
Propane is a fantastic energy source for camper fridges, especially when you're trying to conserve electrical power. However, it's essential to understand how much propane your fridge consumes to ensure you don't run out of fuel unexpectedly. The amount of propane used depends on various factors, including the size and age of the fridge, ambient temperature, and how efficiently you pack your fridge.
A typical 10-12 cubic foot RV fridge will burn about 1.5 pounds of propane per day. However, older, larger, or less efficient models may consume significantly more. For example, a 20-pound propane tank might last an older RV fridge less than two weeks, whereas a newer, more efficient model could make it last for over a month.
To reduce propane consumption, regular maintenance is key. This includes keeping the fridge level, ensuring proper ventilation, and avoiding overpacking. By understanding your fridge's propane usage and taking steps to use it efficiently, you can enjoy the benefits of propane without worrying about running out of fuel.
Characteristics | Values |
---|---|
How much propane does a camper fridge use? | It depends on the age, size, and ambient temperature of the fridge. Generally, a 10 to 12 cubic foot RV fridge will burn about 1.5 pounds of propane per day. |
How does a propane fridge work? | Propane fridges use an evaporation process that extracts heat and cools down the interior of the fridge. |
What factors determine how much propane a camper fridge uses? | The two most significant factors are the size and age of the fridge. Other factors include the ambient temperature, how the refrigerator is packed, and how frequently the fridge is opened. |
Can an RV fridge run on propane while driving? | Opinions vary. Some people say it is dangerous and can cause fires, while others say it is safe as long as basic safety precautions are followed. |
What You'll Learn
Propane fridges use electricity and propane
Propane fridges, also known as absorption refrigerators, use electricity and propane. They are commonly used in recreational vehicles (RVs), cabins, and lake houses, or anywhere without easy access to electricity. These fridges are economical and do not require an external power source.
The propane refrigeration process, also known as "absorption cooling", was first developed by Michael Faraday in 1824. The underlying theory remains the same today as it was then. A propane flame heats water and ammonia to their boiling point in a sealed generator. The now-gaseous mixture rises into a condensing chamber, where it cools and returns to a liquid state. This liquid then flows into another chamber, the evaporator, where a chemical reaction occurs, absorbing heat from inside the refrigerator. This self-contained system is reliable and does not rely on mechanical or moving parts.
While propane fridges do not require electricity to function, they do use a small amount (12V) to power the circuit board that controls the fridge's operation. The amount of propane used by an RV fridge depends on various factors, including ambient temperature, how frequently the fridge is accessed, and the materials inside. The size and age of the fridge are also significant factors, with newer units being more thermally efficient and consuming less propane.
On average, a 20-pound propane tank can power an older RV fridge for around 11 days. However, this duration can vary depending on several variables, such as the size of the fridge, its age, and the ambient temperature. For example, a highly efficient 8 cu ft RV fridge can run for approximately 280.6 hours (around 11.5 days) on a full 20-pound propane tank.
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Propane fridges use heat to drive the cooling cycle
The propane flame heats a mixture of water and ammonia in a generator. This causes the water and ammonia to turn into a gas, which rises into a condensing chamber. Here, the gas cools and returns to a liquid state. This liquid then flows into another chamber, the evaporator, where it mixes with hydrogen gas. A chemical reaction occurs, which pulls heat from inside the refrigerator, cooling the interior. The ammonia is then transformed back into a gas, and the cycle begins again.
This process was first developed by Michael Faraday in 1824, and the underlying theory remains the same today. The system is self-contained and doesn't rely on mechanical or moving parts, meaning these units are reliable for years.
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Propane usage depends on fridge size and age
The amount of propane used by a camper fridge depends on various factors, including the outside temperature, how the refrigerator is packed, and the type of food placed inside. However, the two most significant factors are the size and age of the fridge.
