2024 Thor Windsport 31C vs 2025 Thor Fritz 20

Detailed Comparison

Both the 2024 Thor Windsport 31C and the 2025 Thor Fritz 20 have loyal followings, and for good reason. Here's an objective look at how they measure up.

Dimensionally, you're looking at 29.5 ft for the Thor Windsport 31C and 22.0 ft for the Thor Fritz 20. The Thor Windsport 31C carries an extra 19,600 lbs, which affects tow vehicle requirements and fuel economy.

The Thor Windsport 31C sleeps 8 while the Thor Fritz 20 accommodates 4. Slide-outs play a role in livability: the Thor Windsport 31C has 1 and the Thor Fritz 20 has 0.

For boondocking enthusiasts, tank sizes matter. Fresh water capacity goes to the Thor Windsport 31C at 93 gallons versus 15 gallons. Solar-wise, you get 400W on the Thor Windsport 31C and 200W on the Thor Fritz 20. Battery banks are 200 Ah and 600 Ah.

At $105,000 MSRP for the Thor Windsport 31C and $181,000 for the Thor Fritz 20, the Thor Windsport 31C saves you $76,000.

If you're traveling with a family, look for the model with more sleeping positions and better storage. Boondockers: look at the fresh water capacity and solar/battery systems — they determine how long you can stay out. If you're a weekend camper, don't over-buy — the smaller, lighter model may serve you perfectly.

Whichever you choose, you'll be getting a capable rig. Just make sure to inspect one in person before signing.