The most efficient PTAC at its size here, for rooms used most of the year where running cost matters. Register it for the compressor warranty.
Amazon $1,149The ACiQ 9,000 BTU Inverter PTAC is the better PTAC unit overall, rated 3.9 to 3.2. The ACiQ 9,000 BTU Inverter PTAC leads on heating. The OLMO 9,000 BTU PTAC wins on value and features. The OLMO 9,000 BTU PTAC costs $409.03 less ($739.97 vs $1,149).
The cheapest way into a standard sleeve, for a room that mostly needs cooling. The one year warranty and strip heat make it a short-term buy.
Amazon $739.97Prices were last checked November 3, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the ACiQ 9,000 BTU Inverter PTAC for heating (heat pump, 4 COP vs electric strip heat only, no heat pump).
- Choose the OLMO 9,000 BTU PTAC for value ($82.22 per 1,000 BTU ($739.97, 9,000 BTU) vs $127.67 per 1,000 BTU ($1,149, 9,000 BTU)) and features (phone app, remote vs remote, inverter compressor).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 7,000 to 9,000 BTU PTAC unit; a clear win is highlighted. How we rank explains each one.
| Factor weight | ACiQ 9,000 BTU Inverter PTAC | OLMO 9,000 BTU PTAC |
|---|---|---|
| Overall rating | 3.9/5 | 3.2/5 |
| Value 30% | 46 $127.67 per 1,000 BTU ($1,149, 9,000 BTU) | 100 $82.22 per 1,000 BTU ($739.97, 9,000 BTU) |
| Efficiency 25% | 100 13.5 EER, 19.5% above the 11.3 federal minimum | 50 EER not published (neutral score used) |
| Heating 15% | 100 heat pump, 4 COP | 0 electric strip heat only, no heat pump |
| Features 10% | 45 remote, inverter compressor | 70 phone app, remote |
| Warranty 20% | 50 1-year parts, 7-year compressor or sealed system | 0 1-year warranty, parts coverage not stated, scored as 1 year |
Specifications
| ACiQ 9,000 BTU Inverter PTAC | OLMO 9,000 BTU PTAC | |
|---|---|---|
| Cooling | ||
| Cooling at 230V | 9,000 BTU | 9,000 BTU |
| EER | 13.5 | - |
| Federal minimum EER | 11.3 | 11.3 |
| Inverter compressor | Yes | No |
| Refrigerant | R-32 | R-32 |
| Heating | ||
| Heat type | Heat pump | Electric heat |
| Heat pump heating | 9,000 BTU | - |
| Heat pump COP | 4 | - |
| Electric heater | 3.5 kW | 3.5 kW |
| Controls and install | ||
| Phone app | - | Yes |
| Remote included | Yes | Yes |
| Sleeve and grille included | - | No |
| Indoor noise, high fan | 46 dB(A) | - |
| Voltage | 208/230 V | 208/230 V |
| Warranty | 1 year parts, 7 years compressor | 1 year |
