6 Best Alternatives to the Eemax EX190T2 19KW 240V Therm Electric Tankless Water Heater (2026)
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
The eemax ex190t2 19kw 240v therm electric tankless water heater offers 99% energy efficiency and precise thermostatic control in a compact 5 x 11 x 11 inch frame. Its bottom-mounted 3/4 inch NPT connections simplify installation in tight spaces. You might prefer a different model if you need higher flow rates for whole-house use or a smaller footprint for a single sink. Some buyers also seek digital temperature displays or commercial durability that this unit does not explicitly list.
This list of 6 alternatives focuses on products with overlapping specifications like 240V electric operation and similar wattage ranges. We selected these options because they address common gaps in the original design. You will find units with higher kilowatt outputs for multiple bathrooms, lower wattage options for point-of-use applications, and tank-style heaters for stored hot water needs. Each alternative matches key performance metrics while offering distinct features for your specific plumbing and electrical setup.
Our top pick: Eemax 19 kW Electric Tankless Water Heater.
How alternatives compare to Eemax
Rheem 18kW 240V Electric Tankless Water Heater
The Rheem RTEX-18 offers 18 kW of power, slightly less than the Eemax’s 19 kW, but provides whole-house capability. It measures 14.5 by 3.5 by 18.5 inches, which is wider and longer than the Eemax’s 5 by 11 by 11 inch frame. This unit prioritizes steady performance and precise temperature control for multiple fixtures. You should choose this if you need a larger footprint to support whole-house demand. The Eemax remains better for tight spaces with bottom connections. The Rheem suits buyers who value efficient power adjustment over compact dimensions. It is a solid upgrade for homes needing consistent flow across several outlets.
Camplux 6000W 240V Point-of-Use Tankless Water Heater
The Camplux TE06ProN5 delivers 6000 W, significantly lower than the Eemax’s 19 kW. It measures 7 by 10 by 7 inches, making it much smaller than the Eemax. This unit is designed for point-of-use applications, such as a single sink. It weighs only 4.9 pounds. You should pick this if you need instant hot water in a tight space without the bulk of a full-size heater. The Eemax is better for higher flow needs. The Camplux sacrifices power for extreme compactness. It fits users who prioritize space savings over high capacity. This is an efficient solution for single-sink setups where the Eemax would be oversized.
VEVOR 30-Gallon 5000W Electric Water Heater
The VEVOR FJI-POR-120S2 is a 30-gallon tank heater, unlike the Eemax’s tankless design. It measures 17.7 by 40.2 by 17.7 inches and weighs 74.5 pounds. This unit provides stored hot water rather than instant heating. You should choose this if you need simultaneous outlet support for small commercial or family settings. The Eemax is better for space savings and energy efficiency. The VEVOR sacrifices instant heating for stored capacity. It suits buyers who need reliable hot water for multiple fixtures at once. This is a practical choice for commercial spaces where tankless flow rates might be insufficient.
Thermomate 18kW Electric Tankless Water Heater
The Thermomate ET180 offers 18 kW, slightly less than the Eemax’s 19 kW. It measures 13.1 by 17.1 by 13.1 inches, which is taller and wider than the Eemax. This unit provides precise digital temperature control. You should pick this if you prioritize digital precision and have adequate electrical infrastructure. The Eemax is better for compact installation with bottom connections. The Thermomate sacrifices compactness for digital control features. It fits users who need reliable performance in homes with high-amperage demands. This is a strong alternative for those who value precise temperature settings over the Eemax’s thermostatic control.
ThermoMate 14kW Electric Tankless Water Heater
The ThermoMate EH140 delivers 14 kW, lower than the Eemax’s 19 kW. It measures 11.2 by 15.9 by 11.2 inches and weighs 13 pounds. This unit is designed for small households needing 3.4 GPM flow. It requires a 60 Amp circuit. You should choose this if you need a certified indoor unit for one or two fixtures. The Eemax is better for higher power output. The ThermoMate sacrifices wattage for compact, certified indoor use. It suits buyers with the electrical capacity for a 60 Amp circuit. This is a reliable option for small homes where the Eemax might be overpowered.
