Top Rated AC & Heating Pros for horizon hvac Oak Island, NC. Phone +1 910-799-6611. 24 Hour Calls. Guaranteed Services – Low Prices.
What We Do?
Residential
HVAC Service
Are you searching for home heating and cooling support services that are focused on complete home comfort remedies? The professionals at O'Brien Service Company sell, install, and also fix HVAC systems of all makes and models. Get in touch with us today!
Commercial
HVAC Service
Commercial heating and cooling maintenance and repairs are inevitable. At O'Brien Service Company, we supply an extensive array of heating and cooling support services to meet all of your commercial HVAC installation, replacement, repair work, and servicing demands.
Emergency
HVAC Service
Emergencies will and definitely do happen, when they do, rest comfortably that our experts will be there for you! O'Brien Service Company is able to provide emergency services at any time of the day or night. Never hesitate to get in touch with us the second 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 guarantees that your comfort requirements are fulfilled within your timespan and also even your most worrisome heating and air conditioner issues will be resolved today. Your time is valuable– and our company won’t keep you waiting!

25 YEARS EXPERIENCE
With over two decades of experience bringing our customer’s complete satisfaction, O'Brien Service Company is a premier provider of HVAC services. Serving homes and businesses throughout , we perform regular servicing, repairs and also new installations modified to your needs and budget demands.
Testimonials
Contact Us
O’Brien Service Company
3308 Enterprise Dr, Wilmington, NC 28405, United States
Telephone
+1 910-799-6611
Hours
Mon-Fri, 8am – 5:30pm
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More About Oak Island, NC
Oak Island is a seaside town located in the southeastern corner of North Carolina. Part of Brunswick County, the major portion of the town is on Oak Island which it shares with Caswell Beach. Founded in 1999 as the result of the consolidation of two existing towns, Oak Island’s main industry is tourism. Per the 2010 census, it had a permanent population of 6,783 which in 2018 was estimated to be 8,072. Its average summer population ranges from 30-50,000 and the town is considered to be a part of the Myrtle Beach metropolitan area.[2]
Oak Island, on which much of the town sits, has been inhabited since the early 19th century when Fort Caswell was constructed on its east end in 1838. The island developed slowly, but by the late 1930s it began attracting people from nearby Southport with fox hunting popular in the areas along the Intracoastal Waterway (ICW). In 1954, Hurricane Hazel struck, leaving only five buildings standing on the west end of the island[3] The island recovered quickly however, and the towns of Long Beach and Yaupon Beach were incorporated in 1955. Along with this increasing level of development came strident demands for a reliable crossing of the ICW to provide access to the island.
Space pressure can be either favorable or unfavorable with regard to outside the space. Positive pressure occurs when there is more air being provided than exhausted, and is common to lower the seepage of outside contaminants. Natural ventilation is a key consider minimizing the spread of airborne illnesses such as tuberculosis, the acute rhinitis, influenza and meningitis.
Natural ventilation needs little upkeep and is affordable. An air conditioning system, or a standalone ac system, offers cooling and humidity control for all or part of a building. Air conditioned structures often have actually sealed windows, since open windows would work against the system intended to keep consistent indoor air conditions.
The portion of return air comprised of fresh air can usually be controlled by adjusting the opening of this vent. Typical fresh air intake has to do with 10%. [] A/c and refrigeration are provided 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 air conditioning horsepower is enough for the area being cooled. Underpowered a/c system will lead to power wastage and inefficient use. Sufficient horsepower is required for any air conditioner installed. The refrigeration cycle uses 4 vital elements to cool. The system refrigerant begins its cycle in a gaseous state.
From there it enters 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 (also called metering gadget) manages 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 process, heat is absorbed from indoors and transferred outdoors, resulting in cooling of the structure. In variable environments, the system might include a reversing valve that switches from heating in winter to cooling in summertime. By reversing the flow of refrigerant, the heatpump refrigeration cycle is changed from cooling to heating or vice versa.
Free cooling systems can have very high efficiencies, and are often combined with seasonal thermal energy storage so that the cold of winter can be utilized for summer air conditioning. 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 heatpump is added-in since the storage serves as a heat sink when the system remains in cooling (instead of charging) mode, triggering the temperature level to gradually increase throughout the cooling season. Some systems include an “economizer mode”, which is in some cases called a “free-cooling mode”. When economizing, the control system will open (fully or partially) the outdoors air damper and close (totally or partially) the return air damper.
When the outside air is cooler than the demanded cool air, this will allow the need to be met without using the mechanical supply of cooling (generally chilled water or a direct expansion “DX” unit), therefore saving energy. The control system can compare the temperature of the outside air vs.
In both cases, the outside air needs to be less energetic than the return air for the system to go into the economizer mode. Central, “all-air” air-conditioning systems (or bundle systems) with a combined outdoor condenser/evaporator system are often set up in North American homes, offices, and public structures, however are tough to retrofit (set up in a structure that was not designed to receive it) because of the large duct needed.

An alternative to packaged systems is the usage of different indoor and outside coils in split systems. Split systems are preferred and widely utilized around the world other than in North America. In North America, divided systems are usually seen in property applications, however they are gaining appeal in little business structures.
The benefits of ductless cooling systems consist of easy installation, no ductwork, higher zonal control, versatility of control and peaceful operation. [] In space conditioning, the duct losses can account for 30% of energy consumption. Using minisplit can lead to energy savings in space conditioning as there are no losses related to ducting.
Indoor units with directional vents mount onto walls, suspended from ceilings, or suit the ceiling. Other indoor systems mount inside the ceiling cavity, so that brief lengths of duct deal with air from the indoor unit to vents or diffusers around the rooms. Split systems are more efficient and the footprint is normally smaller sized than the plan systems.
