6
MorrHeat - Most Heat In The Industry - Rev 3/18/2019
SPECIFICATIONS - DIMENSIONS TABLE 1
Boiler
Model
OIL
GPH
APPROX.
DRY
WEIGHT
LBS.
Vent
Connect
DIA"
I-B-R
VENT
DIA"
DIM"
WATER
CONTENT
GAL.
MHB280
2.0
1301
10
8
42
22.2
MHB360
2.5
1654
10
10
52
28.5
MHB480
3.0
1831
10
10
57
31.7
Note: All dimensions are inches
* Gross I-B-R rating has been determined under the I-B-R provisions governing forced draft conditions (0.10 inch W.C
positive pressure at the boiler flue gas outlet.
** Net ratings are based on piping and pickup allowance 1.15.
*** I-B-R Vent Diameter size is the pipe size used from boiler vent connector F to Termination of stub stack: Max Height
15' (For forced draft firing only). For chimney venting consult National Fuel Gas Code.
CENTERLINE OF
BURNING PLATE
O B S E R VAT I O N
PORT
FRONT
RIGHT
REAR
2 - 1/2"
M.P.T SUPPLY CONNECTION
2 - 1/2"
F.P.T RETURN
CONNECTION
29- 1/2"
20"
4"
C. O. PORTS
F
L
9 - 3/8"
36"
17"
33"
F
L
