Eemax EMT4 Mini-Tank Water Heater 4 Gallon 120V
Brand: Eemax | SKU: EMT4
Product Overview
The Eemax EMT4 MiniTank is a compact, point-of-use electric storage water heater designed to deliver an immediate supply of hot water for residential and commercial spaces. Holding a 4-gallon capacity and operating at 120V via a standard plug-in connection, this highly efficient system is ideal for single lavatory faucets, kitchen sinks, wet bars, and remote strip malls. Homeowners, DIYers, and contractors choose this model to eliminate long wait times for hot water from a central tank and to provide a standalone or booster heating solution directly underneath fixtures.
Key Features:
-
Immediate Hot Water Access: Stored-tank design eliminates the lag time for hot water to travel from a central system, preventing water waste at the tap.
-
Glass-Lined Tank: Engineered with a premium glass lining to ensure maximum durability, superior corrosion resistance, and a prolonged operational lifespan.
-
Simple Plug-In Operation: Fitted with a standard 120V three-prong power cord for straightforward electrical configuration without mandatory hardwiring.
-
Adjustable Temperature Dial: Accessible external dial controls allow users to quickly set and modulate water temperatures to their precise comfort requirements.
-
Booster Capability: Can be plumbed inline with a primary larger water heater to act as an effective thermal buffer, correcting initial cold-water pockets.
Technical Specifications:
-
Model: EMT4
-
Product Type: Electric Storage Mini-Tank Water Heater
-
Finish/Color: White/Grey
-
Material: Glass-Lined Steel Tank
-
Size/Dimensions: 14" H x 14" W x 12.25" D
-
Connection Size: 1/2" NPT Male Water Connections
-
Voltage: 120V
-
Wattage: 1.5kW (1,500 Watts)
-
Flow Rate: Stored capacity dependent; recovery time varies by temperature rise
-
Pressure Rating: 150 PSI Maximum Operating System Pressure
-
Location Rating: Indoor use only (Must protect from freezing environments)
Installation & Versatility:
-
Installation Type: Floor-standing or wall-mounted point-of-use positioning, typically positioned right under the sink.
-
Field Adjustment: External mechanical thermostat knob provides field-adjustable temperature settings ranging from 50°F to 140°F.
-
Compatibility: Employs universal 1/2" NPT water fittings located at the top of the unit for trouble-free plumbing integration with standard braided supply lines or copper piping.
-
Recommended Use: Under-sink kitchen installations, office breakroom restrooms, garage utility sinks, vacation cabins, and remote commercial handwashing stations.
Frequently Asked Questions
Does this unit require a temperature and pressure (T&P) relief valve?
Yes. Because this is a stored water system that builds internal pressure when heating, a CSA/ASME-rated temperature and pressure relief valve must be installed on the unit. A matching T&P valve is included in the box with the heater.
Can the EMT4 be mounted sideways or upside down?
No, this storage mini-tank water heater must be installed strictly upright with the 1/2" NPT water connections pointing straight up. Laying it on its side or upside down will prevent proper internal operation and may compromise safety mechanisms.
What are the electrical circuit requirements for this 4-gallon model?
The unit operates on regular 120V single-phase power, drawing a total of 12 Amps. It requires a dedicated, grounded electrical outlet backed by a standard 15 Amp circuit breaker.
Can I use this product as a booster heater for a dishwasher or central system?
Yes, the EMT4 can be seamlessly plumbed inline on the hot water supply side of a remote fixture. It stores the water and acts as a buffer to eliminate the initial burst of cold water that occurs while waiting for the main house heater to reach the tap.
Why We Like It:
The Eemax EMT4 is a fantastic problem-solving choice for isolated sinks because its premium glass-lined steel tank completely eliminates the frustration of running cold water while waiting for a distant central heater. Its 120V plug-and-play architecture means it integrates easily without major electrical panel overhauls. When mapping out your install space under the counter, ensure you leave adequate clearance on the top for the water lines and the safety T&P valve drainage pipe. Always make sure the 4-gallon reservoir is completely filled with water and all trapped air is bled out of your faucet before plugging in the power cord to avoid dry-firing the heating element.
