critical cactusAquanta Smart Water Heater Timer is our pick for the Best Hot Water Heater Timer because it provides intelligent, schedule-based control that learns your usage patterns to optimize energy efficiency without manual intervention.
For those who prefer a traditional approach, the Intermatic WH21 Water Heater Timer offers reliable mechanical scheduling, while the CAI-Intermatic EH40 Water Heater Timer provides precise seven-day programming for more complex household needs.
Choosing the right timer depends on your preference for smart home integration versus simple, set-it-and-forget-it mechanical reliability. Smart models allow for remote adjustments and usage tracking, whereas mechanical units are often favored for their durability and lack of dependence on Wi-Fi connectivity.
Once you have optimized your schedule, you may also want to explore the Best Hot Water Heater Thermostat to further refine your system's efficiency.
10 Best Hot Water Heater Timer in 2026 Reviews
Quick Comparison
| Product | Best For | Key Strength | Score |
|---|---|---|---|
| Aquanta Smart Water Heater Timer | Best Overall | Automated scheduling that learns household patterns to optimize energy use. | 4.9 |
| Intermatic WH21 Water Heater Timer | Reliable Mechanical Scheduling | High capacity supporting up to 6,250 watts. | 4.7 |
| Intermatic EH10 Water Heater Timer | Precision Weekly Programming | 42 ON/OFF events per week for highly customizable scheduling | 4.3 |
| DEWENWILS WiFi Pool and Heater Timer | Best Wireless Smart Integration | 40A 3HP motor handles high-voltage 240V loads reliably. | 4.4 |
| SURAIELEC Digital Pool and Heater Timer | High-Capacity Digital Control | AC contactor system for higher current capacity and durability | 4.4 |
| DEWENWILS Mechanical Timer Switch | Durable Weatherproof Design | High power capacity supporting 40A 208-277V loads and 5HP motors. | 4.7 |
| FRIGESWIFT T104 Mechanical Timer | Heavy-Duty Commercial Grade | 40A high-capacity DPST switch for heavy-duty power management. | 4.8 |
| Intermatic WH40 Mechanical Timer | Simple Manual Operation | Simple manual operation via an intuitive mechanical dial. | 4.4 |
| Suraielec Pool Timer | Easy-to-Read Digital Display | 40 AMP capacity supports high-load appliances like water heaters. | 4.4 |
| CAI-Intermatic EH40 Water Heater Timer | Accurate Seven-Day Scheduling | 42 ON/OFF events per week for highly flexible scheduling. | 4.9 |
How We Chose
Selecting the right timer for your water heater involves evaluating how these devices integrate with your home's electrical system and daily routine. We analyze each unit based on its programming precision, load capacity, and build quality to ensure that your chosen timer effectively manages energy consumption while maintaining consistent hot water availability.
- Programming flexibility and scheduling capacity
- Compatibility with existing electric water heater voltages
- Ease of installation and wiring requirements
- Durability of the enclosure for indoor or outdoor environments
- Smart features versus mechanical simplicity
1 Aquanta Smart Water Heater Timer — Best for Remote Smart Control
Managing home energy consumption often centers on the water heater, which frequently ranks as the second-largest contributor to utility bills. The Aquanta Smart Water Heater Timer addresses this by providing intelligent, schedule-based control that eliminates the need for manual adjustments. By learning your household habits, it ensures hot water is available when needed while minimizing heating cycles during periods of inactivity.
This device integrates advanced smart technology that allows for remote management via your mobile device. Users can monitor hot water availability metering and track daily, weekly, or monthly usage patterns directly through the interface. The system is designed for storage-style water heaters and offers UL safety certification, providing a standardized approach to modernizing existing electric tank setups without requiring complex plumbing modifications.
Beyond simple scheduling, the unit offers smart home integrations with platforms like Alexa and IFTTT, allowing it to function as a connected component of a broader home automation ecosystem. It also supports instant alerts for maintenance and potential leaks, provided the optional leak sensor is utilized. These features aim to provide the benefits of a modern smart water heater at a fraction of the cost of a full unit replacement.
Installation is straightforward and designed to be completed in minutes. Because it is specifically engineered for electric water heaters, it focuses on optimizing the electrical load of the tank. By utilizing various control modes, the system balances comfort with energy efficiency, effectively turning a standard storage tank into a data-driven, energy-conscious appliance.
