
Mr. Heater is a brand of heaters from Enerco that has been delivering innovative technology and quality service since 1984. Mr. Heater offers a range of portable heaters, including the Portable Buddy and Big Buddy heaters, which are highly recommended for use with a fuel filter. The Mr. Heater Universal Propane Fuel Filter is designed to effectively filter out particulates and protect equipment. It is widely available for purchase through retailers such as Amazon, Tractor Supply Co., and Lowe's.
| Characteristics | Values |
|---|---|
| Brand | Mr. Heater |
| Product | Universal Propane Fuel Filter |
| Use | For Mr. Heater Portable Buddy and Big Buddy heaters |
| Hose Assembly | Most commonly used with bulk cylinder and hose assembly |
| Hose Models That Don't Require a Filter | F273704, F271802, F271803 |
| Ease of Installation | Easy to install, screws right on and fits the fuel line perfectly |
| Shell | Rugged all-metal |
| Functionality | Effectively filters out particulates |
| Warranty | Available |
| Price | $15.04 |
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What You'll Learn

Mr. Heater Universal Propane Fuel Filter
The Mr. Heater Universal Propane Fuel Filter is a highly recommended product for those purchasing the Mr. Heater Portable Buddy heaters and either the F273701, F273702, or F298802 (Lowes exclusive) Buddy hoses. It is also compatible with the Big Buddy heater. The filter is most commonly used with bulk cylinder and hose assembly.
Customers have reported that the fuel filter is easy to install, simply screwing it on and connecting it to the fuel line. It features a rugged all-metal shell and effectively filters out particulates, making it a good value-for-money purchase to protect valuable equipment.
Some customers have found the filter to be effective at keeping their heaters clean of contaminants, while others have mentioned issues with dirty propane. One customer noted that the filter works perfectly and eliminates the worry of clogged propane lines in cold weather.
The Mr. Heater Universal Propane Fuel Filter can be purchased from various retailers, including Amazon, Tractor Supply Co., and The Home Depot.
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Mr. Heater Portable Buddy Heaters
When purchasing a Mr. Heater Portable Buddy Heater, it is highly recommended to also buy the Mr. Heater Universal Propane Fuel Filter. This fuel filter is designed to effectively filter out particulates and keep your heater running smoothly. It is most commonly used with bulk cylinder and hose assemblies and is known for its ease of installation, simply screwing right on and fitting the fuel line perfectly. With its rugged all-metal shell, it is a valuable addition to protect your equipment.
The Mr. Heater Brand, owned by Enerco, has been delivering innovative technology and unmatched quality since 1984. Their Portable Buddy Heaters are a testament to their commitment to providing America's Most Popular Brand of Heaters. With their Portable Buddy Heaters, they have struck a chord with consumers, offering a safe and reliable heating solution for various settings, including campers, workshops, job sites, patios, and more.
It is important to note that the use of unauthorized accessories or attachments with the Mr. Heater Portable Buddy Heater is prohibited and may void the warranty. Always refer to the manufacturer's recommendations and authorized accessories to ensure the safety and longevity of your heater. The Mr. Heater Universal Propane Fuel Filter is one such authorized accessory that can enhance the performance and maintenance of your heater.
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Hose Assembly
Mr. Heater offers a range of hose assemblies with different lengths, connections, and features to suit various needs. The hose assemblies are designed to be used with propane heaters and come in different lengths, such as 5 feet (F273701) or 12 feet (F273702).
When using a Mr. Heater hose assembly, it is important to consider whether a fuel filter is required. Some hose models, such as F273704, are made from a different chemical compound of rubber that does not contain oily substances that can contaminate the fuel flow. Therefore, these hoses do not require a fuel filter. However, other hose models, such as F273701 and F273702, are recommended to be used with a disposable fuel filter (part no. F273699) to prevent oil and other particulates from clogging the heater.
The purpose of the fuel filter is to trap oily particulates and contaminants that can be squeezed from the rubber of the hose during high-pressure propane flow. These contaminants can build up inside the heater over time, causing gas flow problems. By using a hollow filter, the particulates stick inside, thereby filtering the fuel and protecting the heater.
