Suburban SW6DEL (5240A)
#9 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 $479.99$479.99
The Suburban SW6DEL (5240A) rates 3.0 among tank RV water heaters; the Fogatti InstaShower 8 Plus (FS08B1SBD) rates 2.6 among tankless ones. The Suburban SW6DEL (5240A) costs $40 less ($479.99 vs $519.99).
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 8 Plus (FS08B1SBD)
#15 in TanklessFull review
A tankless heater rated 55,000 BTU for endless hot water in an RV that has the cutout for it.
Amazon $519.99$519.99
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 | Suburban SW6DEL (5240A) | Fogatti InstaShower 8 Plus (FS08B1SBD) |
|---|---|---|
| Overall rating | 3.0/5 | 2.6/5 |
| Value 40% | 31 $80 per gallon of tank ($479.99, 6 gal) | 36 $9.45 per 1,000 BTU ($519.99, 55,000 BTU) |
| Hot water output 35% | 51 10.1 gal/h recovery on gas | 47 up to 2.9 GPM |
| Warranty 25% | 50 2-year warranty | 0 warranty not published, scored as none |
Specifications
| Suburban SW6DEL (5240A) | Fogatti InstaShower 8 Plus (FS08B1SBD) | |
|---|---|---|
| Heat and water | ||
| Input capacity | 12,000 BTU | 55,000 BTU |
| Tank size | 6 gal | - |
| Gas recovery | 10.1 gal/h | - |
| Maximum flow | - | 2.9 GPM |
| Fuel | Propane + electric | Propane |
| Fit | ||
| Weight | 36 lb | - |
| Warranty | ||
| Warranty | 2 years | - |