Dometic WH-10GEA
#6 in TankFull review
A 10-gallon aluminum tank heater that runs on propane and electric for a straight swap in an RV with the matching cutout.
Amazon $660$660
The Dometic WH-10GEA rates 3.3 among tank RV water heaters; the Fogatti InstaShower 9 Pro (FS10B1S) rates 2.9 among tankless ones. The Dometic WH-10GEA costs $79.99 less ($660 vs $739.99).
Prices were last checked November 4, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Fogatti InstaShower 9 Pro (FS10B1S)
#11 in TanklessFull review
A tankless heater rated 66,000 BTU for endless hot water in an RV that has the cutout for it.
Amazon $739.99$739.99
Scores side by side
These two sit in different type classes (tank and tankless), and each is scored against the reference points for its own class, so a rating says how well each does among its own type peers. How we rank explains each factor.
| Factor weight | Dometic WH-10GEA | Fogatti InstaShower 9 Pro (FS10B1S) |
|---|---|---|
| Overall rating | 3.3/5 | 2.9/5 |
| Value 40% | 50 $66 per gallon of tank ($660, 10 gal) | 26 $11.21 per 1,000 BTU ($739.99, 66,000 BTU) |
| Hot water output 35% | 50 recovery rate not published (neutral score used) | 84 up to 3.6 GPM |
| Warranty 25% | 50 2-year warranty | 0 warranty not published, scored as none |
Specifications
| Dometic WH-10GEA | Fogatti InstaShower 9 Pro (FS10B1S) | |
|---|---|---|
| Heat and water | ||
| Input capacity | 10,000 BTU | 66,000 BTU |
| Tank size | 10 gal | - |
| Maximum flow | - | 3.6 GPM |
| Fuel | Propane + electric | Propane |
| Fit | ||
| Weight | 22 lb | 30.9 lb |
| Warranty | ||
| Warranty | 2 years | - |