KingRVer 6 Gallon Propane/Electric
#16 in TankFull review
A 6-gallon steel tank heater that runs on propane and electric for a straight swap in an RV with the matching cutout.
Amazon $399.99$399.99
The KingRVer 6 Gallon Propane/Electric rates 2.8 among tank RV water heaters; the Fogatti InstaShower 7 (FS07B1S) rates 2.5 among tankless ones.
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 7 (FS07B1S)
#17 in TanklessFull review
A tankless heater for endless hot water in an RV that has the cutout for it.
Amazon $399.93$399.93
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 | KingRVer 6 Gallon Propane/Electric | Fogatti InstaShower 7 (FS07B1S) |
|---|---|---|
| Overall rating | 2.8/5 | 2.5/5 |
| Value 40% | 50 $66.67 per gallon of tank ($399.99, 6 gal) | 50 BTU rating not published (neutral score used) |
| Hot water output 35% | 50 recovery rate not published (neutral score used) | 26 up to 2.5 GPM |
| Warranty 25% | 0 warranty not published, scored as none | 0 warranty not published, scored as none |
Specifications
| KingRVer 6 Gallon Propane/Electric | Fogatti InstaShower 7 (FS07B1S) | |
|---|---|---|
| Heat and water | ||
| Tank size | 6 gal | - |
| Maximum flow | - | 2.5 GPM |
| Fuel | Propane + electric | Propane |
| Fit | ||
| Weight | 35.4 lb | - |