OLMO 9,000 BTU PTAC

Last updated: November 3, 2026

OLMO 9,000 BTU PTAC
3.2/5#4 of 10 in 7,000 to 9,000 BTU PTAC units
3.2

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.

  • 9,000 BTUCooling
  • Electric heatHeat
  • 1 yearWarranty
Check price at Amazon$739.97

Price checked November 3, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros
  • The lowest price at its size
  • WiFi smart kit and remote come in the box
Cons
  • Heats with the electric strip only, which costs far more to run than a heat pump
  • One year warranty, the shortest here
  • OLMO publishes no EER, so cooling cost is unknown

The OLMO PTAC family

Every OLMO PTAC model we rank, smallest first. Ratings compare each against its own size.

ModelCoolingRatingPrice
OLMO 9,000 BTU PTAC (this one)9,000 BTU3.2/5$739.97
OLMO 12,000 BTU PTAC12,000 BTU3.2/5$829.97

How it scores

The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.

Specifications

Model numberOS-MBW-09HS
Cooling
Cooling at 230V9,000 BTU
Federal minimum EER11.3
Inverter compressorNo
RefrigerantR-32
Heating
Heat typeElectric heat
Electric heater3.5 kW
Controls and install
Phone appYes
Remote includedYes
Sleeve and grille includedNo
Voltage208/230 V
Warranty1 year

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