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Bosch / Ariston Water Heaters

With the cost of electricity steadily rising, Ariston's point-of-use water heaters are an excellent choice. By choosing one of these compact units, you can get 2.5 to 8 gallons of hot water when you need it - a half cup or a gallon or more at a time. Let PlumbingSupply.com® be your source for these and many Ariston parts.

Bosch Tronic 3000T Point-of-Use Electric Water Heaters

Bosch water heaters
Features:
  • Provides hot water quickly at point-of-use - ideal for sinks far away from the water heater, kitchenettes, half bathrooms, etc.
  • Compact, lightweight design can be floor mounted or wall mounted with included bracket
  • Can be used alone (tapped into cold water line) to provide a small volume of hot water or installed inline near the point of use with a larger hot water source to eliminate the wait for hot water
  • Glass-lined tank has a long service life and super fast 6.8 GPH recovery rate at 90°F rise
  • Pre-installed temperature/pressure relief valve and simple 120VAC plug-in connection (12 amps, single phase) for easy installation (ES8 features hardwired connection and includes relief valve)
  • 1/2" male NPT water fittings (3/4" male NPT on ES8)
  • 65 - 145°F temperature range with 98% thermal efficiency rating

Top view of valves
Front view of heater
Top of heater

Model Gallons Dimensions Weight Water Fittings Wire Type Price & Quantity
Tronic ES2.5 2.7 16 3/4" h x 14" w x 10-1/4" d 15.5 lbs 1/2" Male NPT Plug-In $215.36
Tronic ES4 3.85 16 3/4" h x 14" w x 12-1/4" d 17.3 lbs 1/2" Male NPT Plug-In $224.34
Tronic ES8 7.0 17-1/2" x 17-1/2" x 14-1/2" 29.5 lbs 3/4" Male NPT Hard Wired $289.63

Note: All three models have a max pressure of 150 psi and a heating capacity of 1440 watts

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HIGH FLOW Stainless Steel Water Flexes - 1/2"


Flex connector for faucets or water heaters
  • Designed for use with water heaters - fits 1/2" Bosch models
  • Constructed of stainless steel - will not corrode or rust
  • High flow, stainless steel construction
  • Corrugated design is extremely flexible for easy installation and helps prevent kinks
  • Washers included are high temperature, chloramine and chlorine resistant, EPDM
  • Maintains optimum flow - no restrictions
  • Chrome plated solid brass nuts for durability
  • Rated at 200 psi working pressure
  • Burst pressure approx: 1800 PSI
  • Temperature Rating: -40°F to +220°F
  • Full 1/2" ID 304 stainless steel tubing available in many lengths
  • 1/2" FIP x 1/2" FIP inlet/outlet
  • UPC and ASME A112.18.6 compliant
  • NSF 61 compliant
  • ICC-ES PMG listed
  • The manufacturer recommends a non-toxic silicone based lubricant, Dow 111 or similar, be used on washers for all installations
1/2" x 1/2"
Length Price & Quantity
12" $4.32
16" $4.94
20" $5.81
30" $7.55
36" $10.58
60" $14.78

Replacement washer for 1/2" Stainless Water Heater Flex = $0.89

Order 10, 25 or 50 of the same item for additional savings!
Volume pricing will appear in your shopping cart.

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Corrugated Stainless Water Heater Flexes - 3/4"


SS Flex
  • Designed for use with water heaters - fits 3/4" Bosch models
  • Better and more ideal than copper flexes for water heaters
  • Highest quality EPDM washers are resistant to heat and chloramine treated water
  • Best transition flex between steel and copper pipes
  • Stainless steel water ways inside
  • Can help to eliminate electrolysis between copper and galvanized piping
  • Full flow (.70id) operation provides flow rates over 100% more than braided flexes
  • 3/4" FIP x 3/4" FIP inlet/outlet
  • Rated at 200 psi working pressure
  • Temperature Rating: -40°F to +220°F
  • UPC and ASME A112.18.6 compliant
  • NSF 61 compliant
  • ICC-ES PMG listed
  • The manufacturer recommends a non-toxic silicone based lubricant, Dow 111 or similar, be used on washers for all installations
3/4" x 3/4"
Length Price & Quantity
12" $5.40
15" $5.72
18" $6.78
24" $7.53
36" $11.44
48" $13.58

Replacement washer for 3/4" Stainless Water Heater Flex = $0.96

Order 10, 25 or 50 of the same item for additional savings!
Volume pricing will appear in your shopping cart.

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to water heater flood stops - to 1", 1-1/4", and 1-1/2" water heater flexes


3/4" Fips x 3/4"PTC Corrugated Stainless Water Heater Flexes


Click here to enlarge image of 3/4 inch x push to connect stainless water heater flex
Features:
  • Easy installation
  • Eliminates the need for brass compression fitting or copper male adaptors
  • 304 series stainless steel maintains optimum flow
  • No restriction - true .72ID
  • 3/4" Female IPS x 3/4" John Guest push to connect fitting - fits on 3/4" copper
  • Kink and crimp resistant
  • Chrome plated brass nuts
  • Very flexible
  • Will not corrode or rust
  • No Dielectric union required
  • Highest quality EPDM washer
  • Resists work hardening
  • Working pressure 200 psi
  • Burst pressure 850 psi
  • Leak tested
  • Temperature rating 40 - 250 degrees F

3/4" Fips x 3/4"PTC Corrugated Stainless Steel Flexible Connector - 18" = $12.87

Order 10 or 25 of the same item for additional savings!
Pricing discounts will be shown in the shopping cart.

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Hex Bushings


Bushing

3/4" x 1/2" Stainless Steel Bushing = $3.40

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Silicone Lubricant


Silicone lubricant features:
  • Helps prevent o-ring leaks
  • Will not cause o-ring expansion
  • Usable on all brands of water treatment o-rings
  • Also great for most stems
  • FDA Approved
  • Resists chloramine and chlorine
  • Temperature range -40° to 400°F

Silicone Lubricant ¼ oz = $2.19
10 Each Silicone Lubricant ¼ oz = $15.50
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Related Items & Accessories



Frequently Asked Questions

Q. "Can any of the Ariston/Bosch models be used on the hot side of the plumbing? My hot water heater takes a minute or two to reach several sinks, wasting time and water. I want to put a small tanked water heater in-line on the hot side."
A. Yes, any of the Ariston/Bosch models can be used for that application.

Q. "Do these heaters come with power cords?"
A. The two smaller models (ES2.5 and ES4) come with 120VAC plug-in power cords. The larger GL8Ti model is hardwired directly into your wall.

Q. "Do these water heaters have drain valves?"
A. No. These units are small enough to disconnect and drain into a sink if desired.

Q. "I am looking for 120V water heater I can install under my kitchen sink. I need one that will provide about one sink-full of hot water on demand. It currently takes about 60-80 seconds to get hot water to the sink. Will your undercounter water heaters work for me?"
A. The 2.5 gallon "should" work for your situation. It holds 2 1/2 gallons and when mixed with cold water provides you over 4 gallons of mixed warm water which is typically enough for most residential sinks. You can also connect your hot water line to the "cold" inlet of this heater, which allows you to have hot water for longer use when needed.

Q. "The Ariston/Bosch products specify the recovery rate - 'temp. rise' based on the GPH; what do you mean by this?"
A. The recovery rate is the amount of water that the heating source can raise the temperature 90 degrees in 1-hour. A 1500 watt element can raise 6.8 gallons of water 90°F in 1-hour; if you turned on a GL8Ti, 7-gallon water heater with 45°F water in it, it would take just over an hour to heat the water to 135°F.


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