Best for: Homeowners with electric storage-style water heaters looking to automate heating schedules and monitor energy usage remotely.
Skip if: Users with gas-powered water heaters or tankless systems, as this device is specifically designed for electric storage tanks.
- Automated scheduling that learns household patterns to optimize energy use.
- Remote monitoring of tank temperature and hot water availability.
- Easy installation process that requires no plumbing modifications.
- Smart home compatibility with Alexa and IFTTT for voice and automated control.
- Limited to electric storage-style water heaters only.
- Leak detection functionality requires the purchase of an optional sensor.
2 Intermatic WH21 Water Heater Timer — Reliable Mechanical Scheduling
Managing energy consumption for water heating often requires precise control over when the system operates. The Intermatic WH21 Water Heater Timer provides a dedicated solution for automating these cycles, allowing users to schedule hot water availability based on specific household needs. By ensuring the heater runs during high-use periods and remains off during low-use times, this device helps maintain a consistent schedule for water heating.
Designed for versatility in electrical configurations, the Intermatic WH21 Water Heater Timer is a single pole/single throw unit. It is engineered to handle substantial electrical loads, boasting a capacity of 25 amps and supporting up to 6,250 watts at 250 volts. These specifications make it a robust choice for managing standard electric water heater operations within a 60 Hz electrical environment.
The unit features a straightforward, functional design that prioritizes ease of use for routine scheduling. With physical dimensions of 8 by 8 by 8 inches and a weight of 2 pounds, it is compact enough for standard installation requirements. The Intermatic WH21 Water Heater Timer comes with a 1-year warranty, providing a baseline of support for its mechanical scheduling components.
When integrating this timer, users should verify their electrical system compatibility, specifically ensuring the voltage and amperage requirements align with the 208-277V rating. Because this is a mechanical timing device, it is best suited for those who prefer a reliable, set-it-and-forget-it approach to managing their water heater's daily cycle without the complexity of digital programming.
Best for: Homeowners looking for a reliable, mechanical way to automate electric water heater cycles to align with daily usage patterns.
Skip if: Users who require smart-home connectivity, digital precision, or remote app-based control for their water heating system.
- High capacity supporting up to 6,250 watts.
- Automated scheduling to reduce energy usage during low-demand periods.
- Durable mechanical design for consistent, long-term operation.
- Simple installation for standard 250-volt electrical setups.
- Mechanical-only interface lacks modern digital or smart-home features.
- Fixed scheduling requires manual adjustment if usage patterns change frequently.
3 Intermatic EH10 Water Heater Timer — Precision Weekly Programming
Managing energy consumption in a home often starts with the water heater, which is frequently one of the largest electrical loads. The Intermatic EH10 Water Heater Timer provides a targeted solution by allowing homeowners to automate heating cycles, ensuring hot water is available when needed while reducing usage during off-peak hours.
This unit features 7-day scheduling capabilities, offering the flexibility to set different routines for weekdays and weekends. With the capacity for up to 42 ON/OFF events per week, users can achieve granular control over their water heating system. The device is engineered for to-the-minute programming accuracy, ensuring that heating cycles adhere strictly to the established schedule.
Usability is enhanced by the inclusion of an external override switch, which permits immediate manual adjustments without disrupting the underlying program. This is particularly useful for those occasions when extra hot water is required outside of the standard schedule. Additionally, the integrated LED load indicator provides a clear visual status of the heater, allowing for quick monitoring of the system's current state.
Designed for durability and ease of installation, the timer measures 8 inches in height, width, and depth, weighing approximately 2.3 pounds. It is backed by a 1-year warranty covering unit replacement, providing a clear expectation for support. By shifting heating demands to off-peak times, this timer serves as a practical tool for those looking to manage their household energy usage more effectively.
Best for: Homeowners looking to reduce energy costs by automating their electric water heater schedule on a weekly basis.
Skip if: Users who require a smart, Wi-Fi-enabled device with remote mobile app control, as this model relies on manual, on-unit programming.
