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10 Best Rv Furnaces 2026 in the United States

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Our Top Picks

#1

Winner

Suburban RP-35FQ 35,000 BTU/h RV Replacement Core for Suburban Furnace Series F-42F, SF-35F, SF-35FQ, SF-42FQ, SF-FQ (2610A)

Rating
10.0
Chosen by1,384
Fuel Type
Noise Level

Most important from
509 reviews

Fuel Type
The unit doesn’t seem to use as much gas, which is a bonus for extended trips.
Noise Level
Runs smoothly and is quieter than older models, making for a more pleasant camping experience.

The Suburban RP-35FQ Replacement Core is designed to offer a solid heating solution for RVs, particularly for those who already own compatible Suburban furnace models. With a BTU rating of 35,000, it's well-suited for heating larger RV spaces efficiently. This unit is made from high-quality materials, ensuring durability and reliability during your travels.

One of the key strengths of this furnace core is its compatibility with various Suburban furnace models, making it a versatile option for many. Its size and weight (20 x 12 x 7.5 inches and just 1 pound) also make it manageable for installation and maintenance. Additionally, the unit is relatively quiet during operation, which is a significant plus for those who prefer a peaceful environment while camping.

However, there are some considerations to keep in mind. While it boasts impressive heating capacity, potential users should verify compatibility with their existing systems, as it's specifically designed for certain Suburban models. The product's performance can also vary based on the insulation of your RV and outside temperatures, so those in extremely cold climates may need to assess if this unit meets all their heating needs. Lastly, while it appears to be designed for everyday use, installation complexity could be a factor for less experienced DIYers.

Rating
10.0
Chosen by1,384
Fuel Type
Noise Level

Most important from
509 reviews

Fuel Type
The unit doesn’t seem to use as much gas, which is a bonus for extended trips.
Noise Level
Runs smoothly and is quieter than older models, making for a more pleasant camping experience.
#2

Dometic DFMD30111 Medium Furnace - Low-Profile, Quiet LP Gas Furnace - Easy Maintenance with Superior Air Delivery

Rating
9.7
BTU Rating
Size and Weight
Fuel Type

Most important from
34 reviews

BTU Rating
Despite being rated slightly lower than the previous furnace, the Dometic DFMD30111 maintained a cozy 74F inside the RV even when temperatures outside dropped to 20F.
Size and Weight
Replacing an old furnace with the Dometic model proved straightforward, fitting perfectly into a 98 Damon Magnum 5th wheel and arriving swiftly.
Fuel Type
The switch from a problematic heater to the Dometic DFMD30111 was seamless, even with a minor adjustment for the relocated gas connector.

The Dometic DFMD30111 Medium Furnace is a robust option for heating medium-sized RVs and trailers. With a substantial 30,000 BTU rating, it promises to heat your space efficiently. The furnace uses LP gas, making it suitable for standard RV fuel setups, and operates on a 12V DC power supply, which is typical for RV systems.

A standout feature of the furnace is its quiet operation, as the reduced air turbulence design helps maintain a peaceful environment inside the vehicle. This is a significant advantage for users who prioritize a noise-free atmosphere. The compact size (20"D x 16.5"W x 7.38"H) and relatively light weight (29.2 pounds) allow for flexible installation and easy handling. The furnace is designed for easy maintenance, further adding to its user-friendliness.

Additionally, it boasts a durable stamped steel door and superior air delivery, ensuring even heat distribution throughout the vehicle. However, the furnace operates with a knob control, which might not be as convenient as digital thermostats for some users. The product is UL listed and certified for safe use in RVs, adding a layer of trust in its safety standards. This furnace is a solid choice for RV and trailer owners seeking a reliable, efficient, and quiet heating solution.