It is recommended to start each heating season with a new filter and dispose of it at the end. Prolonged use of the same filter can cause it to fill up with particulates, leading to potential clogging issues in the heater. Additionally, priming the hose before use is suggested to ensure proper functionality.
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Fuel Filter Functionality
Mr. Heater offers a Universal Propane Fuel Filter for its Portable Buddy and Big Buddy heaters. This fuel filter is highly recommended when purchasing the Mr. Heater Portable Buddy heaters and either the F273701, F273702, or F298802 (Lowes exclusive) Buddy hoses. The filter is made of cast aluminium and features a rugged all-metal shell that effectively filters out particulates, including oil, that can build up in the heater and cause blockages.
The Mr. Heater fuel filter is designed to be used with bulk cylinder and hose assemblies. It screws onto the fuel line, and its hollow design causes particulates to stick inside it, thereby filtering the fuel. This is particularly important for the Buddy heater system, which has the regulator located at the heater rather than the tank. This setup results in high-pressure gas passing through the hose, which can squeeze rubber and pull oils and plasticizers from the hose material. These oily particulates can then get deposited in the lines of the heater, blocking the fuel flow.
The fuel filter helps to prevent these blockages and ensure the proper functioning of the heater. It is recommended to start the heating season with a new filter and dispose of it at the end of the season. Using one filter for too long can cause it to fill up with particulates, which will then pass through and begin building up in the heater. However, it is important to note that Mr. Heater offers three hose models that do not require a filter: the F273704, F271802, and F271803. These hoses are made from different materials or attach to low-pressure lines, so they do not have the same issue with oily substances getting into the fuel flow.
The Mr. Heater Universal Propane Fuel Filter has received positive reviews from customers, who find it easy to install and effective at filtering out particulates. It is rated 4.8 out of 5 stars by 154 reviewers on Tractor Supply Co.'s website and has an average of 4 out of 5 stars on Amazon, with 261 customers mentioning its functionality. Overall, the Mr. Heater fuel filter is an important accessory for maintaining the proper functioning of the brand's Portable Buddy and Big Buddy heaters.
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Fuel Filter Maintenance
The Mr. Heater Universal Propane Fuel Filter is highly recommended for users of the Mr. Heater Portable Buddy and Big Buddy heaters. This fuel filter is easy to install, with an all-metal shell that effectively filters out particulates.
Fuel filters should generally be replaced every 2 years or 24,000 miles, depending on the vehicle. Before replacing a fuel filter, park your car in a level, well-ventilated area and let the engine cool off. If you have a fuel-injection vehicle, depressurize your fuel system by opening your fuel filler cap and loosening it until you hear the pressure escaping. Then, locate and remove the fuel pump fuse or relay in your fuse box. Start the engine and pull out the fuse or relay—the engine should die within a few seconds. Next, open your hood and disconnect the negative terminal on your car battery to prevent any accidental sparks.
The fuel filter is typically located between the fuel tank and the fuel pump, and its exact position can vary depending on the car model. When replacing the filter, note its direction and position so that you can install the new one in the same way. Use a screwdriver or wrench to detach the fuel line from the filter, and quickly plug the open end with a rag or towel. Unscrew any attaching bolts and remove the fuel filter. Check the fuel lines for any signs of fraying, as these may also need replacing.
To install the new fuel filter, simply follow the above steps in reverse. Ensure you have the necessary tools, including a new fuel filter, new fuel line washers, open-end wrenches, screwdrivers, rags or old towels, safety glasses, vinyl gloves, a car jack, and jack stands. It is also important to avoid any flammable materials or ignition devices during the process.
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Frequently asked questions
Yes, Mr. Heater offers a Universal Propane Fuel Filter that can be purchased separately.
Yes, customers report that the fuel filter is easy to install, screwing right on and fitting the fuel line perfectly.
The Mr. Heater Universal Fuel Filter is for use with the Mr. Heater Portable Buddy and Big Buddy heaters. It is most commonly used with bulk cylinder and hose assembly.
The filter's hollow design causes oily particulates to stick inside it, thereby filtering the fuel. This prevents particulates from blocking the fuel flow in the Buddy heater.
Mr. Heater recommends starting the heating season with a new filter and disposing of it at the end of the season.











































