Model # GL4.0

Internet #100011293

Store SKU #479071

Store SO SKU #1000284685

Ariston 4.0 gal. 6-Year 1500-Watt 120-Volt Point-of-Use Mini Electric Water Heater
0052575600208

Ariston

4.0 gal. 6-Year 1500-Watt 120-Volt Point-of-Use Mini Electric Water Heater

  • Easy under-sink installation puts water right where you need it
  • Lightweight, compact design is easy to handle and install
  • Same-day installation in most areas. Call 1-855-400-2552 by noon.

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Product Overview

The Ariston/Bosch 4 Gal. Electric Water Heater has a 4 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.

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Customer Questions & Answers

14 Questions19 Answers

Customer Questions & Answers

4.0 gal. 6-Year 1500-Watt 120-Volt Point-of-Use Mini Electric Water Heater
4.0 gal. 6-Year 1500-Watt 120-Volt Point-of-Use Mini Electric Water Heater

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2 answers

How long is warranty and who to contact, stopped working less than 1 yr after installation

This question is from 4.0 gal. 6-Year 1500-Watt 120-Volt Point-of-Use Mini Electric Water Heater
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August 12, 2016
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Asked by
Pahrump, NV
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August 17, 2016
Answer: 
Warranty is 6 years. You would contact Bosch - info is in the papers that come with the unit.
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August 13, 2016
Answer: 
6 yr. 1-866-330-2729. Please try to be accessible to the unit when calling.
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2 answers

Is this heater on all the time?

This question is from 4.0 gal. 6-Year 1500-Watt 120-Volt Point-of-Use Mini Electric Water Heater
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February 9, 2016
We would use this only one day a week. Can this be easily turned off or does it try to keep the tank at temperature, in which case we would want to put it on a switched electrical outlet.
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Asked by
Dallas
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September 27, 2016
Answer: 
Hi Dave, you can put it on a surge protector with the on-off switch just give it about 30 minutes before you use it so it heats up good. It does have a thermostat so it will turn itself off and on to keep the temperature just right so you can leave it plugged in all the time. It works the same way as your home water heater.
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February 19, 2016
Answer: 
You can manually turn it off via the switch on the front. Keep in mind that when you turn it on again, it will take some time to reheat (the amount of time is dependent on the temperature of the water in the tank and the temperature of the incoming water). A solution may be to turn the unit down to its lowest setting as opposed to off. This will also address concerns with potential freezing.
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2 answers

What is the amperage of this unit?

This question is from 4.0 gal. 6-Year 1500-Watt 120-Volt Point-of-Use Mini Electric Water Heater
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Colorado
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November 5, 2015
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Asked by
Oregon, USA
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November 9, 2015
Answer: 
If you divide the wattage (1500) by the volts (120) you get the amperage (12.5). So you would probably want to provide a 15 Amp supply and breaker.
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November 7, 2015
Answer: 
12.5 amps
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2 answers

is this big enough to heat an average size dishwasher?

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November 1, 2015
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Asked by
Pahrump, NV
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August 17, 2016
Answer: 
Yes, never had a problem
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Oregon, USA
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November 2, 2015
Answer: 
I have no personal experience with using this with a dishwasher but I would expect the four (4) gallon capacity would be sufficient?
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Customer Reviews

