Fogatti InstaShower Ultra: Which Version Is Right for You?
If you're shopping for a high-performance propane RV tankless water heater, FOGATTI's InstaShower Ultra lineup offers two powerful options. Both deliver up to 66,000 BTU and 3.9 GPM of on-demand hot water — but they differ in what's included and who they're built for. Let's break it down.
Option 1: Fogatti InstaShower Ultra (Without Door)
Price: $658.99 $819.99 — Save $161!
What's Included
- FOGATTI InstaShower Ultra — 66,000 BTU propane RV tankless water heater
- Unit only — no door included (ideal if you already have a compatible door or enclosure)
Key Specs
- 66,000 BTU / 3.9 GPM on-demand hot water
- ±1°F temperature variation for consistent comfort
- Operates up to 9,800 ft elevation
- 0.5 GPM minimum activation flow rate
- Windproof, waterproof, and freeze-resistant
Who Is This For?
This is the smart choice for RV owners who already have a water heater door or enclosure installed, or who want the most affordable entry point into the InstaShower Ultra lineup. You get the full 66,000 BTU performance at a lower price — no extras you don't need.
View InstaShower Ultra (Without Door) →
Option 2: Fogatti InstaShower Ultra Supreme Series (White Door & Mixing Tank)
Price: $899.99
What's Included
- FOGATTI InstaShower Ultra — 66,000 BTU propane RV tankless water heater
- White Door — clean, finished exterior look for your RV
- Mixing Tank — Supreme Series upgrade for enhanced temperature control
Key Specs
- 66,000 BTU / 3.9 GPM on-demand hot water
- ±1°F temperature variation for consistent comfort
- Operates up to 9,800 ft elevation
- 0.5 GPM minimum activation flow rate
- Windproof, waterproof, and freeze-resistant
- Includes white door & mixing tank (Supreme Series)
Who Is This For?
This is the complete package for RV owners who want everything in one box. The included white door gives your RV a polished, finished look, while the mixing tank adds an extra layer of temperature stability — ideal for families doing back-to-back showers or extended off-grid trips where consistent hot water matters most.
View InstaShower Ultra Supreme Series →
Quick Comparison
| Feature | Without Door | Supreme Series |
|---|---|---|
| BTU Output | 66,000 BTU | 66,000 BTU |
| Flow Rate | 3.9 GPM | 3.9 GPM |
| Temperature Variation | ±1°F | ±1°F |
| Max Elevation | 9,800 ft | 9,800 ft |
| White Door Included | ❌ | ✅ |
| Mixing Tank Included | ❌ | ✅ |
| Price |
$658.99 |
$899.99 |
| Ships To | USA, Canada, NZ, AU | USA, Canada, NZ, AU |
| Best For | Budget-conscious buyers with existing door | Complete all-in-one setup |
Our Verdict
Both versions deliver the same industry-leading 66,000 BTU / 3.9 GPM performance — the difference is in what comes in the box. If you already have a door and want to save $241, go with the Without Door version. If you want a complete, polished installation with the mixing tank included, the Supreme Series is worth every extra dollar.
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