Best HVAC Pros for hvac air purifier Chalmette, LA. Call +1 800-349-3918. 24 Hour Calls. Guaranteed Services – Low Prices.
What We Do?
Residential
HVAC Service
Are you looking for home heating or cooling support services that are focused on complete home comfort solutions? The professionals at Keefe's Air Conditioning, Heating, & Electrical sell, install, as well as repair HVAC units of all makes and models. Call us today!
Commercial
HVAC Service
Commercial heating and cooling repairs are unavoidable. At Keefe's Air Conditioning, Heating, & Electrical, we provide an extensive variety of heating as well as cooling support services to meet all of your commercial HVAC installation, replacement, repair, and servicing needs.
Emergency
HVAC Service
Emergencies will and definitely do develop, and when they do, rest assured that our team will be there for you! Keefe's Air Conditioning, Heating, & Electrical can easily provide emergency services at any time of the day or night. Don’t hesitate to call us the second an emergency occurs!


24 Hour Service
We offer HVAC services 24 hours a day, 7 days a week, 365 days a year. One of our countless service options ensures that your comfort needs are achieved within your timespan and also even your most worrisome heating and air conditioner problems will be resolved today. Your time is precious– and our experts 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 premier provider of HVAC services. Serving residential properties and businesses within , we complete regular servicing, repair work and new installations modified to your needs and budget guidelines.
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 regard to outside the room. Favorable pressure occurs when there is more air being supplied than tired, and is common to reduce the seepage of outdoors pollutants. Natural ventilation is an essential consider reducing the spread of air-borne health problems such as tuberculosis, the typical cold, influenza and meningitis.
Natural ventilation needs little maintenance and is economical. An air conditioning system, or a standalone air conditioning system, provides cooling and humidity control for all or part of a building. Air conditioned buildings often have sealed windows, since open windows would work versus the system intended to keep constant indoor air conditions.
The percentage of return air comprised of fresh air can usually be controlled by changing the opening of this vent. Normal fresh air consumption is about 10%. [] A/c and refrigeration are provided through the removal 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 imperative that the cooling horse power is sufficient for the area being cooled. Underpowered air conditioning system will cause power waste and inefficient usage. Adequate horse power is needed for any air conditioning unit set up. The refrigeration cycle uses four vital components 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 stage. An (also called metering gadget) regulates the refrigerant liquid to stream at the appropriate rate. The liquid refrigerant is gone back to another heat exchanger where it is enabled to vaporize, thus the heat exchanger is frequently called an evaporating coil or evaporator.
In the process, heat is soaked up from inside and moved outdoors, resulting in cooling of the building. In variable climates, the system might consist of a reversing valve that switches from heating in winter 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 efficiencies, and are often integrated with seasonal thermal energy storage so that the cold of winter can be used for summer season cooling. Common storage mediums are deep aquifers or a natural underground rock mass accessed via a cluster of small-diameter, heat-exchanger-equipped boreholes.
The heatpump is added-in since the storage acts as a heat sink when the system is in cooling (rather than charging) mode, triggering the temperature level 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 outside air is cooler than the required cool air, this will permit the demand to be fulfilled without using the mechanical supply of cooling (normally chilled water or a direct growth “DX” system), therefore conserving energy. The control system can compare the temperature level of the outside air vs.
In both cases, the outside air needs to be less energetic than the return air for the system to enter the economizer mode. Central, “all-air” air-conditioning systems (or bundle systems) with a combined outside condenser/evaporator unit are often set up in North American homes, workplaces, and public buildings, however are hard to retrofit (set up in a building that was not designed to get it) since of the large air ducts needed.

An option to packaged systems is using different indoor and outside coils in split systems. Split systems are chosen and extensively utilized worldwide except in The United States and Canada. In The United States and Canada, divided systems are usually seen in property applications, however they are gaining appeal in small business buildings.
The benefits of ductless a/c systems include simple installation, no ductwork, higher zonal control, versatility of control and peaceful operation. [] In area conditioning, the duct losses can account for 30% of energy usage. Using minisplit can result in energy cost savings in space conditioning as there are no losses associated with ducting.
Indoor systems with directional vents install onto walls, suspended from ceilings, or suit 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 spaces. Split systems are more efficient and the footprint is usually smaller sized than the plan systems.
