Top HVAC Experts for hvac courses Gretna, LA. Dial +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 complete home comfort remedies? The professionals at Keefe's Air Conditioning, Heating, & Electrical sell, install, and fix HVAC units of all makes and models. Get in touch with us today!
Commercial
HVAC Service
Commercial heating and cooling repairs are unavoidable. At Keefe's Air Conditioning, Heating, & Electrical, we supply a comprehensive variety of heating as well as cooling solutions to meet all of your commercial HVAC installation, replacement, repair, and servicing demands.
Emergency
HVAC Service
Emergencies may and do happen, when they do, rest assured that our experts will be there for you! Keefe's Air Conditioning, Heating, & Electrical can easily provide emergency services at any time of the day or night. Never hesitate to call 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. Among our various service options ensures that your comfort requirements are fulfilled within your timespan and that even your most worrisome heating or air conditioner issues will be handled today. Your time is precious– and our company will never keep you waiting!
25 YEARS EXPERIENCE
With over two decades of experience bringing our customer’s complete satisfaction, Keefe's Air Conditioning, Heating, & Electrical is a leading provider of HVAC services. Serving homes and businesses within , we complete regular maintenance, repairs 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 Gretna, LA
Gretna is the second-largest city in, and parish seat of, Jefferson Parish, Louisiana, United States.[4][5] Gretna lies on the west bank of the Mississippi River, just east and across the river from uptown New Orleans. It is part of the New Orleans–Metairie–Kenner Metropolitan Statistical Area. The population was 17,736 at the 2010 census.[6]
Gretna is located at 29°54′59″N 90°3′15″W / 29.91639°N 90.05417°W / 29.91639; -90.05417 (29.916459, -90.054260)[7] and has an elevation of 0 feet (0 m)[1]
behind the levee along the Mississippi River.
Space pressure can be either positive or negative with regard to outside the room. Positive pressure happens when there is more air being supplied than exhausted, and is typical to decrease the infiltration of outside contaminants. Natural ventilation is a key factor in minimizing the spread of airborne health problems such as tuberculosis, the typical cold, influenza and meningitis.
Natural ventilation needs little maintenance and is affordable. An a/c system, or a standalone a/c, provides cooling and humidity control for all or part of a building. Air conditioned structures frequently have sealed windows, due to the fact that open windows would work versus the system meant to maintain constant indoor air conditions.
The portion of return air made up of fresh air can normally be controlled by adjusting the opening of this vent. Common fresh air intake is about 10%. [] Cooling and refrigeration are offered through the removal of heat. Heat can be gotten rid of through radiation, convection, or conduction. Refrigeration conduction media such as water, air, ice, and chemicals are described as refrigerants.
It is crucial that the a/c horsepower is sufficient for the location being cooled. Underpowered cooling system will lead to power waste and inefficient use. Adequate horse power is needed for any air conditioner installed. The refrigeration cycle uses four necessary components 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 stage. An (also called metering gadget) regulates the refrigerant liquid to stream at the proper rate. The liquid refrigerant is gone back to another heat exchanger where it is permitted to evaporate, hence the heat exchanger is often called an evaporating coil or evaporator.
At the same time, heat is absorbed from indoors and moved outdoors, leading to cooling of the building. In variable climates, the system may include a reversing valve that switches from heating in winter to cooling in summer. By reversing the flow of refrigerant, the heatpump refrigeration cycle is altered 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 used for summer season air conditioning. Typical storage mediums are deep aquifers or a natural underground rock mass accessed through 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 remains in cooling (rather than charging) mode, triggering the temperature to slowly increase during the cooling season. Some systems consist of an “economizer mode”, which is sometimes called a “free-cooling mode”. When saving money, the control system will open (fully or partially) the outside air damper and close (completely or partially) the return air damper.
When the outdoors air is cooler than the required cool air, this will allow the demand to be fulfilled without utilizing the mechanical supply of cooling (normally chilled water or a direct growth “DX” system), hence conserving energy. The control system can compare the temperature level of the outside air vs.
In both cases, the outdoors air needs to be less energetic than the return air for the system to get in the economizer mode. Central, “all-air” air-conditioning systems (or plan systems) with a combined outdoor condenser/evaporator system are often installed in North American houses, offices, and public structures, but are difficult to retrofit (install in a building that was not developed to receive it) since of the bulky air ducts needed.
An option to packaged systems is using separate indoor and outdoor coils in split systems. Split systems are chosen and widely used around the world except in North America. In The United States and Canada, split systems are most often seen in domestic applications, but they are getting appeal in little industrial structures.
The advantages of ductless cooling systems consist of simple setup, no ductwork, greater zonal control, versatility of control and peaceful operation. [] In space conditioning, the duct losses can account for 30% of energy usage. Using minisplit can result in energy cost savings in area conditioning as there are no losses associated with ducting.
Indoor systems with directional vents install onto walls, suspended from ceilings, or fit into the ceiling. Other indoor systems install inside the ceiling cavity, so that brief lengths of duct handle air from the indoor unit to vents or diffusers around the spaces. Split systems are more efficient and the footprint is generally smaller sized than the bundle systems.