EcoSmart 36 kW Electric Tankless Water Heater Review: Specs, Pros and Cons
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This ecosmart 36 kw electric tankless water heater review focuses on the ECO 36 model. It delivers 36 kW of power at 240 volts. The unit is compact, measuring 17 x 21 x 3.6 inches. It weighs just 18.4 pounds. The device is 99.8-percent energy efficient. It features a digital output temperature display. The unit is manufactured in the United States. It uses 3/4 inch NPT pipe fittings. You need four 40-amp breakers for operation. This listing explains these specs and who the heater suits.
What stands out
- 36 kW output at 240 volts
- 99.8-percent energy efficiency
- Compact dimensions of 17 x 21 x 3.6 inches
- Digital output temperature display
- Manufactured in the United States
Who it fits
Good fit for
This heater suits homes with strong electrical service. You need four 40-amp breakers and a 150-amp main panel capacity. It works well for whole-house heating in mild climates. The compact size fits tight spaces. The digital display lets you set exact water temperatures. You get hot water on demand without a tank. The high efficiency reduces energy waste. This setup is ideal for users who want precise control and space savings.
Who should skip it
Skip this model if your home lacks adequate electrical capacity. You must install four 40-amp breakers. The 36 kW demand may trip panels in older homes. It is not suitable for very cold climates with high simultaneous usage. You cannot use gas lines or lower voltage circuits. The unit requires 240 volts. If your electrical panel cannot handle the load, this heater is not for you. Check your breaker space before buying.
Verdict: The EcoSmart ECO 36 offers high efficiency and precise temperature control in a small footprint. It is a solid choice for homes with sufficient electrical capacity and mild heating needs.
Key specs explained
36 kW Wattage
This power rating determines how quickly the unit heats water. A 36 kW output supports multiple simultaneous uses, such as a shower and a kitchen sink. You should compare this to lower wattage models if you need higher flow rates. This spec is critical for sizing the unit correctly for your household demand.
240 V Voltage
This indicates the electrical requirement for operation. You must have a dedicated 240-volt circuit available. Most standard household outlets provide 120 volts, so you may need an electrician to install the correct wiring. Verify your home’s electrical capacity before purchasing to ensure compatibility with this high-power device.
17 x 21 x 3.6 inches Dimensions
These measurements describe the physical footprint of the unit. The slim depth allows it to mount on a wall in tight spaces, such as closets or utility rooms. You can compare this size to larger traditional tank heaters to save floor space. Ensure you have adequate clearance for maintenance access.
99.8-percent energy efficiency
This percentage shows how much input energy converts to heated water. Nearly all energy is used, with minimal waste. This high efficiency can reduce operating costs compared to less efficient models. You benefit from lower energy consumption for the same hot water output, making it a practical choice for energy-conscious buyers.
Design and build of ECO 36
The ECO 36 features a white finish that blends into utility spaces. According to the listing, the unit measures 17 by 21 by 3.6 inches. This compact footprint allows for installation in tight areas where space is limited. The device weighs 18.4 pounds, making it manageable for most mounting scenarios. You can attach it to standard 3/4 inch NPT pipe fittings, which simplifies integration into existing plumbing systems.
The front panel includes a digital output temperature display. This control lets you set the exact water temperature you need. You do not need to guess the heat level. The sleek design keeps the interface clean and easy to read. The unit is manufactured in the United States, which may matter for sourcing preferences.
Electric operation at 240 volts requires specific electrical setup. You need four 40-amp breakers to power the 36 kW output. This high amperage demand means you must ensure your home’s electrical panel can handle the load. The design prioritizes function over complex features. You get a straightforward unit that focuses on heating efficiency. The digital display provides clear feedback on performance. This build choice supports reliable daily use in homes that need consistent hot water flow.
Setup and everyday use
Installation requires careful attention to electrical requirements. This unit needs a 240-volt power supply. You must install four separate 40-amp breakers to handle the 36 kW load. The listing specifies a total capacity of 150 amps for the circuit. This is a significant electrical demand. You should consult a licensed electrician to ensure your home panel can support this. The water connections use 3/4 inch NPT pipe fittings. This standard size fits most residential plumbing lines. The compact dimensions of 17 by 21 by 3.6 inches allow for mounting in tight spaces like closets or utility rooms. The white finish helps it blend into these areas. Daily use is straightforward. A digital display shows the output water temperature. You can adjust this setting directly on the unit. The 99.8-percent energy efficiency rating means the device converts nearly all incoming electricity into heat. There is no standby heat loss, which is common with tank-style heaters. The unit is manufactured in the United States. This may be a factor for some buyers. The 18.4-pound weight makes it manageable for two people to mount, though wall anchors must be secure. You get hot water on demand. The flow rate depends on your inlet water temperature and the number of fixtures running. The digital interface provides clear feedback on performance. You do not need to worry about running out of hot water, as the system heats water continuously as it flows through the unit.
