Choosing a commercial water heater for a shop, restaurant, or small building usually comes down to the fuel you already have. The Rheem models here cover both sides of that decision: natural gas storage tanks and electric units, with listed prices from $600 to $5,000. The hot-water load matters too. A small business with light use can get by on a smaller tank, while high-demand operations need the larger capacities and higher output on the upper end of this range.
Quick take
The Rheem Rudd ELD80-D is a strong middle-ground pick, especially compared with the entry-level option. The Triton GHE100SU-200 is the top-price gas model. The E50A-9-G-1 is the low-priced entry point, and the G75-75N-3 sits in the middle as a gas option.
Listed prices at a glance
| Product | Listed price | Price bar |
|---|---|---|
| Rheem G75-75N-3 gas water heater | $1,000 | |
| Rheem E50A-9-G-1 electric water heater | $600 | |
| Rheem Triton GHE100SU-200 gas water heater | $5,000 | |
| Rheem Rudd ELD80-D electric water heater | $1,499 |
Decision matrix
| Unit | Choose it for | Keep in mind |
|---|---|---|
| G75-75N-3 | A vented storage-tank gas unit with indoor mounting | Listed as open box |
| E50A-9-G-1 | The lowest listed price and 50-gallon capacity | Listed as used; 208V single-phase or three-phase |
| Triton GHE100SU-200 | High-output natural gas with 100 gallons and 199,000 BTU | Minor cosmetic ding noted |
| ELD80-D | 80-gallon electric at 277V with 12.1 kW | Requires a commercial-voltage 277V supply |
Product notes
#### Rheem G75-75N-3 commercial gas water heater
This is the gas storage-tank option in the group. It is described as vented and intended for indoor mounting, which is useful if your mechanical room was planned around a gas-fired tank. The G75-75N-3 is made in the United States and comes in gray. At $1,000, it sits in the middle of the four listed prices. The catch is that the condition is open box. If you prefer a new-condition electric model, this gas tank may not be the right starting point.
#### Rheem E50A-9-G-1 commercial water heater
If your goal is the lowest listed price, this 50-gallon electric unit is the entry point at $600. It is described as a commercial water heater made in the United States and notes 208-volt single-phase or three-phase power. The used condition is the trade-off: you are buying a unit that has already been in service, and you are not paying extra for a new-condition unit. For a smaller hot-water load, a light-use space, or a project where the budget is the main constraint, this could leave room in the budget for installation or upgrades.
#### Rheem Triton GHE100SU-200 natural gas commercial water heater
The Triton is the heavy hitter here: a 100-gallon natural gas unit with a 199,000 BTU rating, listed at $5,000. It is listed by sG-cU-kFSbK and described as ultra-high efficiency. It also has a minor ding in the outside cover that does not affect the tank. This is the only unit in the group that combines 100-gallon capacity with that level of BTU output, so if your demand is high and your gas supply is ready, this is the power play. The price is the highest of the four by a wide margin, and the cosmetic ding may matter if your heater will be visible.
#### Rheem Rudd ELD80-D 80-gallon commercial electric water heater
This 80-gallon electric unit is listed as new at $1,499. It runs on 277V and 12.1 kW, so it belongs in a building with commercial-voltage electric service. For buyers who want more capacity without jumping to the top-price gas unit, this is the sensible middle step. The new condition is a clear advantage over the E50A-9-G-1, and the electric design keeps fuel supply out of the picture. On the downside, 277V is not a standard residential voltage, so the installation may be limited to commercial or industrial settings where that feed already exists.
Final recommendation by use case
- Lowest listed price and modest capacity: E50A-9-G-1.
- New-condition electric model: ELD80-D.
- High-output option: Triton GHE100SU-200.
- Mid-range option: G75-75N-3.
Start by confirming the fuel and voltage available at the installation site, then let the capacity and condition guide the final pick.
