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Stiebel Eltron Tankless Electric Water Heaters

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Customers who have purchased electric tankless water heaters have also been:
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PlumbingSupply.com is pleased to introduce the addition of the Stiebel Eltron line of electric tankless water heaters. Tankless water heating is here to stay, and we are your source for tankless water heaters and thousands of other plumbing-related products.

DHC Tankless Electric Water Heaters
tankless electric water heaters # DHC models These tankless electric water heaters feature:
  • Designed for installation at the point of use
  • Equipped with a safety high-limit with manual reset
  • Up to 50% less power consumption compared to storage type heaters
  • Instantly have hot water
  • Exclusive built in scald guard thermostat
  • Lower installation costs compared to tank type units
  • Available in many different kW sizes
  • Flow controls and faucet aerators are highly recommended in conjunction with tankless water heaters
  • Ideal for restrooms or kitchenettes in an office or commercial/industrial setting: office buildings, gas stations, stores, schools, malls, hotels/motels, warehouses, restaurants, manufacturing facilities
  • In a residential setting, they are suited for the following applications: bathroom sinks, kitchen sinks, laundry areas, small cabins, boats/RVs
  • View specifications

Model # Description Price & Quantity
DHC 3-1 3.0 kW, 120V, with 0.5 gpm flow control aerator $164.98
DHC 4-3 4.5 kW, 277V, with 1.0 gpm flow control aerator $169.99

Tankless Electric Water Heaters - 208/240V
Model # Description Price & Quantity
DHC 3-2 2.5 kW, 208V or 3.3kW, 240V with 0.5 gpm flow control aerator $168.95
DHC 4-2 2.9 kW, 208V or 3.8kW, 240V with 0.5 gpm flow control aerator $169.95
DHC 5-2 3.6 kW, 208V or 4.8kW, 240V with 1.0 gpm flow control aerator $169.95
DHC 6-2 4.5 kW, 208V or 6.0kW, 240V with 1.0 gpm flow control aerator $169.95
DHC 8-2 5.4 kW, 208V or 7.2kW, 240V with 1.0 gpm flow control aerator $169.95
DHC 10-2 7.2 kW, 208V or 9.6kW, 240V with no flow control aerator $168.78

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DHC-E Tankless Electric Water Heaters
tankless electric water heaters # DHC-E models
These tankless electric water heaters feature:
  • Control Temperature Simply by Setting a Dial - Set the knob on the front cover and enjoy water temperatures between 86°F (30°C) and 125°F (52°C). Change the desired temperature at anytime. No purchase of a remote selector control is necessary. Advanced microprocessor technology ensures that the water temperature never deviates from the set point.
  • Best Warranty in the Industry - Three years manufacturer's parts warranty.
  • Code Compliance Made Easy - The water temperature required by codes can simply be dialed in at the unit. The 100% accuracy of the water temperature is guaranteed by sophisticated electronics. No need to worry about mixing valves that go out of adjustment and wear out.
  • No Scalding - The electronic control system in the DHC-E does not allow the water temperature to go above 125°F (52°C), which eliminates the possibility that scalding may occur. On the other hand, 125°F (52°C) water is sufficiently hot for most uses.
  • Simple Design of Plumbing System - There is no need for a T & P valve, drain or mixing valve. The design of the hot water plumbing system gets very simple and straight forward due to the advances introduced with the DHC-E.
  • Sleek design fits in anywhere - Due to its small dimensions and attractive housing the DHC-E can be left unconcealed in many applications.
  • Seismic-Proof Construction - DHC-E is a tankless water heater system, and is thereby not subject to seismic code. There is no need for preventative construction, as required when using a bulky water storage heating system.
  • Superior, Reliable Performance - The DHC-E has two temperature sensors and one flow sensor which feed their readings into the unit's proprietary microprocessor control. Three heating elements are engaged in stages, achieving the temperature you desire. The DHC-E continually monitors the water temperature it produces. DHC-E Tankless Electric Water Heaters deliver instant hot water.
  • Ideal for restrooms or kitchenettes in an office or commercial/industrial setting: office buildings, gas stations, stores, schools, malls, hotels/motels, warehouses, restaurants, manufacturing facilities
  • In a residential setting, they are suited for the following applications: bathroom sinks, kitchen sinks, laundry areas, small cabins, boats/RVs
  • View Specifications

