If you’re searching for a heat pump water heater with app control, you’re likely looking for a combination of energy efficiency and modern smart features. The 18kW Electric Tankless Water Heater 240V WiFi Certified stands out for its compact design and reliable Wi-Fi connectivity. Meanwhile, the Senville Hybrid Heat Pump Electric Water Heater offers a generous 50-gallon capacity with ENERGY STAR certification, ideal for larger households. One of the main challenges in this category is balancing upfront costs with long-term savings, as premium models tend to offer more advanced controls but at a higher price. Continue reading for a detailed breakdown of each option and which might be best for your needs.
Get backup power and energy gear delivered free — and shop member deals
- Fast, free delivery on millions of items
- Access to Prime Big Deal Days deals on October 6–7
- Prime Video, Amazon Music and more included
Key Takeaways
- The best models combine high energy efficiency with user-friendly app interfaces for remote control and monitoring.
- Tankless options tend to be more compact but may require higher upfront investment compared to traditional tank models.
- Wi-Fi connectivity quality and app functionality vary significantly, impacting ease of use and integration into smart home systems.
- Larger capacity models are better suited for bigger households but come with increased costs and installation complexity.
- Price often correlates with advanced features; premium models offer more customization and energy savings but are more expensive.
| 18kW Electric Tankless Water Heater 240V WiFi Certified |  | Best Compact Tankless with WiFi Control | Power Source: AC | Wattage: 18,000 watts | Voltage: 240 volts | VIEW ON AMAZON | See Our Full Breakdown |
| Senville Hybrid Heat Pump Electric Water Heater, ENERGY STAR, 50 Gallon |  | Best Large Capacity Energy Saver | Capacity: 50 gallons | Efficiency Rating: UEF 3.75 | First Hour Rating: 69 gallons | VIEW ON AMAZON | See Our Full Breakdown |
| Westinghouse Electric Tankless Water Heater 18kW, 240V, Wi-Fi, Whole House Use |  | Best Whole House Tankless with Voice Control | Power: 18kW | Voltage: 240V | Flow Rate: 2.6–4.2 GPM | VIEW ON AMAZON | See Our Full Breakdown |
| Midea 18KW Electric Tankless Water Heater with Touch & Wi-Fi Control |  | Best Smart Touch & Wi-Fi Control for Small Spaces | Power: 18kW | Voltage: 240V | Heating Capacity: Instant & Endless Hot Water at 130℉ or higher | VIEW ON AMAZON | See Our Full Breakdown |
| GRAT 75,000 BTU Full Inverter Pool Heat Pump with WiFi App Control |  | Best Outdoor Pool Heat Pump with Smart Control | BTU: 75,000 | Pool Size: Up to 21,000 gallons | Heating Range: 46°F–104°F | VIEW ON AMAZON | See Our Full Breakdown |
| 140,000 Btu Electric Pool Heat Pump for Inground Pools 220V |  | Best for Large Inground Pools with Remote Convenience | BTU: 140,000 | Voltage: 220V | Pool Capacity: up to 42,000 gallons | VIEW ON AMAZON | See Our Full Breakdown |
| heat pump water heater with app control | Voltage |
|---|---|
| 18kW Electric Tankless Water H | 240 volts |
| Senville Hybrid Heat Pump Elec | — |
| Westinghouse Electric Tankless | 240V |
| Midea 18KW Electric Tankless W | 240V |
| GRAT 75,000 BTU Full Inverter | — |
| 140,000 Btu Electric Pool Heat | 220V |
More Details on Our Top Picks
18kW Electric Tankless Water Heater 240V WiFi Certified
This 18kW electric tankless unit excels in delivering continuous hot water without delays, thanks to its high efficiency and instant response. Its space-saving wall-mounted design makes it ideal for homes with limited space, and WiFi control enables remote temperature adjustments. Compared to the Westinghouse model, it offers a simpler installation process and fewer electrical requirements, though both provide app connectivity. The primary tradeoff involves its flow rate of 4.3 gpm, which might be insufficient for larger households or simultaneous multiple fixtures in peak demand. This model suits smaller homes or apartments where space is at a premium but reliable hot water is needed.