- 42 ON/OFF events per week for highly customizable scheduling
- External override switch for convenient manual control
- LED load indicator for easy visual monitoring
- 7-day programming flexibility
- Manual programming interface lacks modern Wi-Fi or app-based connectivity
4 DEWENWILS WiFi Pool and Heater Timer — Best Wireless Smart Integration
Managing energy consumption for high-draw appliances like water heaters is simplified with the DEWENWILS WiFi Pool and Heater Timer, which features a 40A 3HP motor capable of handling demanding 240V single-load setups. This device provides a robust solution for automating heating schedules, ensuring that your equipment operates only when needed to reduce unnecessary electricity costs.
The unit distinguishes itself through remote and voice control capabilities, integrating seamlessly with the DEWENWILS and Smart Life apps, as well as Alexa and Google Assistant. This connectivity allows users to adjust settings or toggle power from anywhere, provided there is a 2.4GHz Wi-Fi connection available. The system includes multiple scheduling modes, such as countdown, random, and astronomical timers, offering flexibility for various household automation needs.
Designed for practical installation, the DEWENWILS WiFi Pool and Heater Timer utilizes an upgraded wiring system that replaces complex jumper settings found in traditional boxes. An intuitive rotary dial interface assists in the setup process, making it accessible for those without specialized electrical expertise. The housing is constructed from flame-retardant PC material and carries an IP44 waterproof rating, ensuring reliable performance in outdoor environments ranging from -40°F to 140°F.
Beyond water heaters, this versatile controller is compatible with pool pumps, filters, spas, irrigation systems, and landscape lighting. The device is ETL certified, confirming it meets established safety standards for electrical equipment. By combining heavy-duty power handling with smart home integration, this timer serves as a comprehensive tool for managing garden and utility automation.
Best for: Homeowners seeking a heavy-duty, weather-resistant timer with smart home integration for high-voltage appliances like water heaters and pool pumps.
Skip if: Users who require 5GHz Wi-Fi network support or those who prefer a purely analog, non-connected timer system.
- 40A 3HP motor handles high-voltage 240V loads reliably.
- Remote and voice control via smartphone apps and smart assistants.
- IP44 waterproof rating and flame-retardant housing for outdoor durability.
- Simplified wiring and rotary dial interface for straightforward installation.
- 2.4GHz Wi-Fi only compatibility limits network integration options.
5 SURAIELEC Digital Pool and Heater Timer — High-Capacity Digital Control
Managing high-load electrical equipment requires a robust switching solution capable of handling frequent cycles without degradation. The SURAIELEC Digital Pool and Heater Timer distinguishes itself by utilizing an AC contactor system rather than a standard relay, which provides superior current capacity and increased resistance to voltage fluctuations.
This unit is engineered to support 40AMP 240V 3HP devices, making it a versatile choice for residential and commercial applications. It allows for the simultaneous control of heavy-duty equipment, including pool pumps, hot water heaters, and outdoor lighting systems, ensuring stable operation during high-load, start-stop conditions.
Usability is centered on its 7-day programmable timer, which accommodates up to 20 individual ON/OFF schedules. The system includes built-in support for daylight savings time adjustments and manual override capabilities, providing precise control over electrical cycles. Installation is streamlined through a 5-terminal wiring design that eliminates the need for jumper wires.
Designed for longevity in challenging environments, the housing is constructed from weather-resistant materials that protect internal components from rain, moisture, rust, and UV exposure. A lockable cover is integrated into the design to prevent unauthorized tampering, securing the settings for both indoor and outdoor installations.
Best for: Users needing a high-capacity, weather-resistant timer for heavy-duty 240V equipment like pool pumps and hot water heaters.
Skip if: Users who require a simple plug-in timer for standard 120V household appliances, as this unit is designed for permanent hardwired installations.
- AC contactor system for higher current capacity and durability
- Supports 40AMP 240V 3HP high-load devices
- Weather-resistant housing with a lockable cover for outdoor safety
- 5-terminal wiring design for straightforward installation
- Hardwired installation required, which may necessitate professional electrical assistance
6 DEWENWILS Mechanical Timer Switch — Durable Weatherproof Design
Managing high-power appliances like water heaters requires a robust solution capable of handling significant electrical loads. The DEWENWILS 24-Hour Mechanical Timer Switch provides a reliable way to automate your energy usage, featuring a heavy-duty design that supports 40A 208-277V loads and 5HP motors. This unit is specifically engineered to handle the demands of consistent daily cycling for water heaters, pool pumps, and spa systems.
