Idiomas disponibles
Idiomas disponibles
SIZING GUIDE
Please use the chart below to see how many gallons per minute your tankless water heater can
produce with your incoming water temperature. The gallons per minute is calculated assuming
105°F outlet temperature.
37°
kW
Region A
12
1.2
18
1.8
27
2.7
FLOW REGULATOR – OPTIONAL
To ensure the optimal temperature output and overall performance of your tankless water heater
you may require a flow regulator. These flow regulators are installed on the outlet connection of
your tankless water heater and limit the maximum volume coming out of your unit to a specified
flow rate to prevent the exit temperature from becoming too cool. To learn more about flow
regulators or find out how to purchase one for your tankless water heater visit
parts.eemax.com, use the flow regulator part number from the table below.
INLET WATER TEMPERATURE
*Selection based on inlet temperature above and outlet temperature of 105°F
Steps for Choosing a Flow Regulator
1. Find your model in the chart on the right.
2. Choose the column with the inlet water
temperature closest to your geographical
location.
3. Take the letter matching your zone and model
number and match it with the corresponding
flow regulator on the right.
A
37°F
B
42°F
F
62°F
G
67°F
INLET WATER TEMPERATURE — F°
42°
47°
Region B
Region C
1.3
1.4
2.0
2.1
2.9
3.2
Gallons Per Minute To Achieve 105°F Outlet temp
A
B
C
D
E
F
G
H
I
C
47°F
D
52°F
E
57°F
H
72°F
I
77°F
52°
57°
Region D
Region E
1.5
1.7
2.3
2.6
3.5
3.8
12 kW
18 kW
27 kW
Average Ground Water Temperatures
A
37°F
F
62°F
*Source: US Environmental Protection Agency
3
62°
67°
Region F
Region G
Region H
1.9
2.2
2.9
3.2
4.3
4.9
A B C
D E
A
IFR 1-2
IFR 1-2
Silver
Dark Green
B
C
IFR 3-4
IFR 3-4
Purple
Purple
D
IFR 3-4
IFR 3-4
E
Purple
Light Green
F
G
of the United States
*
B
42°F
C
47°F
D
G
67°F
H
72°F
I
72°
77°
Region I
2.5
2.9
3.7
4.4
5.6
6.6
F G
H I
IFR 1-2
IFR 1-2
Purple
Purple
IFR 3-4
IFR 3-4
Purple
Red
IFR 3-4
IFR 3-4
Black
Black
H
I
52°F
E
57°F
77°F