4.0 gal. 6-Year 1500-Watt 120-Volt Point-of-Use Mini Electric Water Heater is rated 3.6 out of 5 by 60.
Rated 5 out of 5 by from Loved it for 6 1/2 years After 6 1/2 years it stopped working but I sure loved it every day! Plenty of really hot water flow, fast recovery, totally reliable and never a problem until one day after 6 1/2 years it died :(. Will get a new one!
Date published: 2016-08-18
Rated 5 out of 5 by from Great water heater, needs service every 6 months I have used this GL4 for 8 years now, very durable, no leaks. I learned very quickly that our water in San Diego is so hard that the GL4 needs cleaning every 6 months, which the instructions tell you how to do with vinegar and baking soda. The anode rod needs replacing at this time, but it is cheap, and I buy them 3 at a time from the suggested supplier. I suspect a lot of the problems people have reported is due to not cleaning the unit. I installed mine with flexible stainless hoses, making sure they are rated for hot water. I installed galvanized pipe closer to the water heater, as the temp seems to break down the rubber inside the stainless hoses in a couple of years if connected directly to the water heater. I bought a used small Rigid wet-dry vac, the type you can carry - to make cleanout easier. After I have cleaned the tank and heating element, I put a bit of vinegar inside the almost clean tank, and flush it with water. Then after hook it up I run the sink faucet without the aerator attached to flush the last bit of vinegar water and crud from the heater. To me, servicing every 6 months is a small price for the luxury of really nice hot water for my kitchen sink, dishwasher, and front load washer. I can't run my dishwasher and washing machine at the same time (unless running the washer on cold cycle), but who cares? I read some complaints about not enough water for showering - this is a fault of the contractors who put these in for this purpose, this is a 4 gallon water heater, enough for hand washing, and small tasks such as appliances that use some hot water, then give the water heater time to reheat before drawing on it again. It will not do the job of a 20 or 30 gallon water heater, it is only 4 gallons. There are instant water heaters out there, but this is not one of them, nor is it as expensive. I also installed mine on the countertop, and placed it on a rubbermaid dish strainer mat, so when I service the unit, or if it leaks - the water gets directed to the sink. Makes things so much easier, though it has never leaked. I like the styling of the unit, and love the on/off switch being easily accessible. I turn the unit off when I leave, and on when I come home. During the hot summer months I leave it off until I really need it. Over the years a bit of insulation may have came out of where a heavy power cord goes into the body of the heater - when I service it, I may have gotten this area bit too wet the last 2 times. I have had to leave the faceplate off a day or so for it to dry, otherwise it kicks the GFI outlet off nearby. I will contact Ariston to see if I need to put something back in to seal this small gap again.
Date published: 2010-01-20
Rated 2 out of 5 by from Does not last long unless you have soft water We purchased this point-of-use water heater because it used to take a very long time to get hot water in the kitchen sink. It was a very nice solution and we were very happy with it. However, the tank started to leak after less than 2 years. We called the company and they explained that with hard water (which is pretty much the case in the whole country!), they recommend changing the anode every year to prevent degradation of the tank. Well that was easier said than done! They sent us a replacement tank since it was under warranty, but process of changing the anode every year is costly and difficult. Anyway, we got rid of the whole thing, but it good while it lasted.
Date published: 2010-11-24
Rated 5 out of 5 by from Emergency hot water heater My whole house electric on demand hot water heater burnt out. Went to Home Depot to look for a new heater or a hold over. Found the artisan 4s. I took a chance because I needed hot water immediately. was a simple hook-up. Used Shark bite and Pex pipe (also great products). I wasn't sure how long the 4 gallons would last taking a shower so I experimented. Regular shower head - water ran until hot -jumped in and got wet - shut off water - shampooed and washed - turned on water to rinse - turned off and used conditioner - turned back on and rinsed - water just started to get cold. Installed a water saver shower head - ran water the entire time I washed and rinsed and still had hot water to spare. My kids hate it but, it gets them out of the shower faster which means a savings on water and electric. one half hour or more showers are common at my house. I would like to keep it installed just for that reason. As long as you have a 120 20 amp receptacle, your in business.
Date published: 2014-11-19
Rated 5 out of 5 by from Ariston 4GL installed Ariston 4GL for my shower in my motorhome. works great, either with 3KW generator or outside power. very satisfied with it, easy to install.
Date published: 2007-04-14
Rated 2 out of 5 by from Worked but not reliable Had this unit 3 years and it is installed inline with our big waterheater to provide quicker hot water to kitchen sink and dishwater which it does just fine. Problems: 1. Unit developed leak within 6 months and HomeDepot replaced it. 2. Unit thermostate went band at 2 years and replaced. 3. After 2 1/2 years the tank started leaking on the replacement unit. If you install this make sure you have some kind of water alert system or it may flood under your sink like ours did twice. Also, you have to have copper pipe aoing outside or under house for pressure relief value compliance. Will not buy again due to reliability concerns.
Date published: 2010-11-14
Rated 4 out of 5 by from Perfect for us. Installed this unit on jan. 2012. Exising waterheater is 65 feet away from the kitchen sink and hotwater took 2 minutes to reached 110 degrees MAX on a 60 degree day. Piggybacked off the hot side under the sink, waterproofed with flooring under cabnet and set in small tub attached to wall. Now I have HOT water in 5 seconds. It can work with my Adora dishwasher on the same circuit
Date published: 2012-06-01
Rated 5 out of 5 by from great water heater - 1 more comment This water heater is one of the few I have seen that can connect with the HOT water for your building connecting to the COLD inlet side of the water heater - in my condo, hot water has never made it to the kitchen sink for the past 20 years - now I can have the Ariston water heater boost the incoming hot water to an acceptable temperature. Most water heaters can only have cold water hooked up to them, not the incoming hot water for your building.
Date published: 2010-01-20
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