Simply divide the BTUs by 12,000
to calculate the tonnage of your unit. For example, if your air conditioner is 36,000 BTUs, you have a 3-ton unit. Some manufacturers bury tonnage or BTU information in their model numbers. Look for an even, two-digit number between 18 and 60.
How many tons is a Lennox AC?
Lennox® air conditioners and heat pumps are available in tonnages ranging from
1.5 to 5 ton
capacities. Lennox package units are offered in tonnages spanning from 2 to 5 ton capacities.
How do I know the tonnage of my Lennox air conditioner?
For Lennox, you should look for
the second cluster of digits of the model number
. It will be a number divisible by 6 or 12, and represents the nominal BTU of the system in thousands. A ton of air conditioning equals 12,000 BTU, and 48 divided by 12 equals 4, so the data plate below indicates the system is 4 tons.
How long does a Lennox air conditioner last?
Air conditioners and heat pumps last an average of
10 to 12 years
, while furnaces have a life span of around 15 to 20 years, although a number of factors, including previous maintenance and the climate you live in may impact your system's life span.
What size central air conditioner do I need for a 2000 sq ft home?
From all that, we can deduce that a 2,000 sq. ft. home needs a
3.5 ton AC unit
.
What size AC do I need for 1200 sq ft?
| House Square Footage BTUs Needed | 500 – 700 14,000 | 700 – 1,000 18,000 | 1,000 – 1,200 21,000 | 1,200 – 1,400 23,000 |
|---|
How many square feet does a 3 ton AC unit cover?
| ZONE 1 ZONE 3 | 2 Tons 901-1200 sf 1001 – 1300 sf | 2.5 Tons 1201 – 1500 sf 1301 – 1600 sf | 3 Tons 1501 – 1800 sf 1601 – 1900 sf | 3.5 Tons 1801 – 2100 sf 1901 – 2200 sf |
|---|
How do I know what BTU my air conditioner is?
All you have to do is to
multiply the length of your room in feet by the width of your room in feet, and then multiply that by 25
. That will give you the BTU needed to properly cool your room. All it takes is a simple multiplication!
How many hours should AC run per day?
The compressor alone consumes 90-95% of the power for the entire AC system. If your AC capacity is right according to your room size then for moderate summers(not too high), the compressor may run for 70-80% of the time. This would be
16-19 hours a day
. This goes for both window and split AC.
How do I tell how old my Lennox air conditioner is?
The date of production/manufacture or age of Lennox® HVAC equipment can be
determined from the serial number located on the data plate
.
What is the average life of an air conditioner?
Unlike furnaces, air conditioners are often outdoors and exposed to extreme temperatures throughout the year, which shortens their life expectancy. Modern air conditioners can last between
15-20 years
, and older air conditioners last around 10-12 years.
What happens if your air conditioner is too big?
If your air conditioner is too big, you'll
have hot spots – or inconsistent cooling – throughout your home
. Hot spots occur most often when cold air doesn't disperse through the home efficiently enough. You'll notice that some of your rooms are cool and comfortable, while others are hot and humid.
How much does an AC unit cost for a 2000 sq ft home?
Installing a central air conditioner into a 2000 square ft. home with an existing forced air furnace heating system (that has all ductwork installed properly) would cost
between $3,000 to $4,000
.
How many square feet will a 3.5 ton AC unit cool?
| Tonnage Square Footage | 2.5 1,201-1,500 | 3 1,501-1,800 | 3.5 1,801-2,100 | 4 2,101-2,400 |
|---|
How many sq ft will a 2.5 ton AC cool?
Units that are 2 tons can cool off 901-1200 square feet spaces. Units that are 2.5 tons can cool off
1201-1500 square feet
, etc. This pattern continues up to units of 5 tons that cool off 2401-3000 square feet, with every half ton increase adding about an additional 300 square feet.
How many sq feet will 24000 Btu cool?
A 24,000 BTU air conditioner would work best in a room between
1,400 and 1,500 square feet
.
