See that guy with a truck? He says he's cheap and pretty good with duct work.
Sure, he might be good. He might even juggle wrenches while balancing tin snips on his nose. However, today's HVAC systems deliver highly efficient heating and cooling only when they are installed correctly. When installed improperly, they deliver poor performance and expensive headaches down the road.
For your home's HVAC system to work efficiently, your heating and cooling loads need to be accurately assessed. Since these loads vary from room to room, the output from both the heating and air conditioning components must be correctly matched to your home's size. The amount of air flow through the space must also match the capacity of the blower (or fan). And lastly, the duct work must be properly sized to evenly distribute heating and cooling throughout your home without substandard short cuts that introduce dust or mold.
When you're looking to install a new energy efficient HVAC system, you want to get optimum performance for your home. Talk to a HVAC expert representative. Their years of training and experience with current equipment enable them to properly design energy efficient systems that can reduce your energy usage and save you money.
Yet, even if the system is designed by a professional, the installation job can be bungled by someone who lacks the right training. Experienced, licensed technicians have completed rigorous training. They know how to safely install reliable systems according to manufacturer specifications whether it uses high voltage electrical or gas burning equipment. They also know how to set-up and tune the system to get the optimal performance for best lifespan, efficiency, and comfort.
So, even if the guy with the truck says he's cheap, remember that an efficient HVAC system is an expensive investment in your home's value and your family's comfort and safety.
You might not be able to afford his kind of offer, after all.