4 Best Water Heater Timers 2024

A water heater timer is an essential tool for homeowners aiming to optimize their energy usage. These timers, available in both electric and digital formats, allow users to schedule when their water heaters operate, ensuring hot water is available precisely when needed without wasting energy.

For those with specific voltage requirements, options range from 220-volt to 240-volt timers. The evolution of technology has also introduced wifi and smart water heater timers, enabling users to control and monitor their heaters remotely.

By selecting the best timer for your needs, you can enjoy the dual benefits of convenience and energy savings.

Top 4 Best Water Heater Timers Reviews

1. Intermatic WH40 Electric Water Heater Timer

The Intermatic WH40 Electric Water Heater Timer, often referred to as the “Little Gray Box,” is a game-changer for homeowners looking to optimize their water heating schedules.

Crafted from durable steel, this timer promises longevity and resilience. It’s designed to offer up to 26% savings on your electric water heater bills. The timer’s flexibility allows users to set it for specific hours in the morning and evening, ensuring hot water is available precisely when needed.

With the inclusion of three sets of trippers, users can customize the timer from 1 to 23 hours. The external override switch adds a layer of convenience, allowing for manual control when required.

Intermatic WH40 Mechanical Water Heater Time Switch

Image & Product: Amazon

Key Features:

  • Up to 26% energy savings
  • Durable steel construction
  • Customizable timer settings
  • Convenient external override switch
  • High capacity of 10,000 watts

Compatible For:

  • Electric water heaters
  • Morning and evening usage optimization

Where Need to Improve:

  • Not suitable for non-electric heaters

2. Aquanta Digital Water Heater Timer

The Aquanta Digital Water Heater Timer is the epitome of modern water heating technology. This smart controller allows users to manage their hot water heater remotely via a smartphone, ensuring utmost convenience.

The timer not only provides control but also offers insights with its hot water availability gauge and weekly/monthly usage data comparison. Designed for a wide range of electric storage-style water heaters, this device is a testament to adaptability and innovation.

The installation process is a breeze, requiring no plumbing expertise. With the Aquanta Timer, users can now reduce electricity waste and ensure they have hot water whenever they need it.

Aquanta Smart Water Heater Timer

Image & Product: Amazon

Key Features:

  • Remote smartphone control
  • Hot water availability gauge
  • Weekly/monthly usage insights
  • Easy installation process
  • Reduces electricity waste

Compatible For:

  • Electric storage-style water heaters
  • Natural gas storage-water heaters with electronic ignition
  • Power-vented models

Where Need to Improve:

3. GE Heavy-Duty 7-Day Digital Box Timer Switch

The GE Heavy-Duty 7-Day Digital Box Timer Switch is a robust solution for those seeking reliability and versatility in their water heating systems. Encased in a rugged, wall-mountable metal NEMA-3R enclosure, this timer is designed to brave the elements, making it perfect for both indoor and outdoor use.

Its lockable door ensures that the wiring and settings are safeguarded against tampering. The timer’s universal design allows it to automatically configure itself for a range of voltages, supporting up to 40A loads.

With the ability to schedule up to nine programs throughout the week, users have the flexibility to customize their heating schedules. The timer’s override switch provides a convenient way to interrupt the timer cycle when not required.

GE Heavy-Duty 7-Day Digital Box Timer Switch

Image & Product: Amazon

Key Features:

  • Weatherproof and tamper-resistant housing
  • Universal voltage configuration
  • Up to nine programmable schedules
  • Versatile switch compatibility
  • Secure block terminals for wiring

Compatible For:

  • Pool pumps and heaters
  • Fans and AC units
  • Heating and ventilation systems

Where Need to Improve:

  • Complex setup for beginners
  • Limited to nine schedules

4. DEWENWILS Pool Timer

The DEWENWILS Pool Timer is a state-of-the-art solution tailored for modern homes. With a high power load capacity, this timer is perfect for heavy-duty applications, both indoors and outdoors.

