Size of the HVAC system (1.5 to 5.0 tons) Rating of the blower in CFM (Most are 350-400 CFM per ton) Square foot of the space served by the HVAC system The equation is: Tonnage x CFM of the blower / Number of square feet Example: 4-ton AC x 400 CFM blower / 2,000 square fe...
How Do You Convert BTU To Tons Yourself? If you want to calculate the number of tons or BTU, you can use this simple equation: 1 Ton = 12,000 BTU The case when you have a number of tons and want to convert to BTUs: Tons x 12,000 = Number of BTUs ...
By knowing how long does it take to cool a house down by 1 degree, we can adequately estimate how long should it take to cool a house from 80 degrees to 72 degrees, right? That’s an 8-degree difference. Here is how we can calculate how long it takes to get from 80°F to 72°...
living space in total, it's time to calculate the necessary cubic feet per minute (CFM) for each room and the house overall and factor in the output of the HVAC system, which you do by dividing 400 (the average HVAC output in CFM/ton) by the square footage to provide a multiplier. ...
A kilopascal (kPa) is metric unit used to calculate the force that an object exerts on another stationary object for every square meter of contact. This unit is commonly used in measuring atmospheric pressure and water pressure in metric countries. A Kilo-newton per meter squared (kN/m^2) ...
9,000 to 12,000 BTU – that’s .75 to 1.0 tons aka tonnage. Mini split for 1500 square feet? 36,000 to 45,000 BTU depending on where you live and home conditions. That’s roughly 3 to 4 ton mini splits. How do you calculate mini split size? The exclusive Pick HVAC Mini Sp...
There is a limit to the temperature difference across the cooling coil that air-cooled equipment can produce because of the refrigeration cycle. These types of units can typically produce a 20°F to 25°F delta T in the cooling condition. An engineer should always calculate the entering air ...
With the known tonnage (or BTUs), the SEER rating, and the HSPF rating, we can calculate almost exactly how much electricity a heat pump use (watts, kWh usage) per hour, per day, and even per month. Based on that, we can calculate how much it costs to run a heat pump per hour...
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...