Question 1

How many amps are needed for rheem rtex - 13 240v heating tankless electric water heater

Accepted Answer

Hello-The RTEX-13 requires 1x 60A@240V breaker / 6 AWG recommended wire size.Specs - http://cdn.globalimageserver.com/fetchdocument-rh.aspx?name=Specification-Sheet&id=fc3235b7-7cd0-42cd-93bc-7169ea92be31 Rheem 800-432-8373I hope this helped :)Ben

Question 2

Do these tankless water heaters require an overflow line to the outside of the home or a pan like is required on normal water heaters ?

Accepted Answer

No tank, so, no overflow line required. It mounts on the wall. A pan is needed if required by building code in your city.

Question 3

We have a 500sq' apt. 1 kitchen sink, 1 lav sink and tub/shower. This tankless heats water to both sinks but nothing to the tub/sh. Help

Accepted Answer

Sinks have aerators to slow down the water where a tub doesn't. It sounds like one possibility is that your exceeding the GPM for this heater. Next possibility, double check an measure your actually getting at least 240v at the heater, I had an issue where my unit was only getting 235v an it was causing a similar issue where only one of the two heating elements was activating. I had it set to 125F but it was coming out 100F. It was warm and without a meter I would of thought it was working correctly until I tried filling a tub. It couldn't even get the water warm. 
I pulled my wires out an restripped an cut an screwed them in an it fixed my problem, now its measuring around 245v. Make sure there is no copper showing after screwing down your input wires.

Now filling the tub I noticed after about 10-15 seconds the water gets too hot to touch. I set it to 135F.

Question 4

El titan n270 me puede alimentar 3 baños y agua caliente en toda la casa.

Accepted Answer

Solo tengo un baño y me sirve muy bien el calentador. Mi casa es pequeña. I'm sorry.

ASIN	B01NAUZJPE
Best Sellers Rank	#51,940 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #45 in Water Heaters
Brand Name	Rheem
Capacity	1.5 Gallons
Color	Gray
Customer Reviews	4.4 4.4 out of 5 stars (1,397)
Efficiency	at least 99.8% energy efficient
Flow Rate	4.8 Gallons Per Minute
Global Trade Identification Number	00020352685328
Heat Output	13 Kilowatts
Included Components	Rheem RTEX-13 Residential Tankless Water Heater
Is Electric	Yes
Item Depth	0.5 inches
Item Dimensions W x H	8.25"W x 12.62"H
Item Type Name	Rheem RTEX-13 Residential Tankless Water Heater
Item Weight	1.8 Kilograms
Manufacturer	Rheem
Manufacturer Part Number	RTEX-13
Material Type	Copper
Maximum Temperature	140 Degrees Fahrenheit
Model Number	RTEX-13
Mount Type	Wall
Power Source	Electric
Special Features	LED Display
Style Name	Heater
UPC	020352685328
Unit Count	1.0 Count
Voltage	240 Volts
Wattage	13 KW

Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater, GRAY

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