Before You Buy ECO 36
Owning this unit requires specific electrical infrastructure. You must confirm your panel can handle four 40-amp breakers. The listing notes a 150-amp total circuit requirement. Without adequate service, installation is impossible. Check your home’s wiring gauge. Thick copper wires are essential for safety. The 3/4-inch NPT pipe fittings dictate your plumbing setup. Ensure your existing pipes match this standard. You may need adapters or new fittings. Regular upkeep involves checking for mineral buildup. Hard water areas need periodic flushing. This model suits homes with high hot water demand. It fits alongside other electric options if you have the power. Gas models require venting, which you do not need here. However, they lack the 99.8-percent efficiency rating. If your electrical system is robust, this compact unit offers reliable performance. Verify all connections before use. The digital display helps monitor output temperature. Keep the area clear for maintenance access.
Check before you buy
- Confirm your electrical panel supports four 40-amp breakers and 150 amps.
- Check that your home wiring gauge meets the 36 kW load.
- Verify your plumbing pipes have 3/4-inch NPT fittings.
- Ensure you have space for a 17 by 21 by 3.6-inch unit.
- Plan for annual flushing if you have hard water.
The product at a glance
EcoSmart 36 kW Electric Tankless Water Heater
Best for: High-demand electric households
- Fuel Type
- Electric
- Wattage
- 36 kW
- Voltage
- 240 V
- Dimensions
- 17 x 21 x 3.6 inches
- Weight
- 18.4 pounds
View on Amazon: EcoSmart 36 kW Electric Tankless Water Heater Affiliate link
The EcoSmart ECO 36 is a 36 kW electric tankless water heater designed for high-demand households. It operates on 240 V power and features a compact white casing measuring 17 x 21 x 3.6 inches. The unit includes a digital temperature display and requires four 40 A breakers. It delivers 99.8 percent energy efficiency. This model suits users needing substantial hot water capacity for multiple fixtures simultaneously.
Pros
- 36 kW output for high flow rates
- 99.8 percent energy efficiency rating
- Digital output temperature display
- Compact dimensions: 17 x 21 x 3.6 inches
Cons
- Requires four 40 A circuit breakers
- Heavy duty electrical installation needed
- 18.4 pound weight requires sturdy mounting
Good fit if
- You need high capacity hot water for multiple bathrooms
- You have the electrical capacity for four 40 A breakers
- You want a compact unit with digital temperature control
Skip if
- You cannot install four 40 A breakers
- You prefer gas fuel sources over electric
- You need a unit under 20 pounds
Verdict: EcoSmart ECO 36 36 kW Electric Heater fits homes with strong electrical panels that need reliable, high-volume hot water. It is a solid choice for users prioritizing efficiency and digital control over easy installation.
Specifications side by side
| Spec | EcoSmart 36 kW Electric Tankless Water Heater |
|---|---|
| Fuel Type | Electric |
| Wattage | 36 kW |
| Voltage | 240 V |
| Dimensions | 17 x 21 x 3.6 inches |
| Weight | 18.4 pounds |
| Color | White |
| Model | ECO 36 |
Frequently asked questions
Is the EcoSmart ECO 36 suitable for whole-house hot water?
Yes, this unit is designed for high-demand households. Its 36 kW output supports multiple simultaneous uses, such as running a shower and a kitchen sink at the same time. This makes it a solid choice for homes with strong electrical panels that need reliable, high-volume hot water delivery.
What electrical requirements are needed for installation?
You must have a 240-volt power supply to operate this heater. The listing specifies a total capacity of 150 amps for the circuit. You need to install four separate 40-amp breakers to handle the 36 kW load safely. Adequate electrical service is mandatory for proper function.
How much space does the ECO 36 take up?
The unit is compact and fits in tight areas. It measures 17 inches in height, 21 inches in width, and 3.6 inches in length. This small footprint allows for installation in utility spaces where space is limited, while the white finish helps it blend into the surroundings.
How heavy is the EcoSmart 36 kW heater?
The device weighs 18.4 pounds. This light weight makes it easier to handle during installation compared to heavier tank-style units. Its compact dimensions and low mass allow for flexible mounting options in various utility rooms or closets without requiring additional structural support.
What is the main benefit of the 36 kW wattage?
The 36 kW power rating determines how quickly the unit heats water. Higher wattage supports greater flow rates, allowing you to run multiple fixtures simultaneously. You should compare this to lower wattage models if you need higher flow volumes for larger households or high-demand usage patterns.
Is this heater energy efficient?
Yes, the unit is 99.8-percent energy efficient. This high efficiency rating means minimal energy is lost during the heating process. You save on energy costs compared to less efficient models, as nearly all the electricity drawn is converted into heat for your water supply.