What size room does the Amana K-Series PTAC PTH123K35AXXX 12,000 BTU heat pump cool?

It is rated to cool a room up to 500 sq ft (12,000 BTU · 3.5 kW).

Do I need a professional to install the Amana K-Series PTAC PTH123K35AXXX 12,000 BTU heat pump?

Usually, yes. A PTAC installs in a wall sleeve with an outdoor grille and runs on its own dedicated circuit, so a new installation (the wall opening, sleeve, grille and wiring) is work for a contractor and an electrician. Swapping one into an existing PTAC sleeve with matching power is a simpler like-for-like replacement.

Does the Amana K-Series PTAC PTH123K35AXXX 12,000 BTU heat pump heat as well as cool?

Yes. It is a heat pump that also heats, rated 3.5 kW of heating output.

PTAC Heats too

Amana

K-Series PTAC PTH123K35AXXX 12,000 BTU heat pump

Name: Amana K-Series PTAC PTH123K35AXXX 12,000 BTU heat pump
Brand: Amana

The Amana PTH123K35AXXX is a 12,000 BTU packaged terminal heat pump (PTAC) rated 11.5 EER on R-32, with an 11,000 BTU heat-pump mode and 3.5 kW electric backup. It fits the standard 42 inch PTAC wall sleeve used in hospitality and multifamily.

$1,229

List price

Total Home Supply (J/K series), June 2026. PTAC slides into a permanent wall sleeve; 208/230V with a 20 amp LCDI cord. Backup heater 3.5 kW.

No live retailer for this exact model right now.

The closest PTAC you can buy today:

Friedrich 12,000 BTU ZoneAire Select PTAC w/ Electric Heat - 265VCovers up to 550 sq ft In stock$1,219View

Or look for this exact model on Amazon:

Search Amazon

compare.ac may earn a commission on purchases, at no cost to you. As an Amazon Associate I earn from qualifying purchases.

Will it cool your room?

Room size (assumed)500 sq ft ≈ 46.5 m²

Fits a 500 sq ft room

This unit's cooling matches a 500 sq ft room. Set your room size to check the fit for your space.

Every PTAC side by side: heat, supply and EER

At a glance

Best for hotels, condos, and apartments with a ptac wall sleeve.

Cooling

12,000 BTU

Size

Noise

Install: Wall sleeve and a dedicated circuitPermission: A new wall opening or circuit usually needs a permit

Performance

Cooling capacity: 12,000 BTU · 3.5 kW
Heating capacity: 3.5 kW
Heat source: Heat pump (when wall heat pumps switch to electric heat)
Room coverage: up to 500 sq ft
Energy Star: No
EER: Not published
Annual energy (cooling): Not published

Noise, size & features

Model number: PTH123K35AXXX
Indoor noise: Not published
Outdoor noise: Not published
Indoor unit: 42 in W x 16.06 in H x 14.13 in D
Outdoor unit: None
Refrigerant: R-32
Wi-Fi / app: Not published
Outdoor unit needed: No
Wall sleeve: Fits Amana's 42 x 16 in. PTAC sleeve

Will it fit your wall sleeve?

Uses Amana's 42 x 16-inch wall sleeve (the industry-standard size) with an outdoor grille. Amana does not state which other makers' sleeves it fits, so check an existing sleeve and grille with Amana before you buy. Source: Amana PTAC wall sleeve page

Every through-the-wall AC and PTAC by the sleeve it fits

What is good

Packaged terminal heat pump with 11.5 EER and 3.5 kW electric backup heat
Newer low-GWP R-32 refrigerant in the current K-series
Standard PTAC chassis (42 inch sleeve) common in hotels and apartments

What to watch

No WiFi; uses a wall thermostat or onboard controls
Requires a 208/230V wall sleeve and a 20 amp dedicated circuit
Louder and less efficient than a ductless mini-split

Installation & the rules that apply

This is a packaged terminal air conditioner (PTAC). It sits in a wall sleeve with an outdoor grille and runs on its own circuit, so the window-unit mounting and bracket rules do not apply to it. A new opening or circuit usually needs building and electrical permits and, in a condo, co-op or historic building, approval first.

Installation

Wall sleeve and a dedicated circuit

Refrigerant

R-32

GeneralRenters: get written landlord consent firstReviewed June 2026Often blocks install

GeneralCondo / HOA: exterior changes need approvalReviewed June 2026Permit required

GeneralHistoric / listed buildings: consent before any exterior unitReviewed June 2026Permit required

MassachusettsMassachusetts: local historic district approval (MGL c.40C)Reviewed June 2026Permit required

United StatesUS: local mechanical and electrical permits (vary by city)Reviewed June 2026Permit required

See full rules by region

Common questions about the Amana K-Series PTAC PTH123K35AXXX 12,000 BTU heat pump

What size room does the Amana K-Series PTAC PTH123K35AXXX 12,000 BTU heat pump cool?: It is rated to cool a room up to 500 sq ft (12,000 BTU · 3.5 kW).
Do I need a professional to install the Amana K-Series PTAC PTH123K35AXXX 12,000 BTU heat pump?: Usually, yes. A PTAC installs in a wall sleeve with an outdoor grille and runs on its own dedicated circuit, so a new installation (the wall opening, sleeve, grille and wiring) is work for a contractor and an electrician. Swapping one into an existing PTAC sleeve with matching power is a simpler like-for-like replacement.
Does the Amana K-Series PTAC PTH123K35AXXX 12,000 BTU heat pump heat as well as cool?: Yes. It is a heat pump that also heats, rated 3.5 kW of heating output.