Find Us At

1919 Enterprise Dr
Harvey, LA 70058

Call Us At

+1 800-349-3918

Business Hours

Open 24 hours

Top Rated HVAC Experts for hvac air purifier Gretna, LA. Call +1 800-349-3918. 24 Hour Calls. Guaranteed Services – Low Prices.

What We Do?

Residential
HVAC Service

Are you searching for residential heating and cooling services that are focused on complete home comfort remedies? The experts at Keefe's Air Conditioning, Heating, & Electrical sell, install, and also repair HVAC systems of all makes and models. Call us today!

Commercial
HVAC Service

Commercial cooling and heating repairs are unavoidable. At Keefe's Air Conditioning, Heating, & Electrical, we deliver an extensive variety of heating as well as cooling services to meet each of your commercial HVAC installation, replacement, repair, and maintenance needs.

Emergency
HVAC Service

Emergencies will and definitely do develop, and when they do, rest assured that we will will be there for you! Keefe's Air Conditioning, Heating, & Electrical can easily deliver emergency support at any time of the day or night. Don’t hesitate to contact us the second an emergency happens!

24 Hour Service

We provide HVAC services 24 hours a day, 7 days a week, 365 days a year. Among our many service options guarantees that your comfort requirements are achieved within your time frame and also even your trickiest heating and air conditioner issues will be resolved today. Your time is valuable– 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 residential properties and businesses in , we perform routine servicing, repairs and new installations customized to your needs and budget demands.

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Keefe’s Air Conditioning, Heating, & Electrical

1919 Enterprise Dr, Harvey, LA 70058, United States

Telephone

+1 800-349-3918

Hours

Open 24 hours

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.

Room pressure can be either positive or unfavorable with respect to outside the space. Positive pressure happens when there is more air being provided than exhausted, and prevails to minimize the seepage of outdoors pollutants. Natural ventilation is an essential aspect in minimizing the spread of air-borne health problems such as tuberculosis, the acute rhinitis, influenza and meningitis.

Natural ventilation needs little maintenance and is economical. An a/c system, or a standalone air conditioning system, offers cooling and humidity control for all or part of a building. Air conditioned buildings frequently have sealed windows, due to the fact that open windows would work against the system meant to preserve continuous indoor air conditions.

The portion of return air comprised of fresh air can typically be manipulated by adjusting the opening of this vent. Common fresh air consumption is about 10%. [] A/c and refrigeration are offered 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 described as refrigerants.

It is vital that the cooling horsepower is adequate for the location being cooled. Underpowered cooling system will result in power waste and inefficient usage. Sufficient horsepower is needed for any a/c unit set up. The refrigeration cycle uses four vital 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 outdoors, cools, and condenses into its liquid stage. An (likewise called metering device) regulates the refrigerant liquid to flow at the correct rate. The liquid refrigerant is gone back to another heat exchanger where it is allowed to evaporate, thus the heat exchanger is often called an evaporating coil or evaporator.

In the procedure, heat is taken in from inside your home and transferred outdoors, leading to cooling of the structure. In variable climates, the system might consist of a reversing valve that switches from heating in winter season to cooling in summer. By reversing the flow of refrigerant, the heatpump refrigeration cycle is changed from cooling to heating or vice versa.

Free cooling systems can have extremely high effectiveness, and are often integrated with seasonal thermal energy storage so that the cold of winter can be utilized for summer season a/c. Common 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 because the storage serves as a heat sink when the system remains in cooling (instead of charging) mode, causing the temperature to slowly increase during 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 (fully or partly) the return air damper.

When the outside air is cooler than the demanded cool air, this will enable the demand to be met without using the mechanical supply of cooling (generally cooled water or a direct growth “DX” unit), therefore conserving energy. The control system can compare the temperature of the outdoors air vs.

In both cases, the outside air should be less energetic than the return air for the system to enter the economizer mode. Central, “all-air” air-conditioning systems (or package systems) with a combined outdoor condenser/evaporator unit are typically set up in North American residences, offices, and public buildings, but are tough to retrofit (install in a structure that was not created to get it) because of the bulky duct required.

An alternative to packaged systems is using different indoor and outside coils in split systems. Split systems are chosen and extensively utilized around the world except in North America. In North America, divided systems are frequently seen in residential applications, however they are getting appeal in small industrial structures.

The benefits of ductless air conditioning systems include simple setup, no ductwork, greater zonal control, versatility of control and peaceful operation. [] In area conditioning, the duct losses can account for 30% of energy consumption. Making use of minisplit can lead to energy cost savings in space conditioning as there are no losses connected with 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 brief lengths of duct manage air from the indoor system to vents or diffusers around the rooms. Split systems are more efficient and the footprint is normally smaller sized than the package systems.

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