Heat Pump and Air Conditioning Chart

.	Zone 1	Zone 2	Zone 3	Zone 4	Zone 5
18,000 BTU / 1.5 Tons	600 - 900 sf	600 - 950 sf	600 - 1000 sf	700 - 1050 sf	700 - 1100 sf
24,000 BTU / 2 Tons	901 - 1200 sf	951 - 1250 sf	1001 - 1300 sf	1051 - 1350 sf	1101 - 1400 sf
30,000 BTU / 2.5 Tons	1201 - 1500 sf	1251 - 1550 sf	1301 - 1600 sf	1351 - 1600 sf	1401 - 1650 sf
36,000 BTU / 3 Tons	1501 - 1800 sf	1501 - 1850 sf	1601 - 1900 sf	1601 - 2000 sf	1651 - 2100 sf
42,000 BTU / 3.5 Tons	1801 - 2100 sf	1851 - 2150 sf	1901 - 2200 sf	2001 - 2250 sf	2101 - 2300 sf
48,000 BTU / 4 Tons	2101 - 2400 sf	2151 - 2500 sf	2201 - 2600 sf	2251 - 2700 sf	2301 - 2700 sf
60,000 BTU / 5 Tons	2401 - 3000 sf	2501 - 3100 sf	2601 - 3200 sf	2751 - 3300 sf	2701 - 3300 sf

Select which Zone your home is located in, match up your square footage and slide accross to left to find your homes BTU’s on Tonage (Do not count basement in your homes square footage.)

 

Forced Hot Air Heating Chart (Oil, Natural Gas, Propane)

Zone 1	Zone 2	Zone 3	Zone 4	Zone 5
40- 45 BTU’s per square foot	45- 50 BTU’s per square foot	50- 55 BTU’s per square foot	55- 60 BTU’s per square foot	60- 70 BTU’s per square foot

Example:
Select your Zone, then multiply your homes square footage by the BTU multiplier. This gives you, the BTU input for your new furnace. Then match your new furnace as close as possible. (Do not count basements in your home’s square footage.)

Home is located in Zone 2 and is 1200 Sq. Ft.
1200 sq. ft.
x 50
-----------------------
60,000 BTU Input

Furnace selections:
50,000 BTU Input
75,000 BTU Input
100,000 BTU Input
125,000 BTU Input

You would choose the 75,000 BTU Input furnace. Never go under if between two sizes, always go up to larger size.

These charts are quick reference only, and should only be used as a last resource. The correct way to size the proper system for your home is to do a Manual J.

It is easy to do and only costs $49.00. If you do an online Manual J, HVAC-Webdirect will refund your $49.00 when you purchase a system from us.

Click here to do your on line Manual J.