How do I calculate what size heat pump I need?

Here’s the 1 rule of thumb:

  1. 30 BTU of heating output per 1 sq ft of living space.
  2. Heat Pump Size (2,500 sq ft) = 2,500 sq ft * 30 BTU per sq ft = 75,000 BTU.
  3. Mini-Split Heat Pump Size (1,500 sq ft) = 1,500 sq ft * 30 BTU per sq ft = 45,000 BTU.




How many square feet will a 4 ton heat pump cover?

4 ton heat pumps
Most can easily cover areas as large as 2,000 square feet.

Can you combine heat pump with gas furnace?

A dual fuel system may come in the form of a packaged unit or a split system with two energy sources: the electric heat pump and a gas furnace. Dual fuel technology combines the cooling and heating performance that you get from a heat pump with the consistent heating capacity of a gas furnace.

What happens if I oversize my heat pump?

When your heat pump is too big, the heat pump will heat the room for a shorter time, and the furnishings in your home have less time to absorb heat. Your heat pump will have to heat the room more often because it cools down quicker.

What size heat pump do I need for 1700 square feet?





Heat Pump by the Ton

Heat Pump Size Square footage forHot Climate(Zone 1&2) Square footage forWarm Climate(Zone 3)
2 ton 800-1,000 sq ft 1,000-1,200 sq ft
2.5 ton 1,000-1,300 sq ft 1,200-1,500 sq ft
3 ton 1,300-1,600 sq ft 1,500-1,800 sq ft
3.5 ton 1,600-1,800 sq ft 1,800-2,000 sq ft

How many square feet will a 18000 BTU heat pump heat?

18,000 BTU – ~850 sq. ft to ~1250 sq.

What size heat pump do I need for a 2000 square foot house?

60,000 BTU

If you have a 2,000-square-foot home, this rule of thumb suggests you need a 60,000 BTU heat pump.

What size heat pump do I need for a 2800 square foot house?



1,500 square feet: 3 tons. 2,000 square feet: 4 tons. 2,500 square feet: 5 tons. 3,000 square feet: 6 tons.

How many square feet will a 80000 BTU furnace heat?

80 X 1,000 square feet

80 X 1,000 square feet = 80,000 BTUs.

Can a heat pump be too big?



If your heat pump is too large for your home, it will short (or rapid) cycle, which isn’t healthy for the motor. If too small, it will constantly try to run to meet your temperature needs.

What happens if heat pump is too small?

If a Heat Pump is Undersized or Oversized
If a unit is too small, it will struggle to produce enough energy to heat and cool your home. To compensate, it will work harder to meet temperature demands, wasting energy and money or breaking down altogether.

What size furnace do I need for a 2200 square-foot home?

So if your home is 2,200 square feet, you’ll need a BTU output between 99,000 to 132,000 to heat the whole space. This calculation may be confusing, but Blakeslee & Son can help. Our expert installers take the guesswork out of furnace installation!

How many square feet does a 3 ton AC unit cover?

1,800 square feet



3-ton is equal to 36,000 BTU. If you apply the 20 BTU per sq ft rule of thumb, you can see that a 3-ton air conditioner cools about 1,800 square feet spaces.

How many BTU is a 2.5 ton heat pump?

Produces 51,150 BTUs of heat.

How many tons do I need for a 1500 square foot house?

2.5 tons

1,201 to 1,500 square feet homes should use 2.5 tons. If your home size is higher than the number above but is less not more than 1,800 square feet, you can go for a three-ton A/C. Choose a unit that is 3.5 tons if your home measures more than 1,800 but not more than 2,100 square feet.

How many BTUs do I need for a 1700 square foot house?



For 8,000 – 15,000 BTU, the most appropriate AC units are portable air conditioners.
How Many BTU To Cool 100 to 5,000 Sq Ft (Table)

Square Footage BTU Capacity
How many BTUs for 1700 square feet? 34,000 BTU

How much more efficient is a 18 SEER vs 16 SEER?

An 18 SEER is around 12.5% more efficient than a 16 SEER. That means for every $100 you spend to cool your home with a 18 SEER, you’ll save about $12.50 more than the 16 SEER. A good rule of thumb, the higher the SEER the more you’ll save on your electric bill.

Does a higher SEER cool better?

Most industry experts compare a SEER rating to a car’s fuel efficiency. The higher the SEER, the more efficient the cooling system should be. Similarly, cars with higher miles-per-gallon ratios go further with less fuel.

Is 21 SEER worth the money?

Even when you factor in energy rebates, you still don’t recoup the cost. So, between a 16 SEER and 21 SEER unit, it’s not really worth it in the long run to go with the higher SEER (if we’re just looking at cost). However, money isn’t the only factor to consider.