Home energy guides
Straightforward guidance on where to start, what to upgrade, and how to make the numbers work for your home.
All guides
46 articles
Window Replacement vs Fixes: Avoid a Costly Mistake
Before you replace windows for energy savings, use this framework to spot drafts, condensation causes, and cheaper fixes that often work.
Cold rooms, hot rooms: fix uneven temps before big upgrades
Weekend-level fixes to even out hot and cold rooms before spending on new HVAC or windows.
How We Calculate Costs and Savings: Our Methodology
Where our upgrade estimates come from, the data we use, and the limits you should know before trusting payback numbers.
Home energy terms in plain English (from SEER2 to U-factor)
Plain-English guide to SEER2, HSPF2, AFUE, U-factor, SHGC, ACH50, kWh and other labels so you can compare quotes and plan upgrades.
Why your energy bill is so high: 7 things to check first
A 10–20 minute checklist to find whether billing quirks, weather, HVAC, hot water, or new gadgets are driving your high bill.
Heat pump water heater ROI without the hype
Will a heat pump water heater pay back in your home? Run the numbers with realistic install costs, COP, and incentives.
How to read your utility bill without guessing
Translate your utility bill into kWh, therms, and actual costs per end-use so you can target the right upgrade.
Air sealing weekend checklist: plug the worst drafts in 2 days
Calm the worst drafts in a single weekend with a DIY air sealing plan that tackles doors, attic access, outlets, and penetrations—without opening walls.
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