Dometic WH-10GEA
#7 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 is the better RV water heater overall, rated 3.3 to 3.2. The Dometic WH-10GEA leads on value. The Suburban SAW6DE (5321A) costs $49.43 less ($610.57 vs $660).
Prices were last checked November 9, 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.
Suburban SAW6DE (5321A)
#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 $610.57$610.57
Which should you buy?
- Choose the Dometic WH-10GEA for value ($66 per gallon of tank ($660, 10 gal) vs $101.76 per gallon of tank ($610.57, 6 gal)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every tank RV water heater; a clear win is highlighted. How we rank explains each one.
| Factor weight | Dometic WH-10GEA | Suburban SAW6DE (5321A) |
|---|---|---|
| Overall rating | 3.3/5 | 3.2/5 |
| Value 40% | 50 $66 per gallon of tank ($660, 10 gal) | 8 $101.76 per gallon of tank ($610.57, 6 gal) |
| Hot water output 35% | 50 recovery rate not published (neutral score used) | 91 14.1 gal/h recovery on gas |
| Warranty 25% | 50 2-year warranty | 50 2-year warranty |
Specifications
| Dometic WH-10GEA | Suburban SAW6DE (5321A) | |
|---|---|---|
| Heat and water | ||
| Input capacity | 10,000 BTU | 10,000 BTU |
| Tank size | 10 gal | 6 gal |
| Gas recovery | - | 14.1 gal/h |
| Fuel | Propane + electric | Propane + electric |
| Fit | ||
| Weight | 22 lb | 41 lb |
| Warranty | ||
| Warranty | 2 years | 2 years |