Time Saver:If you’re looking for a quick & easy calculation and already know the principles of CFM and ACH, use the Navigation tool to jump to thePick HVAC CFM Calculatorwhich gives CFM needed based on the number of ACH your space requires. OK, for most of us, let’s take it a li...
you will also have to understand what AC tonnage that is. Conversely, when you use theAC tonnage calculator here, it might be useful to convert those tons into BTU to give you a better understanding of the cooling or heating output you need. ...
Calculate heat transfer rate, Q. Q is measured in units of energy per unit time, such as BTU/hr or Watts. For a wall of uniform thickness d, with a thermal conductivity of k, an area of A, a hot temperature, Thot, and cold temperature, Tcold, solve Q with the following equation:...
Heat pumps are extremely energy efficient. With the knowntonnage(or BTUs), theSEER rating, and theHSPF rating, we can calculate almost exactly how much electricity a heat pump use (watts, kWh usage)per hour,per day, and evenper month. Based on that, we can calculate how much it costs ...
Due to HOA restrictions and a sliding glass window, I plan to get a portable air conditioner. I’ve read about dual hose conditioners and not sure if that’s the best way to go. I’m not sure how to calculate the necessary BTU’s needed. Can you help with any thoughts on this?