Best Heating & Cooling Experts for cost to replace hvac Gretna, LA. Call +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 support services that are focused on total home comfort solutions? The experts at Keefe's Air Conditioning, Heating, & Electrical sell, install, and fix HVAC units of all makes and models. Call us today!
Commercial
HVAC Service
Commercial heating and cooling repairs are inevitable. At Keefe's Air Conditioning, Heating, & Electrical, we supply a comprehensive variety of heating as well as cooling support services to meet every one of your commercial HVAC installation, replacement, repair work, and maintenance demands.
Emergency
HVAC Service
Emergencies can and definitely do happen, when they do, rest comfortably that we will will be there for you! Keefe's Air Conditioning, Heating, & Electrical can easily provide emergency assistance at any moment of the day or night. Don’t hesitate to get in touch with us the minute an emergency occurs!


24 Hour Service
We offer HVAC services 24 hours a day, 7 days a week, 365 days a year. Among our many service options ensures that your comfort demands are satisfied within your time frame and also even your trickiest heating and air conditioner issues will be fixed today. Your time is valuable– and our experts will not 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 top provider of HVAC services. Serving residential properties and businesses within , we perform regular servicing, repairs and also new installations tailored 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 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.
Several inventions within this time frame preceded the starts of very first comfort cooling system, which was developed in 1902 by Alfred Wolff (Cooper, 2003) for the New York Stock Exchange, while Willis Provider equipped the Sacketts-Wilhems Printing Business with the process A/C unit the exact same year. Coyne College was the very first school to provide HVAC training in 1899.
Heating units are home appliances whose function is to produce heat (i.e. warmth) for the building. This can be done via main heating. Such a system consists of a boiler, heater, or heatpump to heat water, steam, or air in a central place such as a furnace space in a home, or a mechanical space in a big structure.

Heaters exist for numerous kinds of fuel, consisting of strong fuels, liquids, and gases. Another type of heat source is electrical power, typically warming ribbons composed of high resistance wire (see Nichrome). This principle is likewise utilized for baseboard heating systems and portable heaters. Electrical heating units are frequently used as backup or extra heat for heat pump systems.
Heatpump can draw out heat from various sources, such as ecological air, exhaust air from a building, or from the ground. Heat pumps move heat from outside the structure into the air within. Initially, heatpump A/C systems were just utilized in moderate environments, however with enhancements in low temperature operation and reduced loads due to more efficient houses, they are increasing in appeal in cooler environments.


Most modern-day warm water boiler heating unit have a circulator, which is a pump, to move warm water through the distribution system (as opposed to older gravity-fed systems). The heat can be moved to the surrounding air using radiators, hot water coils (hydro-air), or other heat exchangers. The radiators may be installed on walls or set up within the flooring to produce floor heat.
The heated water can likewise provide an auxiliary heat exchanger to supply warm water for bathing and washing. Warm air systems distribute heated air through duct systems of supply and return air through metal or fiberglass ducts. Many systems use the same ducts to disperse air cooled by an evaporator coil for air conditioning.
Incomplete combustion happens when there is insufficient oxygen; the inputs are fuels containing various pollutants and the outputs are harmful byproducts, many precariously carbon monoxide gas, which is an unappetizing and odorless gas with severe adverse health results. Without correct ventilation, carbon monoxide gas can be lethal at concentrations of 1000 ppm (0.1%).
Carbon monoxide binds with hemoglobin in the blood, forming carboxyhemoglobin, decreasing the blood’s ability to transport oxygen. The primary health concerns connected with carbon monoxide exposure are its cardiovascular and neurobehavioral results. Carbon monoxide gas can cause atherosclerosis (the hardening of arteries) and can also set off cardiovascular disease. Neurologically, carbon monoxide direct exposure reduces hand to eye coordination, watchfulness, and continuous performance.
Ventilation is the process of altering or changing air in any area to manage temperature or remove any combination of wetness, odors, smoke, heat, dust, airborne germs, or co2, and to renew oxygen. Ventilation includes both the exchange of air with the outdoors along with blood circulation of air within the structure.
Techniques for aerating a structure might be divided into mechanical/forced and natural types. A/C ventilation exhaust for a 12-story structure Mechanical, or required, ventilation is offered by an air handler (AHU) and utilized to control indoor air quality. Excess humidity, odors, and pollutants can frequently be controlled through dilution or replacement with outside air.
Bathroom and kitchens normally have mechanical exhausts to manage smells and in some cases humidity. Consider the design of such systems consist of the flow rate (which is a function of the fan speed and exhaust vent size) and noise level. Direct drive fans are available for lots of applications, and can decrease upkeep requirements.
Due to the fact that hot air increases, ceiling fans might be used to keep a space warmer in the winter season by distributing the warm stratified air from the ceiling to the floor. Natural ventilation is the ventilation of a building with outside air without utilizing fans or other mechanical systems. It can be via operable windows, louvers, or drip vents when spaces are small and the architecture permits.
Natural ventilation plans can use really little energy, but care must be taken to make sure convenience. In warm or damp environments, keeping thermal comfort exclusively by means of natural ventilation may not be possible. A/c systems are utilized, either as backups or supplements. Air-side economizers likewise utilize outside air to condition areas, but do so using fans, ducts, dampers, and control systems to introduce and disperse cool outdoor air when suitable.
