noted as fitting buyers who prioritize flow rate and smart control over efficiency in cold conditions. Electric units generally require significant electrical infrastructure to maintain performance in colder climates with lower inlet water temperatures.
How do the dimensions of these tankless heaters compare?
Dimensions vary significantly across these models. The WINTEMP 27kW measures 13 by 15.9 inches, while the Westinghouse 24kW is similarly compact at 13 by 17.1 inches. The WINTEMP 36kW is larger at 13.7 by 21.1 inches. The Electrolux 18kW measures 14.1 by 18.7 inches. You should check your installation space against these specific measurements.