Designed for both indoor and outdoor environments, this timer is housed in a rugged NEMA-3R metal enclosure with IP44 waterproof protection. It is built to withstand extreme temperature fluctuations ranging from -40℉ to 140℉, ensuring consistent operation in harsh weather conditions. The inclusion of a lockable cover adds a layer of security, shielding internal wiring from unauthorized access and environmental elements.
Installation is simplified through an improved internal layout that removes the need for complex jumper wires. The device features clear wiring guides based on load type, making it accessible for those setting up their own automation systems. Once configured, the mechanical dial supports two on/off programs per 24-hour cycle, which repeat automatically to maintain your preferred schedule without further intervention.
As an ETL-certified device, the DEWENWILS 24-Hour Mechanical Timer Switch offers a dependable, flame-retardant solution for various high-power applications. Whether you are looking to optimize the run time of a water heater or automate landscape lighting, this timer provides the necessary power capacity and durability to manage heavy electrical loads safely and efficiently.
Best for: Homeowners and facility managers needing a durable, weather-resistant timer to automate high-amperage appliances like water heaters or pool pumps.
Skip if: Users who require digital precision, multiple daily programs, or smart-home connectivity will find this mechanical, two-program dial too limited.
- High power capacity supporting 40A 208-277V loads and 5HP motors.
- Weatherproof NEMA-3R metal enclosure rated for extreme temperatures.
- Simplified wiring layout that eliminates the need for jumper wires.
- ETL certified for safety and reliable performance in demanding environments.
- Limited programming restricted to only two on/off cycles per 24-hour period.
- Mechanical dial interface lacks the precision and scheduling flexibility of digital timers.
7 FRIGESWIFT T104 Mechanical Timer — Heavy-Duty Commercial Grade
Managing high-demand electrical loads requires equipment built for industrial-grade endurance, and the FRIGESWIFT T104 Mechanical Timer delivers exactly that with its 40A high-capacity DPST switch. Designed to handle 208–240V AC power, this unit provides a robust solution for controlling water heaters, pool pumps, and commercial refrigeration defrost systems.
The FRIGESWIFT T104 Mechanical Timer features a precision 24-hour movement that supports up to 12 switching cycles per day, with a minimum interval of one hour. This mechanical reliability ensures consistent performance without the complexity of digital interfaces, making it a straightforward choice for environments where durability is the priority.
Installation and setup are designed for efficiency, utilizing an intuitive dial system where users simply calibrate the time and fix the ON/OFF trippers into place. The device is constructed with six advanced metal core components, ensuring it stands up to the rigors of demanding indoor environments while maintaining stable operation over time.
Safety and convenience are integrated into the design through clear, accessible wiring terminals compatible with standard copper cabling. Furthermore, the unit includes built-in power outage protection, which automatically saves your programmed settings and allows for a quick reset once power is restored, minimizing maintenance downtime.
Best for: Commercial or residential users requiring a heavy-duty, high-amperage mechanical timer for 208-240V appliances like water heaters and pool pumps.
Skip if: Users who require minute-by-minute programming or smart home integration, as this mechanical unit is limited to one-hour minimum intervals and lacks wireless connectivity.
- 40A high-capacity DPST switch for heavy-duty power management.
- Durable metal construction designed for long-term commercial use.
- Power outage protection that retains settings automatically.
- Simple, tool-free programming using mechanical trippers.
- One-hour minimum interval limits precision for short-duration tasks.
- Indoor use only restricts installation options to protected environments.
8 Intermatic WH40 Mechanical Timer — Simple Manual Operation
Managing energy consumption for home infrastructure often centers on the water heater, a device that frequently operates during hours when hot water demand is minimal. The Intermatic WH40 Mechanical Water Heater Time Switch offers a straightforward, mechanical approach to automating these cycles, allowing users to define specific operational windows for their water heating system.
This mechanical time switch is designed for simplicity and reliability, utilizing a physical dial interface that is easy to interpret at a glance. With dimensions of 5.4 x 8.2 x 3.2 inches, the unit is compact enough for standard utility installations while maintaining a robust build that weighs approximately one pound. Its gray finish provides a neutral aesthetic suitable for most utility rooms or garage environments.
The Intermatic WH40 Mechanical Water Heater Time Switch functions as a dedicated control point for your water heater, helping to ensure that the unit is only active when necessary. By relying on a mechanical timer rather than complex digital programming, it provides a consistent, user-friendly experience that avoids the potential complications of software-based interfaces or connectivity requirements.
