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Model # GL2.5S

Internet # 100051412

2.7 gal. 6-Year 1500-W 120-Volt Point-of-Use Mini Electric Water Heater

This item has been discontinued.
The Home Depot no longer carries this specific product.

$185.17 /each

  • Mounts on wall or the floor
  • Easy installation
  • Same-day installation in most areas. Call 1-855-400-2552 by noon.




Model # GL2.5S

Internet # 100051412

Store SO SKU # 1000895689

The Ariston/Bosch 2.7 gal. Electric Water Heater has a 2.7 gal. mini tank that fits under your sink to provide hot water right where you need it. The heater plugs right into a 120-Volt outlet and has a lightweight, compact design that's easy to handle and install. A glass-lined tank offers great insulation, while the heater's fast recovery rate eliminates long waits for hot water. A temperature-and-pressure relief valve enhances your safety.

  • 2.7 gal. mini tank fits under your sink to provide hot water right where you need it
  • Electric water heater is easy to maintain
  • Fast recovery rate eliminates long waits for hot water
  • 1 year warranty on the parts for your convenience
  • 98% thermal efficiency
  • Glass-lined tank offers great insulation
  • Plugs into a 120-Volt outlet
  • Installs independently or in-line with a large hot water source
  • Can be mounted on a wall

Info & Guides

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Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Tank Valve Size (in.) 
Water Connection Size (in.) 
Application Type 
Point of Use 
Finish Family 
Fuel Type 
Maximum Temperature (F) 
Minimum Temperature (F) 
Product Weight (lb.) 
15.5 lb 
Tank Capacity (gallons) 
Water Connection Location 
Water Heater Features 
Overheat Protection,Temperature Pressure Relief Valve 
Water Heater Profile 
Wattage (watts) 
Warranty / Certifications
Certifications and Listings 
1-UL Listed,CSA Listed 
ENERGY STAR Certified 
Labor Warranty 
No Warranty 
Part Warranty 
2 Year 


Rated 4.4 out of 5 by 193 reviewers.
Rated 5.0 out of 5.0 by Excellent solution for me! I have had this heater a couple of weeks now and I am very pleased. My master bathroom is quite a distance from my water heater and it has always taken several minutes to get hot water at the sink. It was not only an inconvenience but a waste of about 2 gallons waiting for hot water. It is installed under my sink vanity and takes up half my storage under there but it is worth it. Measure carefully. I had 1/4 inch leeway when I measured and it fit perfectly. The measurements provided on the Home Depot website are spot on. It requires a 120v outlet and uses 15 amps. You might have to install an outlet under the sink if there is no convenient way to power it. I drilled through the floor of the vanity and attached the unit to a dedicated 15 amp power strip which plugs into a GFI outlet next to the vanity. The only other thing on my 20 amp circuit are two Sonic toothbrushes, so no problems from that. The device is simple to operate. Set the thermostat and you are done. The box says easy one person installation. That is probably true for someone who is able to contort themselves under a small bathroom vanity and spend some time on their knees. There are two connections. I ran the hot water connector into the intake of the unit and then ran the output of the unit to the hot water faucet. When I say "I", I mean a plumber. I can do rudimentary plumbing but my knees and back make it difficult for me to work on the floor in small spaces. I set the unit inside a small cat litter box. No matter how good a water heater is, someday it is going to fail and if it leaks I didn't want 2.5 gallons of water leaking out onto the floor. Now we have instant hot water and wife loves it! April 29, 2015
Rated 5.0 out of 5.0 by Completely satisfied This was a Christmas present to my wife, who was having to wait many long minutes for warm water to arrive at her bathroom sink, on the opposite end of the house from our on-demand main water heater. This small heater has been the perfect solution. It fits nicely under the sink. Drawing only 1500 watts meant that an existing 120 volt, 15 amp circuit was used for the installation. I was easily able to plumb it in myself, tapping into the cold water supply under the sink, and running the hot-water line from the water heater to both bathroom sinks. (See attached photo.) I plugged the electrical cord into a timer, heating the water only between 6 and 9 AM. The water heats up from a cold start in about 15 minutes. For our morning wash-up, we never use more than the 2.5 gallon capacity, and the remaining water stays warm well into the afternoon. We’ve used it now for a couple of weeks, and couldn’t be happier. Although I don’t expect it, just in case a leak should develop, I placed the heater in a pan and built a small, electronic water alarm that will alert me to any problem. February 4, 2014
Rated 5.0 out of 5.0 by This is the easy, cheapest solution to get instant hot water. There are many Rube Goldberg-ish designs to get instant hot water in rooms far from the main hot water heater, but they all have drawbacks–either high cost, complexity, or technical issues. This small, 2 1/2 gallon tank fits under a counter, is easily connected and uses house power–no electrician needed. Any average user can do the installation in 20 mins or less. I'm a graduate engineer and have evaluated other attempted solutions to this problem, and this is far away the cheapest, and safest answer. I love it! December 10, 2013
Rated 3.0 out of 5.0 by Leaking Tank and poor design This was a install done by a plumbing company and they installed this heater. It is not a bad heater but it's been 6 years now since the work was originally done and I'm just now installing my 3 replacement heater same model each time but always the same problem after 2 or 3 years LEAKING from the tank. I wish they made a drain on the bottom of the tank so when you change the element and rod 2 to 3 times a year it is faster and neater. February 24, 2013
Rated 5.0 out of 5.0 by Great product! This heater was very easy to install in the guest bathroom located on the other side of the house from the main water heater. I put it into a 6" high clear plastic storage container to catch any possible leaks in the future. With the temp setting on warm, we can quickly and comfortably wash our hands. December 31, 2013
Rated 5.0 out of 5.0 by The Ariston 2.5 gallon water heater really made a difference in my art studio! The Ariston 2.5 gallon water feature provides me with instant hot water and fits nicely under the sink in the bathroom of my art studio. December 21, 2013
Rated 5.0 out of 5.0 by Highly Recommended !! Performs EXACTLY as described !! Very minimal wait time for water heat up...Installation was easy !! I needed point of use tank-less water heater for my Wild Game Processing Shop and this Ariston 2.5 gal. unit has met (and exceeded) my expectations!! June 19, 2012
Rated 5.0 out of 5.0 by Nice unit and a fair price I am not a plumber and this unit took about 15 minutes to install using flexible connectors, and I had hot water about 10 minutes after that. I like the fact you can adjust how hot you want the water easliy on the dial in front of the unit. February 5, 2013
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