25,000 BTU heat pump

PerfectAire 25,000 BTU Wall-Mount

Name: PerfectAire 25,000 BTU Wall-Mount
Brand: PerfectAire

Model #: 3PAMSHH24-SZO / 3PAMSCH24

Every spec on this page comes from an official certification record or a cited manufacturer document. The source is linked next to each value.

PerfectAire3PAMSMini-split heat pump

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Check model number 3PAMSHH24-SZO / 3PAMSCH24 at your preferred retailer.

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Same housing as 3PAMSH09B-SZO; small details may differ.

Decision guide

What the published numbers mean before you compare every spec.

25,000 BTU is closest to ENERGY STAR’s 1400–1500 sq. ft. room-size row.

At 5°F, certified output is 25,800 BTU/h — 103% of its 47°F rating.

The cited fields do not confirm a pre-charged line set or DIY-line designation for this model.

Voltage is not published in the sources we cite, so confirm it before choosing equipment.

HSPF2 11.5 is above the 10.0 average among 70 models in the same rounded capacity class.

Your room is near 1400–1500 sq. ft. under the ENERGY STAR starting-point assumptions, and a load calculation agrees.

You have not confirmed the voltage, room load, and installation requirements for this exact model.

Room guidance is a screening estimate for standard conditions. Check your room inputs; use Manual J for final sizing.

Outdoor model number	3PAMSHH24-SZOSource: ENERGY STAR Mini-Split Heat Pumps dataset · 2026-07-23
Indoor model number	3PAMSCH24Source: ENERGY STAR Mini-Split Heat Pumps dataset · 2026-07-23
AHRI reference number	207796635Source: ENERGY STAR Mini-Split Heat Pumps dataset · 2026-07-23
Series	3PAMSSource: ENERGY STAR Mini-Split Heat Pumps dataset · 2026-07-23
Heating capacity at 47F	25,000 BTU/hSource: ENERGY STAR Mini-Split Heat Pumps dataset · 2026-07-23
Heating capacity at 17F	21,000 BTU/hSource: ENERGY STAR Mini-Split Heat Pumps dataset · 2026-07-23
Heating capacity at 5F	25,800 BTU/hSource: ENERGY STAR Mini-Split Heat Pumps dataset · 2026-07-23
SEER2	20.5Source: ENERGY STAR Mini-Split Heat Pumps dataset · 2026-07-23
EER2	11Source: ENERGY STAR Mini-Split Heat Pumps dataset · 2026-07-23
HSPF2	11.5Source: ENERGY STAR Mini-Split Heat Pumps dataset · 2026-07-23

Values marked ENERGY STAR come from the certification dataset; values marked Manufacturer spec come from the linked product documents.

The sources we cite do not publish these values for this model, so we leave them blank rather than guess.

VoltageMinimum circuit ampacityMaximum breaker / fuseLine set length rangePre-charged line setBrand DIY line

Room-size guidance is a starting point, not a load calculation. Confirm sizing and installation requirements with a qualified contractor.