Yes, it is a “hole in the wall”, but so is a window. So, if installed properly, the added heat loss is about like a 26″ x 14″ window. A small, superinsulated house is a perfect application since the output of a PTHP is 12,000 btuh, and that should match the house pretty well.

What is a PTHP?

Packaged Terminal Air Conditioners (PTAC) and Packaged Terminal Heat Pumps (PTHP) are ductless, convenient, all-in-one heating and cooling solutions for commercial spaces. PTACs are through-the-wall air conditioners.

How does a PTHP work?





PTHPs are single packaged units installed in metal sleeves typically located below windows in living spaces and bedrooms. During the summer, the unit operates as an air conditioner, cooling the indoor air by transferring heat to the outdoors.

Is a PTAC unit a heat pump?

Essentially, a PTAC unit is a self-contained heat pump version of your central air conditioning system. It includes a heat pump, evaporator coils and air handler, all packaged together in a handsome steel cabinet.

What is the difference between PTAC and PTHP?

PTAC models are offered with electric resistance heat, while PTHPs offer heat pump heating along with back-up electric resistance heat. Both models provide air conditioning, but only PTHP models offer the efficiency of heating in heat pump mode.

What is Psz in HVAC?

(PSZ-AC). The description of PSZ-AC says, “Packaged rooftop air. conditioner“. I assume that this means a single unit serving multiple. zones.

How does a packaged terminal air conditioner work?





PTACs are a type of self-contained heating and air-conditioning system. They use electricity to push a refrigerant through the unit and take heat and humidity out through a vent. Typically, they’re set inside a window or close to a concrete wall.

What kind of air conditioners do hotels use?

PTAC, or packaged terminal air conditioners, are the most common heating and cooling solution for hotels, motels, assisted living, dorms, and more.

How do hotel AC units work?

Packaged Terminal Air Conditioners (PTAC)

Hotels use these self-contained A/C units for individual rooms. PTAC units are usually installed below the window or against a wall and typically do not use outside air to cool or heat the room. This means that standard PTAC units only recycle air from within the room.

How efficient is a PTAC unit?



The most efficient PTACs have an energy efficiency ratio (EER) of around 12 in cooling mode, while there are mini-split units with an EER above 15. In this case, you can expect electricity savings of over 30% with the mini-split.

What is the difference between a PTAC and mini split?

PTAC units have a connection to outside air, which means they can provide ventilation as well as heating and cooling. Mini-splits, in contrast, have no fresh air access and separate ventilation will be required to meet code standards.

Is PTACs energy-efficient?

PTAC units are the best option for energy-efficient, cost-effective climate control. Including both heating and cooling, they can help you save as much as 20 percent on your annual utility costs.

Does PTACs use outside air?



The PTAC pulls air directly from outside through the unit via a vent in the back. Some models also have a dehumidifier built in that removes moisture from the outside air. The most common method, however, is recirculating inside air through a refrigerant, which is also the most efficient method.

Are all PTACs the same size?

PTAC units typically come in 15, 20 or 30 amps. There are two common sizes of PTAC units: 230-volt PTAC units require 208/240 volt single phase power. 265-volt PTAC units require 265/277 volt single phase power.

How many BTUs do I need?

Size and Ceiling Height

Area To Be Cooled (square feet) Capacity Needed (BTUs per hour)
100 to 150 5,000
150 to 250 6,000
250 to 300 7,000
300 to 350 8,000

Do they make 7000 BTU air conditioner?

HOMCOM 7000 BTU Portable Mobile Air Conditioner for Cooling, Dehumidifying, and Ventilating with Remote Control, White.

How many BTUs does it take to heat a house?



Heating BTUs Table (Rough Estimates)

Home Size (Heating): Standard Climate Very Hot Climate
1,000 square feet 45,000 BTU 30,000 BTU
1,500 square feet 67,500 BTU 45,000 BTU
2,000 square feet 90,000 BTU 60,000 BTU
2,500 square feet 112,500 BTU 75,000 BTU

How many BTUs is a ton?

12,000 BTUh

One ton of cooling capacity equates to 12,000 BTUh.

What does tonnage mean in HVAC?

A ton, as used in the HVAC field, is a term that describes how much heat the AC unit can remove from a home in one hour. The measurement for heat is the British thermal unit (BTU). One ton of air conditioning can remove 12,000 BTUs of air per hour. A four ton unit can move 48, 000 BTUs and so on.

How many BTUs is a 2 ton air conditioner?



24,000 BTUs

A two-ton air conditioner removes 24,000 BTUs per hour. When an air conditioner is listed by BTUs rather than by tonnage, it’s usually referring to BTUs per hour, so the two measures are directly comparable if you multiply or divide by 12.