Every dollar you spend on energy should either heat your home, cool your home, or power your life. If it's disappearing into cracks, attics, or standby modes, you're paying for waste. This guide covers every category of home energy loss — with direct links to our detailed fix-it guides.
Air infiltration is the #1 source of energy waste in most homes. Cold air enters through gaps, cracks, and poorly sealed openings — and your heated air escapes the same way.
A 1/8-inch gap under a standard door = a 3×4 inch hole in your wall. Open 24/7.
Single-pane windows are R-1. Even double-pane only reaches R-3. Your walls are R-13+.
Hot air rises. If your attic isn't sealed and insulated, you're heating the outdoors all winter.
Your ducts run through attics, crawl spaces, and walls. The DOE estimates 25–40% of heated air is lost through leaks before it ever reaches your rooms.
Most duct leaks happen at connections, not in straight runs. You need a simple test.
DIY mastic + mesh seals accessible joints. Aeroseal handles the rest from inside.
Your water heater runs all day, every day. It's typically the #2 energy expense in a home (after HVAC).
Lower the temp, insulate pipes, fix sediment. Simple fixes save 10–20%.
Heat water when rates are cheap. Use off-peak scheduling.
Devices that are "off" still draw power. A typical home has 20+ phantom loads running 24/7.
TV + console + soundbar + cable box = $100+/year in standby power.
Each smart speaker draws 2–5W continuously. Multiply by 10–20 devices.
If your utility charges more during peak hours (4pm–9pm), storage lets you buy cheap and use it expensive.
Tesla Powerwall, Enphase IQ. Store off-peak or solar for peak hours.
Make ice or heat water at night. Use it during the day. Zero electronics needed.
Energy costs vary 5× by state. See where yours ranks and what fixes matter most.
Don't start with expensive upgrades. Follow this sequence for maximum ROI per dollar spent:
Take the Quick Quiz, compare our recovery kits, or use the free printable checklist. Your next bill could be $200 lower starting this month.
Quick Quiz