Trystan Casey
RV furnaces are the primary heat source for motorhomes, trailers, and truck campers. They are essential for camping during the winter months, as they keep the interior warm and prevent essential water functions from freezing. While most RV furnaces run on propane, there are alternative options available, such as electric furnaces or diesel heaters. Electric furnaces require a constant power supply, while propane furnaces can operate independently of electrical power, making them a popular choice for boondocking or camping in areas without electricity. Diesel heaters are also an option, especially for smaller RVs, but they tend to be more expensive. Ultimately, the choice between a gas or electric furnace for your travel trailer depends on your personal preferences, the size of your RV, and the climate you plan to camp in.
| Characteristics | Values |
|---|---|
| Types of RV Furnaces | Electric, Propane/Gas, Hybrid |
| Power Source | Electrical, Combustible Fuel (Propane/Gas) |
| Ease of Use | Thermostat-controlled |
| Safety | Electric furnaces may be safer than gas furnaces |
| Reliability | Propane furnaces are more reliable in areas without electricity |
| Maintenance | Regular cleaning and checks for blockages are required |
| Size | Smaller travel trailers require smaller furnaces |
| Cost | $950 to $1200 for a motorhome furnace |
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What You'll Learn
Electric vs. propane furnaces
When it comes to choosing a furnace for your RV, there are two main types: electric and propane. Both have their advantages and disadvantages, and the right choice for you will depend on your specific needs and priorities.
Electric furnaces are a popular choice for those who want a safe, quiet, and efficient heating system. One of the biggest benefits of electric furnaces is that they produce no risk of carbon monoxide poisoning, which can be a dangerous issue with combustible fuel furnaces. Electric furnaces are also generally less expensive to buy and install than propane or gas furnaces, with a longer lifespan of up to 30 years. Additionally, electric furnaces are quieter than their propane or gas counterparts, making them a good option for those who prioritize a peaceful environment.
However, one downside to electric furnaces is that they may require backup power in extremely cold temperatures, as they draw heat from the outside air or ground. This can be a problem in areas where power outages are common. Additionally, while electric furnaces are initially cheaper, they may have higher operating costs than propane or gas furnaces.
Propane furnaces, on the other hand, offer high performance, increased efficiency, and dependability. Propane is widely available at gas stations, RV parks, and hardware stores, making it convenient to refill during travels. Propane furnaces are also independent of electrical power, making them a good choice for boondocking or camping in remote areas without electricity. Propane is also known for its environmental benefits, producing fewer greenhouse gas emissions than most other energy sources, and being non-toxic and non-poisonous.
However, propane furnaces may be more expensive to install and maintain, with potential delivery fees and higher upfront costs. Additionally, propane prices have been rising, which may impact the overall cost of running a propane furnace.
Ultimately, the decision between an electric or propane furnace for your RV will depend on your specific needs and budget. Both options have their advantages and considering factors such as efficiency, dependability, cost, and environmental impact will help guide your choice.
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Pros and cons of propane furnaces
Propane furnaces are the most common type of RV furnace. They are also used in residential settings. Here are some pros and cons of propane furnaces to help you decide whether it is the right choice for you.
Pros of Propane Furnaces
Propane furnaces are a great option if you are looking for a familiar, reliable, and efficient heating system. They are widely used, so most people will find the system familiar and convenient. You simply set the thermostat to your desired temperature, and the gas does the rest. Propane is a high-energy fuel that provides excellent heating performance, quickly warming up spaces even in cold weather.
Propane is also a good option if you want a dependable and efficient source of energy that can be installed anywhere on your property. It is stored in a tank, which can be set up anywhere, and does not require a direct line from the gas company. This makes it a good choice for heating outbuildings in locations far from a natural gas connection.
Propane is widely available at gas stations, RV parks, and some hardware stores, making it convenient to refill the fuel tank during travels. Propane furnaces also consume less electrical power compared to electric furnaces, which is advantageous for RVs with limited battery capacity.
Cons of Propane Furnaces
The biggest disadvantage of a propane heating system is the maintenance required. If you own the tank, you are responsible for regular inspections and fixing any problems, such as leaks or corrosion. You might also have to replace the tank eventually, which can be expensive. If the energy company owns your tank, you will likely have to pay a monthly rental fee.
Another consideration is the upfront cost of switching to propane. Furnaces and appliances can be expensive to replace, and while propane may save money in the long run, the initial costs of new appliances can be high.
Additionally, propane burns with fumes and can be dangerous if not properly maintained. Carbon monoxide, for example, can lead to death if inhaled in large doses, so it is important to regularly test your carbon monoxide detector and ensure it is in good working order.
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How to maintain an RV furnace
RV furnaces are the primary heat source for motorhomes, trailers, and truck campers. They are usually propane-fueled, but some use electricity or diesel heat. Maintaining your RV furnace is essential, especially if you plan to camp during the winter months. Here are some detailed, direct, and instructive tips to help you maintain your RV furnace and ensure safe and proper operation:
Understand How Your RV Furnace Works
Before you can maintain your RV furnace, it's important to understand how it works. The majority of RV furnaces are direct spark forced-air furnaces with a sealed combustion chamber that is vented outside. They operate on 12-volt DC power, either from a 12-volt battery or the RV's converter when plugged into an electrical source. The motor uses an impeller wheel to pull outside air for combustion, and the exhaust gas is then forced back outside. A blower motor circulates hot air through a network of ducts inside the RV.
