General Electric Water Heaters
Tankless & On-Demand Water Heating

General Electric water heaters review and buying tips. Review of GE tankless water heaters for residential water heating.

General Electric water heaters with the tankless technology are the latest addition to the GE heating group. Tankless models are designed to heat water on demand and deliver hot water in continuous and endless supply.

Due to its small and compact size, powerful gas burner and advanced electronics, they are recommended for the households with 4 and more members, and where the demand is high. But, they can be used for supplying a single fixture too.

All GE tankless water heaters are using natural gas or LP gas and based on the installation feasibility you can buy direct vent units for indoor installation or ventless for the outside.

Most of the gas-fired General Electric water heaters are factory set to use natural gas, while other LP gas. If the unit is factory set to use the natural gas, it is very easy to convert it to propane gas and vice versa. The qualified technician should do the gas conversion.

All tankless heaters from GE that come with the energy factor of 0.87 or higher are Energy Star compliant. Tankless models are environment-friendly or “green,” where using such a "green" technology helps in reducing the emission of NOx, greenhouse gases.

Reviewing the basic features

GE tankless water heaters are designed and built by Rheem manufacturer, so if you compare both tankless brands, you will notice that there are no significant differences between them.

All of the tankless models are designed for residential water heating, from small homes to large with high hot water demand. With its small and compact design, GE tankless water heaters can be easily installed on the wall, so they free up the floor space for other applications and provide versatility and flexibility when choosing the right location.

GE tankless is providing hot water for showers, dishes, washing the clothes, even the tubs... There is no tank, no water storage, the unit works only on demand. Such a demand-run technology allows you always to have fresh water ready while heating costs are reduced by at least 25%.

The central component, which is the brain of the GE tankless water heater, is the electronic board. Electronic digital control is used to set and control the hot water temperature and provide diagnostic codes for easier troubleshooting and maintenance.

The temperature of the outgoing hot water is, thanks to the advanced technology, monitored constantly. This technology allows the heater to adjust the water flow to maintain the desired temperature and keep the temperature constant. These GE tankless units are providing a temperature range from 98 F to 140 F. If you want even better control of the water temperature and monitor heater's operation, the recommendation is to install a remote control.

General Electric tankless water heaters, designed for the outside installation, have the freeze protection which is consisted of the ceramic heaters located inside the unit, so it can protect the unit from freezing outside weather and as low as the temperature of -30 F.

GE tankless heaters are not using the pilot light, but direct electronic ignition, which helps in boosting the energy efficiency. The maximum gas input is found on 9.4 GPM models and is 199,000 BTU per hour if the unit is using natural gas, and 190,000 BTU if using propane or LP gas.

For 7.5 GPM models, the gas input is 180,000 BTU/hr making it ideal for medium and small size homes, with 2-3 bathrooms. All the units, no matter are they using natural gas or propane, are having the energy factor 0.82.


General Electric water heaters with the tankless technology are available in two sizes only, 7.5 GPM and 9.4 GPM, both groups with an option for an indoor and outdoor installation. These are maximum flows calculated for the temperature rise of 35 F.

There are four tankless models with the 9.4 GPM water flow indoor model GN94DNSRSA and the outdoor model GN94ENSRSA factory set for natural gas; indoor model GP94DNSRSA and outdoor unit GP94ENSRSA factory set on LP gas. All indoor models are using 5x3" concentric direct vent for venting products of combustion out, while the outdoor units are ventless - these do not require venting.

Tankless models with 7.5 GPM of hot water flow can be found as an indoor model GN75DNSRSA and outdoor model GP75ENSRSA, both units, factory-set to use natural gas.

As opposed to Rheem, GE does not provide as many sizes.

If anything happens to your GE tankless water heater, don’t worry, as the company provides a 10-year warranty on the heat exchanger, 5 years on parts and one year on the labor.

› GE tankless water heaters

Related articles

GE water heaters - an overview
GE electric water heaters
GE gas water heaters
GE tankless

top reviews

Popular on Amazon!