Stiebel Eltron Tempra 29 Plus 28.8kW Tankless
The Stiebel Eltron Tempra 29 Plus offers 28.8 kW, significantly more than the Eemax’s 19 kW. It measures 16.6 by 14.5 by 4.63 inches and weighs 19 pounds. This unit requires three dedicated breakers and 200 amp service. You should pick this if you need high output for multiple bathrooms. The Eemax is better for standard electrical setups. The Stiebel Eltron sacrifices ease of installation for high capacity. It fits buyers with robust electrical infrastructure. This is a high-demand solution for homes where the Eemax cannot meet flow requirements. It is ideal for large households with ample space and power.
Quick picks
Our 7 picks
Eemax 19 kW Electric Tankless Water Heater
Best for: compact spaces with precise temp needs
- Fuel Type
- Electric
- Wattage
- 19KW
- Voltage
- 240V
- Temperature Control
- Thermostatic control
- Dimensions
- 5 x 11 x 11 inches
View on Amazon: Eemax 19 kW Electric Tankless Water Heater Affiliate link
This is the Eemax EX190T2, a 19kW electric tankless water heater. It runs on 240V power and measures 5 x 11 x 11 inches. The unit features thermostatic control for precise outlet temperatures. It is 99% energy efficient. You should choose this if you need a compact, space-saving unit with bottom water connections for easy installation in tight spaces.
Pros
- 19kW power output for strong hot water flow
- Compact 5 x 11 x 11 inch footprint
- 99% energy efficiency rating
- Thermostatic control for precise temperature settings
- Bottom 3/4 inch NPT water connections
Cons
- 19kW output is lower than the 28.8kW Stiebel Eltron Tempra 29 Plus
- Smaller capacity than the 30-gallon VEVOR point-of-use heater
- Lacks digital display or remote control features found in competitors
Good fit if
- You need a compact unit for tight spaces
- You require precise thermostatic temperature control
- You want a 99% energy efficient electric heater
Skip if
- You need higher flow rates than 19kW provides
- You prefer digital displays or remote controls
- You require a larger storage capacity unit
Verdict: Eemax EX190T2 19kW Electric Heater suits buyers who prioritize compact size and precise thermostatic control over maximum flow rate. It fits well in tight spaces where bottom connections are preferred.
Rheem 18kW 240V Electric Tankless Water Heater
Best for: Whole-house hot water with precision
- Fuel Type
- Electric
- Flow Rate
- 4.4 GPM
- Wattage
- 18 kW
- Voltage
- 240 V
- Temperature Control
- ±1°F
- Dimensions
- 3.5 x 14.5 x 18.5 inches
View on Amazon: Rheem 18kW 240V Electric Tankless Water Heater Affiliate link
The Rheem RTEX-18 is an 18kW electric tankless water heater designed for whole-house use. It delivers up to 4.4 GPM at 240V. The unit features external digital thermostatic control with an LED display and ±1°F accuracy. Its self-modulation adjusts power to meet demand. The compact gray design measures 14.5 x 18.5 x 3.5 inches. It suits homes needing reliable, efficient hot water with precise temperature management.
Pros
- 18kW output for whole-house demand
- Up to 4.4 GPM flow rate
- Digital display with ±1°F accuracy
- Self-modulation adjusts power to demand
Cons
- Lower wattage than 24kW competitors
- Heavier at 14.8 pounds
- Single voltage option only
Good fit if
- You need whole-house hot water
- You want precise temperature control
- You prefer self-modulating efficiency
Skip if
- You require higher flow rates
- You need multiple voltage options
- You want a lighter unit
Verdict: Rheem RTEX-18 18kW Electric Heater provides steady performance for whole-house needs. It fits buyers prioritizing temperature precision and efficient power adjustment.
Camplux 6000W 240V Point-of-Use Tankless Water Heater
Best for: single sink hot water needs
- Fuel Type
- Electric
- Flow Rate
- 1.07 GPM at 35°F rise
- Wattage
- 6000 W
- Voltage
- 240 V
- Certification
- ETL Listed
- Dimensions
- 10.95 x 7.4 x 2.52 inches
View on Amazon: Camplux 6000W 240V Point-of-Use Tankless Water Heater Affiliate link
This Camplux unit delivers instant hot water for single sinks using 6000W at 240V. It provides 1.07 GPM at a 35°F rise, making it ideal for under-sink installation. The compact design measures 10.95 x 7.4 x 2.52 inches. An LCD display shows real-time temperature. Self-modulating technology adjusts power based on flow. It is ETL listed for safety. This heater suits users needing reliable point-of-use performance in tight spaces.
