10 Best Rv Furnaces 2026 in the United States

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.

The Suburban RP-30FQ is a 30,000 BTU/h replacement core designed specifically for Suburban furnace models like the SF-25F and SF-30FQ. If you need a cost-effective solution to replace an old furnace, this product provides a seamless and budget-friendly option. It fits comfortably into your existing furnace cabinet, saving you time and the hassle of extensive installation work. The compact design of 20 x 17 x 7.5 inches maximizes space within your RV, making it a practical choice for smaller areas.

One of the standout features is its ease of installation, allowing you to slide the module into place without needing professional help. This is particularly advantageous for RV owners who appreciate DIY solutions. Additionally, the two-year limited warranty offers some reassurance regarding its reliability and quality.

While the RP-30FQ is an affordable alternative, it is designed exclusively for certain Suburban models, which may limit its appeal if you own a different type of furnace. It is important to ensure that your existing system is compatible and to consider potential downsides such as noise and the specifics of power consumption that might affect your decision.

The Dometic Medium 35K Furnace Essential is designed for medium-sized RVs needing a reliable heat source. Its hall effect sensor reduces mechanical wear by eliminating moving parts, which can mean fewer breakdowns over time. The furnace also benefits from an on-board soft start feature, helping to prevent breaker trips and lowering startup noise, ideal for quieter operation during chilly mornings.

Its one-piece tubular design improves heat transfer and airflow, offering better warmth and efficiency inside your RV. The airflow increase of about 18%-22% in ducted setups is a useful upgrade for more even heating. In terms of size, it measures 21 x 16.25 x 9.5 inches and weighs 33.6 pounds, making it moderately compact but not the lightest option available. The access door is sold separately, so consider that additional purchase for installation.

This unit incorporates modern technology focused on durability and smoother startups. It could be a suitable choice if you value these improvements in a furnace designed for medium-sized RVs.