Does The RV Furnace Run Off Battery? Expert Tips And Tricks

Can an RV Furnace Run Off a Battery?


To avoid getting left out in the cold during your next camping trip, it’s important to understand how your RV furnace and batteries work together. In order to do so, we will discuss the sub-sections that explain what you need to know. First, we’ll go over the basics of RV furnaces and batteries so that you can understand how they work together. Then, we’ll dive into how much power an RV furnace needs and how it varies by the type of furnace you have.

Does The RV Furnace Run Off Battery

Image of an RV furnace with battery

Understanding RV Furnaces and Batteries

RV furnaces and batteries are connected. They make camping and outdoor fun possible. Knowing about them is important. 

Can an RV furnace run off a battery? Let’s find out.

RV Furnaces & Batteries:

ComponentDescription
RV FurnaceHeats using propane or electricity.
House BatteryPowers RV systems when not connected to external power.

Note: RV furnaces use electricity for ignition, but propane is the main heat source. The battery powers other electrical systems like lights and appliances. The furnace uses more power than other appliances, so it’s wise to monitor battery levels.

Pro Tip: Invest in a generator or solar panel setup. This will supply power without any hassle while camping. RV furnaces need a steady supply of electricity to stay warm.

How Much Power Does an RV Furnace Need?

RV furnaces are a must-have for your RV’s heating system, especially during winter trips.

How much power do they use? Let’s find out!

For Propane Forced Air Furnaces, it’s 20,000-40,000 BTU and around 7 Amps.

Electric Forced Air Furnaces consume 5,000-10,000 BTU and 13 Amps.

Catalytic Combustion Heaters use 3,000-8,000 BTU and no electric fan.

Other factors affecting the power consumption are exterior temperature and insulation quality. Be careful with your battery when using the furnace. Regular maintenance helps maintain optimal power usage.

Fun fact: According to a KOA Campgrounds survey in 2021, two-thirds of campers want access to recreational activities while still feeling at home.

Types of RV Furnaces and Their Power Needs

RV furnaces have various kinds, each with its own power needs. 

Be sure to know what your furnace requires before investing in one. 

Here’s a breakdown:

Furnace TypePower SourcePower Requirement
Propane FurnaceBattery/Propane tank connectionAverage 12 volts DC (may vary by model)
Ducted FurnaceBattery/Propane tank connectionUp to 12 volts DC (may vary by model)

Make sure you have enough battery capacity when using your furnace. Also, regular maintenance is essential for it to work well. If it’s dirty or broken, it may need more energy, leading to faster battery draining. For optimal efficiency, always check for dirt, unblocked vents, and clogged filters.

Power Sources for RV Furnaces


To keep your RV furnace running all night and keeping you warm in cold conditions, you need to know how to power it up all the time. In order to do that, you can use various power sources. I’ll tell you about my experience using shore power for heating, running and using a generator, and my dependence on house batteries.

Using Shore Power for Heating

Shore power‘s an important source of heating for RVs. You can use electrical appliances like furnaces, without draining your battery. Hook up to shore power and the RV furnace maintains the perfect temp, no matter the weather. 

But, check the electrical circuit powering your furnace can handle the voltage and amperage, without overload or tripping a breaker.

Reduce energy usage when using shore power for heating. This can prolong battery life and slash electricity costs. Adjust thermostat settings and insulate windows/doors for increased efficiency.

Some RV parks limit the use of shore power during peak demand periods. Before relying on shore power for heating, check with your campground or park for any time restrictions/limitations.

Running and Using a Generator

For an efficient and reliable way to keep your RV warm, you can use a generator. 

Here’s a simple guide:

  1. Make sure the generator is in good condition and has enough fuel.
  2. Plug in your RV power cord.
  3. Start the generator and wait a few minutes before turning on your furnace.
  4. Set the thermostat and turn the furnace on.
  5. Check fuel levels regularly.
  6. Turn off both when done.

Note: Generators running for long periods can cause environmental pollution and noise disturbances.

Pro Tip: Upgrade your RV battery system for clean, quiet power.

Dependence on House Batteries

As RVers, we often need our house batteries to power our furnace and keep us toasty during cold nights. But how does this work? Let’s find out.