Pros:- Provides continuous hot water without preheating delays
- Energy-efficient with up to 99% savings
- Space-saving wall-mounted design
- Remote WiFi control for easy temperature adjustments
Cons:- Requires professional installation and electrical setup
- Limited flow rate may not support multiple fixtures simultaneously
Best for: Small households or apartments needing compact, WiFi-controlled instant hot water
Not ideal for: Large families or homes with multiple bathrooms, as flow rate may be limiting
- Power Source:AC
- Wattage:18,000 watts
- Voltage:240 volts
- Flow Rate:4.3 gpm
- Maximum Temperature:140 °F
- Special Features:LED Display, Overheat Protection, Temperature Lock
Our verdict“This unit is best for small households seeking reliable, space-efficient hot water with app control, but not ideal for high demand situations.”
Senville Hybrid Heat Pump Electric Water Heater, ENERGY STAR, 50 Gallon
The Senville 50-gallon hybrid heat pump stands out for drastically reducing electricity bills—up to 70%—making it a top choice for medium to large households. Its advanced heat pump technology captures ambient heat, providing a highly efficient hot water supply without sacrificing capacity. Unlike the smaller electric tankless options, it offers a generous 50-gallon tank, suitable for families with higher hot water demands. Installation requires ample space and planning, especially with its larger dimensions, but the long-term savings and durability justify that upfront investment. Performance can decline in colder climates, which is a common challenge for heat pump models like this. This water heater is well-suited for homeowners prioritizing energy efficiency over compactness.
Pros:- Reduces electricity consumption by up to 70%
- Large 50-gallon capacity supports large households
- Certified for safety, efficiency, and performance
- Long-term savings on utility bills
Cons:- Requires sufficient space for installation
- Higher upfront cost compared to standard electric water heaters
- Performance depends on ambient air temperature
Best for: Families or households seeking high-capacity, energy-efficient water heating
Not ideal for: Small apartments or homes with limited space where a large tank isn’t feasible
- Capacity:50 gallons
- Efficiency Rating:UEF 3.75
- First Hour Rating:69 gallons
- Item Dimensions:21.4″ W x 66.5″ H
- Item Weight:218 pounds
Our verdict“This model is perfect for large households focused on lowering energy costs but requires ample space and upfront investment.”
Westinghouse Electric Tankless Water Heater 18kW, 240V, Wi-Fi, Whole House Use
The Westinghouse 18kW tankless heater combines instant hot water with Wi-Fi app control, compatible with Alexa and Google Home, making it a flexible solution for small to medium homes. Its compact size fits well in tight spaces, and its safety features add peace of mind. Compared to the 18kW electric tankless model, it offers similar flow rates but emphasizes smart connectivity and voice assistant compatibility. The flow rate varies with inlet temperature, which can be a limitation during cold seasons or with high simultaneous demand. Professional installation is recommended due to high electrical requirements. This heater suits those wanting whole-house hot water with advanced remote control features.
Pros:- Instant hot water with fast heating
- Wi-Fi app control compatible with Alexa and Google Home
- Compact size fits in small spaces
- ETL-certified with safety features
Cons:- Requires professional installation and specific electrical setup (75A, 240V)
- Flow rate varies with inlet temperature
Best for: Homeowners who want Wi-Fi-enabled instant hot water with voice assistant integration
Not ideal for: Large households or homes demanding high simultaneous flow rates, as flow may fluctuate
- Power:18kW
- Voltage:240V
- Flow Rate:2.6–4.2 GPM
- Temperature Range:86–140°F
- Dimensions:18.7 x 3.94 x 14.17 inches
Our verdict“Ideal for homeowners wanting Wi-Fi and voice control for whole-house hot water, but flow limitations may affect larger households.”
Midea 18KW Electric Tankless Water Heater with Touch & Wi-Fi Control
The Midea 18KW tankless heater offers reliable, endless hot water with a user-friendly digital LED display and smart app control. Its child mode and automatic power modulation contribute to energy savings, making it a practical choice for small apartments or condos. Compared with the Westinghouse model, Midea emphasizes ease of use with its touch controls and a more straightforward installation process, though it shares similar power and flow rate capabilities. Wi-Fi connectivity requires a stable home network, which can sometimes pose challenges. The model’s compact size and smart features make it a strong candidate for those seeking convenience and control in limited spaces.
