Electric water heaters do not use a gas pilot light, so they can suit buyers seeking a pilot-free option. The best choice depends on whether you need whole-home hot water, a compact tank, or portable water heating. The 27kW tankless model is designed for higher-demand use, while the 14kW ThermoMate is better suited to a smaller demand when the home’s electrical service supports it. The GE 18-gallon unit offers stored hot water, and the GE 40-gallon model is a family-sized tank option.
| Product | Best suited for | Type |
|---|---|---|
| Garvee 27kW Electric Tankless | Higher-demand household use | Electric tankless |
| ThermoMate 14kW Electric Tankless | One or two fixtures, depending on conditions | Electric tankless |
| GE 18-Gallon Electric Water Heater | Compact spaces and smaller hot-water needs | Electric tank |
| GE Smart 40-Gallon Short Electric Water Heater | Households needing stored hot water | Electric tank |
| LOQOMI 2000W Immersion Heater | Portable, small-volume water heating | Immersion heater |
Garvee 27kW Electric Tankless Water Heater
Best for: Buyers looking for an electric tankless model intended to serve several hot-water needs at once. It heats water on demand rather than storing it in a tank, and its listed 27kW output is the highest among the tankless models in this selection.
The product description says it is designed for whole-house use, including simultaneous showers, sinks, and appliances. Its self-modulating feature adjusts power output based on water flow. The stainless-steel enclosure is described as corrosion-resistant and suitable for indoor use.
Why it was selected: It offers the strongest stated output among the listed residential tankless choices, making it the more appropriate comparison for households with higher demand.
Limitation: The provided product details do not state the required breaker, wire size, or minimum electrical service capacity. Confirm installation requirements and expected flow at your incoming water temperature before buying.
ThermoMate 14kW Electric Tankless Water Heater
Best for: A smaller household or a limited number of fixtures, provided the home can meet the electrical requirements. The manufacturer lists a maximum flow of 3.4 gallons per minute and says the unit may support one or two fixtures, such as a shower and bathroom sink, depending on inlet-water temperature.
This 240-volt electric model uses touch controls and is described as self-modulating. Its listed installation requirements include a main panel capacity of at least 150 amps, a dedicated 60-amp double-pole breaker, one set of 6 AWG copper wires, and 1/2-inch NPT water connections. The product description identifies it as ETL certified for residential indoor use.
Why it was selected: It provides clear electrical and plumbing specifications, which help buyers assess whether it is a realistic fit before purchase.
Limitation: Its stated flow and fixture capacity depend on incoming water temperature. The electrical service requirements may make it unsuitable for homes without sufficient panel capacity.
GE 18-Gallon Plug-and-Play Electric Water Heater
Best for: Buyers who need a compact electric tank for a limited-space installation or smaller hot-water demand. The manufacturer describes it as suitable for places such as kitchens, bathrooms, laundry rooms, cabins, garages, and sheds.
The 18-gallon unit has an adjustable thermostat and uses a 120-volt supply. Its product description says it connects to standard 3/4-inch NPT-compatible water connections and can serve a single hookup or a small home, condo, or apartment. Unlike a tankless heater, it stores heated water, so the amount available at once is related to its tank capacity.
Why it was selected: Its compact format and standard-voltage connection make it a distinct option for buyers who do not need a high-output tankless system.
Limitation: An 18-gallon tank may not meet the demand of a larger household using several hot-water fixtures at the same time. Check the intended use and installation location before choosing it.
GE Smart 40-Gallon Short Electric Water Heater
Best for: Households that want a conventional electric storage tank with smart controls and a stated 40-gallon capacity. It is a 240-volt model and is described as a short-format water heater.
Built-in Wi-Fi connects to the SmartHQ system for temperature adjustments, hot-water-level information, vacation-mode schedules, and notifications. GE lists a first-hour rating of 65 gallons and says the tank holds a true 40 gallons compared with competing 40-gallon electric steel tank water heaters by DOE-rated gallon capacity.
Why it was selected: It combines a full-size storage capacity with connected controls, making it a useful comparison for buyers who prefer stored hot water over an on-demand unit.
Limitation: The 240-volt electrical requirement and tank dimensions need to suit the home. The product information does not provide installation measurements or circuit details, so verify those separately.
LOQOMI 2000W Portable Immersion Water Heater
Best for: Portable, small-volume heating rather than replacing a home’s main water heater. The listed uses include buckets, bathtubs, small stock tanks, camping, and other temporary water-heating tasks.