Pros
- 6000W heating output for rapid hot water delivery
- Compact dimensions fit under sinks and in tight spaces
- LCD display shows real-time water temperature
- Self-modulating technology reduces energy waste
- ETL Listed certification ensures safety standards
Cons
- Low flow rate of 1.07 GPM limits use to single fixtures
- Requires 240V electrical connection, not standard 120V outlets
- No remote control or smart home integration mentioned
Good fit if
- You need hot water for a single kitchen or bathroom sink
- You have limited space under a counter for installation
- You require a compact, wall-mounted unit with digital controls
Skip if
- You need to supply hot water to multiple fixtures simultaneously
- Your home only has standard 120V circuits available
- You want a high-flow unit for showers or tubs
Verdict: Camplux 6000W 240V Point-of-Use Heater is a compact, efficient solution for single-sink applications. It fits users who need reliable, instant hot water in tight spaces without the bulk of a full-size heater.
VEVOR 30-Gallon 5000W Electric Water Heater
Best for: Small commercial spaces needing stored hot water
- Fuel Type
- Electric
- Wattage
- 5000 W
- Capacity
- 30 gal
- Voltage
- 240 V
- Dimensions
- 40.2 x 17.7 x 17.7 inches
- Use
- Commercial
View on Amazon: VEVOR 30-Gallon 5000W Electric Water Heater Affiliate link
This VEVOR unit is a 30-gallon electric tank water heater designed for small commercial or family use. It operates on 240V with 5000W heating power. The 20 mm foam insulation helps maintain temperature and save energy. An LED display and rotary knob allow for easy temperature adjustment. Its IPX4 rating and multiple safety protections ensure secure operation for bathrooms and kitchens.
Pros
- 30-gallon capacity supports 3-4 simultaneous outlets
- 20 mm thick foam insulation reduces heat loss
- LED display shows heating status clearly
- IPX4 waterproof rating for safe indoor use
- Built-in overheating and overpressure protections
Cons
- 5000W is lower than the 18-29kW tankless competitors
- 74.5 lbs weight requires sturdy mounting
- Rotary knob lacks precise digital temperature control
Good fit if
- You need hot water for multiple outlets at once
- You have a small commercial space needing storage
- You want simple knob and LED controls
Skip if
- You require instant on-demand heating
- You need high flow rates for large families
- You prefer precise digital temperature settings
Verdict: VEVOR 30 Gal Electric Tank Water Heater provides reliable stored hot water for small commercial or family settings. It fits buyers who need simultaneous outlet support rather than instant heating.
Thermomate 18kW Electric Tankless Water Heater
Best for: Precise digital temperature control in tight spaces
- Fuel Type
- Electric
- Flow Rate
- Up to 4.4GMP
- Wattage
- 18kW
- Installation Location
- Indoor
- Voltage
- 240V
- Temperature Control
- 80°F to 140°F, ±1°F
View on Amazon: Thermomate 18kW Electric Tankless Water Heater Affiliate link
The ThermoMate ET180 is an 18kW electric tankless water heater designed for 240V circuits. It delivers up to 4.4 gallons per minute with a slim 13.1-inch width. Digital controls allow precise temperature adjustments from 80°F to 140°F in 1° increments. This unit suits households needing reliable on-demand hot water for multiple fixtures while saving space through wall-mounted installation.
Pros
- 18kW output provides up to 4.4 GPM flow rate
- Digital display allows 1°F temperature adjustments from 80°F to 140°F
- ETL certified for safety with overheating and leakage protection
- Self-modulating technology adjusts energy use based on inlet water temperature
Cons
- Requires two double-pole 40A breakers and 8AWG wire
- Limited to indoor installation only
- No remote control or smart app connectivity listed
Good fit if
- You need a compact unit for tight wall spaces
- You want precise digital temperature control in 1° increments
- You have a dedicated 240V circuit with 80A capacity
Skip if
- You require outdoor installation capability
- You need a single 40A breaker setup
- You prefer analog dials over digital displays
Verdict: ThermoMate 18kW 240V Electric Tankless fits users who prioritize precise digital temperature control and compact dimensions. It serves well in homes with adequate electrical infrastructure for high-amperage demands.