Pros:- Provides instant, continuous hot water
- Smart app control for remote adjustments
- Energy-saving self-modulating technology
- Compact design ideal for small spaces
Cons:- Requires 240V power supply and professional installation
- Wi-Fi connectivity depends on home network stability
Best for: Urban dwellers in small apartments needing easy-to-use, Wi-Fi-enabled hot water control
Not ideal for: Large households or homes with high simultaneous hot water demands, due to flow limitations
- Power:18kW
- Voltage:240V
- Heating Capacity:Instant & Endless Hot Water at 130℉ or higher
- Display:LED
- Control:Touch and Wi-Fi
Our verdict“A smart, space-efficient choice for apartment residents looking for easy remote control, but not suited for high-demand households.”
GRAT 75,000 BTU Full Inverter Pool Heat Pump with WiFi App Control
This inverter pool heat pump is designed for large pools up to 21,000 gallons, offering fast, energy-efficient heating with quiet operation. Its titanium heat exchanger handles saltwater and freshwater pools equally well, making it versatile for different pool types. The WiFi and Bluetooth app control feature enables remote monitoring and adjustment, providing convenience for pool owners. Compared to the household units, this model offers a much higher BTU output, suitable for large outdoor pools, but it demands regular maintenance and proper cover management for optimal efficiency. Its durability and corrosion resistance make it a reliable outdoor option, especially for saltwater pools.
Pros:- Energy-efficient inverter technology reduces power consumption
- Remote WiFi & Bluetooth app control
- Corrosion-resistant titanium heat exchanger
- Quiet operation at approximately 50 dB
Cons:- Bluetooth pairing needed for initial setup
- Requires WiFi for remote control
- Pool cover recommended for faster heating
Best for: Pool owners with large above-ground or inground pools seeking remote control and efficient heating
Not ideal for: Small pools or indoor hot tubs, where a smaller or specialized heater is more appropriate
- BTU:75,000
- Pool Size:Up to 21,000 gallons
- Heating Range:46°F–104°F
- Noise Level:50 dB
- Housing Material:UV-resistant ABS
Our verdict“This pool heat pump is ideal for large outdoor pools needing efficient, remotely controlled heating, but requires regular maintenance and proper setup.”
140,000 Btu Electric Pool Heat Pump for Inground Pools 220V
This electric pool heat pump stands out for its impressive 140,000 BTU capacity, making it ideal for inground pools up to 42,000 gallons. Compared with the GRAT 75,000 BTU model, this unit offers more power and faster heating, but it also consumes more energy. Its inverter technology enhances efficiency, helping to reduce operational costs over time, and the WiFi app control simplifies management from anywhere. The quiet operation at 47dB makes it suitable for residential settings where noise is a concern. However, normal condensation leakage means some maintenance is necessary, and it performs best when paired with a pool cover to maximize efficiency. Setup is straightforward but requires some basic plumbing and electrical work, making it less suited for DIY beginners. This model is perfect for pool owners seeking powerful, remotely accessible heating for large, saltwater, or freshwater pools.
Pros:- High heating capacity suitable for large pools
- Energy-efficient inverter technology reduces running costs
- WiFi app control for remote operation
- Quiet at 47dB, minimizing disturbance
Cons:- Normal condensation leakage requires maintenance over time
- Optimal performance depends on using a pool cover
- Installation involves electrical and plumbing setup, not plug-and-play
Best for: Owners of large inground pools who want efficient, app-controlled heating without much noise.
Not ideal for: Homeowners with small pools or above-ground setups, as the capacity and installation complexity are overkill.
- BTU:140,000
- Voltage:220V
- Pool Capacity:up to 42,000 gallons
- Noise Level:47dB
- Connectors:1.5-inch
- Technology:Inverter
Our verdict“This heat pump is best for large inground pool owners who prioritize remote control and quiet operation, accepting some installation effort.”
How We Picked
The selection process focused on key factors that matter most for buyers seeking a heat pump water heater with app control. We evaluated each product’s energy efficiency, smart features, build quality, ease of installation, and user interface. Reliability and brand reputation also played a significant role, along with value for money. The ranking reflects a balance between performance, usability, and price, prioritizing models that offer robust app integration and long-term savings. Our goal was to identify options that cater to different needs—whether for budget-conscious buyers, tech enthusiasts, or larger households—while maintaining high standards of quality and functionality.Factors to Consider When Choosing Heat Pump Water Heater With App Control
Selecting the right heat pump water heater with app control involves understanding several critical factors. Beyond just smart features, you should consider capacity, efficiency, ease of installation, and compatibility with your existing systems. Recognizing common pitfalls—such as overestimating your household’s hot water needs or choosing models with limited app functionality—can save you money and frustration. Here are the key aspects to keep in mind when making your choice.Capacity and Size
Capacity determines whether a heat pump water heater can meet your household’s hot water demands. Tankless models are space-efficient but may require higher power inputs, while tank models with larger gallons are better for bigger households. Measure your peak usage and consider future needs, as selecting a unit with inadequate capacity can lead to shortages. Conversely, overestimating can mean unnecessary expense and energy consumption.
