AC Unit for Mobile Home
A practical guide to cooling a manufactured home: window units, mini-splits, central/package units and portable ACs, with sizing, typical costs and installation tips.
What’s in this guide
Types of AC Units for Mobile Homes
There are four main types of air conditioning for manufactured homes. Each has pros and cons depending on your budget, home size, and whether you rent or own.
Window AC Units
The most affordable and easiest option for mobile home cooling. Window units fit many mobile home windows and can cool one room or a small area effectively.
Best for: Single rooms, renters, tight budgets, quick installation
Cost: $150-400 per unit
Pros
- Affordable upfront cost
- Easy DIY installation
- No permanent modifications
- Can take with you if you move
Cons
- Only cools one area
- Blocks window view
- Can be noisy
- Higher electric bills if running multiple
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Window AC Unit
Affordable cooling for single rooms. Measure your window first. Multiple BTU options available.
View on AmazonAC Install Kit
Foam insulation, brackets and weatherstripping to seal and support a window AC.
View on AmazonMini-Split AC Systems
Mini-splits are ductless systems with an outdoor compressor and indoor air handler. They’re increasingly popular in mobile homes because they’re efficient, quiet, and don’t require ductwork.
Why mini-splits matter for mobile homes: Many older manufactured homes have inefficient or damaged ductwork. Mini-splits bypass this problem entirely, delivering cool air directly into your living space. Most mini-splits sold today are heat pumps, so they can provide both heating and cooling (check that the model you pick is a heat pump, not cooling-only).
Best for: Whole-home cooling, homes with bad ductwork, energy efficiency, year-round comfort
Cost: $700-2,000+ for the equipment, depending on BTU and zones
Pros
- Very energy efficient
- Heat pump models heat and cool
- Quiet operation
- No ductwork needed
- Zone control options
Cons
- Higher upfront cost
- Refrigerant lines need an EPA 608-certified tech (unless it’s a sealed, pre-charged DIY kit)
- Visible indoor unit on wall
Mini-Split AC System
A good fit for mobile homes with old or damaged ductwork. A single-zone unit can often handle the main living area; bedrooms behind closed doors may need a second indoor head. Look for a high SEER rating, and ask your electric utility whether rebates are available.
Check Current PricesCentral AC / Package Units
Central air conditioning uses ductwork to distribute cool air throughout your entire mobile home. Package units combine the compressor and air handler in one outdoor unit, which is common for manufactured homes.
Best for: Whole-home cooling, homes with good existing ductwork, long-term homeowners
Cost: about $2,500-5,000+ installed for a basic swap; more if ductwork or electrical work is needed (see the cost breakdown below)
Pros
- Cools entire home evenly
- Out of sight (no window units)
- Buyers generally like a working central system
- Works with existing ductwork
Cons
- Highest upfront cost
- Requires professional installation
- Ductwork must be in good condition
- Not portable if you move
Goodman 3-Ton Package Unit
Goodman is a common choice for mobile home central AC: affordable, widely available, and most HVAC techs know them. A 3-ton unit fits many larger double-wides, but size yours from a load calculation, not a guess.
View on AmazonPortable AC Units
Portable air conditioners sit on the floor and vent through a window or wall. They’re the most flexible option but generally less efficient than other types.
Best for: Renters, temporary cooling, rooms without suitable windows, supplemental cooling
Cost: $300-700
Pros
- No permanent installation
- Move room to room
- Works in most spaces
- Take it when you move
Cons
- Less efficient than window units
- Takes up floor space
- Can be noisy
- Exhaust hose required
Portable AC Unit
Plug in and vent through a window. Useful for renters or rooms where a window unit won’t fit.
View on AmazonAC Unit Sizing Guide for Mobile Homes
Proper sizing is critical. An undersized unit won’t cool your home. An oversized unit cycles on and off too frequently, wasting energy, wearing out faster, and leaving the air damp because it never runs long enough to pull out humidity.
A common rule of thumb for room air conditioners is about 20 BTU per square foot of living space (the U.S. Department of Energy has more on choosing room units). For a central system or a multi-zone mini-split, ask the installer to do a proper load calculation (often called a Manual J) instead of sizing by square footage alone.
| Mobile Home Size | Square Feet | BTU Needed | Tonnage |
|---|---|---|---|
| Small Single-Wide | 600-800 sq ft | 14,000-18,000 | 1.5 ton |
| Large Single-Wide | 800-1,100 sq ft | 18,000-24,000 | 2 ton |
| Small Double-Wide | 1,100-1,400 sq ft | 24,000-30,000 | 2.5 ton |
| Large Double-Wide | 1,400-2,000 sq ft | 30,000-36,000 | 3 ton |
Tip: Poor insulation, lots of sun-facing windows, or a very hot climate can push your needs toward the top of these ranges. Fixing air leaks and mobile home insulation first is often cheaper than buying a bigger unit, and a bigger unit than you need brings the short-cycling problems above.
