4 gallon mini-tank water heater, perfect for point-of-use and garage applications.
Waiwela Mini Tank heaters combine quality materials with efficient manufacturing techniques to provide an affordable solution to a common problem. Every day, millions of gallons of fresh water is wasted waiting for hot water to reach the faucet or shower. Installing a Waiwela Mini tank heater under your sink eliminates the wait and reduces fresh water waste.
• CFC free
• Glass-lined tank
• Floor or wall mount
• Attached 36" power cord with two-prong plug
• Install at point-of-use
• Under sink installation
• Available in 1, 2.5, 4 and 6 gallon capacities
• Adjustable thermostat with overheat protection
• Pressure release valve (T&P valve) can be replaced with any one that is rated for 150 psi, 210°F, 3/4" thread
|Temperature Range||50°F - 140°F|
|Power at 120 VAC||1400 Watts|
|Water Pressure||150 PSI|
|Recovery at 90°F Rise||6.5 GPH|
|Water Connection||1/2" NPT||3/4" NPT|
|Weight (empty)||12.5 lbs||20 lbs||24 lbs||26 lbs|
|Pressure Relief Valve||Included|
|Height (housing only
not including water connections)
|Height (including PRV at top)||16"||18"||22.75"||21.5"|
|Depth including dial||10"||10.375"||10.375"||15.5"|
** Example: The WM-4.0 has a 4 gallon capacity. At 6.5 gallons per hour, it will take 37 minutes for the tank to heat 4 gallons from 50°F to the unit's maximum temp of 140°F.
• Maintenance closet
• Any under-the-sink application
• 2 Year warranty on parts
• 6 Year limited warranty on tank
Frequently Asked Question ("FAQ")
Q1: What are the temperature settings for the dial on the front of the unit?
A1: The dial has four positions: Snowflake (*), 1, 2, 125°F, and Max.
≈ The Snowflake setting is 50°F. This setting will protect water in the tank and pipes inside the unit from freezing.
≈ The 1 setting is approximately 105°F, but can vary a few degrees.
≈ The 2 setting is approximately 113°F, but can vary a few degrees.
≈ The Max setting is 140°F.
Q2: How long before the hot water runs out?
A2: We answer this question in our article about mini-tanks. Scroll halfway down on the article.