Considering a tankless water heater for your home, office, or commercial building? Eemax is a trusted American brand known for its durable, energy-saving electric tankless water heaters. But is an Eemax right for your needs, and which model should you pick? This review dives deep into Eemax’s best tankless water heaters, their features, who they’re best for, detailed product reviews, and how they compare to other top brands.
Quick Picks: Best Eemax Tankless Water Heaters
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Best Overall for Homes:
Eemax HomeAdvantage II HA027240 Tankless Water Heater -
Best Point-of-Use:
Eemax EMT6 Electric Mini Tank Water Heater -
Best Commercial:
Eemax PROSEL-24 Tankless Water Heater
Who Should Choose Eemax?
- Homeowners: Eemax offers both whole-house and point-of-use units, ideal for homes with modest hot water needs or renovations where gas isn’t an option.
- Apartment Owners & Landlords: Easy to retrofit under sinks, in utility closets, or for multi-family dwellings needing reliable electric hot water.
- Commercial & Industrial Use: Eemax is a leader in commercial electric tankless—restaurants, offices, gyms, and factories depend on their heavy-duty models.
- DIYers: Many Eemax models are DIY-friendly, with simple installs for electric upgrades or replacements.
Buyer’s Guide: How to Choose the Right Eemax Tankless Water Heater
- Flow Rate (GPM): Match the unit’s gallons-per-minute rating to your needs—whole-house models for showers and laundry, point-of-use for sinks.
- Power (kW): Higher kW means more hot water at once but requires larger breakers and wires. Check your panel capacity before buying.
- Temperature Rise: Know your incoming water temp—colder climates may need higher-power models to deliver hot water at your desired temperature.
- Installation Location: Most Eemax models mount on a wall near the point of use—verify space, electrical supply, and clearances.
- Warranty: Look for 5-year (or longer) warranties on heat exchangers and solid customer support.
- Certifications: Eemax heaters meet UL, CSA, and often NSF standards for safety and commercial use.
Detailed Reviews: Top Eemax Tankless Water Heater Models
Eemax HomeAdvantage II HA027240 Tankless Water Heater
- 27 kW, 240V, 3 x 40A breakers required
- Delivers up to 6 GPM—enough for 1–2 showers plus sink simultaneously (in warm climates)
- Digital temperature control with LCD display
- Compact, wall-mount design for space-saving installation
- 5-year warranty on heat exchanger
Pros:
- Instant, endless hot water for homes and small businesses
- Easy to use and adjust temperature
- Energy efficient—no standby heat loss
- Reliable American brand with strong service record
Cons:
- Needs a 200-amp electrical panel for most homes
- Lower GPM output in cold climates (plan accordingly)
Final Verdict: The best all-purpose Eemax tankless—powerful enough for most small to mid-sized homes.
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Eemax EMT6 Electric Mini Tank Water Heater
- 6-gallon mini tank—installs under sink for instant hot water
- 120V plug-in—no special wiring needed
- Compact, fits anywhere (cabinet, RV, tiny home, garage)
- Simple dial temperature adjustment
- Perfect for kitchens, bathrooms, workshops
Pros:
- True point-of-use—no wait for hot water at the tap
- Easy DIY install (plugs into standard outlet)
- Affordable and durable
Cons:
- Limited capacity—not for showers or laundry
- Needs periodic draining in hard water areas
Final Verdict: Best for instant hot water at a single faucet, bar, or remote sink.
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Eemax PROSEL-24 Tankless Water Heater
- 24 kW, 240V, 100A required
- Delivers up to 4.8 GPM—enough for commercial hand sinks or busy home kitchens
- Commercial-grade copper heat exchanger and heavy-duty construction
- Digital temperature control, anti-scald protection
- UL and CSA listed for commercial and institutional use
Pros:
- Rugged and reliable—made for high-use settings
- Precise temperature control for compliance and comfort
- Great for offices, restaurants, gyms, salons
Cons:
- Requires professional installation
- Not intended for full residential multi-shower use
Final Verdict: Excellent commercial choice—powerful, safe, and built to last.
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Comparison Table: Eemax Tankless Water Heater Models
| Model | Type | Power (kW) | Max GPM | Voltage | Best For | Price Link |
|---|---|---|---|---|---|---|
| HomeAdvantage II HA027240 | Whole House | 27 | 6.0 | 240V | Homes, condos | View |
| EMT6 Mini Tank | Point-of-Use | 1.5 | Single faucet | 120V | Sinks, bars, RV | View |
| PROSEL-24 | Commercial | 24 | 4.8 | 240V | Business, kitchens | View |
FAQ: Eemax Tankless Water Heaters
- Are Eemax water heaters made in the USA?
Yes, Eemax is based in Connecticut and has been manufacturing quality electric heaters since 1988. - Can Eemax replace a gas tankless unit?
Yes, if you have enough electrical capacity and GPM for your needs. For high-demand homes, gas may still be better, but Eemax is ideal for electric-only setups. - Do I need to flush or service Eemax units?
Yes, yearly descaling is best, especially in hard water areas—just like all tankless brands. - Is Eemax good for commercial use?
Absolutely. Eemax is trusted in restaurants, offices, salons, and gyms for reliable, code-compliant hot water. - What’s the warranty on Eemax heaters?
Most offer 5 years on the heat exchanger and 1 year on parts—always confirm for your chosen model.
Conclusion
Eemax tankless water heaters are a smart, reliable choice for homeowners, landlords, and business owners who want energy-efficient, space-saving hot water. Whether you need a whole-house model, instant hot water at the sink, or a commercial workhorse, Eemax has a proven solution. Choose the model that matches your needs, follow our installation and buyer tips, and enjoy trouble-free hot water for years to come!