
TEMPERATURE MAP
CHOOSE YOUR MAREY TANKLESS WATER HEATER
BASED ON YOUR CLIMATE
To find the best model for you and identify the unit’s capacity match your
location on the map with the table on the right.
ELECTRIC UNITS GAS UNITS
PRODUCT GPM POINTS OF USE
GA10 FNG/FLP
GA14 NG/LP
GA20 NG/LP
GA24 NG/LP
GA5 FNG/FLP
GA10 FNG/FLP
GA14 NG/LP
GA20 NG/LP
GA24 NG/LP
GA5 FNG/FLP
GA10 FNG/FLP
GA14 NG/LP
GA20 NG/LP
GA24 NG/LP
GA5 FNG/FLP
GA10 FNG/FLP
GA14 NG/LP
GA20 NG/LP
GA24 NG/LP
3.4
4.6
6.87
8.34
1.4
2.6
3.6
5.7
7.1
1.2
2.1
2.9
4.5
5.9
1.0
1.8
2.5
3.8
5.5
4.0
1.6
2.5
3.0
1.5
1.5
1.7
2.5
1.0
1.25
1.5
2.0
PRODUCTGPMPOINTS OF USE
ECO180
ECO110
ECO150
ECO180
PP220
ECO110
ECO150
ECO180
PP220
ECO110
ECO150
ECO180
INLET ºF
35ºF
45ºF
55ºF
65ºF
TYPICAL GPM REQUIREMENTS FOR VARIOUS FIXTURES
Hand Washing Sink
Washing Machine
Residential Dishwasher
Residential Kitchen Sink
0.5 - 1.0 GPM
1.0 - 1.5 GPM
1.0 - 2.0 GPM
1.5 - 2.0 GPM
Shower
Utility Faucet
Bathtub
1.5 - 2.0 GPM
1.5 - 2.0 GPM
4.0 - 5.0 GPM
HAND SINK FAUCET WORKING ON 1.0 GPMSHOWER WORKING ON 1.5 GPM
RESULTS BASED ON AN OUTLET TEMPERATURE OF 105ºF
PROPER SIZING EXAMPLE
Bathroom Lavatory Sink
Standar Shower
1.0 GPM
2.0 GPM
TOTAL GPM DEMAND
Running at the same time 3.0 GPM
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