The capacity and runtime of your battery depends on factors such as temperature, age and the efficiency of your furnace. A lithium-ion battery with a higher capacity will give you longer runtimes than lead acid batteries with a lower capacity.

It’s also important to consider the charging abilities of your RV. How quickly do your house batteries recharge? This is vital if you want to use your furnace for long periods without an external power source.

Recent studies show that lithium-ion batteries are more effective and better for RVers than traditional lead-acid batteries. Forbes magazine even states, “Lithium-ion outperforms traditional lead-acid batteries in virtually every camping or travel application.” So if you’re looking for a powerful source for your RV furnace, investing in a lithium-ion battery may be worth it.

In conclusion, understanding the type and capacity of your house battery is essential for a warm and cozy night’s sleep while on the road. Get ready to power up your RV furnace, because when it comes to staying warm on the road, battery capacity and charging are the real heroes.

Battery Capacity and Charging for RV Furnaces


To ensure continuous heating inside your RV furnace, you need a reliable power source, and in most cases, RV batteries are the best solution. For maximum efficiency, you need to understand the concept of AH and Amp Hour Batteries. Wondering how many batteries to use for your RV furnace? 

Let’s find out. And, to ensure a constant power supply, you must learn how to charge RV batteries effectively. Keep reading as we delve into the sub-sections and unravel the solutions.

Understanding AH and Amp Hour Batteries

To understand RV furnaces, it helps to know about Amp Hour (AH) batteries. This is a measure of a battery’s stored energy. The higher the AH rating, the longer the battery will last.

For example, common RV furnace models and their corresponding AH ratings are:

  1. Suburban NT-16SE – 10 AH
  2. Atwood 8012-II – 12 AH
  3. Olympian Wave 8 – 24 AH

Note: these values can change due to factors like usage and weather.

When it comes to charging for RV furnaces, charge in increments of no more than 20% of the total capacity. Also, use an appropriate charger to maintain battery health.

To keep your RV furnace in great shape, follow these tips:

  1. Get high-quality batteries with high AH ratings.
  2. Regularly charge your battery with the right charger.
  3. Use a battery monitor system to track charge levels and avoid overcharging or undercharging.
  4. Check for clogged vents or faulty parts and maintain your furnace.

Mastering batteries and charging can make your RV furnace adventures go off without a hitch!

How Many Batteries Do You Need for an RV Furnace?

Do you need to know how many batteries for your RV furnace? Let’s discover. 

It depends on the type and size of your furnace, your power needs, weather conditions and lifestyle.

Check out this table:

Furnace TypeUsage DurationEstimated Battery Capacity
PropaneOvernight50Ah
PropaneExtended150Ah
ElectricOvernight300Ah
ElectricExtended900Ah

Propane furnaces require less power than electric furnaces. So, if you have propane-fueled heating appliances, fewer batteries might work. But if you live in cold areas or have to use electricity for other things such as lighting or entertainment systems, more batteries may be needed.

High-capacity lithium-ion batteries help save power and extend battery life. You can also try energy-efficient solutions like insulation upgrades and natural heat sources. Stay warm and keep your batteries charged.

Charging Batteries for RV Heating

Do you know RV heating systems are powered by batteries? 

Here’s a guide on charging them:

  1. First, identify the capacity of your RV’s battery. Look in the user manual or contact the manufacturer.
  2. Get a power source like solar panels or a generator.
  3. Connect the power source to your battery with leads.
  4. Monitor voltage while it’s charging, then disconnect when full.
  5. Note: Different furnaces have different power needs, so make sure battery has enough capacity.

Fun fact: RV furnaces were made for use in aircraft in WWII. Harold Alcock invented the first one in 1930 so he could stay warm while camping in his Model T Ford.

For an extra twist: Invite Dracula to your RV and let him suck out the extra battery juice! No more vampire drains.

Other Factors Affecting RV Furnace Battery Use


To ensure that your RV furnace effectively runs off your battery with the least amount of power drain, there are other factors that you need to keep in mind. In addition to the battery type, size and capacity, and whether you have hooked up a generator or are reliant on shore power, you also need to consider other variables too. The thermostat settings and temperature control, any parasitic draws or other appliances being used, insulation of the RV, and proper ventilation and duct configuration all play a role in maximizing your RV furnace’s battery longevity.

