32
15 - RATINGS AND CAPACITIES
PN 240012785 Rev. C [11/15/2020]
Table 15-1 - Ratings and Capacities
Boiler
Model
Number
of
Sections
(1)
Input
Btu/hr
(1)
Heating
Capacity
Btu/hr
(2)
Net AHRI
Rating Water
Btu/hr
AFUE
Flue
Diameter
Inches
(1)
High
Altitude Input
Btu/hr
(3)
Recommended
Air Cushion
Tank
MGB-060K
3
59,000
50,000
43,000
84.0
4
53,100
15
MGB-095K
4
92,500
78,000
68,000
84.0
5
83,200
30
MGB-120K
5
120,000
101,000
88,000
84.0
6
108,000
30
MGB-150K
6
149,000
125,000
109,000
84.0
6
134,100
30
MGB-175K
7
175,000
147,000
128,000
84.0
7
157,500
30
MGB-205K
8
205,000
172,000
150,000
84.0
7
184,500
30
MGB-235K
9
235,000
197,000
17
1
,000
84.0
7
211,500
30
EXPLANATORY NOTES
-- All boilers are design certified for installation on noncombustible floor.
-- Recommended chimney height 20 feet. In special cases where conditions permit, chimney height may be
reduced to 10 feet. Refer to the latest revision of National Fuel Gas Code ANSI Z223.13/NFPA 54 part 11.
-- Electric service to be 120 Volts, 15 Amps, 60 Hz.
-- The MEA number for the this boiler is 19-79-E.
(1) Input rating for sea level to 2,000 ft. (610m) above sea level.
United States, over 2000 ft (610m) above sea level. Reduce input rate 4% for every 1000 ft (304m) above sea
level.
Canada, 2000 ft (610m) to 4500 (1350m) above sea level reduce input per table. Over 4500 ft (1350m) above sea
level. Contact Provincial authority having jurisdiction.
(2) Net AHRI Water Ratings shown based on piping and pickup allowance of 1.15. Consult manufacturer before selecting
boiler for installations having unusual piping and pickup requirements, such as intermittent system operation,
extensive piping systems, etc.
For forced hot water systems where boiler and all piping within area to be heated, boiler may be selected on basis of
its heating capacity.
(3) Tank sized for non-ferrous baseboard or radiant panel systems. Increase size for cast iron baseboard and
radiation.
STANDARD EQUIPMENT: Boiler Jacket, Cast Iron Boiler Battery, High Limit Control, Intermittent Electric Ignition Pilot
System, Vent Damper Relay, Main Gas Burners, Gas Control (Includes Automatic Gas Valve, Intermittent Pilot, Safety Shutoff,
Pilot Flow Adjustment, Pilot Filter), A.S.M.E. Relief Valve, Drain Valve, Spill Switch, Rollout Switch, Automatic Vent Damper,
Wiring Harness, Safety Pilot.
