|
APPLICATION
|
FLOW Rate in GPM at 60 psi
|
| Typical Shower |
1.5 to 2.00 GPM (Max 2.5 GPM) |
| Typical Bath Tub Faucet |
2.0 to 3.0 GPM |
| Bathroom Vanity Sink Faucet |
0.5 to 1.5 GPM |
| Kitchen Sink Faucet |
1.0 to 2.2 GPM |
| Clothes Washer |
1.5 to 3.0 GPM |
Choosing an appropriate model of electric tankless water heater for your home or business depends on 3 primary factors:
-
your incoming water temperature
-
maximum flow rate desired
-
the electrical service of your home
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Incoming Water Temperature
| |
40F
|
45F
|
50F
|
55F
|
60F
|
65F
|
70F
|
75F
|
80F
|
| MODEL AH 27 |
2.8 GPM
|
3.1 GPM
|
3.3 GPM
|
3.7 GPM
|
4.1 GPM
|
4.6 GPM
|
5.2 GPM
|
6.1 GPM
|
7.3 GPM
|
| MODEL AH 24 |
2.5 GPM
|
2.7 GPM
|
3.0 GPM
|
3.3 GPM |
3.6 GPM |
4.1 GPM |
4.7 GPM |
5.4 GPM |
6.5 GPM |
| MODEL AH 21 |
2.3 GPM
|
2.5 GPM
|
2.7 GPM
|
3.0 GPM |
3.3 GPM |
3.8GPM |
4.3 GPM |
5.0 GPM |
6.0 GPM |
| MODEL AH 18 |
1.9 GPM
|
2.0 GPM
|
2.2 GPM
|
2.4 GPM |
2.7 GPM |
3.1 GPM |
3.5 GPM |
4.1 GPM |
4.9 GPM |
| MODEL AH 16 |
1.7 GPM
|
1.8 GPM
|
2.0 GPM
|
2.2 GPM |
2.4 GPM |
2.7 GPM |
3.1 GPM |
3.6 GPM |
4.4 GPM |
| MODEL AH 14 |
1.5 GPM
|
1.6 GPM
|
1.7 GPM
|
1.9 GPM |
2.1 GPM |
2.4 GPM |
2.7 GPM |
3.2 GPM |
3.8 GPM |
| MODEL AH 10 |
1.2 GPM
|
1.3 GPM
|
1.4 GPM
|
1.5 GPM |
1.7 GPM |
1.9 GPM |
2.1 GPM |
2.5 GPM |
3.0 GPM |
Generally speaking , in the above chart, areas shaded in dark grey are suitable only for small point-of-use
applications ( a single sink for instance)
Areas shaded in white may be suitable for homes with modest hot water needs and that use flow restricted
shower heads. Very careful measurement of you actual water flow rate and incoming water temperature are
recommended before making a final model selection.
Areas shaded in red represent the best model choices for general whole-house water heating demands.
Areas indicating a maximum flow rate of 4.0 gallons per minute or more are generally satisfactory for
running 2 showers at a time with stadard showerheads.
Please note that your incoming water temperature could vary significantly from other homes in your
immediate area, so checking your incoming water temperature is generally a more accurate means
of determining which model is best suited to your home or business.
SPECIFICATIONS
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