Best HVAC Pros for horizon hvac Lake Waccamaw, NC. Phone +1 910-799-6611. 24 Hour Calls. Guaranteed Services – Low Prices.
What We Do?
Residential
HVAC Service
Are you looking for home heating or cooling services that are centered on home comfort solutions? The professionals at O'Brien Service Company sell, install, as well as repair HVAC units of all makes and models. Reach out to us today!
Commercial
HVAC Service
Commercial heating and cooling maintenance and repairs are inevitable. At O'Brien Service Company, we supply a comprehensive variety of heating and cooling support services to meet all of your commercial HVAC installation, replacement, repair, and routine maintenance demands.
Emergency
HVAC Service
Emergencies will and definitely do occur, when they do, rest comfortably that our experts will be there for you! O'Brien Service Company can easily supply emergency support at any moment of the day or night. Don’t hesitate to get in touch with us the moment an emergency happens!


24 Hour Service
We offer 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 achieved within your timespan and also even your trickiest heating or air conditioner problems will be resolved today. Your time is valuable– and our team 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 within , we complete regular maintenance, repair work and new installations modified to your needs and budget guidelines.
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 Lake Waccamaw, NC
Lake Waccamaw is a town in Columbus County, North Carolina, United States. The 2010 census population was 1,480.[4] Originally home to Native Americans, Europeans later colonized Lake Waccamaw in the 18th century. The Europeans built naval stores and the discovery of turpentine oil led to the Wilmington-Manchester railroad track being created. A shingle company was later converted to a lumber company.[5] In 1910, a group of townspeople created the Waccamaw Club.[6]
The town surrounds Lake Waccamaw, which features 9000 acres of diverse wildlife and is a major source of revenue for the town. The lake is bustling with many endemic species of fish, birds, mollusks, and other animals. In 2018, a forty-year ban on hunting alligators was lifted.[7] The town of Lake Waccamaw provides many recreational activities, such as birdwatching and hiking, due to the large population of wildlife and mild terrain.
Room pressure can be either positive or negative with regard to outside the space. Positive pressure takes place when there is more air being provided than exhausted, and is typical to minimize the infiltration of outdoors pollutants. Natural ventilation is an essential element in lowering the spread of air-borne illnesses such as tuberculosis, the acute rhinitis, influenza and meningitis.
Natural ventilation needs little maintenance and is low-cost. A cooling system, or a standalone air conditioning unit, provides cooling and humidity control for all or part of a structure. Air conditioned structures typically have sealed windows, due to the fact that open windows would work against the system intended to maintain constant indoor air conditions.
The percentage of return air comprised of fresh air can normally be manipulated by adjusting the opening of this vent. Normal fresh air consumption is about 10%. [] Cooling and refrigeration are offered through the elimination 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 cooling horsepower is sufficient for the area being cooled. Underpowered a/c system will result in power waste and inefficient use. Appropriate horse power is needed for any a/c set up. The refrigeration cycle uses 4 essential aspects to cool. The system refrigerant begins its cycle in a gaseous state.
From there it goes into 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 stream at the correct rate. The liquid refrigerant is returned to another heat exchanger where it is allowed to evaporate, thus the heat exchanger is typically called an evaporating coil or evaporator.
While doing so, heat is absorbed from indoors and moved outdoors, resulting in cooling of the building. In variable climates, the system might include a reversing valve that changes from heating in winter to cooling in summer season. By reversing the flow of refrigerant, the heat pump refrigeration cycle is altered from cooling to heating or vice versa.
Free cooling systems can have extremely high efficiencies, and are in some cases combined with seasonal thermal energy storage so that the cold of winter season can be utilized for summer season a/c. 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 because the storage functions as a heat sink when the system remains 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 often called a “free-cooling mode”. When saving money, the control system will open (totally or partly) the outside air damper and close (totally or partly) the return air damper.
When the outdoors air is cooler than the demanded cool air, this will permit the demand to be fulfilled without utilizing the mechanical supply of cooling (usually cooled water or a direct expansion “DX” unit), thus conserving energy. The control system can compare the temperature of the outside 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 bundle systems) with a combined outside condenser/evaporator unit are typically set up in North American residences, workplaces, and public structures, but are challenging to retrofit (set up in a structure that was not developed to get it) because of the large air ducts needed.

An alternative to packaged systems is using different indoor and outside coils in split systems. Split systems are preferred and extensively used worldwide except in The United States and Canada. In North America, split systems are usually seen in domestic applications, but they are acquiring appeal in little business buildings.
The benefits of ductless air conditioning systems include easy installation, no ductwork, greater zonal control, versatility of control and peaceful operation. [] In area conditioning, the duct losses can represent 30% of energy intake. Using minisplit can result in energy savings in space conditioning as there are no losses related to ducting.
Indoor systems with directional vents install 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 usually smaller than the plan systems.
