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Simple, straightforward and low shipping rates for these tankless instant electric water heaters.
Q. "Why is the max flow lower for the staged turn on?"
A. The heating modules are set up differently to accommodate different flow rates.
Q. "What's the difference between the parallel turn on and the staged turn on?"
A. The parallel turn on will give you a higher maximum flow rate, and it needs a higher flow rate to turn on than the staged turn on. The staged turn on will turn on with a lower flow rate, and it handles a lower maximum flow rate than the parallel turn on.
Q. "How does the staged turn on work?"
A. Staged turn on models only use the heating modules needed to produce the desired output temperature.
Q. "Does the kW listed under each model represent the amount of energy they use if all the heating elements are on?"
A. Yes, the specification for kilowatt usage for all models show the maximum wattage with all heating elements on.
Q. "Are the single point, flow controlled and MARINE/RV water heaters field adjustable?"
A. No, only water heaters that say they are thermostatic allow you to adjust the temperature of the water heater.
Q. "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?"
A. 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.
Q. "Are all Eemax tankless water heaters designed to be hardwired?"
A. Yes, every tankless water heater by Eemax is supposed to be hardwired when it's installed.
Q. "Why does it say the water heater can have 3/8" or 1/2" pipe compression fittings?"
A. The water heater comes with an adapter so the pipe compression fittings can be used as 3/8" or 1/2" pipe.
Q. "Why does it say the water heater can have a top or rear entry electric?"
A. 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.
Q. "Why does it say the water heater can have a bottom or rear entry electric?"
A. There are holes made in the bottom and the rear so the customer can set up the tankless water heater as a bottom entry or a rear entry electric. The choice is left up to the customer when they install the water heater.
Q. "Your products specify the 'temp. rise' based on the GPM flow; what do you mean by this?"
A. Temperature rise is the amount the heater raises the temperature of the incoming water, based on the flow rate shown of that water. If you don't know what your incoming water temperature is, we offer a chart that shows average groundwater temperatures in the USA, or you can check with your local water district for the actual temperature in your area. Please note this can be adjusted by any sort of preheating (such as solar heaters).
Q. "How much do I need to raise my incoming ground water temperature for ____________"
A. This is a highly personal question as everyone's opinion is different. Combine that with the differences in incoming water temperatures and you have a different answer for each installation. However, a lot of studies have been done on what people (on average) find comfortable, so we can give you some very general numbers to help you narrow the possibilities. These studies have shown that most people are comfortable washing their hands at near body temperature and find showers comfortable at 90°F to 110°F, depending on whether they prefer cool or hot showers. Nearly everyone agrees that 57°F is too chilly for comfortable handwashing, much less showering.
Q. "Will an instantaneous water heater save me money on my utility bills?"
A. In many applications you can 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 can recover the higher initial cost of installing a tankless versus tank style water heater.
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.
Q. "I am looking for an electric tankless water heater having less than 15 amps 120volt. Do you offer any?"
A. 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.
Q. "Can I install these tankless water heaters in my attic?"
A. 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.
Q. "What does it mean to have ANSI Certification for lead free plumbing products?"
A. Laws requiring plumbing products that come in to contact with drinking water to be essentially lead-free (0.25% weighted average) have been passed in California, Louisiana, Maryland, and Vermont. In order for companies to ship these plumbing products to locations in CA, LA, MD and VT, they must be ANSI certified lead free.
Q. "What is CA AB 1953, LA Act No. 362, MD HB 372, and VT S.152 and how is this different from previous low-lead legislation?"
A. 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), LA ( Act No. 362), MD (HB 372), and VT (S.152), and in the current Federal Safe Drinking Water Act requirements. In the new legislation for CA, LA, MD and VT only (as of Jan 2013), it will mean 0.25% or less (weighted average). Similar national legislation is scheduled to go into effect Jan 2014.
Q. "Will the Water Heater Scale Inhibitor System change the taste or odor of water?"
A. No. The active ingredient is colorless, tasteless, and odorless when used as recommended.
Q. "Is the Water Heater Scale Inhibitor System's active ingredient safe?"
A. 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.
Q. "What is siliphos?"
A. 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. It is made from a blend of food grade organic phosphates, and has been approved by the USDA for drinking water and all food applications. It is safe for ingestion by humans, animals, and plants, and does not build up in waste water.
Q. "What are the best reasons to install a Scale Inhibitor System?"
A. The system inhibits scale build-up and protects the piping from corrosion, which helps maintain efficiency and extends the life of the system.
Q. "Can I install this scale inhibitor upside down?"
A. This scale inhibitor can be installed in any direction with the filter pointing in any direction as long as the water flow direction is correct and the system has suitable pressure to function properly. Please note, the manufacturer recommends that the filter be supported if the Venturi tee is not installed horizontally with the filter outlet pointing downward. Also, if the Venturi tee is not installed horizontally with the filter outlet pointing downward, it may be more difficult to catch the remaining water in the line when replacing the cartridge. As always, please consult with a trusted local professional if you are at all unsure about correctly installing this scale inhibitor.
Q. "How does the Water Heater Scale Inhibitor System prevent corrosion?"
A. 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.
Q. "What happens if you don't change cartridges often enough on the Scale Inhibitor System?"
A. The original water condition and problem will reappear. Hardness will begin to build up again, which you want to avoid.
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