If you are adding on a second family room, a guest suite, or expanding your kitchen, expanding the square footage in your house will certainly be useful. However, in expanding the layout of your house, you should consider the heating and cooling requirements of the new added space. One of those factors is whether to upgrade your HVAC system size for a home addition in Scottsdale, Paradise Valley, or Fountain Hills.

Here are three options to consider as you get started with the process:

Option 1: No Upgrades Needed

If your home addition simply enlarges an existing space but adds no new rooms, you may not need to upgrade your HVAC system at all. This is especially true if your heating and cooling equipment was too big to begin with.

Request a load calculation from a professional technician. This will determine if your current HVAC equipment can adequately cool and heat the updates you have made to your home.

Option 2: Install a New Upsized HVAC System

Another solution for delivering heat and air conditioning into your home addition is to add on to the ductwork from your present forced-air system. By upsizing your system’s ductwork, you may have to put in HVAC equipment to force more air through the bigger load. In some remodels, we have seen the resulting electricity increase require a new electrical panel. If your heating and cooling system needs to be replaced soon anyway, choosing to install a new upsized system is probably your best option.

Option 3: Install a Ductless Mini-Split

Instead of upsizing your existing system, you can choose to install a separate system just for the remodeled area. A ductless mini-split system is ideal for this. Ductless mini-split systems have two parts: a condensing system that is placed on a slab outside, similar to an air conditioner, and the sleek indoor blower mounted to your wall or ceiling.  Just like a central heat pump, mini-split HVAC systems deliver cooling or heating, depending on the season, for continual comfort using only a single equipment system.

A ductless mini-split system might be the best HVAC option for your addition if:

  • Your existing system cannot be expanded to take on the extra area, and you are not prepared to replace it right away.
  • The old and new spaces have varying heating and cooling needs.
  • You are unable or unwilling to remodel your existing ductwork.

If you need help figuring out which HVAC option is right for you, we are here to offer you a professional consultation. We have a lot of experience helping homeowners fine-tune their indoor comfort, with a commitment to efficiency and eco-friendly HVAC systems. Call us today and our best experts will offer their help at (480) 531-8624.

We will start the process by doing a professional load calculation to assess your needs. Then, we will price out the costs of new ductwork installation and system upgrades vs. the costs of installing a separate ductless mini-split HVAC system. We will be sure to offer you all the possibilities to help you make an informed decision that is best for you. To get started, contact us at (480) 531-8624 or send us a message now!

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