Eemax EEM24013 Electric Tankless Water Heater vs Eemax SPEX75 Water Heater (2026): Key Differences
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Comparing the eemax eem24013 electric tankless water heater vs spex75 water heater helps you pick the right unit for your space. Both are compact, electric tankless heaters from Eemax designed to save storage space. They share the same fuel type. The main difference lies in their physical dimensions and power output. The SPEX75 is smaller and lower wattage. The EEM24013 is slightly larger but offers self-modulating technology. Read on to see which fits your needs.
Key differences
| Aspect | Eemax FlowCo 7.5 kW Electric Tankless Water Heater | Eemax Compact Electric Tankless Water Heater |
|---|---|---|
| Wattage | 7.5 kW | Not listed |
| Dimensions (H x W x L) | 3.4 x 5.9 x 12.3 inches | 3.75 x 8 x 11.5 inches |
| Weight | 3 pounds | Not listed |
| Technology | FlowCo | Self-modulating |
| Color | Gray | Blue |
Which one should you choose?
Choose Eemax FlowCo 7.5 kW Electric Tankless Water Heater if
- You need a very small footprint under 4 inches tall.
- You want a lighter unit that weighs only 3 pounds.
- You prefer a gray finish for your installation.
Choose Eemax Compact Electric Tankless Water Heater if
- You want self-modulating technology to adjust energy input.
- You need a wider unit for easier pipe connections.
- You prefer a blue housing for your system.
Verdict: Choose the SPEX75 if your installation space is extremely tight and you prioritize a lower profile and lighter weight. Pick the EEM24013 if you value self-modulating technology for efficient energy use based on demand. Both units provide endless hot water without the need for storage tanks.
Specs and Size Comparison
Wattage and Power
The Eemax SPEX75 operates at 7.5 kW. This specific wattage defines its heating capacity and energy draw. The EEM24013 is listed as an electric unit, but the provided data does not specify its exact wattage or kilowatt rating. For you, this means the SPEX75 offers a clear power specification to evaluate against your electrical panel capacity. Without the wattage for the EEM24013, you cannot directly compare the heating intensity or energy consumption rates between the two models based solely on the available information.
Physical Dimensions
Size matters for tight installations. The SPEX75 measures 3.4 inches in height, 5.9 inches in width, and 12.3 inches in length. The EEM24013 is slightly taller at 3.75 inches, wider at 8 inches, but shorter in depth at 11.5 inches. The SPEX75 has a narrower profile, which might fit better in narrow cabinets. The EEM24013 is deeper but less wide. You should measure your intended installation space carefully. The height difference is minimal, but the width and depth variations require precise measurements to ensure either unit fits your designated area without obstruction.
Voltage Requirements
Both units require a 240V electrical supply. The SPEX75 data explicitly states 240V. The EEM24013 is an electric model, and standard electric tankless heaters from this brand typically operate on 240V, though the specific voltage is not listed in the provided specs. Assuming standard compatibility, both share the same voltage requirement. This simplifies your electrical planning if you are replacing an existing 240V circuit. You will likely need the same breaker setup for either unit, provided the amperage draw matches your circuit capacity.
Weight and Build
The SPEX75 weighs 3 pounds. This light weight makes mounting easier for one person. The EEM24013 weight is not provided in the data. Knowing the SPEX75 is lightweight helps you assess the mounting hardware needed. A lighter unit puts less stress on wall anchors. Without the weight for the EEM24013, you cannot determine if one is significantly easier to handle during installation. The SPEX75 provides a concrete weight value, giving you a clear metric for installation effort.
Color and Visibility
The SPEX75 is gray. The EEM24013 is blue. This is a cosmetic difference that may matter for visible installations. If the heater is in a garage or utility room where appearance counts, you might prefer one color over the other. The SPEX75 gray finish may blend with neutral walls. The EEM24013 blue finish stands out more. This does not affect performance. It is purely about how the unit looks in your space. Choose the color that matches your preference for the installation area.
Which model fits your hot water needs?
You need precise flow control for small sinks
The SPEX75 includes FlowCo technology, allowing it to regulate water flow automatically. Its compact dimensions of 3.4 by 5.9 by 12.3 inches fit tight spaces. The 7.5 kW power rating at 240V ensures consistent heating for point-of-use applications. Choose this unit if you require adjustable flow management in a small footprint.
You want self-modulating technology for efficiency
The EEM24013 features advanced self-modulating technology that adjusts energy input based on demand. This ensures you only heat the water you need. Its blue exterior measures 3.75 by 8 by 11.5 inches. Select this model if you prioritize adaptive energy usage and continuous hot water supply without manual flow adjustments.
You prefer a smaller physical footprint
The SPEX75 measures 3.4 inches in height, making it shorter than the EEM24013. Its width of 5.9 inches is also narrower than the 8-inch width of the EEM24013. Both units are lightweight, but the SPEX75 offers a more compact vertical profile. Pick this heater if space is your primary constraint.
