窗口 U 值计算器
使用此免费在线工具计算窗口 u 值
Window U-Value Calculator
Calculate heat loss through windows and potential savings from upgrades
Heat Loss Analysis
U-Value: 0.5
Total Window Area: 120 sq ft
Heat Loss: 3900 BTU/hr
Annual Heating Cost: $137124/yr
Upgrade to Triple Pane
New Heat Loss: 1950 BTU/hr
Annual Savings: $68562/yr
Window U 值计算器是一款完全在浏览器中运行的免费工具。无需注册，无需下载 - 只需打开并使用它。
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