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 RecPro 18 in 60,000 BTU Tankless rates 2.7 among tankless ones. The Suburban SW6DEL (5240A) costs $19.96 less ($479.99 vs $499.95).
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.
RecPro 18 in 60,000 BTU Tankless
#13 in TanklessFull review
A tankless heater rated 60,000 BTU for endless hot water in an RV that has the cutout for it.
Amazon $499.95$499.95
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) | RecPro 18 in 60,000 BTU Tankless |
|---|---|---|
| Overall rating | 3.0/5 | 2.7/5 |
| Value 40% | 31 $80 per gallon of tank ($479.99, 6 gal) | 43 $8.33 per 1,000 BTU ($499.95, 60,000 BTU) |
| Hot water output 35% | 51 10.1 gal/h recovery on gas | 50 maximum flow not published (neutral score used) |
| Warranty 25% | 50 2-year warranty | 0 warranty not published, scored as none |
Specifications
| Suburban SW6DEL (5240A) | RecPro 18 in 60,000 BTU Tankless | |
|---|---|---|
| Heat and water | ||
| Input capacity | 12,000 BTU | 60,000 BTU |
| Tank size | 6 gal | - |
| Gas recovery | 10.1 gal/h | - |
| Fuel | Propane + electric | Propane |
| Fit | ||
| Weight | 36 lb | 35.8 lb |
| Warranty | ||
| Warranty | 2 years | - |