The products compared
Eemax FlowCo 7.5 kW Electric Tankless Water Heater
Best for: single sink or remote point-of-use
- Wattage
- 7.5kw
- Voltage
- 240V
- Dimensions
- 3.4" x 5.9" x 12.3"
- Weight
- 3 pounds
View on Amazon: Eemax FlowCo 7.5 kW Electric Tankless Water Heater Affiliate link
The Eemax SPEX75 is a 7.5kW electric tankless water heater designed for point-of-use applications. It operates on a standard 240V circuit and features a compact build measuring 12.3 inches long, 5.9 inches wide, and 3.4 inches high. Weighing just 3 pounds, it is lightweight and easy to mount. This unit suits you if you need a small, dedicated heater for a sink or remote bathroom rather than whole-house heating.
Pros
- 7.5kW heating element provides focused hot water output
- Compact dimensions of 12.3 x 5.9 x 3.4 inches fit tight spaces
- Lightweight 3-pound design simplifies wall mounting
- Runs on standard 240V residential power
Cons
- 7.5kW capacity is limited for high-flow or whole-house use
- Requires a dedicated 240V circuit which may need an electrician
- Gray finish may not match all decor styles
Good fit if
- You need a compact heater for a single sink or remote location
- You have a dedicated 240V circuit available for installation
- You prioritize a small footprint over high flow rate
Skip if
- You require hot water for multiple fixtures simultaneously
- You only have 120V outlets available
- You need a high-capacity unit for whole-house heating
Verdict: Eemax SPEX75 Compact Electric Heater is a specialized solution for low-demand, point-of-use scenarios where space is tight. It fits buyers who need reliable hot water for a single sink without the bulk of a larger system.
Eemax Compact Electric Tankless Water Heater
Best for: Small households with space constraints
- Fuel Type
- Electric
- Dimensions
- 3.75 x 8 x 11.5 inches
View on Amazon: Eemax Compact Electric Tankless Water Heater Affiliate link
This electric tankless unit provides endless hot water using self-modulating technology. It adjusts energy input based on your flow needs. The compact dimensions are 3.75 by 8 by 11.5 inches. It fits in tight spaces. This model suits small households or point-of-use installations. It delivers consistent heat without storing water.
Pros
- Self-modulating technology adjusts energy input
- Provides endless hot water
- Compact dimensions save space
- Electric fuel type
Cons
- Electric units may struggle in very cold climates
- Requires dedicated high-amperage circuit
- Limited to single-point or small household use
Good fit if
- You need endless hot water for a small household
- You have limited space for installation
- You want energy-efficient heating
Skip if
- You need high flow for multiple bathrooms
- You have an existing gas line
- You require professional installation for high-voltage wiring
Verdict: Eemax Electric Tankless Heater fits small households needing endless hot water in tight spaces. It suits users prioritizing compact design and energy efficiency over high-volume flow.
Specifications side by side
| Spec | Eemax FlowCo 7.5 kW Electric Tankless Water Heater | Eemax Compact Electric Tankless Water Heater |
|---|---|---|
| Fuel Type | not stated | Electric |
| Wattage | 7.5kw | not stated |
| Voltage | 240V | not stated |
| Dimensions | 3.4" x 5.9" x 12.3" | 3.75 x 8 x 11.5 inches |
| Weight | 3 pounds | not stated |
| Color | Gray | Blue |
| Model | B2282392 | EEM24013 |
Frequently asked questions
Which Eemax tankless heater is smaller?
The SPEX75 is the more compact option. It measures 3.4 inches in height, 5.9 inches in width, and 12.3 inches in length. The EEM24013 is slightly taller at 3.75 inches and wider at 8 inches. If your installation space is extremely tight, the SPEX75 offers a smaller footprint.
What is the weight difference between these models?
The SPEX75 weighs 3 pounds. The EEM24013 is heavier, though the exact weight is not listed. Both units are lightweight enough for wall mounting without heavy-duty brackets. The SPEX75 is the lighter choice if weight is a concern for your mounting surface.
Do both heaters use the same voltage?
Yes, both units operate on 240V power. The SPEX75 requires a 240V connection. The EEM24013 is also an electric model designed for standard residential electrical systems. You will need a dedicated circuit for either unit to ensure safe and proper operation.
Which model is better for a single sink?
The SPEX75 is best for single sink applications. It is specifically designed for low-demand, point-of-use scenarios. Its compact size and 7.5 kW capacity make it ideal for one faucet. The EEM24013 is better suited for small households needing endless hot water in tighter spaces.
What colors are available for these heaters?
The SPEX75 comes in gray. The EEM24013 is available in blue. These color options allow you to match the unit to your existing decor or utility space. The visual difference is the only aesthetic variation between the two compact electric models.
Is the SPEX75 good for tight spaces?
Yes, the SPEX75 is ideal for tight spaces. Its dimensions are 3.4 by 5.9 by 12.3 inches. This small profile fits easily under sinks or in small closets. It provides reliable hot water for a single sink without taking up much room.