Whether it’s water heaters, pool pumps, or air conditioners, this timer can handle it all. Its standout feature is the ability to control connected devices via a smartphone or voice commands, making it compatible with popular platforms like Alexa and Google Assistant.

Designed with durability in mind, its waterproof shell ensures that it remains unaffected by adverse weather conditions. The timer module is thoughtfully removable, simplifying the installation process.

And if users ever face challenges, DEWENWILS offers warm after-service, ensuring peace of mind.

DEWENWILS Pool Pump Timer

Image & Product: Amazon

Key Features:

  • High power load capacity
  • Smartphone and voice control compatibility
  • Weatherproof design
  • Removable timer module
  • Dedicated after-service support

Compatible For:

  • Outdoor/indoor heavy-duty applications
  • Water heaters and pool pumps
  • Air conditioners and SPA

Where Need to Improve:

  • Complex programming for some users

Benefits of a Water Heater Timer

Investing in a water heater timer can be one of the smartest decisions for homeowners. The primary advantage lies in energy savings. By scheduling the operation of your water heater, you ensure it’s active only during necessary periods, preventing wasteful energy consumption.

This not only conserves energy but also translates to noticeable cost benefits on your electricity bills. Beyond savings, using a timer can extend the lifespan of your heater.

Regularly running a water heater can lead to wear and tear; however, with scheduled heating, the operational hours are reduced, leading to increased longevity.

The sheer convenience of having hot water exactly when you need it, without any wastage, is a luxury in itself.

Buying Guide for Best Water Heater Timer

Energy Efficiency

A top-notch water heater timer can significantly reduce your energy consumption. By scheduling when your heater operates, you can ensure it’s only working when necessary, leading to potential savings on your electricity bill.


Before making a purchase, ensure the timer is compatible with your water heater type. Whether you have an electric, gas, or tankless heater, there’s a timer designed to suit your needs.

Ease of Installation

A user-friendly design can make the installation process smooth and hassle-free. Look for timers that come with clear instructions and don’t require a professional’s help.

Digital vs. Manual

Digital timers offer precise control and often come with additional features like smartphone integration. Manual timers, on the other hand, are straightforward and often more durable. Decide which suits your lifestyle best.

Durability and Weather Resistance

If you’re placing your timer outdoors, it should be able to withstand various weather conditions. Opt for timers with robust construction and weatherproof features to ensure longevity.

Flexibility in Programming

A versatile timer allows you to set multiple programs throughout the week. This feature is especially useful if your hot water usage varies from day to day.

Remote Control and Smart Features

Modern water heater timers come with smart features, allowing you to control them remotely. Some even integrate with home automation systems or voice-controlled assistants.

Safety Features

Safety should never be compromised. Ensure the timer has features like automatic shutoff and tamper-proof settings.

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Water Heater Timer Varieties

The market offers a plethora of water heater timers, each designed to cater to specific needs. Electric timers are primarily designed for electric heaters, while gas timers are for gas-operated heaters.

Within these categories, you have digital timers that offer precision and often come with additional features like smartphone integration. In contrast, manual timers are simple, durable, and straightforward.

Depending on your voltage requirements, you can also choose between 220-volt and 240-volt timers.

Installing a Water Heater Timer

Installing a water heater timer can significantly enhance the efficiency of your water heating system. By scheduling the operation of your heater, you can ensure it’s active only during necessary periods, leading to energy and cost savings. Here’s a detailed guide on how to properly install a water heater timer:

Step 1: Turn Off the Power

Before starting any installation, safety comes first. Ensure the power to the water heater is turned off at the main circuit breaker.

Step 2: Access the Heater Wiring

Remove the water heater’s faceplate to expose the wiring. You’ll typically find two main wires: one red and one black.

Step 3: Connect the Timer

Position the timer close to the water heater. Connect the timer’s wires to the heater’s wires. Usually, the red wire from the heater connects to the red wire from the timer, and similarly to the black wires.