Tankless Electric Water Heaters - 208/240V
Model # Description Price & Quantity
DHC-E 8 5.4 kW, 208V or 7.2V, 240V with digital temperature control $289.95
DHC-E 10 7.2 kW, 208V or 9.6V, 240V with digital temperature control $289.95

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Hot Water Heater Scale Inhibitor System
hot water heater scale inhibitor system
This water heater scale inhibitor system features:
  • 3/4" NPT
  • 6 GPM
  • Cold water feed line
  • Inhibits scale build-up caused by hard water
  • Helps protect piping from corrosion
  • Maintains efficiency and extends life of system
  • Translucent dispenser cartridge allows for convenient detection of remaining scale stopper level
  • Slow dissolve rate for long life and consistent dosing
  • Multi-application design effective on all types of hot water systems-boilers, tankless, and tank-type (gas or electric)
  • Made from FDA CFR-21 compliant materials, suitable for drinking and cooking water and all food applications
  • Replacement cartridges (AP431) are available for these in-line scale inhibitor systems
Description Price & Quantity
Hot Water Heater Scale Inhibitor System $66.10
Replacement filter for hot water heater scale inhibitor system $27.31
Note: Recommended time to change/replace filter cartridge is 6 months.
Purchase a replacement cartridge to have on hand when needed.

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DHC Technical Data

DHC inside

MODEL DHC 3-1 DHC 3-2 DHC 4-2 DHC 4-3 DHC 5-2 DHC 6-2 DHC 8-2 DHC 10-2
Phase 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Voltage (V) 120 208 240 208 240 277 208 240 208 240 208 240 208 240
Wattage (kW) 3.0 2.5 3.3 2.9 3.8 4.5 3.6 4.8 4.5 6.0 5.4 7.2 7.2 9.6
Amperage (A) 25 12 14 14 16 17 18 20 22 25 26 30 35 40
Min. required circuit breaker size (A) 30 15 20 20 20 20 30 30 30 30 30 40 40 50
Recommended wire size (AWG COPPER) 10 14 12 12 12 12 10 10 10 10 10 8 8 8
Min. water flow to activate unit (gpm/Lpm) 0.32/1.2 0.32/1.2 0.42/1.6 0.42/1.6 0.42/1.6 0.47/1.8 0.69/2.6 0.79/3.0
Weight (lbs/kg) 4.6/2.1 5.3/2.4 5.3/2.4 4.6/2.1 4.6/2.1 4.6/2.1 5.3/2.4 5.3/2.4
Dimensions - height x width x depth (inches) 14-3/16" x 7-7/8" x 4-1/8"
Nominal water volume (gal/L) 0.13/0.51
Working pressure (PSI/bar) 150/10
Tested to pressure (PSI/bar) 300/20
Water connections 1/2" NPT

Temperature Increase above Water Temperature:
Temperature Increase above Water Temperature

DHC-E Technical Data

DHC-E inside

MODEL DHC-E 8 DHC-E 10
Phase 1 1
Voltage (V) 208 240 208 240
Wattage (kW) 5.4 7.2 7.2 9.6
Amperage (A) 26 30 35 40
Min. required circuit breaker size (A) 30 40 40 50
Recommended wire size (AWG COPPER) 10 8 8 8
Max. temp. increase above ambient water temp. @ 0.75 gpm 49 65 65 87
@ 1.00 gpm 37 49 49 65
@ 1.50 gpm 25 33 33 44
Min. water flow to activate unit (gpm/Lpm) 0.45/1.7
Pressure loss in unit 1.46/0.1
Weight (lbs/kg) 5.9/2.7
Nominal water volume (gal/L) 0.13/0.51
Working pressure (PSI/bar) 150/10
Tested to pressure (PSI/bar) 300/20
Water connections 1/2" NPT