Installation and operation are focused on the core task of scheduling. Because this is a mechanical device, it does not require complex setup procedures, making it an accessible choice for those who prefer tactile, manual controls over modern smart-home integrations. It serves as a practical tool for those looking to manage their water heater's runtime through a proven, physical switching mechanism.
Best for: Homeowners who prefer a simple, reliable, and manual mechanical interface for scheduling their water heater's daily operation.
Skip if: Users who require smart-home connectivity, remote smartphone control, or advanced digital programming features.
- Simple manual operation via an intuitive mechanical dial.
- Compact dimensions of 5.4 x 8.2 x 3.2 inches for easy installation.
- Robust mechanical design that avoids digital complexity.
- Lacks smart features such as Wi-Fi or remote app control.
- Manual scheduling requires physical adjustment rather than automated digital presets.
9 Suraielec Pool Timer — Easy-to-Read Digital Display
Managing high-load electrical devices like water heaters requires a robust solution that can handle significant current without compromising safety. The Suraielec Pool Timer is a 40 AMP heavy-duty digital switch designed to manage resistive loads across 120, 240, and 277 VAC systems, making it a versatile choice for controlling water heaters, pool pumps, and spa equipment.
Engineered for durability, this unit features a weatherproof metal casing that protects internal components from moisture, snow, dust, and direct sunlight. The enclosure is both lockable and rust-proof, which helps prevent tampering in outdoor environments. Its rechargeable battery backup ensures that your programmed settings and current time remain intact for up to three months during power outages, eliminating the need for manual resets.
The device offers extensive scheduling flexibility with 7 ON/OFF program settings, including 15-day combinations and 24-hour options. Users can also utilize the integrated Daylight Saving Time (DST) adjustment and a random function for automated lighting or equipment cycles. The unit is ETL listed and conforms to UL STD.60730-1, providing a verified standard for its electrical operation.
Installation is straightforward, designed to replace manual switches with an automated system that saves time and reduces energy waste. By maintaining a consistent schedule, the Suraielec Pool Timer provides a reliable way to manage high-draw appliances efficiently without the need for constant manual intervention.
Best for: Homeowners needing a weather-resistant, high-amperage timer for heavy-duty appliances like water heaters or pool pumps.
Skip if: Users who require a simple, indoor-only plug-in timer or those who do not have the electrical expertise to install a hardwired switch box.
- 40 AMP capacity supports high-load appliances like water heaters.
- Weatherproof metal casing provides protection against outdoor elements.
- Rechargeable battery backup retains settings during power failures.
- Versatile programming with 7 ON/OFF settings and DST adjustment.
- Hardwired installation requires electrical knowledge compared to plug-in models.
- Heavy-duty metal construction adds significant weight to the mounting surface.
10 CAI-Intermatic EH40 Water Heater Timer — Accurate Seven-Day Scheduling
Managing energy consumption for water heating systems requires precise control, and the CAI-Intermatic EH40 Water Heater Timer offers a robust solution through its 7-day scheduling capability. This unit allows users to program up to 42 ON/OFF events per week, providing granular control over when the heater operates to align with specific household usage patterns. By tailoring heating cycles to match daily routines, users can effectively manage electrical load cycles, ensuring the system only runs when hot water is actually needed.
Designed for reliability, the device features to-the-minute programming and time-keeping accuracy, ensuring that heating cycles trigger exactly when intended. An external override switch is included, allowing for manual adjustments without disrupting the pre-programmed schedule. This feature is particularly useful for irregular hot water demands, such as when guests visit or during holidays, providing a practical trade-off between automated efficiency and the need for immediate, manual control.
The unit is built with practical monitoring and safety features, including an LED load indicator that provides visual confirmation of the heater's status. To prevent the loss of programmed settings during power interruptions, the timer includes a replaceable battery backup, maintaining the schedule until power is restored. This ensures that the system remains reliable even if the home experiences temporary electrical instability.
Weighing 2.47 pounds, this timer is a dedicated tool for those looking to automate their water heating infrastructure. Its design focuses on consistent, scheduled operation, making it a straightforward addition for managing electrical load cycles effectively. While it lacks modern smart-home connectivity, its focus on physical, reliable programming makes it a stable choice for users who prefer a set-it-and-forget-it approach to water heating management.
