If you are searching for a natural gas GE water heater, first verify the brand and model: none of the listed products is identified as a GE water heater. The options below include four natural gas water heaters and one pilot assembly explicitly intended for certain Rheem models. The 40-gallon tank is the closest match for a conventional tank replacement; the tankless models suit different household demand levels. Check your existing unit’s label, fuel type, venting, and installation requirements before choosing.
| Product | Best suited for | Type |
|---|---|---|
| RealMAX Choice 40-Gallon Tall | Buyers seeking a conventional tank-style option | Natural gas storage tank |
| RTG Series 7.0 GPM | Homes with several simultaneous hot-water needs | Indoor tankless |
| Westinghouse 7.9 GPM | Buyers who want app and voice controls | Indoor tankless |
| APUS 4.42 GPM | Smaller or moderate hot-water demand | Indoor tankless |
| SP20075 Pilot and Igniter Kit | Specific Rheem pilot-assembly replacements | Replacement component, not a heater |
RealMAX Choice 40-Gallon Tall Natural Gas Heater
This product is a 40-gallon tall atmospheric water heater that uses natural gas. It is the most direct option in this list for someone comparing a conventional storage-tank style with tankless alternatives. A storage tank keeps a volume of heated water available, while tankless models heat water as it flows.
Best for: Buyers who want a natural gas tank-style unit and are evaluating a 40-gallon tall configuration. It was selected because it is the only listed full-size conventional tank heater.
Limitation: The provided product information does not specify dimensions, recovery rate, vent details, or household capacity. Confirm those details and installation suitability before purchase. It is not identified as a GE model, so do not assume it is a direct GE replacement.
RTG Series 7.0 GPM Indoor Tankless Heater
The RTG Series is an indoor, non-condensing natural gas tankless water heater rated at 160,000 BTU per hour. Its listed flow is 7.0 GPM at a 35°F temperature rise, and the product description says it can serve two to three simultaneous showers. It has a direct-vent system and a wall-mounted design.
Best for: Households that want on-demand hot water and have multiple concurrent uses to plan for. It was selected for its stated 7.0 GPM capacity and whole-house positioning.
Limitation: The stated flow rate is tied to a 35°F temperature rise; actual usable flow depends on incoming water temperature and demand. The product information does not establish that it fits an existing GE installation or vent connection.
Westinghouse 7.9 GPM Smart Tankless Heater
This indoor natural gas tankless model is listed at 7.9 GPM and 180,000 BTU. Its features include Wi-Fi app and voice control, remote temperature adjustment, operating-status monitoring, and fault alerts. The listing also describes self-modulating operation and temperature stability within ±1°F.
Best for: Buyers who value remote controls and want a high-capacity tankless option. It stands out among these listed products for its connected controls and stated flow rating.
Limitation: The listing’s capacity claim does not guarantee that the unit will supply a particular number of fixtures in every home. Verify gas supply, venting, and local installation requirements; smart features do not make it a confirmed GE-compatible replacement.
APUS 4.42 GPM Indoor Natural Gas Tankless Heater
The APUS indoor tankless model is listed at 95,000 BTU and 4.42 GPM, with a low-flow start of 0.66 GPM. Its described temperature setting range is 95°F to 140°F, and the listing claims temperature control within ±1°F. It also identifies an oxygen-free copper heat exchanger and a UEF of 0.81.
Best for: Buyers comparing a lower stated flow capacity than the 7.0 and 7.9 GPM options. It was selected as a distinct capacity choice for households that do not need the highest listed flow rate.
Limitation: Its listed maximum flow is lower than the other two tankless heaters here. The product description’s simultaneous-use claim should be checked against your incoming water temperature and actual fixture demand.
SP20075 Pilot And Igniter Assembly Kit
This is a replacement component, not a water heater. The listing says it is designed for mechanical gas valves without an LED status light and includes a 30mV thermocouple. It identifies compatibility with specified Rheem RHG and 3WA series models, including PRO50-40F, 42V40F, and several 3WA models.
Best for: Owners whose exact model and mechanical valve match the listed Rheem applications. It was included because a pilot or ignition problem can prompt a search for a natural gas water heater replacement part.
Limitation: The listing warns that this kit is not compatible with electronic valves that require a 750mV thermopile, typically indicated by a blinking LED. It is not identified as a GE part. Confirm the model and valve type before ordering, and use qualified service when needed.
Buying Guide: Choosing A Natural Gas Water Heater
Is the heater actually a GE model?
Read the rating plate on the existing unit and record its brand, model number, fuel type, and input rating. Search by the exact model number when looking for a replacement part. Product names alone are not enough to establish compatibility. None of the products listed here is identified as GE, and the pilot assembly is specifically described for certain Rheem models.
Should you choose a tank or tankless heater?
A storage-tank model holds heated water for use. The RealMAX option is the only listed tank-style heater, with a 40-gallon capacity. Tankless models heat water as it flows and may save floor space, but their performance depends on flow demand, incoming water temperature, gas capacity, and installation conditions. Compare the type of system you have with the type you intend to install.
How much flow capacity does your household need?
Estimate which fixtures may run at the same time, such as showers, sinks, and laundry. The listed tankless options range from 4.42 GPM to 7.9 GPM, but those numbers are not directly comparable without considering temperature rise. The RTG model specifies 7.0 GPM at a 35°F rise. Colder incoming water can reduce the flow available at a chosen hot-water temperature.
What should you check before replacing a unit?
- Fuel: Confirm that the existing supply and proposed heater use natural gas. Do not assume a product can use another fuel.
- Venting: Check the product’s venting requirements against the current setup. The RTG listing specifies indoor installation with a direct-vent system.
- Space and layout: Compare the existing installation area with the proposed unit’s form and required clearances.
- Gas and water demand: Have the supply and household usage evaluated for the chosen heater’s input and flow needs.
- Local requirements: Check applicable local codes and installation rules before purchase or installation.
When is a replacement pilot assembly appropriate?
A pilot kit is not a substitute for a water heater. Before considering the SP20075 assembly, confirm the exact heater model, gas-valve type, and LED status. The listing specifically excludes electronic valves requiring a 750mV thermopile. If the model or valve cannot be verified, do not treat the part as a universal fit.
What matters most when comparing these models?
For a conventional tank, compare tank capacity, physical fit, and installation requirements. For tankless units, compare flow at the relevant temperature rise, BTU input, venting, and control features. The Westinghouse listing emphasizes app and voice controls; the APUS listing gives a lower maximum GPM than the other two tankless options. Treat product claims as specifications to verify for your home rather than guarantees of performance.
Frequently Asked Questions
Are any of these products confirmed GE water heaters?
No. The supplied product information does not identify any of the heaters as GE models. Check the manufacturer and model number on your existing unit before selecting a replacement.
Which listed product is a conventional tank water heater?
The RealMAX Choice is a 40-gallon tall natural gas atmospheric storage-tank heater. The other three full-size heaters are tankless models.
Which tankless option has the highest listed flow rate?
The Westinghouse model has the highest listed flow rate at 7.9 GPM. Actual flow depends on temperature rise and household conditions.
Can the SP20075 kit replace a GE pilot assembly?
The supplied details do not confirm GE compatibility. They identify specific Rheem RHG and 3WA applications and exclude certain electronic gas valves. Verify the exact model and valve type.
Does a higher GPM rating guarantee more hot water in every home?
No. Tankless flow depends on factors including incoming water temperature, required output temperature, and simultaneous fixture demand. Compare flow at the temperature rise your home needs.