Cost Comparison: AC Options for Mobile Homes
Window Unit
Portable AC
Mini-Split
Central/Package
Understanding SEER Ratings
SEER stands for Seasonal Energy Efficiency Ratio. It measures how efficiently an AC unit converts electricity into cooling. A higher SEER unit uses less electricity for the same cooling; how much you actually save depends on your climate, how much you run it, and your electric rate.
| SEER Rating | Efficiency Level | Best For |
|---|---|---|
| 14-15 | Minimum Standard | Budget buyers, mild climates |
| 16-18 | High Efficiency | Most mobile homes, moderate climates |
| 19-21 | Very High Efficiency | Hot climates, heavy AC use |
| 22+ | Ultra Efficiency | Long cooling seasons, heavy year-round use |
Tip: Federal minimum efficiency standards for new central AC changed in 2023 and now differ by region, with higher minimums in southern states. New equipment is labeled with “SEER2” numbers, which run a little lower than the old SEER scale for the same unit, so compare SEER2 to SEER2. SEER 16 or higher (or the SEER2 equivalent) is usually a good balance of upfront cost and running cost.
Common AC Brands for Mobile Homes
Some brands make package units and furnaces specifically for manufactured housing; others are general mini-split brands. These are names you’ll commonly see:
| Brand | Known For | Price Range |
|---|---|---|
| Goodman | Value, widely available | $$ |
| Revolv | Budget-friendly | $ |
| Coleman | Higher-end, durability | $$$ |
| Intertherm | Manufactured home specialist | $$ |
| MRCOOL (Mini-Splits) | DIY pre-charged kits, ductless | $$ |
Warranty terms vary by model and often depend on registering the unit within a set time after installation. Check the current warranty before you buy.
Tip: For most mobile homeowners, Goodman is a sensible combination of price and parts availability. HVAC technicians are familiar with them, which can make repairs easier.
Full Cost Breakdown: Mobile Home AC Installation
The sticker price is just the beginning. Typical ranges (your local prices will vary):
| Cost Category | Window Unit | Mini-Split | Central/Package |
|---|---|---|---|
| Equipment | $150-400 | $700-2,000 | $2,000-4,000 |
| Installation Labor | $0 (DIY) | $300-800 | $500-1,500 |
| Electrical Work | $0 | $100-300 | $200-500 |
| Ductwork Repair | N/A | N/A | $500-2,000 |
| Permits | $0 | $50-150 | $100-250 |
| Old Unit Removal | $0 | $50-100 | $100-200 |
| Concrete Pad | N/A | $50-150 | $100-300 |
| TOTAL RANGE | $150-400 | $1,250-3,500 | $3,500-8,750 |
Hidden cost: Mobile home ductwork replacement can run $1,000-3,300. If your ducts are damaged (common in older homes), factor this into your central AC budget. It’s one reason many owners look at ductless mini-splits instead.
Climate Considerations for Mobile Home AC
Where you live affects which AC unit you need and how you should size it:
Hot and Humid Climates (Florida, Texas Gulf Coast, Southeast)
- Don’t oversize. An oversized unit cools the air fast and shuts off before it removes moisture, leaving the house cold and clammy. Size from a load calculation.
- Choose SEER 16+ for lower electric bills
- Consider a unit with enhanced dehumidification or a variable-speed compressor
- Mini-splits (variable-speed) handle humidity well
- Keep the thermostat fan on AUTO, not ON, so moisture can drain off the coil instead of being blown back into the house
Hot and Dry Climates (Arizona, Nevada, Desert Southwest)
- Standard BTU calculations usually work
- Evaporative coolers (swamp coolers) can work here
- High SEER ratings pay off faster with heavy AC use
- Shade and insulation reduce AC load significantly
Moderate Climates (Midwest, Mid-Atlantic, Pacific Northwest)
- Standard BTU calculations work well
- Heat pump/mini-split systems can provide year-round comfort
- SEER 14-16 is usually sufficient
- Window units may be adequate for occasional hot days
Repair vs Replace: When to Get a New AC Unit
Not sure if you should repair your current AC or buy new? These are common rules of thumb:
Repair Your AC If:
- Unit is less than 10 years old
- Repair cost is less than 50% of replacement cost
- It’s a simple fix (capacitor, fan motor, or a refrigerant leak that can be found and repaired)
- No major component failures (compressor, coils)
- Energy bills haven’t increased dramatically
Replace Your AC If:
- Unit is 15+ years old
- Repair cost exceeds 50% of replacement cost
- Compressor has failed
- Uses R-22 refrigerant (phased out, very expensive)
- Frequent breakdowns
- Energy bills have climbed noticeably with the same usage
- Uneven cooling or humidity problems
Refrigerant is not a DIY job. Low refrigerant means there’s a leak; topping it off without fixing the leak just postpones the problem. Under federal rules, opening a refrigerant circuit and buying or handling refrigerant requires an EPA Section 608-certified technician. The exception is a sealed, pre-charged DIY mini-split kit installed exactly per its instructions.
