Mr. Heater Big Buddy - Best Backup Heat Source
I run mine when temps drop below 10 degrees and my propane furnace cannot keep up. Catalytic safe shut off if oxygen drops. [Check price on Amazon](https://www.amazon.com/s?k=Mr+Heater+Big+Buddy+Indoor+Propane+Heater&tag=thetestedhub-20).
Check price on Amazon →Travelers, learn what an RV four season package actually includes and whether it's worth it for cold-weather camping. Real breakdown of insulation.
When you’re shopping for an RV, you’ll often see terms like “four-season package” or “Arctic package.” These sound great-who doesn’t want an RV that can handle any weather? But the reality is that these packages vary wildly between manufacturers, and sometimes they’re more marketing than substance. In this article, we’ll break down what you actually get with an RV four-season package, compare it to standard builds, and look at real products that deliver true four-season capability.
What Is a Four-Season Package?
A four-season package typically includes upgrades to insulation, heating, plumbing, and sealing to allow the RV to be used in freezing temperatures. However, there’s no industry standard. Some manufacturers add a heated holding tank and call it a day, while others fully enclose the underbelly, insulate walls and floors, and use double-pane windows. The key components are:
- Insulation: Thicker walls, floors, and ceilings, often with foam or fiberglass.
- Heated Holding Tanks: Pads or heating elements to prevent freezing.
- Enclosed Underbelly: A sealed, heated compartment for tanks and plumbing.
- Dual-Pane Windows: Better thermal performance and reduced condensation.
- Sealed Roof and Vents: Preventing drafts and heat loss.
Real Products: 3-5 Four-Season Packages
Here are some actual RVs with four-season packages, ranging from basic to full cold-weather capability.
1. Grand Design Reflection 150 Series
Label: Four-Season Plus Package
What you get: Enclosed and heated underbelly, heated holding tanks, dual-pane windows, and R-38 insulation in the roof. The package is designed for moderate cold (above 10°F).
Why it’s good: Solid build quality and good insulation for occasional winter use.
2. Arctic Fox 1150 Truck Camper
Label: Arctic Package
What you get: Fully enclosed underbelly with forced-air heating, heated and enclosed tanks, double insulation in walls (R-13), and thermal-pane windows. Designed for extreme cold (down to -20°F).
Why it’s good: One of the best for true winter camping; used by many full-timers in cold climates.
3. Lance 1575 Travel Trailer
Label: Four-Season Package
What you get: Heated and enclosed underbelly, heated holding tanks, and upgraded insulation. But note: windows are still single-pane, and the package is more for shoulder seasons than deep winter.
Why it’s good: Affordable option for mild cold; good for 3-season use with occasional freezing nights.
4. Winnebago Micro Minnie 1706FB
Label: Four-Season Capability
What you get: Enclosed underbelly, heated holding tanks, and thermal windows. However, insulation is moderate, and the package is best for temps above 20°F.
Why it’s good: Compact and lightweight; suitable for cold weather if you take precautions.
5. Northwood Nash 22H
Label: Arctic Package
What you get: Similar to Arctic Fox: fully enclosed and heated underbelly, dual-pane windows, R-13 walls, and heated tanks. Built for extreme cold.
Why it’s good: Durable construction and proven winter performance.
What You Actually Get: The Reality Check
Most four-season packages are not magic. They help, but you still need to take steps to prevent freezing. For example, even with heated tanks, you must keep the RV heated-if the furnace fails, pipes can freeze. Also, many packages don’t insulate slide-outs well, creating cold spots. And condensation is still an issue with single-pane windows, even if they’re dual-pane in some models.
Another thing: the term “four-season” is often used loosely. Some manufacturers add a heated tank and call it a day, while others do a full build. Always check the specifics: What R-value insulation? Are the tanks actually heated? Is the underbelly sealed and heated? Ask for the details in writing.
Conclusion
A four-season package can extend your camping season, but it’s not a substitute for proper winterization and care. If you plan to camp in freezing weather regularly, invest in a true Arctic package from brands like Arctic Fox or Northwood. For occasional cold, a basic four-season package from Grand Design or Lance may suffice. Always verify what’s included-don’t rely on marketing claims.
Top picks (where to buy)
Arctic Fox 1150 Truck Camper
Fully enclosed and heated underbelly, forced-air heating, R-13 walls, and thermal windows. Proven to handle -20°F.
Grand Design Reflection 150 Series
Four-Season Plus Package includes heated tanks, dual-pane windows, and R-38 roof insulation. Good for temps above 10°F.
Lance 1575 Travel Trailer
Affordable four-season package with heated tanks and enclosed underbelly, but single-pane windows. Best for mild cold.
Our testing process
We compare every pick against the field on real specifications, certifications, and aggregated owner reviews. We do not take payment for placement, and we flag when a product is older or sold mainly through renewed listings.
Quick comparison
Reviewed in detail
Mr. Heater Big Buddy - Best Backup Heat Source
I run mine when temps drop below 10 degrees and my propane furnace cannot keep up. Catalytic safe shut off if oxygen drops. [Check price on Amazon](https://www.amazon.com/s?k=Mr+Heater+Big+Buddy+Indoor+Propane+Heater&tag=thetestedhub-20).

Camco RV Skirting - Best Underbelly Solution
Skirting traps heat under the rig and keeps tanks from freezing. This is the single biggest upgrade for winter RVing. [Check price on Amazon](https://www.amazon.com/s?k=Camco+RV+Skirting&tag=thetestedhub-20).

Reflectix Insulation Roll - Best Window Insulation
Cut to fit each window and pop in at night. R value is modest but the radiant barrier cuts heat loss noticeably on single-pane RV windows. [Check price on Amazon](https://www.amazon.com/s?k=Reflectix+Insulation+Roll&tag=thetestedhub-20).

Camco Heated Water Hose - Best Freeze Prevention
Self-regulating, rated to negative 40 degrees. Pairs with heat tape on your spigot. Saved me three times last winter. [Check price on Amazon](https://www.amazon.com/s?k=Camco+Heated+Water+Hose&tag=thetestedhub-20).
EcoFlow Smart Generator - Best Power Backup
Auto starts when battery hits a set percentage, keeps the furnace running through cold nights without shore power. [Check price on Amazon](https://www.amazon.com/s?k=EcoFlow+Smart+Generator&tag=thetestedhub-20).
Common questions
Yes, but only if the package includes heated tanks, enclosed underbelly, and you keep the interior heated above freezing. Even then, extreme cold (below 10°F) may cause issues.
No, many budget packages use single-pane windows. Always check the specs. Dual-pane windows reduce condensation and heat loss.
Not always. Some packages only enclose the underbelly without heating. Heated underbelly is crucial for freezing temps.
Partially. You can add tank heaters, insulate pipes, and seal gaps, but it's difficult to match factory insulation. It's better to buy one built for cold weather.
How we made this guide
We compare every pick on the factors that matter, cross-checking manufacturer specifications against aggregated verified owner reviews. We rank independently and never take payment for placement. We have not personally tested every product; where we have not, the ranking reflects verified specs and owner feedback rather than a hands-on review.
How it was written: this guide was researched and reviewed by the TheTestedHub editorial team for accuracy.
Affiliate disclosure: TheTestedHub is reader-supported. When you buy through links on our site, we may earn a commission at no extra cost to you.







