Bosch GL4 Ariston 4-Gallon Point-of-Use Indoor Electric Mini-Tank Water Heater

by Bosch

Product Description

Amazon.com Product Description

The Ariston 4-gallon point-of-use electric mini-tank water heater eliminates the wait time for hot water to come from the sink faucet. You can install the heater independently or in-line with a larger water-heating source. You need no hard wiring to power your unit; simply plug it into any standard outlet and this heater's ready to go. The glass-lined tank ensures long life, and the superior insulation provides quick recovery and greater energy efficiency. This 120-volt, 1500-watt water heater weighs 17 pounds and measures 14-by-14 by-12-1/4 inches. Ariston backs its heater with a manufacturer's 6-year limited warranty for the heat exchanger and a 1-year limited warranty for parts.

From the Manufacturer

Installing an Ariston electric mini-tank water heater under the sink puts hot water right where you need it at the point-of-use. Lightweight and compact this heater is available in three space-saving sizes: 2.5, 4, and 6+ gallons. These heaters are aesthetic on the outside, glass-lined on the inside, and offer superior insulation for higher efficiency.

Product Details

Choose the Right Water Heater. [1.16mb PDF]

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Product Manual [157kb PDF]

• Product Dimensions: 12.2 x 14 x 14 inches
• Shipping Weight: 24 pounds (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
• ASIN: B0006GVO1C
• Item model number: GL4
• Average Customer Review: 4.0 out of 5 stars  See all reviews (65 customer reviews)
• Amazon Best Sellers Rank: #2,381 in Home Improvement (See Top 100 in Home Improvement)
  • #5 in Home Improvement > Rough Plumbing > Water Heaters & Parts > Water Heaters

Customer Reviews

Most Helpful Customer Reviews

69 of 69 people found the following review helpful:

5.0 out of 5 stars Wow! Instant hot water. What a concept!, August 27, 2006

By 

D. Kamp (Eastern Maine) - See all my reviews
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This review is from: Bosch GL4 Ariston 4-Gallon Point-of-Use Indoor Electric Mini-Tank Water Heater (Tools & Home Improvement)

If your living in a place like mine where your hot water heater is a long way from the kitchen sink, then you are probably going crazy like I was waiting and waiting for the hot water to finally get to the faucet. There are technical ways to remedy this, but they involve a lot of plumbing, auxiliary pumps, and ripping half your house apart. Since I rent, I was thinking that the landlord wouldn't take to kindly to this idea. So I started casting about for a better solution.

That's when I came up with the idea of putting a little water heater as close to the kitchen faucet as possible. With this, the hot water is right there where you need it. No waiting and wasting a lot of water while running the faucet so that a half mile of plumbing warms up.

'Only problem is a tiny tank has very limited capacity. If you're only washing a dish or two like me, then no problem. But if you wash a sink full of dishes, it will quickly run out.

But the trick is to hook this little heater right in line with the hot water supplied from the big tank. As you draw hot water, cold water will go into the small heater, but only for a gallon or two. Then as you continue to draw hot water, the small heater now has hot water being supplied to it, so the hot water just keeps on coming.

I checked around with local suppliers and found small hot water heaters, but most were kinda short and stubby and wouldn't fit under the sink well at all. But I stumbled upon this neat deal from Ariston. It's a nice clean design, well insulated, and fits under the sink extremely well. I also felt that the price was very reasonable considering how nice it is. The funny thing is, it seems to be specifically designed for exactly the idea I had in mind. It was a snap to install.

So you may be thinking: Yeah. This all looks good in theory, but does it really work? I have to admit I was skeptical at first, but I have to tell you that this is one of those rare times when an idea I have actually works better than imagined. I've done small loads and big. The hot water is right there (immediately!) when you need it. And for all practical purposes it appears to be an infinite supply. I've had it in now for about 3 weeks and marvel each time I go to wash out a dish or two. Incredible! Don.

47 of 47 people found the following review helpful:

4.0 out of 5 stars Fast hot water, inexpensive to run, May 20, 2008

By 

D. Matheny (Austin, TX) - See all my reviews
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Amazon Verified Purchase

This review is from: Bosch GL4 Ariston 4-Gallon Point-of-Use Indoor Electric Mini-Tank Water Heater (Tools & Home Improvement)

This mini-tank water heater works very well and we love not having to wait for hot water at the kitchen sink. The form-factor is also very convenient for mounting under the kitchen sink, unlike some other small point-of-use water heaters.

I have this hooked up inline with a gas tankless water heater and I wanted to know how much this new heater was costing me in electricity, so I hooked up a meter to check it out for a few weeks. It turns out that, with our normal usage, it uses just about 5 KWH/week - which works out to about $2/month in our area.

Before this heater, we had to run a full 2 gallons of water down the drain before getting hot water to the sink - which was both a big pain and somewhat wasteful. With this 4 gallon heater, we basically have an instant and endless supply of hot water at the sink since the hot water from the main tankless unit arrives before the water cools too noticeably. I've also noticed that it seems to heat water on it's own very quickly.

The biggest problem with this water heater is how much of a pain it is to set the thermostat. You basically have to remove 3 panels and then turn a dial that isn't labeled at all. In order to get it set to the same temperature as my main water heater, I ended up using an instant-read thermometer and moving the thermostat dial as I filled the tank with cold water and let it reheat it to the set temp. The process took a while, but I shouldn't have to do that again.

Overall, I'm very pleased with the purchase and would recommend this water heater.

Edit: It is now February, 2010 and this water heater has been installed for almost 2 years. It is still working perfectly and I haven't had to mess with it at all since the initial installation.

Edit #2: It is now November, 2011. Once again, this water heater continues to work perfectly and I still haven't had to mess with it since the initial install.

51 of 52 people found the following review helpful:

5.0 out of 5 stars Great Product, July 19, 2005

By 

S. Knudsen (Bella Vista, Arkansas) - See all my reviews
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This review is from: Bosch GL4 Ariston 4-Gallon Point-of-Use Indoor Electric Mini-Tank Water Heater (Tools & Home Improvement)

Ever since we moved into our new house my wife has complained about how long it took the hot water to get to the kitchen sink from the hot water heater in the garage. Since installing the Ariston GL 4, she has been ecstatic!! Hot water is instant. It is such a pleasure not to have her complain about our former water problem. Even when I am "forced" to do the dishes, I can't complain about our lack of hot H2O. Installation was easy except for the ill-fitting two top fittings. They will accept the hose extentions (hardware store), but you must be firm and patient. It took away alot of our storage space beneath the sink, but it was worth it.