Top Rated HVAC Experts for heat pump hvac Chalmette, LA. Call +1 800-349-3918. 24 Hour Calls. Guaranteed Services – Low Prices.
What We Do?
Residential
HVAC Service
Are you searching for home heating and cooling services that are focused on total home comfort remedies? The specialists at Keefe's Air Conditioning, Heating, & Electrical sell, install, and also fix HVAC units of all makes and models. Call us today!
Commercial
HVAC Service
Commercial heating and cooling maintenance and repairs are unavoidable. At Keefe's Air Conditioning, Heating, & Electrical, we deliver a comprehensive variety of heating as well as cooling solutions to meet every one of your commercial HVAC installation, replacement, repair work, and routine maintenance needs.
Emergency
HVAC Service
Emergencies may and definitely do happen, when they do, rest assured that our team will be there for you! Keefe's Air Conditioning, Heating, & Electrical is able to provide emergency support at any moment of the day or night. Never hesitate to get in touch with us the second an emergency occurs!


24 Hour Service
We deliver HVAC services 24 hours a day, 7 days a week, 365 days a year. One of our many service options guarantees that your comfort demands are achieved within your time frame and also even your most worrisome heating and air conditioner concerns will be handled today. Your time is precious– and our experts will never keep you waiting!

25 YEARS EXPERIENCE
With over two decades of experience bringing our customer’s total satisfaction, Keefe's Air Conditioning, Heating, & Electrical is a top provider of HVAC services. Serving residential properties and businesses throughout , we perform regular servicing, repair work and new installations tailored to your needs and budget demands.
Testimonials
Contact Us
Keefe’s Air Conditioning, Heating, & Electrical
1919 Enterprise Dr, Harvey, LA 70058, United States
Telephone
+1 800-349-3918
Hours
Open 24 hours
We also provide hvac repair services in the following cities
More About Chalmette, LA
Chalmette (/ʃælˈmɛt/ shall-MET) is a census-designated place (CDP) in, and the parish seat of St. Bernard Parish, in southeast Louisiana, United States.[1] The 2010 census reported that Chalmette had 16,751 people. The 2011 population is listed as 17,119;[2] however, the pre-Katrina population was 32,069 at the 2000 census. The population hence declined by 46% between 2000 and 2010. Chalmette is part of the New Orleans–Metairie–Kenner Metropolitan Statistical Area. Chalmette is located east of downtown New Orleans and south of Arabi, towards Lake Borgne.
The community was named for plantation owner Louis-Xavier Martin de Lino de Chalmette (1720-1755). Chalmette was appended to the family name after acquiring their Louisiana plantation, in honour of Louis-Xavier Martin de Lino’s paternal great-grandmother, Antoinette Chalmette (died 1711)[3] “Chalmette,” in French, means pasture, or fallow land, (and traces to the Proto-Celtic word “kalm”).[citation needed]
Room pressure can be either positive or negative with respect to outside the space. Positive pressure takes place when there is more air being provided than exhausted, and prevails to minimize the infiltration of outside contaminants. Natural ventilation is a key factor in reducing the spread of airborne illnesses such as tuberculosis, the cold, influenza and meningitis.
Natural ventilation requires little maintenance and is low-cost. An a/c system, or a standalone ac system, provides cooling and humidity control for all or part of a structure. Air conditioned buildings typically have actually sealed windows, since open windows would work against the system planned to keep continuous indoor air conditions.
The portion of return air made up of fresh air can usually be controlled by adjusting the opening of this vent. Typical fresh air consumption is about 10%. [] Air conditioning and refrigeration are supplied through the elimination of heat. Heat can be eliminated through radiation, convection, or conduction. Refrigeration conduction media such as water, air, ice, and chemicals are referred to as refrigerants.

It is necessary that the cooling horsepower is enough for the area being cooled. Underpowered cooling system will lead to power waste and ineffective usage. Sufficient horse power is required for any air conditioning system installed. The refrigeration cycle uses four important aspects to cool. The system refrigerant begins its cycle in a gaseous state.
From there it enters a heat exchanger (in some cases called a condensing coil or condenser) where it loses energy (heat) to the outside, cools, and condenses into its liquid phase. An (likewise called metering device) regulates the refrigerant liquid to stream at the correct rate. The liquid refrigerant is gone back to another heat exchanger where it is enabled to vaporize, hence the heat exchanger is frequently called an evaporating coil or evaporator.
In the process, heat is soaked up from indoors and transferred outdoors, leading to cooling of the structure. In variable environments, the system might include a reversing valve that changes from heating in winter to cooling in summer. By reversing the circulation of refrigerant, the heat pump refrigeration cycle is altered from cooling to heating or vice versa.
Free cooling systems can have very high efficiencies, and are sometimes integrated with seasonal thermal energy storage so that the cold of winter season can be used for summertime air conditioning. Common storage mediums are deep aquifers or a natural underground rock mass accessed via a cluster of small-diameter, heat-exchanger-equipped boreholes.
The heat pump is added-in because the storage serves as a heat sink when the system is in cooling (rather than charging) mode, triggering the temperature to slowly increase throughout the cooling season. Some systems include an “economizer mode”, which is often called a “free-cooling mode”. When economizing, the control system will open (completely or partly) the outdoors air damper and close (completely or partly) the return air damper.
When the outside air is cooler than the demanded cool air, this will enable the demand to be fulfilled without using the mechanical supply of cooling (generally chilled water or a direct growth “DX” unit), thus saving energy. The control system can compare the temperature level of the outside air vs.
In both cases, the outside air should be less energetic than the return air for the system to get in the economizer mode. Central, “all-air” air-conditioning systems (or package systems) with a combined outside condenser/evaporator system are frequently set up in North American houses, offices, and public buildings, but are challenging to retrofit (install in a building that was not designed to get it) since of the bulky air ducts required.

An option to packaged systems is the use of different indoor and outdoor coils in split systems. Split systems are preferred and commonly utilized worldwide except in North America. In North America, split systems are most often seen in residential applications, but they are getting popularity in little business buildings.
The advantages of ductless air conditioning systems include easy setup, no ductwork, greater zonal control, flexibility of control and quiet operation. [] In area conditioning, the duct losses can account for 30% of energy intake. Making use of minisplit can lead to energy savings in space conditioning as there are no losses connected with ducting.
Indoor systems with directional vents mount onto walls, suspended from ceilings, or suit the ceiling. Other indoor units mount inside the ceiling cavity, so that short lengths of duct handle air from the indoor unit to vents or diffusers around the spaces. Split systems are more effective and the footprint is generally smaller than the plan systems.
