What is the temperature range for converting Fahrenheit to BTUs in the context given?

The correct range for converting Fahrenheit to British Thermal Units (BTUs) in this context is 32°F to 212°F. This range is significant because it encompasses the phase changes of water, specifically the freezing point at 32°F and the boiling point at 212°F, which are critical reference points in thermodynamic calculations.

In HVAC applications, understanding the energy transfer associated with temperature changes, particularly around these key points, is essential for effectively managing heating and cooling processes. Since BTUs are a measure of heat energy, the conversion involving these particular temperatures allows for accurate calculations related to heating and cooling loads, total energy consumption, and system efficiency.

Outside of this range, conversions can still be made, but the chosen temperature span encapsulates the critical phase change of a common working fluid, water, making it especially relevant in HVAC contexts.