##### Asked by: Ailton Landwehr

asked in category: General Last Updated: 10th January, 2020# How do I know what size heat pump I need?

**While inside your home we first consider the square footage of the room/area and using this guide determine which sized heat pump will suit that space:**

- 9,000 BTU – ~250 sq. ft to ~450 sq. ft.
- 12,000 BTU – ~550 sq. ft to ~800 sq. ft.
- 15,000 BTU – ~750 sq. ft to ~1100 sq. ft.
- 18,000 BTU – ~850 sq. ft to ~1250 sq. ft.

Considering this, how do I calculate what size heat pump I need?

**Calculate** the square footage of the room by multiplying its length by its width. Multiply the area by 25. This answer is the approximate British Thermal Unit (BTU) output you **need** for that room, which is how ductless **heat pumps** are sized.

Secondly, what size heat pump do I need for 1600 sq ft? **Sizing** a **Heat Pump** Typical home **sizes** range from 1 1/2- to 5-ton capacity. Though **sizing** a system **should** be handled by a professional, you can get a rough idea of **size** by figuring about 400 **square feet of** living space per ton in older houses, so, a **1,600**-square-**foot** house **would** normally require about a 4-ton system.

Moreover, how many square feet does a 3 ton heat pump cover?

Air Conditioning Square Footage Range by Climate Zone

ZONE 1 | ZONE 2 | |
---|---|---|

2 Tons | 901-1200 sf | 951 - 1250 sf |

2.5 Tons | 1201 - 1500 sf | 1251 - 1550 sf |

3 Tons | 1501 - 1800 sf | 1501 - 1850 sf |

3.5 Tons | 1801 - 2100 sf | 1851 - 2150 sf |

What size heat pump do I need for a 1500 square foot house?

STEP 1: Determine how many BTUs of heating and tons of AC you need

House Square Footage | BTUs Needed |
---|---|

700 – 1,000 | 18,000 |

1,000 – 1,200 | 21,000 |

1,200 – 1,400 | 23,000 |

1,400 – 1,500 | 24,000 |