Convert Thermochemical kilocalorie per hour per square metre to Celsius Heat Unit per hour per square foot
Convert Thermochemical kilocalorie per hour per square metre (kcal(th)/(h·m²)) to Celsius Heat Unit per hour per square foot (CHU/(h·ft²)) instantly and accurately.
Conversion Formula
CHU/(h·ft²) = kcal(th)/(h·m²) × 0.204679169
About Thermochemical kilocalorie per hour per square metre
The thermochemical kilocalorie per hour per square metre (kcal(th)/(h·m²)) equals 4184/3600 ≈ 1.1622 W/m² (1 kcal(th) = 4184 J; 1 h = 3600 s). Used in older continental European and Soviet-era building physics standards for wall and roof heat loss calculations. 1 kcal(th)/(h·m²) ≈ 1.1622 W/m².
About Celsius Heat Unit per hour per square foot
The Celsius heat unit per hour per square foot (CHU/(h·ft²)) equals (9/5)×1055.05585262/(3600×0.09290304) ≈ 5.6783 W/m². The CHU (= 9/5 BTU(IT)) uses a 1 °C temperature interval instead of 1 °F; historically used in UK and Canadian heating engineering. 1 CHU/(h·ft²) ≈ 5.6783 W/m² = (9/5) × BTU(IT)/(h·ft²).
Quick Reference Table
| Thermochemical kilocalorie per hour per square metre (kcal(th)/(h·m²)) | Celsius Heat Unit per hour per square foot (CHU/(h·ft²)) |
|---|---|
| 1 kcal(th)/(h·m²) | 0.204679 CHU/(h·ft²) |
| 2 kcal(th)/(h·m²) | 0.409358 CHU/(h·ft²) |
| 5 kcal(th)/(h·m²) | 1.0234 CHU/(h·ft²) |
| 10 kcal(th)/(h·m²) | 2.04679 CHU/(h·ft²) |
| 25 kcal(th)/(h·m²) | 5.11698 CHU/(h·ft²) |
| 50 kcal(th)/(h·m²) | 10.234 CHU/(h·ft²) |
| 100 kcal(th)/(h·m²) | 20.4679 CHU/(h·ft²) |