Best HVAC Pros for cost of new hvac system Chalmette, LA. Phone +1 800-349-3918. 24 Hour Calls. Guaranteed Services – Low Prices.
What We Do?
Residential
HVAC Service
Are you looking for residential heating and cooling services that are centered on total home comfort solutions? The specialists at Keefe's Air Conditioning, Heating, & Electrical sell, install, and also fix HVAC units of all makes and models. Get in touch with us today!
Commercial
HVAC Service
Commercial cooling and heating maintenance and repairs are unavoidable. At Keefe's Air Conditioning, Heating, & Electrical, we supply an extensive range of heating as well as cooling support services to meet every one of your commercial HVAC installation, replacement, repair work, and routine maintenance needs.
Emergency
HVAC Service
Emergencies can and definitely do happen, and when they do, rest assured that we will will be there for you! Keefe's Air Conditioning, Heating, & Electrical can supply emergency services at any time of the day or night. Don’t hesitate to contact us the moment an emergency happens!


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 ensures that your comfort requirements are achieved within your time frame and also even your most worrisome heating or air conditioner issues will be fixed today. Your time is precious– and our team will never keep you waiting!

25 YEARS EXPERIENCE
With over two decades of experience bringing our client’s total satisfaction, Keefe's Air Conditioning, Heating, & Electrical is a leading provider of HVAC services. Serving homes and businesses throughout , we complete regular maintenance, repair work and new installations customized 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 favorable or unfavorable with regard to outside the room. Positive pressure takes place when there is more air being provided than tired, and prevails to minimize the infiltration of outside pollutants. Natural ventilation is an essential aspect in decreasing the spread of airborne health problems such as tuberculosis, the typical cold, influenza and meningitis.
Natural ventilation requires little maintenance and is inexpensive. An air conditioning system, or a standalone air conditioner, supplies cooling and humidity control for all or part of a structure. Air conditioned buildings frequently have sealed windows, due to the fact that open windows would work versus the system planned to keep constant indoor air conditions.
The percentage of return air comprised of fresh air can typically be manipulated by changing the opening of this vent. Common fresh air intake is about 10%. [] A/c and refrigeration are provided through the removal of heat. Heat can be removed through radiation, convection, or conduction. Refrigeration conduction media such as water, air, ice, and chemicals are referred to as refrigerants.

It is essential that the cooling horse power is sufficient for the location being cooled. Underpowered a/c system will cause power wastage and ineffective usage. Appropriate horse power is required for any ac system installed. The refrigeration cycle uses four important aspects to cool. The system refrigerant starts its cycle in a gaseous state.
From there it enters a heat exchanger (sometimes called a condensing coil or condenser) where it loses energy (heat) to the outside, cools, and condenses into its liquid phase. An (also 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 permitted to evaporate, hence the heat exchanger is frequently called an evaporating coil or evaporator.
At the same time, heat is taken in from indoors and transferred outdoors, leading to cooling of the building. In variable climates, the system may include a reversing valve that changes from heating in winter season to cooling in summer season. By reversing the flow of refrigerant, the heat pump refrigeration cycle is changed from cooling to heating or vice versa.
Free cooling systems can have extremely high effectiveness, and are sometimes integrated with seasonal thermal energy storage so that the cold of winter can be utilized for summertime air conditioning. Typical storage mediums are deep aquifers or a natural underground rock mass accessed by means of a cluster of small-diameter, heat-exchanger-equipped boreholes.
The heat pump is added-in due to the fact that the storage functions as a heat sink when the system remains in cooling (instead of charging) mode, causing the temperature to slowly increase throughout the cooling season. Some systems consist of an “economizer mode”, which is in some cases called a “free-cooling mode”. When economizing, the control system will open (completely or partly) the outside air damper and close (completely or partly) the return air damper.
When the outdoors air is cooler than the required cool air, this will permit the need to be satisfied without using the mechanical supply of cooling (typically chilled water or a direct expansion “DX” system), therefore conserving energy. The control system can compare the temperature of the outside air vs.
In both cases, the outside air must be less energetic than the return air for the system to go into the economizer mode. Central, “all-air” air-conditioning systems (or bundle systems) with a combined outdoor condenser/evaporator system are typically set up in North American homes, offices, and public structures, however are hard to retrofit (set up in a structure that was not created to receive it) due to the fact that of the bulky duct required.

An option to packaged systems is using separate indoor and outside coils in split systems. Split systems are chosen and widely utilized around the world except in North America. In North America, split systems are usually seen in property applications, but they are acquiring appeal in small industrial buildings.
The advantages of ductless cooling systems consist of easy installation, no ductwork, higher zonal control, versatility of control and quiet operation. [] In space conditioning, the duct losses can account for 30% of energy consumption. Using minisplit can result in energy savings in area conditioning as there are no losses related to ducting.
Indoor systems with directional vents install onto walls, suspended from ceilings, or fit into the ceiling. Other indoor units install inside the ceiling cavity, so that short lengths of duct manage air from the indoor unit to vents or diffusers around the rooms. Split systems are more effective and the footprint is normally smaller than the plan systems.