This 2000-watt immersion heater has a digital display, thermostat, automatic shutoff at 165°F, and a 304 stainless-steel protective guard. The product description says to fully submerge the heater before plugging it into a 110-volt outlet and to keep it at least three feet from flammable materials during operation.
Why it was selected: It is a pilot-free electric option for portable situations where a fixed tank or tankless installation is not practical.
Limitation: It is not presented as a whole-house water heater. Follow the submersion and clearance instructions, and do not treat it as a substitute for a permanently installed residential system.
Buying Guide: How to Choose a Water Heater Without a Pilot Light
Electric tank and electric tankless water heaters do not use a gas pilot light. A storage tank heats and holds a supply of water, while a tankless unit heats water as it flows through the appliance. An immersion heater is a portable device for specific small-scale tasks, not a direct replacement for a home’s plumbing-connected water heater.
Do you need a tank or a tankless model?
Choose a tank model if you want water heated and stored for later use. The GE 18-gallon option is the smaller storage choice in this list, while the GE 40-gallon model is intended for a larger supply. Tank capacity alone does not determine how many showers are available; household usage, incoming-water temperature, and the heater’s recovery performance also matter.
Choose a tankless model if you prefer on-demand heating and want to avoid storing a full tank of hot water. The Garvee 27kW model is the higher-output choice based on its listed wattage. The ThermoMate 14kW model is a lower-output option with a stated maximum flow of 3.4 GPM, subject to water temperature and use conditions.
Can your electrical system support the heater?
Check voltage, breaker requirements, wire size, and available panel capacity before selecting an electric model. These requirements can differ substantially between appliances. The ThermoMate lists a 240-volt supply, a 60-amp double-pole breaker, 6 AWG copper wiring, and at least 150 amps of total main-panel capacity. Do not assume that another tankless model has the same requirements.
For products whose supplied information does not specify circuit details, obtain the installation documentation before purchase. An electrician can assess the existing panel and circuit. A product’s stated voltage by itself is not enough to confirm that it can be installed in a particular home.
How much hot water does your household use at once?
Think about simultaneous demand, not just the number of people in the home. A shower running while a sink or appliance uses hot water creates more demand than one fixture operating alone. For tankless models, compare the manufacturer’s flow information with the temperature of the incoming water and the number of fixtures you expect to use together.
For tank models, consider the capacity and first-hour output where provided. The GE 40-gallon product lists a 65-gallon first-hour rating. That figure can help with comparison, but actual household results depend on usage patterns and installation conditions.
Where will the heater be installed?
Measure the available space and check plumbing connections, electrical access, and the installation location. A compact 18-gallon tank may fit a utility space that cannot accommodate a larger unit, but its smaller stored supply may not meet every household’s needs. A tankless unit avoids a large storage tank but still needs suitable wall space and plumbing and electrical connections.
Portable immersion heaters have different requirements. The LOQOMI model’s instructions call for full submersion before plugging in and a three-foot distance from flammable materials. Its intended portable uses should not be confused with permanent residential water-heater installation.
Which features are useful to compare?
- Controls: Compare adjustable thermostats, touch controls, or connected features such as Wi-Fi if they matter to your routine.
- Power and flow: For tankless units, check rated power and flow claims alongside incoming-water temperature and simultaneous fixture demand.
- Capacity and output: For tank models, compare stored volume and any first-hour rating provided.
- Connections: Confirm water connection sizes and electrical requirements in the product documentation.
- Installation scope: Distinguish a fixed residential appliance from a portable immersion heater designed for limited tasks.
Frequently Asked Questions
Do electric water heaters have pilot lights?
Electric water heaters do not use a gas pilot light. They heat water using electrical components, either in a storage tank or as water flows through a tankless unit.
Is a tankless electric water heater always better than a tank?
No. Tankless models heat water on demand, while tank models store heated water. The better choice depends on household demand, available electrical capacity, installation space, and preference for stored versus on-demand hot water.
Can a 14kW tankless heater run two fixtures?
The ThermoMate product description says it may support one or two fixtures, such as a shower and sink, depending on inlet-water temperature. Actual flow and simultaneous use should be checked against the manufacturer’s specifications and the home’s conditions.
Is an immersion heater a replacement for a home water heater?
No. The listed LOQOMI immersion heater is a portable device for small-volume or temporary heating tasks. Its product information does not describe it as a whole-house plumbing-connected water heater.
What should I check before buying an electric tankless heater?
Verify the electrical panel capacity, voltage, breaker, wire size, water connections, and expected hot-water flow. Use the specific product’s installation requirements rather than assuming all electric tankless heaters need the same setup.