RV Heating Systems: Service, Maintenance, and What Every Traveler Should Know
- Andres Hernandez
- Dec 10, 2025
- 2 min read
RV heating systems are often overlooked until the first cold night on the road — and by then, it’s usually too late. Whether you’re using a propane furnace, a heat pump, or a Dometic combination system, proper maintenance keeps your RV warm, safe, and reliable.
As a Dometic Authorized & Factory Trained dealer, here’s what every RV owner should know.
Types of RV Heating Systems
Most RVs use one of the following:
1. Propane Forced-Air Furnaces
The most common system. Uses propane and a blower to distribute warm air.
2. Heat Pump Systems (in rooftop A/C units)
Efficient and electric — no propane needed. Works well until outdoor temperatures drop below 40°F.
3. Hydronic Heating Systems
High-end coaches may use diesel-fired or electric hydronic systems for whole-coach heating and hot water.
Most Common RV Heating Problems
1. Furnace Won’t Ignite
Usually caused by:
Dirty burner
Failed ignitor
Weak blower motor
Faulty control board
Low propane pressure
2. Furnace Blows Cold Air
A classic issue caused by:
Blocked airflow
Poor return air
Thermostat problems
Incorrect voltage
3. Heat Pump Runs But Doesn’t Heat
Heat pumps fail in cold weather or when:
Reversing valve sticks
Refrigerant charge is low
Outdoor coil is dirty
4. Thermostat & Control Failures
RVs take vibration, heat, and dust — all of which destroy wiring and circuit boards over time.
Recommended RV Heating Maintenance
To avoid mid-trip breakdowns:
Every 90 Days
Clean return air filters
Check furnace vents
Before Every Winter Trip
Inspect propane system
Test furnace ignition
Run heat pump in heating mode
Check thermostat calibration
Annually
Remove furnace for deep cleaning
Inspect ducting
Check burner assembly
Clean heat exchanger
Test all safeties
Safety Note
A poorly maintained furnace can produce carbon monoxide.Annual professional inspection is not optional — it’s essential.
Why Choose a Dometic Authorized & Trained Technician
Dometic is the leader in RV climate control. Working with a factory-trained technician ensures:
Correct diagnostics
OEM parts
Longer system life
Safer operation
Warranty-safe repairs
Professional RV Heating Service
Americus Refrigeration provides complete RV heating service throughout:
Savannah • Jacksonville • Panama City • Destin
Whether your furnace won’t start or your heat pump isn’t keeping up, we’ll get your system running safely and efficiently.
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