Daisy
Last Updated: Feb 8, 2026
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| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Tank less water heaters provide a continuous Supply of hot water and only heats the water you need, when you need it
Instant, consistent and endless hot water
The most advanced, self-modulating technology available, meaning the unit will adjust how much energy needs to be input based on how much hot water is needed
Compact size saves valuable storage space
Before purchase and installation, Please verify that this EEM24013 is the correct size for your hot water needs
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Renovation Warehouse | 7.87 | ❌ | ❌ | ❌ |
Ease of installation - No T and P valve needed - Only bring one cold water line to lavatory
Connections: 3/8-Inch compression fittings at top of unit
Voltage: 120V, Power: 3. 5kW
Temperature rise at . 5GPM = 48 Degree Fahrenheit, Turn on: 0. 5. Dimensions: 10. 75-Inch W x 5. 25-Inch H x 3-Inch D
Amperage: 29
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Point-of-use, ideal for under the sink providing instantaneous hot water
Easy installation with 120V outlet plug
Adjustable temperature range (50°F to 140°F)
Wall and floor mountable
1/2" NPT Connections
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Temperature output based on flow rate, 41°F Temp. Rise @ 0.5 GPM
SafeStart technology. Recommended Wire Size-10
Mounts in any orientation
Self diagnostics and intelligent controls
Activates only on-demand, compact size
Cold water inlet only
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Tank less water heaters provide a continuous Supply of hot water and only heats the water you need, when you need it
Instant, consistent and endless hot water
The most advanced, self-modulating technology available, meaning the unit will adjust how much energy needs to be input based on how much hot water is needed
Compact size saves valuable storage space
Before purchase and installation, Please verify that this EEM12004 is the correct size for your hot water needs
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| ❌ | ❌ | ❌ |
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
This product is highly durable
This product adds a great value
This product is manufactured in china
Durable, easily replaceable heating elements
Copper heat exchanger with brass top
Digital temperature display
Control knob to adjust temperature in increments of 1 Degree
Recommended wire size: 3 x 8 AWG
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Buildcom | 9.74 | ❌ | ❌ | ❌ |
MN: HA008240
Country of manufacture: China
Manufacturer: Imax
Model number: HA008240
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Endless hot water
Brand name: Eemax
Model number: HA011240
Country of Origin: United States
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Get more hot water from any size tank
Increase deliverable hot water up to 45%
If you currently have 10 gauge wiring & 30 AMP breaker there is no addition feed required
Nearly double your shower time
Compact design, fits on existing tank
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Endless hot water
Brand name: Eemax
Model number: HA036240
Country of Origin: United States
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Hajoca Richmond | 9.67 | ✅ | ✅ | ✅ |
Instant, consistent and endless hot water
Protected internal temperature control, internal temperature control adjust in increments of 1 degree
99.8% energy efficient
Simple installation
Temperature range 80-140 degrees Fahrenheit
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| ❌ | ❌ | ❌ |
Cut energy costs - flow switch activates heater only on demand
Ease of installation - No T&P valve needed; 3/8" compression fittings
On demand hot water - never run out
Compatible with Hands-Free, Sensor, and Metering Faucets
Temperature rise at 0.5GPM = 75°F
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| GadgetsGo-com | 5.38 | ❌ | ❌ | ❌ |
Cut energy costs - flow switch activates heater only on demand (no standby heat loss)
99% Energy Efficient - The power you use goes into the water, not up the chimney
Compact Design - fits virtually below any sink
Ease of installation - No T&P valve needed - Only bring one cold water line to lavatory
Hot or Cold water feed
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| GadgetsGo-com | 5.44 | ❌ | ❌ | ❌ |
Cut energy costs - flow switch activates heater only on demand
Ease of installation - No T&P valve needed; 1/2" compression fittings
On demand hot water - never run out
Temperature rise at 1.0GPM = 68°F
0.7 GPM Turn on; 2 GPM flow rate
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| SIM Supply, Inc. | 9.81 | ❌ | ❌ | ❌ |
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Materro LLC | 9.74 | ❌ | ❌ | ❌ |
Instant, consistent and endless hot water
Protected internal temperature control, internal temperature control adjust in increments of 1 degree
99.8% energy efficient
Simple installation
Temperature range 80-140 degrees Fahrenheit
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Hajoca Richmond | 9.67 | ✅ | ✅ | ✅ |
Instant, consistent and endless hot water
Protected internal temperature control, internal temperature control adjust in increments of 1 degree
99.8% energy efficient
Simple installation
Temperature range 80-140 degrees Fahrenheit
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Eemax | 36 |
We've carried out a comprehensive analysis of 1,109 reviews on heaters, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select heaters priced around $354.18, with top brands including and
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