1-1/4
2-1/2
8-1/2
5
9/16”
MOUNTING
HOLES 4X
H
WATER INLET
H
WATER OUTLET
22
12-3/4
6-3/4
32
2-3/4
13
4-1/2
6-3/4
7
25-3/4
3/4” NPT PVC CONDENSATE
DRAIN CONNECTION
G
GAS
7/8” ELECTRICAL
CONNECTIONS
K
FLUE CONNECTION
T
COMBUSTION AIR
CONNECTION
(OPTIONAL)
LEFT VIEW
FRONT
RIGHT VIEW
REAR
TOP VIEW
F
E
A
1° JACKET TOP SLOPE
V
TM
MENU
RESET
SCROLL
SCROLL
ENTER
ESC
5
X
tremely Small Footprint
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.
CLEARANCES
Front
24”
24”
Rear
24”
24”
Right 0”
0”
Left 0”
0”
Top
12”
24”
Floor
0”
---
Vent
1”
---
Certified
Minimum
Service
Minimum
*Do not install on carpeting
Note: Local codes may require increased clearances
Heater
Side
Note: Current draw (Amps) is for pump only
Water hardness grains per gallon
Soft = 0-4 • Medium = 5-15 • Hard = 16-25
Water above 15gpg requires water softner.
Model MBTUH
Input
Boiler
Output
Efficiency
Water Heaters
Output
Efficiency
MBTUH
Input
Minimum
Input
MBTUH
300
300
282
94%
300
282
94%
60
500
500
470
94%
500
470
94%
100
850
850
799
94%
850
799
94%
170
Model
Dimensions (in.)
A
Length
Amps*
PHY
SICAL
D
A
TA
300
28 - 1/4
16 - 1/2
27 - 9/16
3/4
1 - 1/2
4
4
3
410
6.6
3
500
37 - 1/4
16 - 1/2
36 - 1/4
1
1 - 1/2
4
4
3
505
7.9
4
850
54 - 1/4
28
53 - 9/16
1 - 1/4
2
6
6
19 - 3/8
580
9.5
5
Foot-
(ft
2
)
Ship
Weight
(lbs.)
E
F
Mounting
G
NPT
H
NPT
K
Flue Ø
T
C/A
Ø
V
300
1/8
1.3
1/4
5.7
500
1/8
1.3
1/2
6.9
850
1/2
6.9
1
14.0
Soft
Water Heater Pump Sizes
Hard
Medium
HP
Amps
HP
Amps
HP
Amps
XFyre
Model
*Current Draw is for heater only.
(Supply breaker must have delayed trip.)
Do not use when
hardness exceeds
15 grains per gallon