Regularly Inspect and Clean the Vents
It is important to regularly inspect and clean the intake and exhaust vents on your RV furnace. Any obstruction in the vents can affect proper combustion and lead to dangerous situations. Insects, spider webs, and mud dauber nests can block the vents, so keep an eye out for these and have them cleaned by an authorized RV service center if needed. Soot around the exhaust vent indicates incomplete combustion, which can expose you to carbon monoxide. Therefore, it is crucial to inspect the vents regularly and ensure they are clear of any obstructions.
Maintain Proper Airflow
Ensure that the vents are never blocked by other appliances or clutter. Maintaining proper airflow is essential for the efficient and effective operation of your RV furnace. Keep the area around the furnace clear to allow for adequate airflow and optimal performance.
Test and Maintain Safety Equipment
It is crucial to test and maintain safety equipment such as carbon monoxide detectors, LP gas regulators, and propane leak detectors. These devices help ensure your safety and should be tested regularly. Replace batteries as needed and consult a professional if you have any concerns.
Annual Professional Inspection
It is recommended to have your RV furnace inspected by a qualified technician at least once a year. A professional can identify and resolve any issues, ensuring the safe and proper operation of your furnace. They can also clean the burner, which is recommended at least annually to prevent incomplete combustion.
Other Troubleshooting Tips
- Ensure you have enough propane and that the container valve is open.
- Check that the propane tanks and LP detector (if applicable) are turned on.
- Reset the system by turning it off and on again if it fails to ignite after three attempts.
- Keep the area around the return air compartment clean to prevent dust, food, and debris from interfering with the "sail switch."
- Vacuum the return area regularly, especially during cold weather, to prevent dust buildup.
- Ensure your 12-volt coach battery is fully charged, and check the 12-volt fuse panel for any blown fuses.
- Consult your owner's manual for schematics and specific maintenance instructions for your RV furnace model.
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How to troubleshoot an RV furnace
Most RV furnaces run on propane, although electric alternatives are available. Propane furnaces are popular because they operate independently of electrical power and use a familiar, tried-and-tested technology. However, electric heaters can be useful for warming up smaller areas of your RV without having to run the furnace.
- Check that you have enough propane and that the container valve is open.
- Check that the propane tanks and the LP detector are turned on.
- If your furnace has tried to ignite three times unsuccessfully, it will give you a fault light and go into appliance lockout. Reset the system by turning off the furnace at the thermostat and turning it on again to allow the ignition process to restart.
- If your blower never shuts off, but your burner is cycling on and off at regular intervals, your RV should be inspected by a qualified technician immediately. This is a symptom of an overheating limit switch, which could be caused by blockages, faulty components, or LP gas adjustment issues.
- Check the exterior exhaust vent to make sure that it isn't blocked with spider webs or mud dauber nests—a telltale sign of this is soot on the side of the RV exterior.
- To check your regulators, start up the furnace and look at the flame in the burner. It should be blue with no yellow. If this isn’t the case, you may have an LP gas regulator on the way out. Soot around the furnace exhaust vent suggests an obstruction to the oxygen supply to the burner. Check for and remove any obstructions and adjust the airflow to the burner flame.
- If you can access your foil ductwork, check that it’s straight and free of kinks. If it’s expanded over the trim off any excess.
- Furnace floor registers should be open, uncovered, and free of debris. If blocked, back pressure can be put on the system and possibly cause the burn chamber to overheat.
- If your furnace doesn't kick on, it could be due to loose wiring connections or circuit board problems.
For electric heaters, make sure you have enough power to run them.
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The cost of an RV furnace
There are two main types of RV furnaces: electric and propane. Propane furnaces are popular because they operate independently of electrical power, making them ideal for boondocking or camping in remote areas without electricity. Propane fuel is also widely available at gas stations, RV parks, and hardware stores, making it convenient to refill during travels. However, electric furnaces may be more suitable for certain situations, and some RVs may have multiple furnaces.
When shopping for an RV furnace, it's advisable to look for a model with an exterior access panel for easier servicing. Not all RVs, especially entry-level travel trailers, have this feature. Additionally, it's crucial to consider the ongoing costs associated with the furnace, such as fuel and maintenance expenses.
Overall, when considering the cost of an RV furnace, it's essential to factor in the size of the unit, the type of fuel, the brand, and the seller. By doing thorough research and considering your specific needs, you can find the best furnace for your RV at a reasonable price.
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Frequently asked questions
Travel trailers can use propane, electric, or diesel furnaces. Propane furnaces are the most common, but electric furnaces are available as an alternative.
Propane furnaces are familiar, reliable, and efficient. They operate independently of electrical power, allowing use in areas without electricity. Propane is also widely available at gas stations, RV parks, and hardware stores. However, propane furnaces burn expensive and fume-emitting propane.
Electric furnaces are climate control systems that keep your RV warm without burning propane. They are a good option when you just need a little extra heat in one area. However, they require electricity to work and use a lot of electricity.
