"Your products specify the 'temp. rise' based on the GPM flow; what do you mean by this?"
Temperature rise is the amount the heater raises the temperature of the incoming water, based on the flow rate shown of that water.

"Does the kW listed under each model represent the amount of energy they use if all the heating elements are on?"
Yes, the specification for kilowatt usage for all models show the maximum wattage with all heating elements on.

"I am looking for an electric tankless water heater having less than 15 amps 120volt. Do you offer any?"
Unfortunately low amperage/wattage doesn't produce much "instant" heat (no matter what). The elements that we offer are almost 100% efficient (meaning that almost all of the heat that an electric element produces is already transferred into the water). You simply can't buy any brand (anywhere) of tankless water heater that uses less than 15 amps at 110volts that will give you much of a heat rise. We wish it possible as we would be able to sell many more electric tankless water heaters. If you only have 110-120 volts you might wish to consider using a small water heater instead of a tankless heater. Just click here to see those.

"When it says "turns on with at least .5 or .7 GPM" how do I know which water heaters turn on at .5GPM or.7GPM?"
The water heaters that have a temperature listed under the .5GPM flow column are the water heaters that will turn on with only .5GPM. If there is no temperature listed in the .5GPM column, then the water heater starts when there is .7GPM flow.

"Why does it say the water heater can have 3/8" or 1/2" pipe compression fittings?"
The water heater comes with an adapter so the pipe compression fittings can be used as 3/8" or 1/2" pipe.

"Why does it say the water heater can have a top or rear entry electric?"
There are holes made in the top and the rear so the customer can set up the tankless water heater as a top entry or a rear entry electric. The choice is left up to the customer when they install the water heater.

"Why is there a 'no return' policy on three phase units?"
Special 3-phase heaters are models made-to-order. Therefore, these special three phase (most residences are not wired for three phase configurations) are non returnable. If you order a 3-phase unit we will ask you to sign an acknowledgement form. The manufacturer requires that this form be completed before shipping any 'Three Phase' water heater.

"Can I install these tankless water heaters in my attic?"
Without seeing all of your plumbing piping, etc. it is difficult for us to answer with a straight "yes" or "no." One must be sure that a possible water siphoning condition can not be created as these fantastic electric tankless water heaters can not have air in the lines. Water siphoning out of any brand of electric tankless water heater might damage the heater or element when the element is on and there is no water (or not enough water) in the lines. Air should not be touching the elements.

"Will an instantaneous water heater save me money on my utility bills?"
Yes, 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.

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

"Will the Hot Water Heater Scale Inhibitor System change the taste or odor of water?"
No. The active ingredient is colorless, tasteless, and odorless when used as recommended.

"How does the Hot Water Heater Scale Inhibitor System prevent corrosion?"
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.

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

"Is the Hot Water Heater Scale Inhibitor System's active ingredient safe?"
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.

"What is siliphos?"
Siliphos is a water treatment compound; a glass-like Polyphosphate containing Sodium, Calcium Magnesium and Silicate, formulated specifically for the treatment of water problems and to prevent the build-up of scale in plumbing.

"What is CA AB 1953 and VT S.152 and how is this different from previous low-lead legislation?"
The United States Environmental Protection Agency (EPA) regulates the amount of lead in drinking water under guidelines established in the Federal Safe Drinking Water Act (passed in 1974; amended in 1988 and 1996). This Act defines "lead-free" as not more than 8% lead in pipes and fixture fittings. PLEASE NOTE: Use of the term "lead-free" varies between the new legislation in CA (AB 1953) and VT (S.152), and in the current Federal Safe Drinking Water Act requirements. In the new legislation for CA and VT only, starting in 2010, it will mean 0.25% or less (weighted average).