• Know the common conversion factors
  • 2.54 cm = 1 inch
  • 30.5 cm = 1 foot
  • 1 m² = 10.76 ft²
  • 1 RSI = 5.678 R(thermal resistance)
  • 1 W = 3.412 Btu/hr
  • 1 L/s = 2.12 cfm
  • °C = (°F - 32) / 1.8
  • Kelvin = -273.1°C

• See HOT2000 Help menu
• to convert R-value to RSI you divide R by 5.678, to further convert to metric(mm) you must divide RSI/inch by 25.4.

Converting common construction dimensions is an essential part of data collection and energy modelling.