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Watts and BTU (British Thermal Unit) are units of measurement used to quantify energy and heat.
Watt is the standard unit of power in the International System of Units (SI). It measures the rate at which energy is transferred or work is done. One watt is equal to one joule of energy per second. Watts are commonly used to express the power consumption of electrical devices, such as light bulbs, appliances, and electronics.
BTU is a unit of heat energy. One BTU is the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit at a constant pressure. It is often used in the context of heating, ventilation, and air conditioning (HVAC) systems to quantify the amount of heat produced or removed.
In some regions, particularly in the United States, BTUs are also used to measure the energy content of fuels, such as natural gas and propane.
P(BTU/hr) = 3.412141633 × P(W)
So
1W = 3.412141633 BTU/hr
For Example – Convert 4500W to BTUs per hour
Ans. P(BTU/hr) = 3.412141633 ⋅ 4500W = 15,354.45 BTU/hr
| Power (watt) | Power (BTU/hr) |
| 1 W | 3.412142 BTU/hr |
| 10 W | 34.121416 BTU/hr |
| 100 W | 341.214163 BTU/hr |
| 1000 W | 3412.141633 BTU/hr |
| 10000 W | 34121.416330 BTU/hr |
1 BTU (British Thermal Unit) is approximately equal to 0.29307107 Watts.
40,000 BTU is approximately equal to 11,724.8428 Watts.
5,000 BTU is approximately equal to 4,396.6071 Watts.
1 ton AC (Air Conditioner) is equal to 3,516.85284 Watts.
A 1 ton AC unit is equal to 12,000 BTU.
1.5 tons is equal to 18,000 BTU.
The BTU requirement for cooling a 1500 sq ft area depends on various factors, such as insulation, climate, and sunlight exposure. As a general guideline, you would typically need approximately 20-25 BTU per square foot, so for a 1500 sq ft area, you would need around 30,000 to 37,500 BTU.