10 Smart Home Gadgets Under $100 That Boost Energy Efficiency in Your Rental

If you rent your home or apartment, creating an energy-efficient environment can seem challenging—especially when you can’t make permanent changes. But the world of affordable smart home gadgets is making it easier than ever to cut costs, reduce waste, and shrink your carbon footprint, all without risking your security deposit.

Smart home tech is no longer expensive or complicated. For less than $100, you can get innovative devices to manage your energy use from your phone, automate your daily routines, and enjoy a more comfortable home—while keeping things totally renter-friendly.

Ready to put your rental on an eco-friendly upgrade path? Here are 10 smart gadgets under $100 that will help you save energy, reduce your utility bills, and make your living space greener starting today.

1. Smart Plugs: Control Your Devices From Anywhere

Smart plugs are small, inexpensive plug-in devices that transform ordinary electronics into smart devices. Simply plug them into your outlets, connect them with your smartphone, and instantly gain remote and scheduled control over any plugged-in device.

• Energy savings: Eliminate “phantom loads” by turning off devices that draw power even when not in use.
• Easy to install: No tools or rewiring required—perfect for renters.
• Scheduling & automation: Create routines so your devices turn on/off automatically.

Best Uses for Renters

• Control lights, coffee makers, fans, and entertainment systems remotely.
• Use voice assistants (Alexa, Google Assistant) for even easier control.
• Track and monitor energy use (with some models).

2. LED Smart Bulbs: Bright Ideas for Savings

Upgrading to LED smart bulbs is one of the simplest steps toward a greener rental. These bulbs use at least 75% less energy than incandescent bulbs and often last over 15 times longer. Smart bulbs are affordable, easy to install, and customizable.

• Dimming & color control: Choose the right light for any mood or task right from your phone.
• Scheduling: Set your lights to turn on or off automatically for security and convenience.
• Voice and app control: No need to even touch the switch.

Best Uses for Renters

• Automate lights for when you’re away, saving energy and boosting security.
• Customize lighting for every room and activity.
• Switch with you when you move to a new place.

3. Smart Thermostats (Plug-in Models)

While most smart thermostats are designed to replace existing wall units (which is often off-limits for renters), there are smart thermostats that control plug-in heaters, fans, or portable ACs.

• Plug-in control: Use an app or set a schedule so your room is always the right temperature.
• Reduce waste: Only run heaters/AC when needed, not all day or night.
• Geofencing: Some models turn devices off when you leave home, and back on when you return.

Best Uses for Renters

• Perfect for rooms with portable ACs, space heaters, or fans.
• Save energy in home offices, bedrooms, and living rooms.

4. Smart Power Strips: Eliminate Standby Power

Many electronics use energy even when turned “off”—this is known as standby or vampire power. Traditional power strips help, but smart power strips take savings further.

• Surge protection + energy management: Turn off multiple devices from your phone or schedule them with timers.
• Individual outlet control: Some smart strips allow you to manage each outlet independently.
• Energy monitoring: View real-time or historical usage for plugged-in devices.

Best Uses for Renters

• Home entertainment centers, office setups, and gaming stations.
• Plug in chargers, AV equipment, printers, and more.

5. Smart Window Shades on a Budget

Smart shades can be pricey, but several budget-friendly devices exist to automate your current window coverings. They typically use a small motor or pulling system and connect to your phone for scheduling.

• Automated shade control: Open or close blinds and shades remotely or on a timer.
• Reduce heating/cooling costs: Close blinds during hot days, open for natural light in winter.
• Easy to remove: No drilling into walls required—great for rental spaces.

Best Uses for Renters

• Regulate temperature without relying on AC/heat as much.
• Enhance privacy with timed closing routines.

6. Smart Shower Timers: Save Water and Energy

Hot showers can drive up both water and energy bills. A smart shower timer tracks real-time water usage or sets limits to help you (and your household) reduce water and the energy needed to heat it.

• Visual or app-based alerts: Get notified when time’s up or when you’ve hit a preset limit.
• Easy installation: Attaches to the shower or sits nearby—no plumbing work needed.
• Fun for families: Turn water-saving into a challenge or game.

Best Uses for Renters

• Avoid high utility bills in multi-person homes.
• Make water usage tracking simple and effective.

7. Smart Radiator Valves: Zonal Heating Control

If you live in a rental with radiator heat, consider adding smart radiator valves. These devices attach to your radiator’s valve to allow scheduling, temperature control, and zoned heating—all via your phone.

• No boiler or system replacement required: Just swap the manual knob with a smart one.
• Only heat the rooms you use: Avoid wasting energy in empty areas.
• Programmable: Set temperature routines to match your lifestyle.

Best Uses for Renters

• Individually control radiators in bedrooms, living rooms, or home offices.
• Remove and take the valve when you move.

8. Smart Leak Detectors: Prevent Water Waste (and Damage)

Leaks not only waste water but can cause serious (and expensive) property damage. Smart water leak detectors sit near places prone to leaks (sinks, water heaters, washing machines) and alert you via phone if water is detected.

• Mobile alerts: Get instant notification before leaks become disasters.
• Simple installation: Just place the detector near risk points—no tools needed.
• Save on utilities and avoid landlord disputes: Early detection means faster fixes and less water waste.

Best Uses for Renters

• Kitchen sinks, bathroom vanities, and behind appliances.
• Add peace of mind to laundry rooms or utility closets.

9. Smart Ceiling or Table Fans with Remotes

Cooling your home with fans uses a fraction of the energy of air conditioning. Modern smart fans or remote-enabled plug-ins can be integrated into Alexa or Google Home setups for voice or app control.

• Remote and app control: Adjust speed and oscillation from anywhere.
• Scheduling & routines: Set fans to turn on only when needed or based on room occupancy sensors.
• Mimic presence: Great for security when you’re away.

Best Uses for Renters

• Supplement or replace AC in living spaces.
• Cool only the rooms you’re using, reducing overall energy demand.

10. Smart Energy Monitors: Find Your Home’s Hidden Energy Hogs