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Ariston/Bosch 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 whole gallon at a time - which is great for making a cup of tea, or starting dinner without having to wait for the water to boil. Let® be your source for these and many Ariston parts.

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

Bosch water heaters
  • 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

Flex connector for faucets or water heaters
  • Constructed of stainless steel for durability - will not corrode or rust
  • Flows approximately 100% more than braided type
  • Maintains optimum flow - no restrictions
  • Designed for use with tankless water heaters, faucets, hot on demand systems and water filtration installations
  • Kink & crimp resistant
  • Chrome plated brass nuts for durability
  • Very flexible for ease of use
  • Working pressure: 200 PSI
  • Burst pressure approx: 1800 PSI
  • Temperature rating: 40 - 250°F
  • UPC and ASME A112.18.6 compliant
  • IAPMO listed

Flex Connector Size 12" Length 16" Length 20" Length 30" Length
1/2" FIP x 1/2" FIP $4.32 $4.94 $5.81 $7.55

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

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Fips x Fips Corrugated Stainless Water Heater Flexes

SS Flex
  • Great for water heaters, water softeners and more
  • UPC and ASME A112.18.6 compliant
  • IAPMO listed
  • Stainless steel water ways inside
  • Purchase 10 or more (of the same size) for additional savings

Flex Connector Size Length Price & Quantity
3/4" x 3/4" - .70id 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

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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
  • 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


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

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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. "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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