Best for: Homeowners seeking to automate their water heater operation with precise, weekly scheduling to manage energy usage.
Skip if: Users who require smart-home integration, Wi-Fi connectivity, or remote control via mobile applications will find this manual-programming model insufficient.
- 42 ON/OFF events per week for highly flexible scheduling.
- Replaceable battery backup ensures settings are saved during power outages.
- External override switch allows for quick manual adjustments.
- LED load indicator provides clear status monitoring.
- No smart-home or Wi-Fi connectivity for remote management.
- Manual programming interface requires physical interaction with the device.
Best Hot Water Heater Timer Buying Guide
Smart vs. Mechanical Controls
Smart timers offer the convenience of remote access via smartphone apps, allowing you to adjust schedules while away from home. These units often include energy usage tracking, which helps you identify opportunities to reduce utility costs by aligning heating cycles with your actual needs.
Mechanical timers rely on physical dials or pins to set on and off times. While they lack remote connectivity, they are often preferred for their robustness and simplicity. These units are ideal for users who want a consistent, unchanging schedule and do not require frequent adjustments.
Voltage and Load Compatibility
Before purchasing, verify the voltage requirements of your water heater, as many models operate on 208-240V circuits. Ensure the timer you select is rated to handle the specific amperage and voltage of your appliance to prevent electrical hazards.
Check the horsepower (HP) or amperage rating of the timer against your water heater's specifications. Using a timer that cannot support the load of your heater can lead to premature failure of the switch or potential fire risks.
Installation and Wiring Considerations
Most water heater timers require direct wiring into the power supply line. If you are not comfortable working with high-voltage electrical systems, it is highly recommended to consult a licensed electrician to ensure the installation meets local building codes.
Look for models that feature clear wiring diagrams and simplified terminal layouts. Some modern units are designed to eliminate the need for complex jumper wires, which can significantly reduce the time and effort required for a successful setup.
Environmental Durability
If your water heater is located in a garage, basement, or outdoor area, the timer's enclosure is a critical factor. Look for units with weather-resistant or waterproof ratings to protect internal components from moisture, dust, and temperature fluctuations.
Metal enclosures are generally more durable than plastic alternatives, especially in high-traffic areas where the timer might be subject to accidental impact. A lockable cover is also a useful feature to prevent unauthorized tampering with your programmed settings.
Programming Accuracy and Battery Backup
Digital timers provide to-the-minute accuracy, allowing for precise control over your heating cycles. Many digital models include a battery backup feature, which ensures that your programmed settings are retained during power outages, saving you the hassle of reprogramming.
Mechanical timers are generally reliable but may lose time if there is a power interruption. If your area experiences frequent outages, prioritize models with internal battery backups or those that allow for easy manual time recalibration.
Frequently Asked Questions
Can I install a water heater timer myself?
Installation typically involves working with high-voltage wiring. Unless you have experience with electrical work, it is safer to hire a professional electrician to ensure the installation is safe and compliant with local codes.
Will a timer save me money on my utility bill?
Yes, by preventing your water heater from running during periods when you do not need hot water, you can reduce energy waste and lower your monthly utility costs.
Do I need Wi-Fi for a smart water heater timer?
Yes, smart timers require a 2.4GHz Wi-Fi connection to enable remote control, usage tracking, and integration with smart home platforms like Alexa or Google Assistant.
What happens to my settings during a power outage?
Many digital timers feature a built-in battery backup that retains your settings. Mechanical timers may stop during an outage and might require you to manually reset the clock once power is restored.
Can these timers be used for other appliances?
Many heavy-duty timers are versatile and can be used for pool pumps, spas, or outdoor lighting, provided the device's voltage and amperage requirements fall within the timer's specifications.
Conclusion: Our Top Pick
Our top pick is Aquanta Smart Water Heater Timer. Selecting the right timer involves balancing your need for advanced smart features against the proven reliability of mechanical systems. Ensure that your choice matches the voltage and load requirements of your specific water heater to guarantee safe and efficient operation.
By investing in a quality timer, you can gain better control over your home's energy consumption. Whether you choose a high-tech smart controller or a rugged mechanical switch, the ability to automate your water heating schedule is a practical step toward a more efficient home.