ThermoMate 14kW Electric Tankless Water Heater
Best for: Small homes needing 3.4 GPM flow
- Fuel Type
- Electric
- Flow Rate
- 3.4 GPM
- Wattage
- 14 kW
- Installation Location
- Indoor
- Voltage
- 240 V
- Temperature Control
- 86°F to 131°F
View on Amazon: ThermoMate 14kW Electric Tankless Water Heater Affiliate link
The ThermoMate EH140 is a 14 kW, 240V electric tankless water heater designed for indoor installation. It delivers up to 3.4 GPM of hot water, making it suitable for running one to two fixtures simultaneously. Its compact gray body measures 15.9 x 11.2 x 3 inches and weighs 13 pounds. The unit features a cast aluminum heating element and ETL certification for safety. It offers precise digital temperature control for steady output.
Pros
- 14 kW power output at 240V
- 3.4 GPM flow rate for multi-fixture use
- Compact 15.9 x 11.2 x 3 inch footprint
- ETL listed for North American safety standards
Cons
- Requires a dedicated 60 Amp circuit breaker
- Needs 6 AWG copper wiring for installation
- Lower wattage than the 19 kW Eemax EX190T2
Good fit if
- You need a compact unit for a small home or apartment
- You want ETL certification for peace of mind
- You can install a 60 Amp double-pole breaker
Skip if
- You require more than 3.4 GPM of flow
- You cannot upgrade your electrical panel to 150 Amps
- You need a unit with higher than 14 kW power
Verdict: ThermoMate 14kW Electric Tankless Heater fits small households that need reliable hot water for one or two fixtures. It suits buyers who have the electrical capacity for a 60 Amp circuit and value a compact, certified indoor unit.
Stiebel Eltron Tempra 29 Plus 28.8kW Tankless
Best for: High-demand households with 200 amp service
- Fuel Type
- Electric
- Wattage
- 28.8 kW
- Voltage
- 208 V, 240 V
- Dimensions
- 14.5 x 16.6 x 4.63 in
- Use
- Whole House
- Weight
- 19 pounds
View on Amazon: Stiebel Eltron Tempra 29 Plus 28.8kW Tankless Affiliate link
The Stiebel Eltron Tempra 29 Plus delivers 28.8 kW of power at 240 volts for continuous hot water. It measures 14.5 x 16.6 x 4.63 inches and weighs 19 pounds. The unit features two temperature memory presets for easy adjustment. You need three dedicated 40 amp breakers and 8 gauge copper wiring. This high-capacity heater suits households with multiple simultaneous hot water needs.
Pros
- 28.8 kW output at 240 volts
- Two temperature memory presets
- Compact 14.5 x 16.6 x 4.63 inch design
- No venting required
Cons
- Requires three separate 40 amp breakers
- Needs 8 gauge copper wiring
- Demands a minimum 200 amp total service
Good fit if
- You have a 200 amp electrical service
- You need high flow for multiple fixtures
- You want preset temperature memory
Skip if
- You have only a 100 amp service
- You cannot install three 40 amp breakers
- You prefer plug-in installation
Verdict: Stiebel Eltron Tempra 29 Plus 28.8kW is a high-output electric heater for homes with robust electrical infrastructure. It fits buyers who need reliable hot water for multiple bathrooms and have the space for three dedicated breakers.