Thermostat Settings and Temperature Control

Maintaining the right temp in your RV is key for comfort. It also impacts your furnace battery. If it gets colder, adjust the thermostat. But changing the temperature often takes a toll on your battery.

High settings make the furnace cycle on and off leading to battery wear. Lowering the temp conserves power and prolongs its life.

Insulation counts too. If your RV isn’t insulated, heating it is tougher and shortening battery life.

Pro Tip: To help your furnace battery in the cold, keep the thermostat steady and insulate windows/doors with styrofoam or weather stripping. Say goodbye to battery draining pests, unplug those unwanted appliances.

Any Parasitic Draws or Other Appliances Being Used

RV furnace battery use can be impacted by many things. These include parasitic draws and appliances that are left on. Lights, electronics on standby mode, and other small electrical loads can all drain power from the battery even if the furnace is not running. So, remember to switch off unused appliances and use stationary electricity sparingly.

Other factors can also affect RV furnace battery use. Extreme temperatures, age and type of battery, and regular maintenance, like cleaning terminals and checking connections all make a difference.

A family went on a long RV trip and forgot to turn off their inverter when they parked for the night. This drained their batteries overnight due to the inverter’s draw. In the end, they spent the day with dead batteries instead of exploring their destination. This serves as a reminder to RVers to be aware of parasitic draws and to be mindful of energy usage while on the road.

If your RV is like an oven in summer and refrigerator in winter, then it’s time to reassess your insulation, ventilation, and duct configuration or buy a good pair of thermals.

Insulation, Ventilation and Duct Configuration

To optimize RV furnace battery use, several factors must be taken into consideration. Insulation, ventilation and proper duct configuration are key.

Proper insulation can prevent heat loss and reduce how often the furnace needs to operate. Adequate ventilation is also important to avoid overheating and hazardous fumes. Duct configuration helps distribute hot air evenly, avoiding energy wastage.

Regularly inspect insulation and seal any gaps or holes. This keeps heat in and reduces battery demand. When the furnace is running, open windows and vents. This ensures proper airflow and prevents dangerous gases, such as carbon monoxide, from building up.

The duct system for distributing warm air should be inspected and cleaned regularly. This ensures efficiency and extends the furnace battery’s lifespan.

For even more efficiency, invest in a programmable thermostat and solar panels. The thermostat automatically regulates temperature settings and solar panels provide an alternative power source for heating during daytime hours.

Keep your RV furnace and battery system in top shape so you don’t end up as cold as a polar bear on a cold night in the woods.

Maintaining Your RV Furnace and Battery System


To keep your RV furnace running properly, you need to take care of both your RV battery and the furnace system. With the maintenance of your batteries through proper methods, you can provide power for your RV furnace for hours. Ensure optimal furnace exhaust operation by inspecting it regularly. Regular inspection and cleaning of the furnace’s blower motor and fan reduces parasitic power draws and maintains its longevity.

Properly Caring for Your RV Batteries

Maintaining your RV batteries is a must for a successful trip. 

Here’re some tips to keep them in peak condition:

  1. Check the water levels monthly. Top them up with distilled water if necessary.
  2. Clean the terminals with a baking soda mix once a year.
  3. Tighten all connections for the best voltage output.

When it comes to charging:

  1. Turn off all appliances for safety.
  2. Charge to full capacity every month.
  3. Don’t let the battery go below 50%.

And when storing:

  1. Store in a dry, cool spot out of direct sunlight.
  2. Fully charge before disconnecting if not in use for over a month.
  3. Check every few months for corrosion or damage.

In the end, proper care of your batteries will not only make your trips more enjoyable, but also safer. Plus, using a quality charger and maintaining consistent temperatures can help keep them in tip-top shape. Let’s face it, nothing beats a warm, toasted marshmallow.

Inspecting the Furnace Exhaust for Optimal Use

Ensure optimal use of your RV furnace exhaust for warmth during travels. 

Follow this three-step guide:

  1. Check for Blockages: Inspect the exhaust pipe for any obstructions like insects or debris.
  2. Test the Carbon Monoxide Detector: Press its test button before using the furnace.
  3. Verify Exhaust Ventilation: Ensure fumes flow outside through a designated outlet.

