What Size Air Conditioner for a 14X70 Mobile Home?
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If you own a 14×70 mobile home and want to buy an AC for it, then what size air conditioner for a 14X70 mobile home you need is a genuine concern.
Generally, a good rule of thumb is that a 14×70 mobile home typically requires an air conditioner with a cooling capacity between 2.5 and 4 tons (30,000 to 48,000 BTU).
However, the accuracy of the size depends on several factors. Let’s figure out other contributing factors that affect air conditioner size, calculate the BTUs for a 14×70 mobile home, and get an idea about the best air conditioners for this type of living space
Factors Affecting Air Conditioner Size in Mobile Homes
Several factors come into play when determining the appropriate air conditioning unit size for a 14×70 mobile home. These include:
# Square Footage: This is the most basic factor. A 14×70 mobile home has a total area of 980 square feet. Generally, you will need approximately 20-25 BTUs per square foot of living space.
# Ceiling Height: The height of your mobile home’s ceilings can also impact the BTU requirements. Taller ceilings typically require more BTUs to cool the space effectively.
# Insulation: Mobile homes often have less insulation than traditional homes. Poor insulation means more heat enters your home, requiring a larger AC unit.
# Window Placement and Size: Homes with larger windows or excessive sun exposure may need additional cooling capacity to compensate for heat gain.
# Number of Occupants: The number of people living in your mobile home can also influence the BTU requirements, as each person generates heat and adds to the cooling load.
# Appliance Usage: Appliances like ovens, refrigerators, and even lights generate heat. Factor in the number and usage of appliances in your home.
# Climate: The hotter and more humid your climate, the larger the AC unit you’ll need. Consider your average summer temperatures and humidity levels.
BTU Calculation for Mobile Homes
BTU (British Thermal Unit) is the standard measurement for air conditioner capacity. A higher BTU rating means the unit can remove more heat from a space. To estimate the BTU, you can use the following calculation:
For a basic estimate, multiply your mobile home’s square footage by 20-25. For a 980-square-foot mobile home, this would be 19,600-24,500 BTUs.
Add 10% to 20% for every 5 degrees Fahrenheit above 75 degrees Fahrenheit in your average summer temperature.
Add 10% to 20% if your mobile home has poor insulation.
Add 5% to 10% for every large window facing the sun.
Add 500 BTUs per person for additional occupants.
Add 500-1000 BTUs for each appliance that generates significant heat.
Add 5% to 10% for every foot above 8 feet.
Example:
For a 980-square-foot mobile home in a climate with average summer temperatures of 85 degrees Fahrenheit, with poor insulation and two large windows facing the sun, the estimated BTU requirement would be:
Square footage: 980 sq ft x 25 = 24,500 BTUs
Climate: 24,500 BTUs x 20% = 4,900 BTUs
Insulation: 24,500 BTUs x 10% = 2,450 BTUs
Windows: 24,500 BTUs x 10% = 2,450 BTUs
Total estimated BTU requirement: 24,500 + 4,900 + 2,450 + 2,450 = 34,300 BTUs
This calculation suggests that a 2.5- to 3-ton (34,300 BTU) air conditioner would suit a 14×70 mobile home with average insulation and occupancy levels. Moreover, remember to consider the other factors mentioned above, as they can significantly impact the cooling load.
Note:
This is just an estimate. You should consult with a qualified professional to assess your specific needs accurately.
What Size Air Conditioner is Needed for a 14X70 Mobile Home?
Based on the BTU calculation and the factors affecting cooling load, a 14×70 mobile home typically requires an air conditioner with a cooling capacity between 2.5 and 4 tons (30,000 to 48,000 BTU). Here’s a general guideline:
A 2.5-ton (30,000 BTU) unit may suffice for well-insulated homes in milder climates with minimal sun exposure and occupancy.
A 3-ton (36,000 BTU) unit is recommended for moderately insulated homes in average climates with moderate sun exposure and occupancy.
For poorly insulated homes in hot and humid climates with significant sun exposure and high occupancy, a 4-ton (48,000 BTU) unit may be necessary.
Best Types of Air Conditioners for Mobile Homes
When it comes to selecting the best air conditioner for your 14×70 mobile home, there are several options to consider:
- Central Air Conditioning: A central air conditioning system with a single outdoor compressor unit and indoor air handling unit can be an excellent choice for mobile homes. These systems are known for their efficiency and can provide even cooling throughout the living space.
- Ductless Mini-Split Systems: Ductless mini-split air conditioners are another popular option for mobile homes. These systems include an outdoor compressor unit and one or more indoor air handling units, allowing for targeted cooling in specific rooms or zones.
- Window Air Conditioners: Although not as efficient as central or ductless systems, window air conditioners can be a more affordable option for smaller mobile homes. These units are easy to install and can provide localized cooling in individual rooms.
- Portable Air Conditioners: Portable air conditioners are a flexible choice, as they can be moved from room to room as needed. They are a good option for mobile homes with limited installation options or those with zonal cooling requirements.
Installation and Setup Costs for Air Conditioners in Mobile Homes
The installation and setup costs for an air conditioner in a mobile home also vary depending on the unit type and the installation’s complexity. Here are some typical cost ranges:
1. Window or Portable Air Conditioners:
These are the most affordable installation options, as they require minimal setup. Expect to pay around $100 to $300 for professional window or portable unit installation. The cost mainly includes properly mounting and sealing the unit in the window or wall and any basic electrical work required.
2. Ductless Mini-Split Systems:
Installation for a ductless mini-split system is more involved and will cost more than window units. On average, professional installation runs $2,000 to $5,000 or more, depending on the number of indoor air handling units required. This covers mounting the outdoor condenser, running refrigerant lines inside each air handler, making holes in walls if needed, and connecting the electrical and drain lines.
3. Central Air Conditioners:
Installation is the most expensive option for mobile homes that can accommodate central air, at an average of $3,500 to $8,000. This higher cost accounts for installing the condenser unit, running ductwork if none exists, making structural modifications, connecting to the home’s electrical and drain systems, and any repairs needed on the existing ductwork or air handler.
4. Portable Air Conditioners:
While portable ACs are designed for easy DIY setup, some mobile homeowners opt to have them professionally installed. Expect to pay $100-$300 for professional installation labor.
5. DIY Installation:
Handy homeowners can attempt DIY installation for window units or portables to save on labor costs. However, this is not recommended for central air or mini-splits due to the complexity and potential for safety issues or poor performance.
Other potential costs include labor, a concrete pad for the exterior condenser unit, updating the electrical panel or circuits to support the new AC system, and any required permits from the mobile home community. It is advisable to get quotes from multiple contractors.
Proper sizing and professional installation are critical for mobile homes to ensure safety and efficiency and to prevent moisture issues that can lead to structural problems. Factoring in upfront installation costs ensures your air conditioning investment performs as expected for years to come.