A subpar installation will render even the best HVAC systems practically useless
Low-quality HVAC installation is a common problem
A high-quality installation will focus on proper unit sizing, ductwork, airflow, refrigerant
Ask your installer for copies of manufacturer specifications and warranty details
For days, you painstakingly researched all the features you want in your new HVAC system. You probably shelled out a pretty penny for it, too. However, the efficiency rating isn’t the only factor that determines cost and overall performance. The quality of the HVAC installation influences a lot. Energy Star notes that an improper HVAC installation can decrease its operating efficiency by as much as 30%, and the issue of subpar work is more common than you think.
Sourcing a reputable and experienced HVAC technician near you can help you get the quality installation your HVAC unit deserves. Before contracting with a pro, make sure they follow this checklist to ensure quality HVAC installations.
Quality HVAC installations include a room-by-room load calculation review to determine the size of the system you need to heat and cool your home. Your HVAC pro should consider these factors to ensure proper sizing:
The number, location, and type of windows and doors
Insulation levels
The condition of your ductwork
Home size/square footage
Ventilation needs
Improperly-sized systems can impact your indoor humidity levels, energy bills, and overall lifespan of the system.
It may be a red flag if your technician installs the same sized system as your current unit—especially if you’ve been experiencing issues. A quality HVAC pro will recommend an updated, efficient, and appropriately-sized HVAC for your home based on their load calculations.
If your ductwork leaks, the full potential of your unit’s air won't reach all your living spaces, resulting in wasted energy. Before installation, your contractor should discuss with you the conditions of your duct system, as well as a solution to make your ductwork airtight if it’s leaking or too small for your needs.
Testing can range from basic visual checks to leveraging static pressure gauges to assess the situation. During HVAC installation, your pro may use mastic sealant or metal-backed duct tape to replace or repair the duct connections.
To ensure your AC works as it should, have your contractor measure and document the airflow. Inadequate airflow often wastes energy, exposes your home to health and safety issues, produces decreased comfort levels, and shortens the system’s life span.
Your contractor should refer to the cooling system's manufacturer details to identify the appropriate airflow rates and ensure the evaporator coil is equipped to transfer and absorb heat properly.
Your refrigerant charge refers to your refrigerant levels. If the levels are not within range of the QI standard, or they discover counterfeit refrigerant, it can result in insufficient cooling capacity and higher energy costs. Much like airflow adjustments, the contractor will consult manufacturer specs to determine the exact amount of refrigerant necessary to facilitate heat transfer in the evaporator and condenser.
HVAC systems need constant attention and care. And since the cost of installing a new HVAC unit is $7,500 on average, you don’t want to leave anything to chance. Request that your technician provide copies of the installation checklist used, owner manuals and warranties, and maintenance requirements. These documents will help future technicians understand the service history and help them determine how to maintain your system in the future.
In addition to the four vital HVAC installation guidelines above, your pro should also perform these quality assurance tasks:
Verify that the unit is electrically sound
Test the new furnace or boiler’s firing rate and venting system
Ensure the thermostat is fully compatible with the new unit, or install a new one
Provide sufficient space around the unit for servicing
Demonstrate how to change the filters correctly
Place the condenser out of direct sunlight, level, and away from falling water and gas or electric meters
You may pay a bit more to hire a reputable contractor with the training, education, and certification to conduct a high-quality installation, but investing in quality pays off in the long run, helping you to avoid the domino effect that results from a poor installation.
A new HVAC system combines components to control indoor temperature and air quality. Features include a furnace or heat pump and an air conditioner or evaporator coil, depending on the climate requirements. It also involves a network of ductwork for air distribution, a thermostat for temperature regulation, and electrical connections. Air purifiers or humidifiers can be integrated to improve indoor air quality.
A thermostat replacement may or may not come with a new HVAC system purchase. It depends on the HVAC installation package, manufacturer, and customer preferences. Some HVAC installations offer a basic thermostat as a bonus or a more advanced programmable or smart thermostat for an additional cost. However, discussing thermostat options with the HVAC provider is essential to ensure compatibility with the new system and desired temperature control and energy efficiency features.
HVAC replacement doesn't always include ductwork replacement. It depends on the condition of the existing ductwork. You can reuse your ducts if they are in good shape, adequately sized, and meet current standards. However, if the ducts are damaged, poorly designed, or not appropriately sized for the new system, they may need to be replaced or upgraded. HVAC contractors will assess the condition of the ductwork during the replacement process and recommend any necessary modifications or replacements to ensure the new HVAC system operates efficiently and distributes air effectively throughout your home.
