Xtremely Small Footprint
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| Dimensions (in.) |
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| Weight |
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| Amps* | |
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| G |
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| K |
| T |
| V |
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| Length |
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| Mounting |
| NPT |
| NPT |
| Flue Ø |
| C/A Ø |
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| (lbs.) |
| (ft2) |
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300 | 28 - 1/4 | 16 - 1/2 | 27 | - 9/16 | 3/4 | 1 - 1/2 | 4 | 4 | 3 | 410 |
| 4 . 3 |
| 3 | |||||||||
400 | 30 - 3/4 | 16 - 1/2 | 29 | - 3/4 | 1 | 2 | 4 | 4 | 3 | 465 |
| 4 . 7 |
| 4 | |||||||||
500 | 37 - 1/4 | 16 - 1/2 | 36 | - 1/4 | 1 | 2 | 4 | 4 | 3 | 505 |
| 5 . 7 |
| 4 | |||||||||
700 | 47 - 3/4 | 28 | 47 | - 1/16 | 1 - 1/4 | 2 | 6 | 6 | 19 - 3/8 | 550 |
| 7 . 3 |
| 5 | |||||||||
850 | 54 - 1/4 | 28 | 53 | - 9/16 | 1 - 1/4 | 2 | 6 | 6 | 19 - 3/8 | 580 |
| 8 . 3 |
| 5 |
Ratings shown are for elevations up to 10,000 feet. For installations at elevations above 2,000 feet, derate may apply, please consult the factory for additional instructions.
*Current Draw is for heater only. (Supply breaker must have delayed trip.)
Model |
| MBTUH |
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| Boiler |
| MBTUH |
| Water Heaters |
| Minimum | ||||
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| Input |
| Output |
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| Efficiency |
| Input |
| Output |
| Efficiency |
| Input | |
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300 | 300 | 282 | 94% | 300 |
| 285 | 95% | 60 | |||||||
400 | 399 | 375 | 94% | 399 |
| 379 | 95% | 80 | |||||||
500 | 500 | 470 | 94% | 500 |
| 475 | 95% | 100 | |||||||
700 | 700 | 658 | 94% | 700 |
| 665 | 95% | 140 | |||||||
850 | 850 | 799 | 94% | 850 |
| 808 | 95% | 170 |
Heater |
| Certified |
| Service |
Side |
| Minimum |
| Minimum |
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Front | 24” |
| 24” | |
Rear | 24” |
| 24” | |
Right | 0” |
| 0” | |
Left | 0” |
| 0” | |
Top | 12” |
| 24” | |
Floor | 0” | |||
Vent | 1” |
*Do not install on carpeting
Note: Local codes may require increased clearances
XFyre |
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| Water Heater Pump Sizes |
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| Soft |
| Medium |
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| Hard | |||||||||
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HP |
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| Amps |
| HP |
| Amps |
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| HP |
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| Amps | ||
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300 |
| 1/8 | 1.3 | 1/4 | 5.7 |
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400 |
| 1/8 | 1.3 | 1/2 | 6.9 |
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| Do not use when | |||||||
500 |
| 1/4 | 5.7 | 1/2 | 6.9 |
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| hardness exceeds | |||||||
700 |
| 1/2 | 6.9 | 1 | 14.0 |
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| 15 grains per gallon | |||||||
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850 |
| 1/2 | 6.9 | 1 | 14.0 |
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Note: Current draw (Amps) is for pump only
Water hardness grains per gallon
Soft =
Water above 15gpg requires water softener.
5