It saves you from potential dangers like carbon monoxide and keeps furnace efficiency at its best. Proper air ventilation reduces risk to all living beings due to harmful fumes. Conduct annual maintenance checks. Clean the blower motor and fan regularly to prevent it from sounding like a chainsaw.

Regular Inspection and Cleaning of the Furnace Blower Motor and Fan

Regular maintenance of your RV’s furnace blower motor and fan is key for keeping your heating system in good shape. If this task is neglected, you could experience rising energy bills, costly repairs and even safety risks. Here’s how you can inspect and clean your furnace blower motor and fan:

  1. Disconnect the power source for safety.
  2. Unbolt or detach the panel covering access to the blower so you can examine and remove it.
  3. Use a stiff brush or compressed air to clean dust and debris from the interior walls, impellers and ducts.
  4. Check motor bearings by spinning them with your fingertips. Replace them if needed.
  5. Inspect the fan blades and retrieve any debris that may be trapped.

Repeat this process twice a year, at the beginning and end of winter. Check for loose screws or bolts around the fan housing after cleaning. If you don’t, this could lead to excess noise and vibration, plus uneven air movement.

An RV owner recently had to pay over $5000 in repairs, plus weeks without heat during cold weather, all because he forgot to maintain his furnace. Don’t let negligence lead to expensive fixes. Taking care of your RV furnace and battery is like having a healthy relationship, communication is key, and a little TLC can go a long way.

Tips for RV Furnace Battery Use


To optimize your RV furnace’s battery use, you need to understand the heating system first. Portable power stations and solar panels can help you recharge the battery. 

Cold weather can be challenging, but some tips can save the day like using a space heater. Experienced RVers and members got some tips that could help you.

Understanding and Optimizing Heating System Use

Maximize your RV heating system by understanding and optimizing its function. Inspect and maintain the furnace battery to avoid malfunctions. Invest in a rechargeable battery for long-term savings.

Insulate your RV with Reflectix or Styrofoam for better heat retention during cold weather. RVLife says it can make a big difference. Welcome unlimited camping with portable power stations and solar panels! Wave goodbye to dead batteries.

Using Portable Power Stations or Solar Panels for Battery Recharge

Portable power stations and solar panels are great for powering your RV furnace battery. They offer flexible charging options, perfect for outdoor adventurers

Let’s break down the pros and cons of each:

Portable Power StationsSolar Panels
ProsEasy to store & transport- Quick charge time- Lots of charging optionsNatural energy source- No fuel or electricity needed- Low maintenance
ConsExpensive cost- Limited energy capacity- Need to rechargeNeeds sunlight to charge- High installation cost- Low output with clouds or low sunlight

It’s important to think about budget, energy needs, and your camping environment before deciding which one is best. Investing in a high-quality lithium-ion battery for your portable power station is recommended for long-lasting energy. 

Plus, make sure to monitor the voltage levels and disconnect batteries after they reach their full charge to ensure the battery life span.

And, lastly, RVing in cold weather? Dress in layers, bring extra blankets and always keep a bottle of whiskey on hand for warmth and morale.

Cold Weather Tips and Best Practices

Cold weather can be hard on RV batteries, so it’s important to ensure they’re charged up. Consider investing in a battery blanket or insulation to protect from extreme temperatures. Be mindful of how often you run your furnace and cranking up the heat will quickly drain power. Certain types of batteries perform better in the cold, like lithium-ion.

A lesson learned the hard way: a couple who set out expecting moderate fall weather wound up stranded in freezing temps without proper insulation. Prepare for cold weather when relying on an RV furnace battery.

And lastly, a tip from an experienced RVer: lock the bathroom door before taking off.

Expert Tips and Advice from Experienced RVers and Members

RV Furnace Battery Use can be daunting for beginners. Here are Expert Tips and Advice from Experienced RVers and Members to help you.

  • Make sure your battery is charged before using the furnace.
  • Use a voltmeter to accurately check battery power.
  • Invest in a high-quality deep-cycle battery.
  • Keep your furnace clean and well-maintained.
  • Consider solar panels or a generator for backup.

Be careful when handling batteries and chargers. Negligence can cause leaks or fires, putting people and property at risk.