Types of Air Conditioners (Explained the Southern Way)

By Delta T Services – HVAC Done the Southern Way

Not all AC systems are built the same — and not every home needs the same setup. Here’s a quick, no‑nonsense guide to the most common types of air conditioners you’ll see in North Carolina homes, what they’re good for, and when they make sense.

1. Central Air Conditioning (Most NC Homes)

What it is:
The classic setup — one outdoor unit, one indoor coil, ductwork throughout the house.

Best for:
Whole‑home cooling, homes with existing ductwork.

Pros:

• Even cooling in every room
• Quiet
• Works great with modern thermostats & zoning

Cons:

• Needs good ductwork
• Higher install cost if ducts are old or leaking

Delta T Note:
If your ducts are a mess, you’re paying to cool your attic. We fix that.

2. Heat Pump Systems (Huge in NC)

What it is:
Looks like a regular AC, but it can heat AND cool using the same outdoor unit.

Best for:
NC’s mild winters and hot summers.

Pros:

• Energy‑efficient
• One system for heating & cooling
• Works great with smart thermostats

Cons:

• Needs backup heat in very cold weather (we size this right so you don’t freeze)

Delta T Note:
Most NC homes should be on a heat pump unless there’s a specific reason not to be.

3. Ductless Mini‑Splits

What they are:
Small wall‑mounted units that cool (and heat) specific rooms without ductwork.

Best for:
Bonus rooms, garages, sunrooms, additions, older homes with no ducts.

Pros:

• Super efficient
• No ductwork needed
• Great temperature control per room

Cons:

• More visible on the wall
• Not ideal for whole‑home cooling unless you install multiple units

Delta T Note:
Perfect for that FROG room that’s always 10 degrees hotter than the rest of the house.

4. Window Units

What they are:
The “stick it in the window and hope for the best” option.

Best for:
Temporary cooling, apartments, or when you’re waiting on a real repair.

Pros:

• Cheap
• Easy to install

Cons:

• Loud
• Inefficient
• Security risk
• Ugly

Delta T Note:
If you’re relying on these long‑term, call us. You’re spending more than you think.

5. Portable AC Units

What they are:
Roll‑around units with a hose that vents out a window.

Best for:
Emergency cooling or rooms where a window unit won’t fit.

Pros:

• Easy to move
• No permanent install

Cons:

• Least efficient option
• Takes up floor space
• Often struggles in NC humidity

Delta T Note:
These are “band‑aid” units, not real cooling solutions. Do not pay attention to marketing that says otherwise.

6. Packaged Units

What they are:
All‑in‑one systems that sit outside (common on manufactured homes or older buildings).

Best for:
Homes without space for an indoor air handler.

Pros:

• Everything in one box
• Easy to service

Cons:

• Less efficient than split systems
• More exposed to weather

Delta T Note:
If you have one of these, we keep them running — but upgrading to a split system can save serious money.

Which AC System Is Right for You?

It depends on:

• Your home’s ductwork
• Your square footage
• Your insulation
• Your budget
• Your comfort goals
• Whether you want to cool the whole house or just certain rooms

Delta T Services can walk you through the options without the sales‑pressure nonsense. We treat you right, and we size systems based on your home — not whatever the big-box brands are pushing this month.