Home Insulation Savings
Insulated Area (m²)
Current R-value
New R-value
Heating Degree Days
Energy Rate ($/kWh)
Home insulation reduces heat loss through walls, loft, and floor. Higher R-value = better insulation. Loft insulation typically offers the fastest payback — often under 2 years.
References
🔒
100% Free
No sign-up ever
✓
Accurate
Verified formulas
⚡
Instant
Results as you type
📱
Mobile Ready
All devices