Temperature Increase Above Ambient Water Temperature [F°]
Type kW GPM
    0.32 0.42 0.5 0.69 0.75 0.79 1.0 1.5 2.0
DHC-E 8-2 @ 208V 5.4 - - - 54 41 39 31 20 15
DHC-E 8-2 @ 240V 7.2 - - - 71 65 62 49 33 25
DHC-E 10-2 @ 208V 7.2 - - - - - 62 49 33 25
DHC-E 10-2 @ 240V 9.6 - - - - - 82 65 44 33

Note: Prior to ordering, please check/confirm the temperature rise limits of all brands of instant tankless water heaters to make certain that they will meet your needs. We guarantee that they will heat as the manufacturer states in the specifications, but instant heaters are not for every water-heating application and will only offer the heat rise stated for each model.

frequently asked questions about tankless water heaters

question about hot water heater scale inhibitor system"How does the Hot Water Heater Scale Inhibitor System prevent corrosion?"
system extends life It forms a thin protective layer on the inside of pipes and metal parts. This film or layer is microscopic in thickness and will not build up over time.

question about hot water heater scale inhibitor system"Will the Hot Water Heater Scale Inhibitor System change the taste or odor of water?"
system extends life No. The active ingredient is colorless, tasteless, and odorless when used as recommended.

instant water heaters"Will an instantaneous water heater save me money on my utility bills?"
instant water heatersYes, in most applications you will see a savings. There are some variables that could reduce the amount you save. One example is you will not run out of hot water, so longer showers could cut into your savings. Also, the cost of electricity, propane and natural gas in your area will affect the amount of money saved. The higher the cost for the energy type used to heat your water, the quicker you will recover the higher initial cost of installing a tankless versus tank style water heater.

Positives:

    You will never run out of hot water. "You want an hour long shower? No problem!"
    Electric units can be installed at the point of use.
    You're not paying energy costs to heat water 24 hours a day.
    They're easy to install.
    Our electric units don't require a T&P valve. (No tank!)
    Installing a tankless water heater will indeed be a bonus to the environment (why should we choose wastefulness when we're talking about finite natural resources)?

Negatives:

    They all need a minimum flow rate & pressure to turn on.
    The faster water flows through them, the lower the temperature rise. So,if you expect to take a shower while the clothes washer is running, you will need to select a unit sized to your hot water flow requirements. (Gas units handle this a little better than electric models)
    Electric units need heavy gauge wire. Example: the 9.5kw must have 8ga wire and a 50amp breaker.
    Gas units need a much larger, special flue pipe and larger gas supply than a conventional water heater.
    At times they can produce very hot water. It's easier to get scalded.
    Gas units are more complicated than a conventional water heater.
    With some brands, parts are hard to find (not a negative if you originally purchase from us, as we like to carry parts for the units that we sell).

Summary:
Tankless water heaters have their place. They're not "the answer" to every hot water need, but if they're used correctly they can be the solution to many of them.

question about hot water heater scale inhibitor system"Is the Hot Water Heater Scale Inhibitor System's active ingredient safe?"
system extends life Yes! All ingredients used are 100% pure food grade materials. They are approved by the USDA and meet purity requirements as a food additive by the World Health Organization.

question about hot water heater scale inhibitor system"What are the best reasons to install a Scale Inhibitor System?"
system extends life The system inhibits scale build-up and protects the piping from corrosion, which helps maintain efficiency and extends the life of the system.

question about hot water heater scale inhibitor system"What happens if you don't change cartridges often enough on the Scale Inhibitor System?"
system extends life The original water condition and problem will reappear. Hardness will begin to build up again, which you want to avoid.

We hope that we have helped you on this page with tankless electric water heaters,
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