A larger fridge will require more propane to cool down compared to a smaller unit. Newer models are more thermally efficient, so they don't need to cycle as often and, therefore, burn less propane. An older fridge may consume more propane due to reduced efficiency over time.
On average, a 10 to 12 cubic foot RV fridge will burn about 1.5 pounds of propane per day. However, this can vary depending on the ambient temperature and how well the fridge is maintained. For example, a 20-pound propane tank can last anywhere from a week to over two weeks, depending on these factors.
To reduce propane consumption, regular maintenance is essential. This includes keeping the fridge level, ensuring proper ventilation, and regularly cleaning the cooling units and condenser fins. Additionally, pre-cooling the fridge before use and packing it wisely can also help optimize propane usage.
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Propane usage depends on ambient temperature
The amount of propane used by a camper fridge depends on a number of factors, one of the most significant being the ambient temperature. The hotter the outside temperature, the more propane the fridge will use. This is because the fridge has to work harder to cool the air inside itself. Therefore, it is advisable to park your RV so that the side with the fridge is shaded and on the coolest side.
Other factors that influence propane usage include the size and age of the fridge, how full the fridge is, the temperature setting, and how often the door is opened. For example, a full, older 6 cubic foot Dometic RM2652 fridge can use close to 20 lbs of propane a week in 90-degree Fahrenheit weather or higher. On the other hand, a newer, more efficient 8 cubic foot Dometic DM 2882 fridge rated at 1,500 BTUs per hour can run for approximately 61 hours on one gallon of propane.
Additionally, it is important to note that RV fridges require regular maintenance and care to ensure optimal performance and reduce propane consumption. This includes keeping the RV level, regularly cleaning the cooling units and condenser fins, and making sure the outside vent is not blocked.
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Propane fridges need regular maintenance
Propane fridges are a great option for those who are boondocking or trying to conserve electrical power. However, they require regular maintenance to ensure they are working efficiently and safely.
Firstly, it is important to ensure that the flame within the burner box is the correct size and colour. A blue flame of 1 to 2 inches indicates that the right amount of heat is being produced to cool the fridge. A yellow or orange flame indicates a build-up of dirt or soot, which is common in propane fridges as dust, lint and insects can collect in the burner box. Therefore, it is recommended to check the colour of the flame every six months and clean the fridge if necessary.
To clean a propane fridge, first shut off the gas supply and open the fridge access door to wipe away any debris. Then, clean the flue baffle, flame tube cover, the orifice, burner and propane tank fittings. It is important to ensure that the unit is cool before using compressed air to blow out the flame tube, as compressed air is highly flammable. The orifice can be cleaned with alcohol, and the outside of the fridge can be waxed to prevent scratches and rust.
In addition to cleaning the flame, it is important to regularly maintain the fridge by checking for dust and debris build-up, especially at the bottom of the fridge, behind it, and in the outside vent. The cooling units and condenser fins should also be cleaned, and the RV should be kept as level as possible to ensure the fridge runs efficiently.
By regularly maintaining a propane fridge, users can ensure it operates efficiently and lasts longer.
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Frequently asked questions
A camper fridge will use around 1.5 pounds of propane per day. This amount will vary depending on the size, age, and ambient temperature of the fridge.
The two most significant factors are the size and age of the fridge. Newer units are more thermally efficient and will use less propane. Other factors include the ambient temperature, how the refrigerator is packed, and how often the fridge is opened.
There are several ways to reduce propane consumption:
- Regular maintenance: Keep the fridge clean and free of debris.
- Level parking: Park your RV on a level surface to prevent overheating and ensure efficient cooling.
- Pre-cooling: Cool the fridge before putting food inside.
- Efficient packing: Don't overpack the fridge, and leave room for air circulation.
- Shaded parking: Park in the shade to reduce the cooling load.
There are mixed opinions on this. Some sources advise against it, citing safety concerns and insurance guidelines. Others argue that RV fridges are designed to run on propane while driving and that it is generally safe as long as other propane appliances are turned off.