Eemax EEM24027 Electric Tankless Water Heater - Compact Continuous Hot

In this review of the Eemax EEM24027 electric tankless water heater, the bottom line is simple: it is best for homeowners or small commercial sites that need a compact, efficient source of continuous hot water. The reviewer found the unit delivers on the primary promise - heating water on demand so you never run out - and is especially attractive where space is limited and electrical infrastructure can support 3 x 40 AMP breakers. Its combination of compact size and energy-efficient on-demand operation is the single biggest reason to buy for settings that require one to a few simultaneous outlets of hot water.

Key Features

• Continuous hot water: Tankless design provides hot water on demand so you only heat what you need, reducing standby losses.
• High power output: The 27 kilowatt rating supplies enough hot water for multiple fixtures at once in warmer climates and for a shower plus sinks in colder areas.
• Electrical requirements: Designed for 240 volt installations with a requirement of 3 x 40 AMP double pole breakers for reliable operation.
• Wire gauge guidance: Specifies 3 x 8 AWG wiring to match the breaker configuration and ensure safe, efficient power delivery.
• Space saving: Compact footprint saves valuable storage or utility room space compared with a tank-style heater.

Who It's For

The EEM24027 is aimed at homeowners, small apartments, vacation homes, and light commercial sites that need a dependable point-of-use or whole-bath solution and have access to a 240 volt electrical circuit that can support 3 x 40 AMP double pole breakers. It works well where a single shower and a couple sinks need hot water in cold climates, or multiple fixtures in warmer regions.

It is not the best fit for large families or properties that require multiple simultaneous heavy draws beyond the stated capacity, or for locations without appropriate electrical capacity; those buyers should consider higher-capacity models or consult an electrician before purchase.

Pros & Cons

Pros

• Provides continuous hot water on demand, eliminating the need for a storage tank.
• Compact size makes it easy to install in tight utility areas or closets.
• Energy efficient operation can reduce electricity use compared with tank heaters.
• Clear electrical specs (3 x 40 AMP breakers and 3 x 8 AWG) simplify installer planning.

Cons

• Requires significant electrical capacity and proper wiring, which may add installation cost.
• Performance varies with inlet temperature; capacity for multiple simultaneous showers is climate dependent.

Specifications

Our Verdict

The EEM24027 is a solid choice for buyers who need a compact, efficient source of continuous hot water and who can meet the electrical requirements. It delivers reliable on-demand heating and saves space and energy compared with tank systems, making it good value for small homes, apartments, or light commercial applications when installed by a qualified electrician.

Frequently Asked Questions

How many fixtures can it run at once?
Capacity depends on inlet temperature: about one shower plus two sinks in cold climates and up to four showers or sinks in warmer climates.

What electrical setup is required?
It requires a 240 volt supply with 3 x 40 AMP double pole breakers and 3 x 8 AWG wiring.

Is it suitable for commercial use?
Yes, it can be used for light commercial applications but check load demands and electrical capacity before installation.