The “5,000 rule” (rule of thumb): Multiply your AC’s age by the repair cost. If the result exceeds $5,000, replacement is usually worth considering. Example: 12-year-old unit × $450 repair = $5,400, so lean toward replacing.
Save Money with a Smart Thermostat
A programmable or smart thermostat can help cut cooling costs. Program it to raise the temperature when you’re away and cool down before you return.
Smart Thermostat
Control your AC from your phone, set schedules, and monitor energy use. Works with most central AC systems; most mini-splits use the maker’s own remote or app, or a mini-split-specific smart controller, so check compatibility first.
View on AmazonInstallation Tips for Mobile Home AC
Window AC Installation
- Measure your window opening before buying. Mobile home window sizes vary, and some styles (crank-out or jalousie) won’t take a standard window unit.
- Use foam insulation to seal gaps
- Use support brackets so the unit can’t fall; mobile home window frames are often light-duty
- Tilt slightly outward for drainage, or as the manufacturer’s instructions direct
- Plug the unit straight into a properly rated outlet, never an extension cord or power strip. Larger units may need a dedicated circuit; have a licensed electrician add one.
Central AC / Package Unit Installation
- Requires professional installation
- Package units sit on a concrete pad outside
- Connects to existing ductwork under the mobile home
- Check ductwork condition before installing; leaky ducts can waste a big share of the cooled air
- May require an electrical panel upgrade
Important: Before installing central AC, have your mobile home electrical system inspected. Older homes may need panel or feeder upgrades to handle the load, and that work should be done by a licensed electrician.
Mini-Split Installation
- DIY kits with pre-charged, sealed quick-connect line sets are available. For any other mini-split, connecting, vacuuming and charging the refrigerant lines must be done by an EPA 608-certified technician.
- The new dedicated circuit and disconnect should be installed by a licensed electrician
- Outdoor unit can sit on the ground (on a pad) or mount on a wall bracket
- Indoor unit mounts high on the wall
- Usually needs only a roughly 3″ hole through the wall for the lines
- No ductwork modifications needed
Which AC Unit Is Best for Your Mobile Home?
Choose Window AC If:
- You’re on a tight budget
- You only need to cool one or two rooms
- You rent your mobile home
- You want easy DIY installation
Choose Mini-Split If:
- Your ductwork is old or damaged
- You want energy efficiency
- You need both heating and cooling (heat pump models)
- You want quiet operation
Choose Central AC If:
- You have good existing ductwork
- You want whole-home cooling
- You own your home long-term
- You want a system buyers expect
Choose Portable AC If:
- You rent and can’t modify windows
- You need temporary cooling
- You want to move the unit between rooms
- Window units won’t fit your windows
Would You Rather Sell Than Repair?
If a dead AC is just one item on a long repair list, selling the home as-is is one option to compare. I buy mobile homes that need work, working AC or not, and you don’t have to fix anything first.
FAQ: AC Unit for Mobile Home
What size AC unit do I need for a mobile home?
As a rough starting point, plan for about 20 BTU per square foot. An 800 sq ft single-wide works out to roughly 16,000-18,000 BTU (about 1.5 tons); a 1,400 sq ft double-wide to roughly 28,000-30,000 BTU (about 2.5 tons). Poor insulation or a hot climate pushes you toward the top of the range. For central systems, get a load calculation rather than oversizing.
Can I use a regular AC unit in a mobile home?
Yes, but sizing matters. Window units and portable ACs work the same in mobile homes. For central AC, you’ll usually want a package unit made for manufactured housing, which combines all components in one outdoor unit.
What is the best AC brand for mobile homes?
For package units, Goodman is a popular choice for mobile homes: affordable, widely available, and parts are easy to find. For mini-splits, brands like MRCOOL, Senville, and Pioneer are common budget-to-mid options.
How much does it cost to install AC in a mobile home?
Window units are usually a DIY install. Professional mini-split installation typically starts around $300-800 for labor, plus electrical work. Central AC package units typically run $500-1,500 for installation, depending on ductwork condition and electrical requirements. Get more than one quote; local prices vary a lot.
Why is my mobile home AC not cooling?
Common causes include dirty filters, a refrigerant leak, frozen coils, or leaky ductwork. Check filters monthly during summer and replace them when dirty. If that doesn’t help, you may have ductwork leaks, common in older mobile homes where the belly wrap has deteriorated. If you suspect low refrigerant or frozen coils that keep coming back, call an EPA 608-certified HVAC technician.
Are mini-splits good for mobile homes?
Yes, mini-splits are a good fit for many mobile homes. They don’t require ductwork (which is often damaged in older manufactured homes), they’re energy efficient, and heat pump models provide both heating and cooling. They’ve become a popular choice for mobile home HVAC.
This page is general information, not a substitute for the equipment manufacturer’s instructions, your local code, or a qualified HVAC technician and licensed electrician. Product links are affiliate links; as an Amazon Associate I earn from qualifying purchases.