Questions and Answers for MAREY 11 kW 3.0 GPM ETL Certified 220-Volt Self-Modulating Residential Point of Use Tankless Electric Water Heater

A:  Sizing a unit is mostly based on how many points of use you want to be able to use at the same time and what your incoming water temperature is. With all of our units to get a higher temperature increase, you have to reduce the flow. How much you reduce the flow is what will dictate how many points of use the unit can support at the same time.

A:  I have 240 volt supply.

A:  This unit does require a dedicated 70 amp double pole breaker.

A:  This requires 70 amps.

A:  Only if the Home Depot.com checkout process gives you an option to select expedited shipping.

A:  installed it and it works great will never use a tank type water heater again

A:  No. The incoming water temperature going into the unit cannot exceed 90 degrees.

A:  No, this product is not compatible as a booster.

A:  Because of how far north you are I would not recommend this unit. To get the water hot enough for the washing machine you would have to reduce the flow down to 1.0-1.5 gallons per minute. That would make filling the washer take a lot longer. It would use less electricity because it is only using power when in operation.

A:  Our electric units are usually not very compatible with campers. The ones that will get the water hot enough to use usually require too much electricity. The ones that don't require too much electricity usually are not powerful enough to heat the water unless it is already very warm coming in, at least 75 degrees.

A:  You would have to check with Home Depot what their return policy is, I believe it is 90 days. These units come with a 5 year warranty. Warranty Policy 1st 30 days- Free parts, replacement, shipping, and labor (at our repair center) 1st year- Free parts, free labor (at our repair center), (shipping not covered) 2nd year-5th year- free parts (shipping not covered)

A:  No you need 40 amp minimum

A:  No. This unit requires a 50 amp double pole breaker at 6 AWG wire.

A:  With all of our units to get a higher temperature increase you have to reduce the flow. The unit does have a maximum flow rate of 3.0 GPM, but at that maximum flow you will only get about a 25F degree increase. The maximum amount of temperature increase will occur at the lowest flow. At 1 GPM you will get a temperature increase of about 70 degrees.

A:  Copper is what we recommend. Consult an electrician to see if there would be any problem with running aluminum for that long of a run.