Best Timers for Hot Water Heaters to Save Energy
Find the right timer to automate hot water heating, cut energy waste, and ensure hot water when it’s needed. These devices are best for homeowners who want reliable scheduling without complex installation. The top picks here cover both storage-style heaters and heavier-duty outdoor setups. The buyer’s guide below highlights what to look for, plus a quick comparison table of the featured products.
| Product | Best For | Key Benefit |
|---|---|---|
| Aquanta Smart Water Heater Timer | Homeowners with storage water heaters | Smart scheduling with Alexa compatibility |
| Aquanta Digital Water Heater Timer | Storage-style heaters needing LEV0 energy control | WiFi remote control and leak sensor |
| Aquanta Smart Water Heater Timer (Gas) | Gas heaters in smart homes | Alexa-enabled control |
| SURAIELEC Pool Timer | Outdoor or indoor high-power devices | 7-day scheduling, 40A capacity |
| DEWENWILS 24-Hour Mechanical Timer | Budget-friendly, simple setups | Reliable daily repetition |
Note: All recommendations emphasize clear control, reliable schedules, and compatibility with common water heater configurations. Use this table to compare which model best fits your heater type, placement, and tech preferences.
Aquanta Smart Water Heater Timer: Best for Smart Homes
Best for: Storage-style water heaters with a desire for remote scheduling. This timer learns your routine so you don’t have to remember to switch your heater on or off. It supports smart control via a compatible device and is UL safety certified for storage-type models. Use this if you want automatic hot water when you expect it and remote adjustments on the go.
Why selected: It combines learning capabilities with smart control, reducing standby waste while keeping hot water accessible on demand. The primary limitation is that it is designed for storage-style heaters and may not support all non-storage models without adapters or alternate wiring.
Aquanta Digital Water Heater Timer: WiFi Control
Best for: Homeowners who want WiFi-enabled control and a built-in leak sensor. The timer can learn schedules and manage storage-style heaters with UL safety certification. Choose this if you value remote monitoring and integration with smart home routines.
Why selected: The leak sensor adds a preventative layer for water-related damage, and the digital interface supports on-the-go adjustments. A potential limitation is dependence on network connectivity for full functionality.
Aquanta Smart Water Heater Timer (Gas): Alexa Compatible
Best for: Gas water heaters in homes with smart assistant integration. This model provides the same learning and remote control benefits while supporting gas-powered storage-style heaters. Use this if you want voice-activated control and routine-based hot water scheduling.
Why selected: It extends smart timer benefits to gas systems, allowing consistent hot water without manual intervention. A caveat is potential differences in installation requirements between gas and electric configurations, so verify compatibility with your system.
SURAIELEC 7-Day Digital Pool Timer
Best for: Outdoor or indoor high-power devices, including pool pumps and water heaters. This heavy-duty digital timer supports 120/240/277 VAC and up to 40A resistive loads. It is ETL-listed with a 7-day cycle network and a built-in battery backup for uptime during outages.
Why selected: The 7-day repeat cycle and battery backup make it a strong choice for systems requiring robust scheduling and resilience. Limitations include its broader use case beyond water heaters, so installation location and wiring must be appropriate for a heater circuit.
DEWENWILS 24-Hour Mechanical Timer
Best for: Budget-conscious setups requiring simple daily repeat. This mechanical timer handles 40A at 208-277V and is suitable for outdoor or indoor use with a metal, weatherproof enclosure. It suits basic water heater control without smart features.
Why selected: Reliability and simplicity are its strengths, with straightforward wiring and a familiar dial interface. A limitation is the lack of remote or digital programming, so you won’t get app-based scheduling or smart home integration.
DEWENWILS Outdoor Digital Pool Timer
Best for: Outdoor pool pumps or water heater setups requiring a 7-day, 12 ON/OFF scheduling system. It supports high loads up to 40A at 240 VAC and offers multiple modes, DST support, and a built-in backup battery to retain settings during outages.
Why selected: The flexible modes and backup battery help maintain schedules even during power interruptions. Avoid this if you only need a simple daily timer or have a non-outdoor installation where weatherproofing isn’t a concern.
Buying Guide: Timers For Hot Water Heaters
- Compatibility: Confirm whether the timer is designed for storage-style heaters, gas heaters, or higher-power outdoor installations. Match to your heater’s voltage and circuit requirements.
- Control Type: Choose between mechanical (manual) versus digital/ WiFi-enabled timers. Digital and WiFi options offer remote control and automation, while mechanical timers are simpler and often more budget-friendly.
- Scheduling: Consider timers with 7-day programs, multiple on/off settings, and daylight saving time support. More scheduling options translate to finer control over hot water timing.
- Power Rating: Ensure the timer’s amperage and voltage support your heater’s load. Higher-power devices require timers rated for 40A or more and suitable voltages.
- Smart Home Integration: If you use Alexa or other ecosystems, prioritize timers with voice control and app-based scheduling for seamless routines.
- Reliability: Look for UL/ETL listings and clear installation documentation. Battery backup in digital timers helps retain settings during outages.
Frequently Asked Questions
- What is a water heater timer used for?
A timer automates when your water heater turns on and off, reducing standby energy use and ensuring hot water during expected times.
- Do I need a professional to install a timer?
Most timers for storage-style heaters install without permanent plumbing changes, but electrical wiring can require basic electrical skills. Check the product instructions for safety guidelines.
- Can I use a pool timer for water heater control?
Some pool timers support high-power loads and can be used for water heaters if wired correctly, but verify compatibility with your heater’s voltage and circuit.
- Which timer is best for a smart home setup?
Timers with WiFi and voice-control compatibility (for example, Alexa-enabled models) are best for smart home automation and remote management.
- Are mechanical timers sufficient for hot water control?
Mechanical timers work well for basic scheduling but lack remote control and fine-grained automation found in digital options.
- What safety features should I look for?
UL/ETL certifications and UL-listed ratings indicate compliance with electrical safety standards, which is important when controlling high-current loads like water heaters.