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Boiler
Model
Input Btu/hr
DOE Heating
Capacity³
Btu/hr
Net I=B=R
Rating¹
’
²
Btu/hr
Seasonal
Efficiency³
AFUE %
Shipping
Weight
Lbs.
PI-T50 18,000 to 50,000 16,000 to 46,000 40,000 92 58
PI-T80 19,000 to 80,000 17,000 to 74,000 64,000 92 58
PI-80 27,000 to 80,000 25,000 to 74,000 64,000 92 75
PI-140 46,000 to 140,000 43,000 to 129,000 112,000 92 101
PI-199 66,000 to 199,000 61,000 to 183,000 159,000 92 111
Boiler
Model
Fan Speed – RPM
High Fire Ignition Low Fire
PI-T50 3200 3000 1250
PI-T80 4700 3000 1200
PI-80 4600 4600 2000
PI-140 4300 2000 1400
PI-199 6000 3745 2100
Table 10.1: Boiler Ratings
Table 10.2: Combustion Air Fan Speed
1. Net I=B=R ratings are based on an allowance of 1.15.
2. Consult factory before selecting a boiler for installations having unusual piping and pickup requirements, such as
intermittent system operation, extensive piping systems, etc.
3. Heating Capacity and Annual Fuel Utilization Efficiency (AFUE) ratings are based on U.S. Government Testing.
Note: These values are subject to change without notice.
BOILER DIMENSIONS & RATINGS
Boiler
Model
Supply &
Return Conn.
(NPT)
Relief Valve
Outlet
(NPT)
Gas Supply
Conn.
(NPT)
Air Inlet &
Vent Conn.
(Sch 40 PVC)
Condensate
Drain Pipe
(NPT)
PI-T50 1-1/4" 3/4" 3/4" 2" 3/4"
PI-T80 1-1/4" 3/4" 3/4" 2" 3/4"
PI-80 1-1/4" 3/4" 3/4" 3" 3/4"
PI-140 1-1/4" 3/4" 3/4" 3" 3/4"
PI-199 1-1/4" 3/4" 3/4" 3" 3/4"
Table 10.3: Connection Sizes