US
Eemax

Eemax LavAdvantage SPEX3512T Tankless Water Heater

  • 3.5 kW at 120 volts
  • Thermostatic microprocessor control, up to 140 F
  • Hot or cold water feed, works as an in-line booster
  • 1/2 inch copper compression fittings
  • 99% efficient
  • 1 year parts, 5 year heat exchanger warranty

Updated 20 days ago · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A thermostatic point of use heater and booster that cuts the wait for hot water at a remote sink. Its power suits a single fixture, and flow rate is not listed.

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ASIN: B076PWBG89Model: LavAdvantage SPEX3512TCategory: Water Heaters

Overview

A microprocessor thermostat controls this Eemax tankless heater, holding an accurate set temperature. It can feed from cold or act as a booster on a hot line, ramping down as tank water arrives.

Owners with a long wait for hot water at a kitchen or bar sink get immediate heat that tapers off once the main heater's water reaches the tap. Its heating power is modest at household voltage, so it suits a single fixture.

Who it's for

Remote sinks, pool houses, spare bedrooms and solar backup setups suit this booster. Whole-house hot water needs a much larger system.

Pros and cons

Pros
  • Holds a set temperature
  • Works on hot or cold feed
  • Booster cuts wait for hot water
  • Compact wall mount
Cons
  • Modest power for one fixture
  • Flow rate not listed
  • Short parts warranty

Performance notes

Temperature accuracy comes from the microprocessor control, which adjusts power to hold the setpoint. As a booster, it heats water at once and reduces its input gradually as hot water from the tank arrives.

Specifications

BrandEemax
ModelLavAdvantage SPEX3512T
Dimensions & fit
Item Depth4 inches
Item Dimensions W X H5.25 x 10.75 inches
Item weight3.5 pounds
Capacity & performance
Maximum Temperature140 F
Wattage3500 watts
Heat Output3.5 KW
Power & efficiency
Voltage120 volts
Efficiency99%
Power SourceCorded Electric
Construction & materials
Material TypeCopper
ColorWhite
Compatibility & installation
Mount typeWall
Included components
Included ComponentsTankless Water Heater
Unit Count1 Count
Warranty & support
Manufacturer Warranty Description1 year parts, 5 year heat exchanger
Other details
Special FeaturesThermostatic microprocessor control, hot or cold feed, in-line booster, rear or bottom electric entry
Fittings1/2 inch copper compression
Style NameLavAdvantage

Frequently asked questions

How big is the Eemax SPEX3512T?

It measures 5.25 x 10.75 inches with a 4 inch depth and weighs 3.5 pounds.