(718) 993-4000 Mon - Fri 9:00am - 5:00pm
287 Walton Avenue Bronx, New York 10451
(718) 993-4000 Mon - Fri 9:00am - 5:00pm
287 Walton Avenue Bronx, New York 10451
Experienced Staff
With 110 Years of History
Loaner Program
for contract customers
Warranty Program
100% covered for 1 year
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Through-the-Wall HVAC Installation in Manhattan

Through-the-Wall HVAC Installation

We can help you design the perfect through-the-wall HVAC. Whether it’s as complex as hardware modifications or as simple as a remote thermostat, we customize every unit to best suit each client’s specific needs.

Every homeowner in New York City knows how difficult it can be to complete renovations of any kind. Unexpected roadblocks lie around every corner, causing unwanted delays and agitation. But Stanley Ruth is the most trusted name New York when it comes to HVAC installation. We have a proven track record of success when it comes to navigating the complex web of building regulations that come with home renovation in Manhattan.

  • A free install survey—we review onsite conditions, gather information on building standards and city codes, assess client’s budget and preferences
  • A detailed installation plan is written and submitted 2-3 business days after the initial survey to be reviewed by co-op boards, building managers or supers for approval
  • A 2-3 week turnaround time after approval ensures our work aligns with our clients’ schedule
  • Installations take between 1-3 days
  • Comes with a 1-year warranty covering all parts, labor and service visits

Get comfortable. Stay comfortable.

Stanley Ruth’s priority has always been the sustained comfort of our clients. Our work doesn’t just end when our technicians leave your home–it continues as your through-the-wall HVAC system functions properly, out of sight and out of mind.

Through the Wall Functionality

Air conditioners can be installed in a wall, as opposed to in a window.  An exterior wall has one face to the outside of a home and one face inside the home.  Through-the-wall air conditioning units fit through a hole in the exterior wall, using a sleeve that supports the weight of the unit, to cool a single room in the home.

Through-the-wall air conditioners function by exhausting heat and humidity from the room to the outside as a single, self-contained unit.  The air maneuvers through coils in the unit, which is then cooled by the compressor component using refrigerant, that transitions from a low-pressure gas to a high-pressure liquid as it distributes cold air into a room in a cycle. 

Choosing a through-the-wall air conditioner

When it comes to choosing a through-the-wall air conditioner, there are three important things to keep in mind. 

First, customers need to figure out the thickness of the exterior wall, which narrows down the types of air conditioners they can purchase. 

Second, customers need to properly consider BTUs (British Thermal Units) contained by the unit for their room based on the fact that oversized units cause cold air to bounce off the wall back onto itself, interfering with the thermostat and compressor, and create 2-3 minute on/off compressor cycles not long enough to effectively cool a room.  It is recommended that for a 165 Sq. Ft. room, for instance, up to 5,200 BTUs are required; a 500 Sq. Ft. room, on the other hand, requires up to 10,000 BTUs; and a 1,500 Sq. Ft. room requires between 22,000-25000 BTUs.

Third, customers need to consider plug type in the room: either voltage or amperage.  Many air conditioning units come with 125V/15A plugs that can be used in most rooms.  However, some larger units require more than 125V/15A so customers have to consult an electrician to upgrade the circuitry in their rooms.

Pros and Cons

Through-the-wall air conditioning units are energy-efficient, inexpensive, offer a large range of capabilities, and save customers precious window space.  On the other hand, the units do not cool a whole home, (tough corners are hard to reach), have to be maintained more than once a year, and requires professional installation for creating a hole in an exterior wall. 


The sleeve is the device that holds the air conditioner in the wall.  There are two types of sleeves: a slide-out chassis sleeve, or a through-the-wall sleeve. Slide-out chassis air conditioning units are ideal for walls 8in thick or less.  They vent through the sides and back. Slide-out chassis units include both the air conditioner as well as the sleeve.  If replacement is required, customers need to buy replacement models that fit exactly into that particular slide-out chassis sleeve. Through-the-wall sleeves are purchased separately from the unit, and they come with a grille.  The units vent through the rear. For replacements, customers can purchase any rear venting, or through-the-wall, air conditioner that fits into the existing through-the-wall sleeve.

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