Best Heating & Cooling Experts for hvac courses Marrero, LA. Phone +1 800-349-3918. 24 Hour Calls. Guaranteed Services – Low Prices.
What We Do?
Residential
HVAC Service
Are you searching for home heating or cooling services that are centered on complete home comfort remedies? The specialists at Keefe's Air Conditioning, Heating, & Electrical sell, install, as well as repair HVAC systems 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 an extensive array of heating as well as cooling solutions to meet every one of your commercial HVAC installation, replacement, repair, and servicing needs.
Emergency
HVAC Service
Emergencies may and do occur, when they do, rest comfortably that our experts will be there for you! Keefe's Air Conditioning, Heating, & Electrical can easily offer emergency assistance at any moment of the day or night. Don’t hesitate to contact us the minute an emergency happens!


24 Hour Service
We offer HVAC services 24 hours a day, 7 days a week, 365 days a year. Among our various service options guarantees that your comfort needs are met within your time frame and that even your most worrisome heating and air conditioner issues will be resolved today. Your time is precious– and our team will not 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 homes and businesses within , we perform regular servicing, repairs and also 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 Marrero, LA
Marrero is a census-designated place (CDP) in Jefferson Parish, Louisiana, United States. Marrero is on the south side (referred to as the “West Bank”) of the Mississippi River, within the New Orleans–Metairie–Kenner Metropolitan Statistical Area. The population was 33,141 at the 2010 census.[1]
Marrero was named in honor of the Louisiana politician and founder of Marrero Land Company, Louis H. Marrero. The area was originally referred to and shown on maps as “Amesville”, after the Boston businessman Oakes Ames, who purchased much of the land following the Civil War. In February 1916, the U.S. Postmaster officially changed the name of the Post Office to “Marrero”.[2]
Room pressure can be either favorable or negative with regard to outside the space. Positive pressure happens when there is more air being supplied than exhausted, and prevails to decrease the infiltration of outdoors contaminants. Natural ventilation is a crucial factor in decreasing the spread of air-borne diseases such as tuberculosis, the common cold, influenza and meningitis.
Natural ventilation needs little maintenance and is low-cost. A cooling system, or a standalone ac system, offers cooling and humidity control for all or part of a structure. Air conditioned buildings frequently have actually sealed windows, because open windows would work versus the system planned to maintain consistent indoor air conditions.
The percentage of return air made up of fresh air can normally be manipulated by changing the opening of this vent. Normal fresh air consumption is about 10%. [] A/c and refrigeration are offered through the elimination of heat. Heat can be removed through radiation, convection, or conduction. Refrigeration conduction media such as water, air, ice, and chemicals are described as refrigerants.

It is important that the cooling horsepower is adequate for the location being cooled. Underpowered air conditioning system will cause power wastage and inefficient use. Appropriate horsepower is needed for any air conditioner set up. The refrigeration cycle uses four essential elements to cool. The system refrigerant starts its cycle in a gaseous state.
From there it gets in a heat exchanger (often 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) controls the refrigerant liquid to flow at the correct rate. The liquid refrigerant is gone back to another heat exchanger where it is permitted to vaporize, hence the heat exchanger is frequently called an evaporating coil or evaporator.
In the procedure, heat is taken in from inside your home and transferred outdoors, resulting in cooling of the building. In variable environments, the system might consist of a reversing valve that changes from heating in winter to cooling in summertime. By reversing the circulation of refrigerant, the heat pump refrigeration cycle is changed from cooling to heating or vice versa.
Free cooling systems can have very high performances, and are sometimes combined with seasonal thermal energy storage so that the cold of winter can be utilized for summertime a/c. 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 since the storage functions as a heat sink when the system is in cooling (instead of charging) mode, causing the temperature level to slowly increase throughout the cooling season. Some systems consist of an “economizer mode”, which is sometimes called a “free-cooling mode”. When economizing, the control system will open (totally or partly) the outside air damper and close (fully or partly) the return air damper.
When the outdoors air is cooler than the required cool air, this will permit the demand to be fulfilled without utilizing the mechanical supply of cooling (normally cooled water or a direct expansion “DX” unit), hence saving energy. The control system can compare the temperature level of the outside air vs.
In both cases, the outside air must be less energetic than the return air for the system to enter the economizer mode. Central, “all-air” air-conditioning systems (or plan systems) with a combined outdoor condenser/evaporator unit are frequently set up in North American residences, workplaces, and public structures, but are difficult to retrofit (set up in a structure that was not designed to receive it) due to the fact that of the large air ducts needed.

An alternative to packaged systems is the usage of different indoor and outside coils in split systems. Split systems are chosen and commonly used worldwide other than in The United States and Canada. In The United States and Canada, split systems are most often seen in residential applications, but they are acquiring appeal in little industrial structures.
The benefits of ductless a/c systems include simple setup, no ductwork, greater zonal control, versatility of control and quiet operation. [] In area conditioning, the duct losses can account for 30% of energy intake. Using minisplit can lead to energy savings in space conditioning as there are no losses associated with ducting.
Indoor units with directional vents mount onto walls, suspended from ceilings, or fit into the ceiling. Other indoor units mount inside the ceiling cavity, so that short lengths of duct deal with air from the indoor unit to vents or diffusers around the spaces. Split systems are more efficient and the footprint is typically smaller than the plan systems.
