The BTU (British Thermal Unit) is a standard measure used for rating the energy output of appliances (such as heating and cooling systems) and for measuring energy consumption. One BTU is equal to the energy needed to increase the temperature of one pound of water by one degree Fahrenheit. ...
Calculate how many BTUs you need to heat a room or even a house with a wood-burning, pellet or gas fireplace, insert or stove. This BTU Calculator...
000 BTU window unit, for instance, can typically cool a room of 300 to 350 square feet, according to the California Energy Commission. However, window AC units with the same BTU rating can use different amounts of power to achieve that cooling. A unit's Energy Efficiency...
If you already know the basics of CFM (Cubic Feet per Minute) and ACH (Air Changes per Hour) and just want to find out what’s needed for your home, skip to the Pick HVAC CFM Calculator. This tool will help you determine the CFM needed based on the ACH your space requires. It’s...
How To Calculate CFM For A Room? (Solved Example) Let’s say we have a big 1,000 sq ft room with standard 8 ft high ceiling. We want to calculate the CFM of a fan that will exchange all the air in such a room every 15 minutes (ACH = 4). ...
According to The U.S. Department Of Energy recommendation for the size of room air conditioners: “…an air conditioner generally needs 20 BTU for each square foot of living space.” Based on room size, ceiling height, and other conditions, you can calculate how many BTU air conditioner you...
I have an open drum filled with water, 100lt and heating with a LP gas burner. How do I calculate the BTU hr heating the water to say 100 C I need a safety tilting valve to cut off the gas flow...
For resistive loads (most common type): Wattage = amperes x volts For reactive loads: Wattage = amperes x volts x load factor Load factor is the ratio of your electric energy use in kilowatt-hours to your peak demand in kilowatts. You can calculate it by consulting your utility bill for...
Measure building heat loss: This article explains how to insulate a building and how much insulation is needed including how to measure or calculate heat loss in a building.We define heating, coolilng and thermal terms like BTU and calorie, and we provide measures of heat transmission in or ...
Now you can use the formula below to calculate the BTU capacity per hour needed for your pool. BTU/hour = pool area X temperature rise X 12 Let’s use the figures below as an example where the pool area is 300 square feet. The desired temperature is 80℉, and the coldest month’s ...