What You’ll Learn
What factors matter most when buying a new mobile home furnace?
Learn which factors—like furnace size, BTU output, efficiency, and installation requirements—make the biggest difference when selecting a heating system for your mobile home.
In this post:
Why Are Mobile Home Furnaces Different?
Mobile homes are smaller than traditional homes, requiring less heat output and more compact systems. A mobile home furnace is a specialty unit designed to fit within tight spaces—usually in a closet rather than an attic or basement.
Because these units are harder to access for maintenance or repairs, it’s vital to choose a reliable, long-lasting model. Opting for a high-quality, energy-efficient furnace helps reduce the frequency of service calls.
Choosing the Right Size for Your Mobile Home
Start by calculating your mobile home’s square footage to determine how much heat you need. This affects both the size of the furnace and your propane usage (for example, whether you’ll need a 500- or 1000-gallon tank).
If you know your furnace’s make and model, you can check the manufacturer’s website for exact specifications. Otherwise, measure each room and add up the total square footage for accurate results.
Measure the Furnace Area
Next, measure the space where your furnace will be installed. Modern models may differ in size from older ones, so accurate measurements are crucial to ensure a proper fit.
Allow sufficient space for air circulation and ventilation. Inadequate ventilation can pose fire risks or reduce efficiency. Your HVAC professional can help confirm the right unit size for safe installation.
Calculate How Many BTUs You Need
BTU (British Thermal Unit) measures heat energy output. The number of BTUs your mobile home needs depends on the size of your home and your local climate.
- Warm climates: 25–30 BTUs per square foot
- Colder regions: 40–45 BTUs per square foot
Multiply your home’s square footage by the appropriate BTU rate to estimate your heating needs. Remember, the furnace’s actual output is roughly 80% of its rated BTU.
If your calculation shows 60,000 BTUs, you may need a furnace rated for around 75,000–80,000 BTUs to perform efficiently.
Choose Furnace Type
Once you know your size and BTU requirements, you can decide which fuel type best fits your mobile home.
Electric Furnaces
Electric furnaces are highly efficient (close to 100%) but can cost more to operate depending on local electricity rates. They’re compact and low-maintenance but may not be ideal for colder climates due to higher power use.
Propane Furnaces
Propane furnaces are among the most popular options for mobile homes. They’re affordable, safe, and deliver high-efficiency heating (some models up to 95%).
Propane is also easy to store in small tanks, making it a great fit for compact spaces.
Oil Furnaces
Oil furnaces generate heat by burning oil in a special combustion chamber. They generally operate at about 80% efficiency and have higher fuel and maintenance costs compared to propane systems.
However, they can provide powerful heat output in very cold climates.
Compare Quotes and Choose a Qualified Installer
Before buying a furnace, request multiple quotes and ask each contractor about delivery, installation, and warranty coverage.
Don’t choose solely on price—balance upfront costs with long-term energy savings.
Always verify that your installer is licensed, insured, and experienced in mobile home furnace installations.
Choosing a trusted partner like Kauffman Gas ensures safe installation and reliable service for years to come.
Final Thoughts
We hope this guide has helped you understand how to choose the best mobile home furnace for your comfort and budget.
For more guidance, check out our ultimate guide to propane in mobile homes and learn how to troubleshoot common propane furnace problems.
Contact Kauffman Gas today for expert propane furnace installation or service.
FAQs
How long does a mobile home furnace last?
Most mobile home furnaces last around 15 years. Regular maintenance, proper sizing, and choosing a high-quality model can extend the lifespan.
Can I install a standard home furnace in a mobile home?
No. Mobile home furnaces are specially designed for smaller, enclosed spaces and must meet HUD safety standards. Installing a standard furnace can be unsafe and may void your home’s compliance.
What’s the most efficient type of furnace for a mobile home?
High-efficiency propane furnaces often provide the best balance of cost, performance, and space-saving design. They offer strong heat output and are safe for smaller installations.
How do I determine the right furnace size for my mobile home?
Calculate the square footage and multiply by your region’s BTU factor (25–45 BTUs per sq. ft.). Your HVAC professional can verify sizing to ensure safety and efficiency.
Do propane furnaces work in all climates?
Yes. Modern propane furnaces perform efficiently even in cold climates, delivering reliable heat when paired with an appropriately sized tank and system.

