Home Comfort: HVAC resources, buying tips, and technology

HVAC is a subject field of mechanical engineering within the construction industry that focuses on using various Heating, Ventilation, and Air Conditioning technologies to provide thermal comfort to residential and commercial environments. HVAC first originated from a system design that used ventilation and humidity to “condition” internal air, removing moisture from textile factories. Central HVAC systems are whole-home heating, ventilation, and air conditioning systems with ventilation and dehumidification. Homeowners today have more options than ever when it comes to HVAC systems.

With precision climate control, homes can balance temperature, humidity, and indoor air quality while controlling common pollutants with natural and/or mechanical ventilation. And yes, from traditional central air conditioners to newer, high-efficiency heat pumps and ductless systems – the variety of products available can be overwhelming.

HVAC system design focuses heavily on thermodynamics, fluid mechanics, and heat transfer principles to improve energy efficiency and costs. Ultimately, the right HVAC system for your home will depend on a variety of factors, but understanding the latest innovations and understanding energy efficiency and indoor air quality, we’re here to help you find the ideal system for your home while saving money on energy costs in the long run.

Mechanical Ventilation

Mechanical ventilation is the process of using fans, ducts, and other equipment to supply and remove air from a building. This is an important aspect of HVAC design as it ensures that fresh air is constantly circulating throughout the building and that polluted air is removed. Proper ventilation also helps to control indoor air pollution and remove moisture, which can lead to mold and mildew growth.


Thermodynamics is the branch of physics that deals with the relationship between heat, energy, and temperature. It is an essential part of HVAC design as it helps engineers to understand how heat is transferred and how to make heating and cooling systems more efficient. By understanding the principles of thermodynamics, engineers can design HVAC systems that use less energy and produce more comfortable temperatures.

Thermal Comfort

Thermal comfort refers to the temperature, humidity, and air quality that a person finds comfortable. It is a subjective concept that can vary from person to person and is influenced by factors such as clothing, activity level, and personal preferences. By understanding the principles of thermal comfort, engineers can design HVAC systems that provide a comfortable environment for all building occupants. A properly functioning HVAC system should provide a comfortable temperature, humidity, and air quality for the occupants of the home.

Indoor Air Quality

Another important consideration when choosing an HVAC system is indoor air quality. A well-designed HVAC system should remove pollutants and allergens from the air to improve indoor air quality. This can be achieved through the use of air filters, UV light purifiers, and other air-cleaning technologies.


Ductwork is the system of ducts that is used to distribute heated and cooled air throughout a building. Properly designed and installed ductwork is essential to ensure that HVAC systems operate efficiently and provide thermal comfort. Homeowners should work with HVAC contractors to ensure that their ductwork is properly designed, installed, and maintained.

Energy Efficiency

HVAC systems can be powered by a variety of energy sources, including electricity, heating oil, natural gas, and others. Homeowners should consider the cost and availability of energy sources when choosing an HVAC system. In addition, they should consider the environmental impact of different energy sources and choose a system that is energy-efficient and has a low carbon footprint.

Typical residential electricity prices in the U.S. are 13.31 cents per kilowatt-hour (kWh). Electricity usage costs an average of $117 per month. An electric furnace is usually more expensive to operate than a gas furnace. In colder climates, American homeowners may have higher gas bills, with the average bill coming in at $72.10.

High-efficiency systems tend to have a higher initial cost, but can provide significant energy savings over time. Homeowners should consider the long-term cost savings and energy efficiency of HVAC systems when making purchasing decisions.


The upfront cost of HVAC systems can vary widely depending on factors such as the type of system, the size of the home, and the cost of labor. A HVAC system should be cost-effective, with a balance of initial cost and long-term energy savings. Before you attempt to find local pros in your area, start by comparing systems and exploring new and revolutionary features. Learn about the latest high-efficiency air conditioning units, furnaces, boilers, heat pumps, and split systems; compare system types, brands, efficiency, warranties, effectiveness, size and more. We are here to give you the leading edge with your buying decision. Find the right system and application that best fits your needs at the right price.

When considering a new HVAC system, it’s important to consult with a professional to determine the right system for your home. Factors to consider include the size of the home, the home’s insulation, and the customer’s budget and preferences. Additionally, be sure to check for available tax credits and rebates when purchasing a new HVAC system.


Proper installation of an HVAC system is essential to ensuring that they operate efficiently and provide thermal comfort. Homeowners should work with experienced HVAC contractors to ensure that their systems are properly installed and maintained. This includes regular cleaning of filters, ducts, and other components, as well as regular inspections and tune-ups.

Maintenance and Ease-of-use

Regular maintenance is also crucial for keeping HVAC systems running efficiently and prolonging their lifespan. This can include cleaning or replacing air filters, inspecting ductwork, and ensuring that all components are functioning properly. Maintenance and troubleshooting should be easy, with clear instructions and accessible components. Most HVAC maintenance is already illustrated by the manufacturer in the homeowner’s guide to your equipment. These guidelines and illustration should be followed seriously for optimal longevity of your system. For your convenience, we work to provide solutions for most basic troubleshooting and maintenance needs. Learn the best preventative maintenance techniques to keep your system running better than new.

Noise Level (Acoustic Design)

A HVAC system should have a low noise level to minimize disturbance to the occupants. Acoustic design is the process of controlling sound transmission throughout a building. It is an important aspect of HVAC design as it ensures that sound is properly isolated for speech privacy, and that conditions are maintained for good speech intelligibility. This can help to provide a more comfortable environment for building occupants.