A British Thermal Unit per hour (\\(\\text{BTU/hr}\\)) is a unit of power commonly used in heating, ventilation, and air‑conditioning (HVAC) to describe the rate of heat transfer. One BTU is the amount of energy needed to raise the temperature of one pound of water by one degree Fahrenheit.
\n
What is a kilowatt?
\n
A kilowatt (\\(\\text{kW}\\)) is an SI unit of power equal to 1,000 joules per second. It is widely used in electrical engineering, renewable‑energy calculations, and industrial power ratings.
\n
Why convert between them?
\n
Many specifications in the United States are given in BTU/hr, while international standards and most modern equipment use kilowatts. Converting allows engineers to compare, size, and integrate equipment across different standards.
\n
\n
HVAC system sizing
\n
Boiler and furnace rating
\n
Energy‑efficiency analysis
\n
Renewable‑energy system design
\n
\n
The conversion factor is:
\n
\\(1\\ \text{BTU/hr}=0.000293071\\ \text{kW}\\)
BTU per hour to Kilowatt Conversion Reference Table
1 BTU/hr is roughly the heat output of a small candle or the energy needed to keep a 1‑square‑foot window pane a few degrees above outdoor temperature.
\n
\n
\n
\n \n
\n
The factor 0.000293071 kW per BTU/hr is exact to six significant figures. For most engineering work the resulting kW value is accurate to within 0.1 %; if higher precision is required, use the full conversion 1 BTU/hr = 0.00029307107 kW.
\n
\n
"On fait la science avec des faits, comme on fait une maison avec des pierres ; mais une accumulation de faits n'est pas plus une science qu'un tas de pierres n'est une maison." "Science is built up of facts, as a house is built of stones; but an accumulation of facts is no more a science than a heap of stones is a house." — Henri Poincaré (French Mathematician, Theoretical Physicist & Mining Engineer)