Job Quotes Quantity/Freight Discounts
Square Feet BTU Needed
100 to 150 5000
150 to 250 6000
250 to 300 7000
300 to 350 8000
350 to 400 9000
400 to 450 10000
450 to 550 12000
550 to 700 14000
700 to 1000 18000
1000 to 1400 24000
How To Use The Chart
Simply measure the width and length of your room in feet then multiply the two together. For example: The length of the room is 25 feet long and the width is 20 feet wide. Square Footage= 25ft. X 20 ft.= 500 square feet. Then simply match it to the chart on the left to find the type of unit that is right for you. If you have an irregular shaped room simply measure the widths and lengths of all the irregular areas and multiply them. Then take the square footage of each of these areas and add them together. This calculator is based on a standard 8 foot ceiling height. Rooms with higher ceilings will require more BTU. Additional considerations such as number of windows and size, insulation and sun exposure need to be factored in as well. This table is a guide only. Please feel free to call us if you have any questions. If you need help deciding please call (866) 259-8500 TOLL FREE
Ptac plug types


1. What is a PTAC? A PTAC is a packaged terminal air conditioner that cools and heats. A PTAC provides warm air through an electric resistance heater (heat strip). A PTHP is a packaged terminal heat pump. A PTHP uses its compressor year round to heat or cool. In warm weather, it efficiently captures heat from inside your home and pumps it outside for cooling. In cool weather, it captures heat from outdoor air and pumps it into your home, adding heat from electric heat strips as necessary to efficiently provide heat. When the temperature is 38 degrees Fahrenheit or lower the unit switches to heat strip to provide heat.

2. Which unit saves me more money on my electric bill? Heat pump models offer substantial savings over models with conventional electric resistance heaters.

3. Can I replace my existing unit with a different brand? Yes, You have two options. You can just replace the units. Most brands are the same standard size (42" wide, 16" high, and 13 3/4" deep). Most PTACs will fit into most major competitors wall sleeves/grilles. Your other option is to replace the wall sleeves/grilles with your new brand's accessories.

4. What is the correct plug type for my unit?

Which Unit is right for me?
    For brochure and product data click on one of the images below!
Amana Ptac Brochure Friedrich Ptac Brochure

How do I install my unit?
For installation instruction click on one of the images below!
Amana Ptac Installation Manual Friedrich Ptac Installation Manual
Installation Manual