How do you figure the required tonnage for air conditioning a specific space?

Question

I am considering getting a heat pump with several indoor units. The indoor units note their Kw capacity as well as BTU capacity and the outdoor unit notes its total capacity in kW and BTUs. I don't know how the kW capacity is related to BTUs nor how to figure how many BTUs I need for each room/ indoor unit. Knowing how many BTUs I need for each room would be a start (I think!)

Thanks for your help.

Answer 1

When designing an HVAC system, you should use a computer program, such as, WrightSoft™ and HVAC Computer Services ™. These programs give an accurate residential HVAC comparison of price, savings, and payback. The largest waster of residential energy in the U.S. is poor HVAC duct construction.

Many heating and cooling companies do not understand the significance of properly designing an HVAC duct system. A poor duct system design equals an uncomfortable home and high utility bills. Proper air conditioning size cannot be estimated. It must be calculated.

Answer 2

You best bet is to call an air conditioning installer who can answer all your questions. In fact call several and ask for an estimate for installation. While they are there they will answer you questions, then you will know and undertand more completely the ins and outs of figuring square footage and will have a better understandin gof what is involved. Most estimates are free. With several estimates you will will be able to get more and more information from each person.