Specifications side by side
| Spec | Eemax 19 kW Electric Tankless Water Heater | Rheem 18kW 240V Electric Tankless Water Heater | Camplux 6000W 240V Point-of-Use Tankless Water Heater | VEVOR 30-Gallon 5000W Electric Water Heater | Thermomate 18kW Electric Tankless Water Heater | ThermoMate 14kW Electric Tankless Water Heater | Stiebel Eltron Tempra 29 Plus 28.8kW Tankless |
|---|---|---|---|---|---|---|---|
| Fuel Type | Electric | Electric | Electric | Electric | Electric | Electric | Electric |
| Flow Rate | not specified | 4.4 GPM | 1.07 GPM at 35°F rise | not specified | Up to 4.4GMP | 3.4 GPM | not specified |
| Wattage | 19KW | 18 kW | 6000 W | 5000 W | 18kW | 14 kW | 28.8 kW |
| Installation Location | not specified | not specified | not specified | not specified | Indoor | Indoor | not specified |
| Capacity | not specified | not specified | not specified | 30 gal | not specified | not specified | not specified |
| Voltage | 240V | 240 V | 240 V | 240 V | 240V | 240 V | 208 V, 240 V |
| Temperature Control | Thermostatic control | ±1°F | not specified | not specified | 80°F to 140°F, ±1°F | 86°F to 131°F | not specified |
| Certification | not specified | not specified | ETL Listed | not specified | ETL | ETL | not specified |
| Dimensions | 5 x 11 x 11 inches | 3.5 x 14.5 x 18.5 inches | 10.95 x 7.4 x 2.52 inches | 40.2 x 17.7 x 17.7 inches | 17.12" x 13.12" x 3.12" | 15.9" x 11.2" x 3" | 14.5 x 16.6 x 4.63 in |
| Use | not specified | Whole House | not specified | Commercial | not specified | not specified | Whole House |
| Weight | not specified | 14.8 pounds | 4.9 pounds | 74.5 pounds | not specified | 13 pounds | 19 pounds |
| Size | 5 x 11 x 11 inches | Small | not specified | 30 Gal | 240V/18kW | not specified | 29 (kW) |
| Color | Gray | Gray | White | Gray | Gray | Gray | White |
| Model | EX190T2 | RTEX-18 | TE06ProN5 | FJI-POR-120S2 | ET180 | EH140 | 239223 |
Frequently asked questions
What is the smallest tankless water heater available as an alternative?
The Camplux TE06ProN5 is the most compact option listed. It measures just 7 by 10 by 7 inches and weighs only 4.9 pounds. This small footprint makes it ideal for point-of-use applications under a single sink. You get instant hot water without taking up much space in tight cabinets or closets.
Which alternative is best for whole-house hot water needs?
The Rheem RTEX-18 is designed for whole-house use. It provides 18 kW of power at 240V, offering steady performance for multiple fixtures. At 14.8 pounds, it is lightweight yet durable. You get precise temperature control and efficient power adjustment for consistent hot water throughout your home.
Is there a tankless heater with higher wattage than the Eemax?
Yes, the Stiebel Eltron Tempra 29 Plus offers 28.8 kW of power. This high output suits households with 200 amp electrical service. It requires three dedicated breakers for installation. You get reliable hot water for multiple bathrooms, provided you have the necessary electrical infrastructure in place.
What is the best option for small commercial spaces?
The VEVOR FJI-POR-120S2 is the best commercial choice. It is a 30-gallon electric tank heater, not tankless, but provides stored hot water. It weighs 74.5 pounds and measures 40.2 inches tall. You get simultaneous outlet support, which is ideal for small businesses or large families needing steady supply.
Which heater is best for precise digital temperature control?
The Thermomate ET180 features precise digital temperature control. It is an 18 kW unit that fits well in tight spaces. Its dimensions are 13.1 by 17.1 by 13.1 inches. You get reliable performance for homes with adequate electrical infrastructure, ensuring you maintain your desired water temperature accurately.
What is the lightest tankless model on this list?
The Camplux TE06ProN5 is the lightest, weighing only 4.9 pounds. It is a 6000W point-of-use heater designed for single sinks. Its compact 7 by 10 by 7 inch size allows easy mounting. You get a simple, efficient solution for instant hot water without the bulk of larger units.
Which unit is best for small homes needing 3.4 GPM flow?
The Thermomate EH140 is best for small households needing 3.4 GPM. It is a 14 kW unit requiring a 60 Amp circuit. It measures 11.2 by 15.9 by 11.2 inches. You get a certified indoor unit that provides reliable hot water for one or two fixtures efficiently.