No I think you will need an 18000 condenser for an 18000 BTU.
HOW MANY BTU IN A 1 HP 2545 btu = 1 HP
HOW MANY BTU IN A 1 HP 2545 btu = 1 HP
18000 BTU means TON 1.5 ,12000 BTU means 1 TON
18000 btu or 1.5 tons.
One BTU per second is 1.434 hp
700 to 1000
8,000 BTU is 3.1hp
Air Conditioning: 1 Ton = 12000 BTU
2.25HP is 5,724.95 BTU/hr
Roughly 320-350 square feet.
32,000Btu = 13hp