Ecosmart US EcoSmart ECOS 27 Tankless Review: Specs, Pros and Cons
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This ecosmart us ecosmart ecos 27 tankless review covers the EcoSmart ECOS 27, a compact electric water heater designed for on-demand hot water. It delivers up to 27 kW of power at 240 volts. The unit measures just 19 by 4.25 by 9.25 inches and weighs 10.9 pounds. It heats water within 1 degree of your selected temperature. This model is built for efficiency and space savings, making it suitable for specific low-flow applications. You get endless hot water without the bulk of a traditional tank. The self-modulating technology adjusts flow to maintain consistent performance.
What stands out
- 27 kW output at 240 volts provides consistent heating for point-of-use applications.
- Compact dimensions of 19 x 4.25 x 9.25 inches allow wall mounting or under-sink installation.
- Maintains water temperature within 1 degree of the selected setting for consistent performance.
- 96% thermal energy efficiency reduces waste by only heating water when needed.
Who it fits
Good fit for
This unit suits buyers with limited space who need hot water for a single bathroom, small sink, or office breakroom. The 2.7 to 6.6 GPM flow rate works well for low-demand setups where inlet water temperatures are moderate. If you want a compact electric heater that mounts on a wall and saves energy by avoiding standby heat loss, this model fits your needs. It is ideal for point-of-use installations where a full-house system is unnecessary.
Who should skip it
You should look elsewhere if you need to supply hot water for multiple bathrooms simultaneously. The flow rate of up to 6.6 GPM may not meet the demands of large showers or high-flow fixtures. If your inlet water is very cold, the actual flow rate will drop closer to 2.7 GPM. This unit is not designed for whole-house heating or high-demand commercial environments. Consider a higher-capacity gas model or a larger electric unit for those scenarios.
Verdict: The EcoSmart ECOS 27 is a compact, efficient choice for low-flow point-of-use applications. It delivers consistent temperature control in a small footprint.
Key specs explained for this unit
Wattage: 27 kW
This power rating determines how much water you can heat at once. At 27 kilowatts, the heater supports flow rates between 2.7 and 6.6 gallons per minute. This makes it suitable for a single bathroom or low-flow point-of-use applications. If you need to run multiple showers simultaneously, you might need a higher wattage model to maintain consistent water temperature.
Voltage: 240 V
The unit requires a dedicated 240-volt electrical circuit, similar to what a large dryer uses. You must ensure your home has the correct wiring and breaker capacity before installation. Standard 120-volt outlets cannot power this device. Check your electrical panel to confirm you have the necessary infrastructure to support this high-voltage demand safely and effectively.
Flow Rate: 2.7 to 6.6 GPM
Gallons per minute indicates the volume of hot water delivered. This range depends on your incoming water temperature. In colder climates with lower inlet temperatures, expect the lower end of this range. In warmer regions, you may achieve higher flow rates. This metric helps you determine if the unit can meet the demands of your specific fixtures and usage habits.
Temperature Control: within 1 degree
Self-modulating technology adjusts the heating elements to keep water temperature stable. This feature ensures consistency within one degree of your selected setting. You avoid sudden temperature fluctuations when other water sources are used nearby. This precision improves comfort and efficiency by only heating water as needed, rather than maintaining a large tank at a constant high temperature.
Dimensions: 19 x 4.25 x 9.25 inches
These compact measurements allow the unit to fit in tight spaces. It is significantly smaller than traditional tank heaters, saving valuable floor or closet space. You can install it on a wall or at the point of use. Measure your available area carefully to ensure the unit fits, as its vertical orientation requires specific clearance for proper ventilation and access.
Design and Build Overview
According to the listing, the EcoSmart ECOS 27 features a white finish and measures 19 inches in height, 9.25 inches in width, and 9.25 inches in depth. The unit weighs 10.9 pounds. This compact footprint allows it to be 90% smaller than traditional tank heaters. You can install it on a wall or place it at the point of use. The small size makes it suitable for tight spaces like under a sink or in a closet. It does not require the floor space that a large tank demands.
The heater uses electric power at 240 volts. It delivers 27 kilowats of heating capacity. This power level supports flow rates between 2.7 and 6.6 gallons per minute. The actual flow depends on your inlet water temperature. The unit includes self-modulating technology. This system continuously monitors water temperature and controls flow rates. It ensures consistent performance within 1 degree of your selected temperature. You get endless hot water that never runs out.
The design prioritizes energy efficiency. It is 96% thermally efficient. The heater only activates when you need hot water. It does not maintain a reservoir of hot water like a tank model. This means you do not waste energy keeping water warm when no one is using it. The compact layout and electric operation make it a practical choice for small households or specific point-of-use applications. The white exterior blends easily into most utility areas.
Setup and Daily Operation Guide
Installing this unit requires a dedicated 240-volt electrical circuit. The listing specifies a draw of 112.5 amps. You must ensure your home’s electrical panel can support this load before mounting. The compact dimensions of 19 by 4.25 by 9.25 inches allow for wall mounting or point-of-use placement. This flexibility lets you install it close to the fixture it serves, reducing heat loss in the pipes.
Once connected, the self-modulating technology manages the heating process automatically. It continuously monitors water temperature and adjusts flow rates to maintain consistency. The system aims to keep the output within one degree of your selected setting. This means you do not need to manually tweak settings during use. The heater only activates when water flows through it, which contributes to its 96% thermal efficiency rating. It does not maintain a reservoir of hot water, eliminating standby energy losses.