Rating
9.7
BTU Rating
Size and Weight
Fuel Type

Most important from
34 reviews

BTU Rating
Despite being rated slightly lower than the previous furnace, the Dometic DFMD30111 maintained a cozy 74F inside the RV even when temperatures outside dropped to 20F.
Size and Weight
Replacing an old furnace with the Dometic model proved straightforward, fitting perfectly into a 98 Damon Magnum 5th wheel and arriving swiftly.
Fuel Type
The switch from a problematic heater to the Dometic DFMD30111 was seamless, even with a minor adjustment for the relocated gas connector.
#3

Suburban SF Series Ducted Low Profile Furnace SF-35VHFQ 35,000 BTU/h LP Gas Furnace Model 2587A

The Suburban 2587A SF-35VHFQ RV Furnace is a solid choice if you're looking for a powerful heating solution for your RV. With a BTU rating of 35,000, this furnace is capable of providing ample warmth even in colder conditions, making it suitable for larger RVs or those who frequently travel to colder climates. One of its standout features is its slim design, at just 7.5 inches high, allowing it to be installed in less conspicuous areas, thus saving space inside the RV. Its compact exterior venting and direct spark ignition add to the convenience, ensuring quick and efficient operation.

A significant advantage of this model is the enhanced airflow, which reportedly improves by over 24% compared to some other models, potentially leading to more evenly distributed heat throughout your RV. Weighing in at 30.3 pounds, it is relatively lightweight, which is beneficial when considering the overall weight of your RV setup.

Buying Guide for the Best Rv Furnaces

Choosing the right RV furnace is crucial for ensuring comfort during your travels, especially in colder climates. An RV furnace is designed to provide heat to your recreational vehicle, making it a cozy and livable space regardless of the weather outside. When selecting an RV furnace, it's important to consider several key specifications to ensure you get the best fit for your needs. Understanding these specs will help you make an informed decision and enjoy a warm and comfortable RV experience.
BTU RatingBTU stands for British Thermal Unit, and it measures the heating capacity of the furnace. This spec is important because it determines how much heat the furnace can produce. Generally, RV furnaces range from 16,000 to 40,000 BTUs. For smaller RVs or moderate climates, a furnace with a lower BTU rating (16,000-20,000) may be sufficient. For larger RVs or colder climates, you might need a higher BTU rating (30,000-40,000). Consider the size of your RV and the typical weather conditions you will encounter to choose the right BTU rating for your needs.
Fuel TypeRV furnaces typically use either propane or diesel as fuel. This spec is important because it affects the furnace's efficiency and compatibility with your RV's existing systems. Propane furnaces are common and widely available, making them a popular choice. Diesel furnaces are more efficient and can be a better option if your RV already uses diesel for other appliances. Consider your RV's current fuel setup and your preferences for fuel efficiency when choosing the fuel type.
Power ConsumptionPower consumption refers to the amount of electricity the furnace uses to operate. This spec is important because it impacts your RV's overall power usage and battery life. RV furnaces typically require 12V DC power for the fan and ignition system. Lower power consumption is better for conserving battery life, especially if you plan to do a lot of boondocking (camping without hookups). Check the power consumption rating and ensure it aligns with your RV's power capabilities and your camping style.
Size and WeightThe size and weight of the furnace are important because they affect the installation process and the available space in your RV. This spec is crucial for ensuring the furnace fits in the designated area without causing any issues. Measure the space where you plan to install the furnace and compare it with the dimensions of the furnace. Also, consider the weight, as heavier units may require additional support. Choose a furnace that fits well in your RV and is easy to install.
Noise LevelNoise level refers to how loud the furnace operates. This spec is important for maintaining a comfortable and peaceful environment inside your RV. Some furnaces can be quite noisy, which can be disruptive, especially at night. Look for furnaces with lower noise levels if you are sensitive to sound or prefer a quieter atmosphere. Manufacturers often provide noise ratings, so compare these to find a furnace that operates quietly.
Thermostat CompatibilityThermostat compatibility indicates whether the furnace can be controlled by a thermostat. This spec is important for maintaining a consistent and comfortable temperature inside your RV. Some furnaces come with built-in thermostats, while others can be connected to an external thermostat. If you prefer precise temperature control, look for a furnace that is compatible with a thermostat. This will allow you to set and maintain your desired temperature easily.

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