Home energy guides
Straightforward guidance on where to start, what to upgrade, and how to make the numbers work for your home.
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How to plan home energy upgrades without wasting money
Step-by-step plan to prioritize weatherization, right-sized HVAC, water heating, and solar so you avoid expensive missteps.
Heat Pump vs Furnace in Winter: Do Heat Pumps Work in the Cold?
Heat pumps work below freezing, but the right choice depends on your electric vs gas price, your climate, and whether you pick a cold-climate model. Here is how to decide, with your own rates.
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57 articles
Tesla Powerwall 3 Installed Cost in 2026: The Real All-In Number
Tesla Powerwall 3 installed cost in 2026 is about $13,000 to $16,500 all-in (battery, Gateway, labor, permits). The 30% federal credit is gone. Full breakdown.
Air Duct Cleaning Cost in 2026: Real Prices and When to Skip It
Air duct cleaning costs $300 to $700 for a typical home (about $35 per vent). Honest 2026 guide: what gets upcharged, and why most homes do not need it.
Attic Insulation Cost in 2026: Price by Material, Size, and R-Value
Attic insulation costs about $1,500 to $3,500 for a typical home, or $1.50 to $4 per sq ft. See 2026 prices by material, attic size, and tax credit.
Heat Pump Installation Cost Calculator: Estimate Your 2026 Price Before You Get Quotes
Most homes pay $6,000–$18,000 to install a heat pump in 2026. Estimate yours by tonnage and system type, then run your own numbers before you call anyone.
Blown-In Insulation Cost per Sq Ft (2026): Cellulose vs Fiberglass by R-Value
Blown-in insulation costs $1.50 to $3.50 per sq ft installed in 2026 ($0.90 to $1.80 DIY). Cellulose vs fiberglass by R-value, attic vs walls, bags needed.
Mini Split Cost Installed (2026): Real Prices by Zone and BTU
Mini split cost installed: about $3,000–$6,000 for one zone, $8,000–$18,000+ whole-home in 2026. Real 2026 prices by zone count and BTU.
Crawl Space Encapsulation Cost in 2026: Full Breakdown by Size and Line Item
Crawl space encapsulation costs $3 to $10 per sq ft, or about $5,500 average ($1,500–$15,000). See the line items, DIY vs pro, and what drives the spread.
Air Duct Replacement Cost in 2026: By Foot, By Home Size, and When to Seal Instead
Air duct replacement costs $1,400–$7,000 (avg ~$3,500), or about $9–$25 per linear foot. See pricing by home size, material, and when sealing beats replacing.
Heat Pump Water Heater Cost in 2026: Installed Price by Tank Size
A heat pump water heater costs about $2,800–$6,500 installed in 2026. Real prices by tank size, the add-ons that move the number, and operating-cost math.
Attic Insulation Removal Cost (2026): $1–$2/sq ft, Plus Contamination Surcharges
Attic insulation removal costs $1–$2 per sq ft, or about $1,600–$3,600 for a typical attic. Rodents, mold, or asbestos push it far higher. Here's the honest 2026 breakdown.
Window Replacement Tax Credit (2026): What Qualifies + How to Document Your Purchase
Window replacement tax credits can be real—but only if you can document what qualifies. Here’s a practical checklist for homeowners to reduce uncertainty.
Spray Foam Insulation Cost per Sq Ft: Open vs Closed Cell + Realistic Budget Ranges
Spray foam insulation costs depend on strategy, not hype. Learn open vs closed cell tradeoffs, roofline vs attic floor choices, and how to compare quotes.
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