Composting toilets have become a must-have upgrade for RV owners and van lifers who want freedom from black tanks, dump stations, and constant maintenance. The best models today are odorless, water-free, and built for mobile living.
This guide breaks down the best composting toilets for RV and van life, including top models, key features, and how to choose the right one for your setup.
Quick Answer: What Is the Best Composting Toilet for RV Use?
The best composting toilets for RV and van life are:
- Nature's Head Composting Toilet – Best overall reliability
- Separett Villa 9215 AC/DC – Best for full-time van/RV living
- Air Head Dry Toilet – Best compact marine/RV option
- OGO Compost Toilet – Best modern/automatic mixing
- Cuddy Portable Compost Toilet – Best for small vans
Best Composting Toilets for RV & Van Life
1. Nature’s Head Composting Toilet (Best Overall)
The Nature's Head Composting Toilet is widely considered the gold standard in the RV and marine space.
Why it stands out:
- Proven reliability with thousands of installs
- Excellent odor control with built-in ventilation fan
- Simple hand-crank composting system
- Long intervals between emptying
Best for: RV owners who want a set-it-and-forget-it solution
2. Separett Villa 9215 (Best for Full-Time Living)
The Separett Villa 9215 is a premium urine-diverting toilet designed for continuous use.
Why it stands out:
- No manual mixing required
- High-capacity waste system
- AC/DC powered ventilation fan
- Feels closest to a traditional toilet
Best for: Full-time RVers or van lifers who prioritize comfort and convenience
3. Air Head Composting Toilet (Best Compact Marine Option)
The Air Head Composting Toilet is a compact, rugged option originally designed for boats.
Why it stands out:
- Smaller footprint than competitors
- Durable marine-grade construction
- Flexible installation options
Best for: Tight RV layouts or van builds where space is limited
4. OGO Compost Toilet (Best Modern Design)
The OGO Compost Toilet brings a modern, user-friendly approach.
Why it stands out:
- Push-button electric mixing system
- Sleek, compact design
- Easy waste removal system
Best for: Van lifers who want minimal effort and modern convenience
5. OGO Cuddy Portable Compost Toilet (Best for Small Vans)
The Cuddy Portable Compost Toilet is designed for ultra-compact setups.
Why it stands out:
- Extremely small footprint
- Lightweight and portable
- Ideal for stealth vans or weekend builds
Best for: Minimalist van builds and space-constrained setups
How to Choose the Right Composting Toilet
1. Size & Fit
- Measure your available space carefully
- Consider ceiling height (important for taller units)
2. Power Requirements
- Some units require 12V or AC power for fans
- Others are fully manual
3. Waste Capacity
- Larger units = fewer emptying trips
- Smaller units = better for weekend trips
4. Ease of Use
- Manual crank vs electric mixing
- Urine-diverting vs traditional composting
5. Ventilation
- Proper venting is critical for odor control
Composting Toilet vs RV Toilet (Why Upgrade?)
Composting Toilets:
- No black tank required
- No water usage
- No dump station visits
- Environmentally friendly
Traditional RV Toilets:
- Require water and plumbing
- Depend on dump stations
- Higher maintenance over time
Real-World Insight (Buyer Behavior)
Based on current RV and van life trends:
- Most first-time buyers choose Nature’s Head for reliability
- Full-time travelers upgrade to Separett for comfort
- Van builders increasingly choose OGO for modern design and ease
Best Composting Toilet by Use Case
- Best Overall: Nature’s Head
- Best for Full-Time Living: Separett Villa
- Best for Small Spaces: Air Head
- Best Modern Option: OGO
- Best Ultra-Compact: Cuddy
FAQs
Do composting toilets smell in an RV?
No. When properly installed with ventilation, they are virtually odorless.
How often do you empty them?
- Solid waste: every 2–4 weeks
- Liquid container: every 1–3 days
Do you need power?
Some models require 12V for a fan, but many still function manually.
Are they legal in RVs?
Yes, composting toilets are widely used in RVs, vans, and tiny homes.
Final Recommendation
If you want a proven, low-maintenance solution, go with Nature’s Head.
If you’re living full-time and want maximum comfort, Separett Villa is worth the upgrade.
For van builds, especially tight spaces, OGO or Cuddy are leading the shift toward modern, compact sanitation.
Explore the best composting toilets for your RV or van setup at PowerGen Store and eliminate the need for dump stations, plumbing, and water waste—while gaining total off-grid freedom.
Shop PowerGen Store