Step 4: Secure the Connections

Using wire nuts, secure the connected wires. Ensure there’s no exposed wiring, as this can be a safety hazard.

Step 5: Set the Timer

Depending on the type of timer you have (digital or manual), set the desired on and off times. Ensure the settings align with your daily routine for maximum efficiency.

Step 6: Restore Power

Once everything is securely connected and set, turn the power back on at the main circuit breaker.

Step 7: Test the Timer

After restoring power, monitor the water heater to ensure the timer activates and deactivates the heater according to the set times.

Step 8: Secure the Timer

Mount the timer onto the wall or a secure surface, ensuring it’s stable and won’t be easily disturbed.

Step 9: Regularly Check Settings

Over time, your routine or needs might change. Periodically check and adjust the timer settings to ensure optimal performance.

Remember, while the installation process can be straightforward if you ever feel unsure or unsafe, it’s always best to consult with or hire a professional electrician to handle the installation.

Smart Water Heater Timers on the Rise

The era of smart homes has ushered in the advent of smart water heater timers. These modern devices come with Wi-Fi capabilities, allowing homeowners to control and monitor their heaters remotely.

This wireless feature provides unmatched convenience, especially for those who have unpredictable schedules.

Integration with other smart home systems is another highlight, offering a seamless home automation experience.

Setting Up Your Timer: A Guide

Setting up your water heater timer doesn’t have to be a complex task. Begin by choosing the right settings that align with your daily routine. It’s essential to strike a balance to ensure you’re not overworking your heater.

Regularly adjust the frequency based on seasonal changes or any shift in your routine. Always prioritize safety.

Ensure the timer is correctly installed, and all connections are secure to prevent any mishaps.

Care and Maintenance

To ensure the optimal performance of your water heater timer, regular care and maintenance are crucial. Periodically check the timer for any signs of wear or damage.

Clean the device to prevent dust accumulation, which can hinder its performance. If your timer is battery-operated, ensure the batteries are replaced at regular intervals.

For digital or smart timers, software updates might be available, so keep them updated for smooth operation.

Regular maintenance not only ensures efficient performance but also extends the timer’s lifespan.

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Common Questions About the Best Water Heater Timer

How Does a Water Heater Timer Work?

A water heater timer functions by scheduling the operation of your water heater. It ensures the heater is active only during set periods, optimizing energy usage and providing hot water as needed.

Why Should I Invest in a Water Heater Timer?

Investing in a water heater timer can lead to significant energy savings, reduced electricity bills, and an extended lifespan for your heater. It also offers the convenience of having hot water exactly at your preferred times.

Are There Different Types of Water Heater Timers?

Yes, there are various types, including electric, gas, digital, and manual timers. Each is designed to cater to specific needs and types of water heaters.

Can I Install a Water Heater Timer Myself?

While many homeowners can install a timer themselves, especially with user-friendly designs, it’s always recommended to consult or hire a professional if unsure to ensure safety and proper installation.

Do Smart Water Heater Timers Offer Remote Control?

Absolutely. Smart water heater timers often come with Wi-Fi capabilities, allowing users to control and monitor their heaters remotely via smartphones or voice-controlled assistants.

What Voltage Options Are Available for Water Heater Timers?

Water heater timers are available in various voltage options, commonly ranging from 220-volt to 240-volt, to cater to different power requirements.

How Often Should I Check or Adjust My Timer Settings?

It’s advisable to periodically check and adjust your timer settings, especially if there’s a change in your routine or during seasonal transitions to ensure optimal performance.

Final Verdict

Based on the discussion, a water heater timer emerges as a valuable addition to any home. It not only optimizes energy usage but also ensures you have hot water exactly when you need it. Whether you opt for a digital, manual, electric, or smart timer, the key is to choose one that aligns with your needs and lifestyle. Regular maintenance and periodic checks will ensure its longevity and efficiency. Investing in a quality timer can lead to significant savings and convenience in the long run.

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