Collection: Mobile Home AC & Coil Systems

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What is a Mobile Home AC Coil System?

Unlike standard residential coils, these units are engineered to sit atop or within mobile home-specific blowers, acting as the heat exchanger where refrigerant absorbs warmth from your home's air.

Choosing the right collection is vital because mobile home ductwork is often smaller and more restrictive than traditional stick-built homes. Our systems ensure that the static pressure remains balanced, preventing premature compressor failure and ensuring consistent cooling across every room. To make your installation seamless, our collections include or have available the necessary line sets, control wires, and mounting brackets required for a complete setup.

Technical Highlights & Specifications

For HVAC buyers looking for specific data-driven performance:

  • Efficiency Ratings: Our systems are compatible with current SEER2 and HSPF2 standards, ensuring your mobile home meets modern energy-saving requirements while reducing monthly utility costs.
  • Refrigerant Updates: We have transitioned our inventory to include modern, compliant refrigerants like R454B and R32, ensuring your new system is future-proofed against upcoming environmental regulations.
  • Voltage Options: These systems typically operate on specific residential circuits; always verify if your existing furnace and outdoor unit require 115V or 230V power before finalizing your selection.
  • Coil Composition: We feature all-aluminum or high-grade copper coils designed to resist formicary corrosion, a common issue in humid environments.

Operational Benefits

For residential owners, these systems offer a significant increase in indoor air quality and humidity control, which is essential for preserving the structural integrity of manufactured homes. The high-efficiency design means quieter operation and fewer temperature swings between cycles. For commercial or multi-unit property managers, our mobile home coil systems provide a cost-effective, "drop-in" replacement solution that minimizes labor time and reduces tenant downtime during peak summer months.

Find Your Perfect Match: The HVAC Supplies BTU Sizing Guide

Selecting the correct BTU (British Thermal Units) capacity is the most critical step in ensuring your ductless system operates at peak efficiency while providing maximum comfort. At HVAC Supplies, we aim to eliminate the guesswork; an undersized unit will run constantly and drive up utility bills, while an oversized unit will cycle too frequently, leading to poor dehumidification and unnecessary wear.

Below is our comprehensive sizing guide designed for HVAC Supplies customers, featuring direct links to our high-efficiency mini split collections.

6,000 BTU
150 – 250 sq. ft.
Small bedrooms, home offices, nurseries, or high-efficiency “tiny homes”.
9,000 BTU
250 – 450 sq. ft.
Standard bedrooms, guest rooms, mid-sized offices, and insulated sunrooms.
12,000 BTU
450 – 600 sq. ft.
Master bedrooms, small living rooms, kitchens, or studio apartments.
18,000 BTU
600 – 1,000 sq. ft.
Large living rooms, master suites, or insulated 1-car garages.
24,000 BTU
1,000 – 1,200 sq. ft.
Open-concept main floors, 2-car garages, or small retail boutiques.
28,000 BTU
1,200 – 1,400 sq. ft.
Large open floor plans, community halls, or multi-room office suites.
30,000 BTU
1,400 – 1,500 sq. ft.
Large workshops, pole barns, or medium-sized commercial floor plans.
36,000 BTU
1,500 – 1,700 sq. ft.
Large residential open areas, showrooms, coffee shops, or fitness studios.
42,000 BTU
1,700 – 1,900 sq. ft.
Commercial spaces, restaurants, medical clinics, or church halls.
48,000 BTU
1,900 – 2,100 sq. ft.
Very large open residential areas, small warehouses, or banquet facilities.
55,000 BTU
2,100 – 2,400 sq. ft.
Large retail stores, high-ceiling industrial spaces, or commercial grow rooms.
60,000 BTU
2,400 – 2,800+ sq. ft.
Large warehouses, multi-office buildings, or massive high-ceiling estates.

When to "Size Up" Your Unit

While the table above provides a baseline for standard rooms, specific environmental factors at your job site may require a higher BTU capacity:

High Ceilings: If your ceilings are 10 feet or higher, you are cooling a larger volume of air. We recommend increasing your BTU choice by 20%.
Insulation Levels: For older buildings with single-pane windows or poor insulation, opt for the next size up to ensure the system can maintain the set temperature.
Kitchen Installations: Cooking appliances generate significant heat. If the unit is for a kitchen area, add 4,000 BTUs to your total calculation.
Heavy Sun Exposure: Rooms with large south-facing windows act like greenhouses. Increase your BTU capacity by 10-15% for these spaces.
High Occupancy: If the area regularly hosts more than two people (such as a conference room), add 600 BTUs per additional person.

Frequently Asked Questions

Q. Can I use a standard residential AC coil in my mobile home? 

A. Generally, no. Mobile home furnaces have specific width and height restrictions, and the airflow (static pressure) requirements differ from standard homes. Using the wrong coil can lead to coil icing or blower motor burnout.

Q. How do I know if I need a 115V or 230V system?

A. You should check the data plate on your current indoor blower or furnace. While most outdoor condensers are 230V, some mobile home indoor components run on 115V. Mixing these will cause electrical failure.

Q. Are these coils compatible with the new 2025/2026 refrigerant standards?

A. Yes, our inventory is updated to include systems compatible with R454B and R32 to ensure compliance with the latest environmental mandates and ease of future servicing.

Q. Do your mobile home coil systems come with the TXV (Thermal Expansion Valve) pre-installed?

A. Many of our premium coils come with a pre-installed TXV matched to the system’s capacity, though some models may use a fixed orifice. Check the specific product specifications for the metering device details.

Q. What size line set do I need for a mobile home coil replacement?

A. This depends on the tonnage of your system and the distance between the indoor coil and outdoor unit. Most mobile home systems use a 3/4" or 7/8" suction line and a 3/8" liquid line.