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Ariston GL4S Electric Mini-Tank Water Heater

4.4 out of 5 stars 295 customer reviews
| 66 answered questions

Price: $212.46 & FREE Shipping
Only 4 left in stock - order soon.
Ships from and sold by GlobalTowne.
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  • Mounting of 1 new customer-supplied heater
  • Attaching water pipes and any needed gas lines
  • System test and clean up
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Estimate: $654.69
87% positive ratings (45 reviews)
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  • Point-of-use 4-gallon mini-tank water heater
  • Provides instant hot water for your sink's faucet
  • No hard wiring needed, simply plug into an outlet; installs independently or with a larger water-heating source
  • 120 volts, 1500 watts
  • Measures 14-by-14-by-12-1/4 inches; weighs 17 pounds; 1-year limited parts warranty, 6-year limited heat exchanger warranty
4 new from $197.00 1 used from $175.00 1 refurbished from $155.00

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$212.46 & FREE Shipping Only 4 left in stock - order soon. Ships from and sold by GlobalTowne.

Frequently bought together

  • Ariston GL4S Electric Mini-Tank Water Heater
  • +
  • SHURFLO (255-213) 1/2" Twist-On Pipe Strainer
  • +
  • SHURflo 4008-101-E65 3.0 Revolution Water Pump
Total price: $301.75
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Compare to similar items

This item Ariston GL4S Electric Mini-Tank Water Heater
Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart
Customer Rating 4 out of 5 stars (295) 4 out of 5 stars (284) 4 out of 5 stars (14) 3 out of 5 stars (106) 4 out of 5 stars (236) 4 out of 5 stars (106)
Price $212.46 $205.24 $180.15 $169.00 $211.55 $221.09
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping $20.50
Sold By GlobalTowne Amazon.com Amazon.com Amazon.com Amazon.com Grady's Online
Item Dimensions 14 x 12.25 x 14 in 13.5 x 13.75 x 13.75 in 14.5 x 14.5 x 12.9 in 12.8 x 5 x 8 in 14 x 10.5 x 14 in 17.5 x 14.5 x 17.5 in

Product description

Product description

Bosch Ariston GL4S (Ariston GL4) Electric Mini-Tank Water Heater - Installing an Ariston electric mini-tank water heater under the sink puts hot water right where you need it -- at the point of use. Easy installation. Simply tap into the cold water line and install the water heater directly at the sink. Plugs directly into a standard 120 volt outlet. And when you want to eliminate the wait for hot water but need more volume, install the Ariston water heater in-line with a larger hot water source. The Bosch Ariston GL4S (Ariston GL4) keeps 4 gallons of hot water ready to go and draws only 12.5AMPS. A Pressure relief valve is included. The Bosch Ariston GL4S is a replacement for the Ariston GL4, but please note that the GL4S is 13.5" deep while the Ariston GL4 was only 12.25" deep.

The new Ariston GL4S has many new improvements over the older Ariston GL4. The Ariston GL4 has a new temperature adjustment knob on the front of the unit to raise and lower the temperature from 65 Deg F to 145 Deg F while on the older Ariston GL4 you would have had to remove the blue oval cover to access the temperature control knob.

The Ariston GL4S also has a new improved thermostat that features a new sensing probe that is attached to the thermostat and inserts into the cavity of the new element so the heater can adjust temperatures quicker and maintain a more consistent heat.


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.

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