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HVAC DESIGN & FACILITIES

WHAT HVAC UNIT IS RIGHT FOR YOU?

Looking for the best way to heat or cool your home, office, or building? HVAC (Heating, Ventilation, and Air Conditioning) systems provide efficient temperature control and air circulation for any space. From central heating and cooling to portable AC units and space heaters, there are multiple options to choose from.

HVAC systems fall into two main categories: ducted and ductless. Ducted systems distribute heated or cooled air through a network of air ducts, while ductless systems rely on alternative methods for air circulation.

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In this guide, we’ll explore the most common types of HVAC systems, how they work, and which one is best suited for your needs. Whether you're upgrading your current system or installing a new one, find the perfect HVAC solution for your space.

Cleaning the Filters

Split Sytem

Heating and cooling split systems are the most common types of HVAC systems used in residential buildings. They consist of two separate components — one for heating and one for cooling — and use a traditional thermostat to control the temperature for the entire structure.

In most buildings with split systems, the heating unit is located in a basement, utility closet or other indoor storage space. The heater is gas-powered and uses an evaporator or fan to push heat through a building’s ductwork. On the other hand, the cooling system is located outside and connects to a building’s ductwork through a series of tubing. It uses compressors, coils and refrigerant to create cool air, and a fan directs hot air out and away from the building.

 

Key Feature: One thermostat controls the temperature for the entire unit

Hybrid Split System

A hybrid split HVAC system has the same structure and cooling unit as a split system but doesn’t rely solely on gas to create heat. While its heater can burn gas, it can also switch to electric power. Electric heating is often slower and less powerful than gas-powered, but this option gives building owners more control over their building’s energy consumption and can help reduce energy costs in milder climates.

 

Key Feature: Reduces energy consumption

Packaged Heating and Cooling

Packaged heating and cooling systems are less common than split systems, but their smaller size makes them better suited for small buildings lacking extra storage space. The heating and cooling components are housed in a single unit and are generally stored on a roof, in an attic space or near the building’s foundation.

Packaged HVAC systems connect to a building’s supply and return ducts, often through a single hole in the wall. Depending on the climate, building owners can choose to install a packaged heat pump containing evaporator coils or a packaged air conditioner with an air handler with optional heat strip elements. Both systems cost less to install than split systems and are easier to maintain.

 

Key Feature: Single unit is easy to maintain

Zoned System

HVAC zoning systems afford occupants greater control over the temperature in separate rooms or areas in a building. Technicians can zone ducted HVAC systems in a few different ways, and the best method often depends on the size of the building. For example, people who own larger homes may choose to install multiple HVAC systems to control the temperature on different floors. Because each system is completely separate, this type of zoning requires building owners to install two or more heating and cooling units.

Another common type of zoning involves installing manual or automatic dampers in a system’s air ducts to control the amount of airflow in different areas. Partially closing a damper restricts airflow to one zone while pushing it toward another, making it easier to adjust each room to its ideal temperature. This type of zoning creates a more comfortable environment for occupants and improves energy efficiency by directing air away from zones that don’t need it.

 

Key Feature: Allows for more personalized temperature control

TYPES OF DUCTED HVAC SYSTEMS

Types Of Ducted HVAC Systems

TYPES OF DUCTLESS HVAC SYSTEMS

Types of Ductless HVAC Systems

Duct-Free Mini-Split

Ductless mini-split systems are installed in individual rooms and are common fixtures in multifamily homes, office buildings and hotel rooms. Also known as mini-split systems, these electric units include an outdoor compressor and condenser, refrigerant, an indoor air-handling unit, a heat pump, power cables and a thermostat for each zone. Copper tubing connects the indoor and outdoor components, and one compressor can connect to up to nine indoor air-handling units.

While duct-free systems can be expensive to install, they often help reduce energy costs and consumption over time. Their flexible zoning capabilities allow users to heat and cool occupied rooms only, preventing energy loss associated with ductwork. However, the heating components are less effective in below-freezing temperatures, so people living in colder climates often need to add a separate heating system.

 

Key Feature: Provides ductless temperature control for individual spaces

Hydronic Heating

Unlike the other HVAC systems in this list, hydronic heating uses liquid rather than air to radiate heat. This system uses a boiler to heat water, then distributes it throughout a building using a series of pipes under the floors. Once the liquid reaches a radiator or baseboard heater, it distributes heat throughout the room. Homeowners can also install a radiant flooring system that uses hydronic heating to heat their floors.

 

Key Feature: Uses liquid to radiate heat

Portable Spot Cooler

Spot coolers are portable AC units designed to cool down large rooms, manufacturing facilities or outdoor spaces. They work by drawing in ambient air, pushing it over a closed-loop coil cooled by refrigerant and pumping it back into the space. The coil cools and removes humidity from the air, creating leftover condensation that drains out into a hose or catch bucket.

Spot coolers can operate in any location with an electrical power source, and attached wheels make them easy to move. That said, finding a place to let out the exhaust can make setup in enclosed spaces more difficult. After cooling the air, spot coolers pump leftover warm air out through a flexible exhaust tube. This tube is usually extendible, and it must lead out through a door, window or drop ceiling to prevent warm air from re-entering the space.

 

Key Feature: Portable and easy to set up

Portable Heat Pump

A Portable Heat Pump is similar in size and operation to a spot cooler but offers an additional heating option for colder environments. When switched to heating mode, a heat pump draws in outside air, runs it over a condenser coil and disperses warm air throughout the room. A reversing valve inside the unit allows users to switch between heating and cooling capabilities, making it a good option for varying climates.

 

Key Feature: Has both heating and cooling capabilities

YOUR NEW AC SYSTEM

Whether you're installing a new HVAC system or looking for a temporary temperature control option, there's a perfect system to meet your needs. Not sure which HVAC system is right for your space? The experts at Xelor Air & Heat are here to help! Our HVAC specialists can guide you in choosing the best system for optimal comfort and efficiency. Contact us today for expert advice and professional installation!

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