Energy Efficiency and Operating Costs
Energy efficiency directly impacts your monthly utility bills and environmental footprint. Look for models with high Uniform Energy Factor (UEF) ratings and ENERGY STAR certification. These units typically cost more upfront but can save money long term through reduced energy consumption. Keep in mind that some smart features, like adaptive heating schedules, further enhance efficiency but may add to the initial price.
Smart App Features and Connectivity
Not all app controls are created equal. Evaluate the reliability and usability of the app—look for intuitive interfaces, remote monitoring, and control options such as temperature adjustments and diagnostics. Compatibility with existing smart home ecosystems can add convenience, but be wary of models with limited or buggy app functionality. Reading user reviews on app stability can help avoid frustration later.
Installation and Maintenance
Proper installation is crucial for optimal performance and longevity. Some units require professional setup, especially larger capacity models, which might need additional electrical or plumbing work. Maintenance features like filter access or self-diagnostic tools can reduce ongoing hassle. Budgeting for professional installation ensures your system operates safely and efficiently from day one.
Price and Long-Term Value
While cheaper models may seem attractive initially, they often lack advanced features or have lower energy efficiency, leading to higher operating costs. Premium units with better app controls and higher efficiencies can pay off over time through savings. Consider your budget and weigh upfront costs against potential long-term benefits—sometimes spending more initially results in greater savings and convenience.
Frequently Asked Questions
Can I control my heat pump water heater with an app if I don’t have a smart home system?
Yes, most heat pump water heaters with app control are designed to connect directly to your Wi-Fi network, allowing you to manage settings via their dedicated apps without needing a full smart home system. This makes remote control and diagnostics accessible even if you don’t have other smart devices installed. However, ensure that the unit’s app is compatible with your smartphone and that your Wi-Fi network is reliable for consistent operation.
What size heat pump water heater should I choose for my household?
The ideal size depends on your household’s hot water demand. For small households or singles, a tankless unit with lower capacity may suffice, while larger families typically benefit from bigger tanks or higher-capacity tankless models. Overestimating capacity leads to higher costs and energy use, but undersizing can cause shortages. Calculate your peak usage to select a unit that balances performance with efficiency.
Are app-controlled heat pump water heaters secure from hacking?
Most reputable brands implement security protocols to protect your device from hacking, including encrypted data transmission and secure login features. Regularly updating the firmware and app can patch vulnerabilities and improve security. Choosing well-known brands with a good track record reduces risks, but never ignore setting strong passwords and enabling two-factor authentication if available.
Can I upgrade my existing water heater to a smart heat pump model?
Upgrading to a smart heat pump water heater is possible, but compatibility depends on your current plumbing and electrical setup. Many models include installation requirements that might necessitate professional assistance. Additionally, some units can be integrated into existing smart home systems, while others operate independently. Consulting a professional can help determine whether an upgrade makes sense for your home’s infrastructure.
How much can I expect to save on energy bills with a smart heat pump water heater?
Smart heat pump water heaters are generally more energy-efficient than traditional models, often reducing energy consumption by 30-60%. The actual savings depend on your usage patterns, local electricity rates, and how effectively you utilize smart controls like scheduling and remote monitoring. Although the initial investment is higher, these units often pay for themselves through reduced utility bills over a few years, especially with smart features that optimize performance.
Conclusion
For most homeowners, the Westinghouse Electric Tankless Water Heater offers a balanced mix of reliability, smart app features, and good value, making it the best overall choice. Budget-conscious buyers aiming for long-term savings should consider the Senville Hybrid Heat Pump, which provides substantial energy efficiency at a reasonable price. Those seeking a premium experience will appreciate the Midea 18KW Electric Tankless Water Heater for its advanced controls and build quality. Beginners or smaller households will find the 18kW Electric Tankless Water Heater 240V WiFi Certified straightforward and easy to install, while larger households or those with specific needs might prefer models with higher capacity or additional features. Your ideal pick depends on your household size, budget, and desired level of smart integration.Fall Picks
fall essentials
As an affiliate, we earn on qualifying purchases.
