25 cubic feet
2.0 ton or 2.5 ton
By the cooling load of the home only.
The average cost to recharge a home heat pump can vary depending on the size and type of heat pump, the refrigerant needed, and local labor rates. On average, it can cost between $300 to $1000 to recharge a home heat pump. It is recommended to consult with a professional HVAC technician for an accurate estimate.
4-5 tons
2 ton
The size of a heat pump that you can use for a pool which is 18 feet wide by 33 feet long and has a depth of 4.5 feet can vary depending on specific brand of heat pump you wish to purchase. The minimum size of heat pump for an above ground pool of this size in 102,000 BTU.
it is a 12 seer 4 ton heat pump
The rule of thumb is 2-1/2 tons per 1000 square feet.
Check your owners manual for details.
A commonly used formula is 600-650 square feet per ton. So it would be recommended to use a 2-ton heat pump for a 1300 square foot home. However, other variables are often considered, too, such as the age of the house.
Rule of thumb is 1.5 tons per 1000 square feet of home.