Buying Guide
Best energy saving tools for ordinary homes.
These are the product categories most likely to help when your electric bill feels too high. The key is matching the product to the actual problem instead of buying gadgets at random.
Fast Answer
If you only buy one thing, buy based on the cause.
If your issue is...
Buy this first
Skip this for now
Cooling or heating runtime
Smart thermostat
Random gadget bundles
Mystery appliance usage
Plug-in energy monitor
Replacing multiple devices blindly
Drafty windows and doors
Sealing products
Assuming the plan is the only problem
Lighting-heavy home
LED bulbs
Expensive automation first
Compare Categories
Use case first. Product second.
Best for HVAC schedules
Smart thermostats
Strong fit if your heating or cooling runs too often, your schedule changes often, or you forget to adjust temperatures when leaving the house.
- Best in homes with central HVAC
- Often the highest-impact control upgrade
- Less useful if your problem is a single appliance
Amazon affiliate link. As an Amazon Associate, Energy Cost Check may earn from qualifying purchases.
Best for mystery devices
Plug-in energy monitors
Buy this when you want evidence before replacing anything. It is especially useful for garage fridges, dehumidifiers, entertainment systems, and space heaters.
- Shows real device-level usage
- Good for diagnosing stealth loads
- Not a savings device by itself
Amazon affiliate link. As an Amazon Associate, Energy Cost Check may earn from qualifying purchases.
Best for renters
Smart plugs
One of the easiest ways to automate fans, lamps, coffee setups, and electronics that stay on longer than needed.
- Quick setup
- Useful timers and schedules
- Great for partial-room control
Amazon affiliate link. As an Amazon Associate, Energy Cost Check may earn from qualifying purchases.
Best low-cost upgrade
LED bulbs
Still worth doing in lighting-heavy homes, especially if you have older bulbs in kitchens, garages, bathrooms, and outdoor fixtures.
- Cheap and simple
- Good for many fixtures at once
- Won't solve HVAC-driven bills
Amazon affiliate link. As an Amazon Associate, Energy Cost Check may earn from qualifying purchases.
Best for drafty rooms
Weather stripping and window kits
Usually the right move when one room never feels comfortable or older windows obviously leak conditioned air.
- Cheap first fix
- Helps both summer and winter
- Especially useful in older homes
Amazon affiliate link. As an Amazon Associate, Energy Cost Check may earn from qualifying purchases.
Best for comfort support
Energy-efficient fans
Fans can improve comfort and reduce how aggressively you rely on cooling in occupied rooms, especially when paired with better thermostat settings.
- Works well with AC strategy
- Better comfort in key rooms
- Not a substitute for sealing leaks
Amazon affiliate link. As an Amazon Associate, Energy Cost Check may earn from qualifying purchases.
Decision Matrix
Which product category actually deserves your money?
Smart thermostats
Buy if: you have central HVAC and uneven schedules.
Skip if: your issue is clearly a single appliance or drafty room.
Energy monitors
Buy if: you want proof before replacing equipment.
Skip if: you already know the issue is scheduling.
Smart plugs
Buy if: you rent or need simple timers and automation.
Skip if: your real cost is whole-home HVAC use.
LED bulbs
Buy if: you still have older bulbs across many fixtures.
Skip if: lighting is a tiny part of the problem.
Next Step
Still not sure what to buy first?
Use the calculator for a bill range or run the checklist if you want a room-by-room way to spot waste.