In daily use, expect a flow rate between 2.7 and 6.6 gallons per minute. This range depends on the temperature of the incoming water. In colder climates, the flow rate will be lower to ensure the water reaches the desired temperature. The unit is designed for low-flow applications, such as a single bathroom sink or an office breakroom. It provides endless hot water without running out, as long as the electrical supply remains stable. The white finish blends into most utility spaces.
Before You Buy This Unit
Before you install this unit, verify your electrical capacity. The listing specifies a 112.5-amp draw at 240 volts. You need a dedicated circuit that can handle this load. If your panel is full, you may need an upgrade. This model is best for point-of-use applications or small bathrooms. It is not ideal for whole-house supply in cold climates. The compact size allows wall mounting or under-sink placement. You should check local codes for clearance requirements. Regular maintenance is minimal but recommended. Inspect connections for leaks periodically. Ensure the inlet water temperature is within expected ranges for your flow rate. This unit fits well among other electric options if space is tight. Compare its 27 kW output with other models to ensure it meets your peak demand. Avoid pairing it with high-flow fixtures like rain showers. Check compatibility with your existing plumbing if replacing a tank. The self-modulating technology helps maintain consistent temperatures. This feature reduces energy waste by adjusting power based on demand. Consider how this efficiency impacts your long-term usage patterns.
Check before you buy
- Confirm your electrical panel supports 112.5 amps
- Ensure you have a dedicated 240-volt circuit
- Check local building codes for mounting clearance
- Verify inlet water temperature for your climate
- Measure space for 19 by 4.25 by 9.25 inches
The product at a glance
EcoSmart 27 kW Electric Tankless Water Heater
Best for: single point-of-use electric applications
- Fuel Type
- Electric
- Flow Rate
- 2.7 to 6.6 GPM
- Wattage
- 27 kW
- Voltage
- 240 V
- Temperature Control
- within 1 degree
- Dimensions
- 19 x 4.25 x 9.25 inches
View on Amazon: EcoSmart 27 kW Electric Tankless Water Heater Affiliate link
The EcoSmart ECOS 27 is a 27 kW electric tankless water heater designed for point-of-use applications. It delivers 2.7 to 6.6 GPM with temperature control within 1 degree. Its compact 19 x 4.25 x 9.25 inch footprint saves space compared to traditional tanks. This unit suits small sinks, offices, or single bathrooms where high flow is not required.
Pros
- 96% thermal energy efficiency reduces standby loss
- Self-modulating technology maintains temperature within 1 degree
- Compact dimensions save 90% space versus tank heaters
Cons
- Requires 112.5 Amps circuit capacity
- Limited to 240 Volts input
- Only 1 year parts warranty coverage
Good fit if
- You need hot water for a single low-flow fixture
- You have a dedicated 240V electrical circuit available
- You want to save space under a sink
Skip if
- You need to supply multiple showers simultaneously
- You only have a standard 120V outlet
- You require a high flow rate above 6.6 GPM
Verdict: EcoSmart ECOS 27 Electric Tankless Heater fits users with strict electrical limits who need reliable heat for one sink or small bathroom. It delivers consistent temperature control without the bulk of a storage tank.
Specifications side by side
| Spec | EcoSmart 27 kW Electric Tankless Water Heater |
|---|---|
| Fuel Type | Electric |
| Flow Rate | 2.7 to 6.6 GPM |
| Wattage | 27 kW |
| Voltage | 240 V |
| Temperature Control | within 1 degree |
| Dimensions | 19 x 4.25 x 9.25 inches |
| Weight | 10.9 pounds |
| Color | White |
| Model | ECOS 27 |
Frequently asked questions
Is the EcoSmart ECOS 27 suitable for a whole house?
No. This unit is designed for single point-of-use electric applications. It delivers consistent heat for one sink or a small bathroom. It does not have enough capacity to serve multiple fixtures simultaneously. You should look for a higher wattage model if you need hot water for an entire home.
What electrical circuit does this heater require?
You need a dedicated 240-volt circuit. The unit draws 112.5 amps at full power. Your home’s electrical panel must support this load. Do not install this unit on a standard household outlet. Professional installation is recommended to ensure the wiring meets safety codes for this high amperage draw.
How big is the EcoSmart ECOS 27?
The unit is compact and measures 19 inches in height, 9.25 inches in width, and 9.25 inches in depth. It weighs 10.9 pounds. The white finish allows it to blend into utility spaces. Its small footprint makes it easy to mount in tight areas where traditional tank heaters would not fit.
Can I install this myself?
Installation requires specific electrical knowledge. You must verify your panel can handle 112.5 amps. The unit needs a dedicated 240-volt line. If your panel is full or outdated, you may need an upgrade first. Improper wiring can cause safety hazards. Hiring a licensed electrician is the safest approach for this high-power device.
What is the maximum flow rate for this model?
The heater supports flow rates between 2.7 and 6.6 gallons per minute. This capacity depends on your incoming water temperature. It works well for a single shower or sink. Using multiple fixtures at once will reduce the water temperature significantly. Plan your usage around a single point of access.
Does this heater use gas or electricity?
It is an electric unit. It operates on 240 volts and provides 27 kW of power. There are no gas lines or ventilation requirements. This makes installation simpler in homes without existing gas infrastructure. You only need access to a sufficient electrical circuit to operate the heating elements effectively.