Product Specifications

© 2007 U.S. Boiler Company, Inc. - Lancaster, PA
Phone: [phone]
www.burnham.com
Printed in the U.S.A.
Form No. HYDL07084-10M spm
Boiler
Number
Input
MBH
(1)
DOE Heating
Capacity
I=B=R Rating (2)
AFUE
Approx
Shipping
Weight
(Lbs.)
Minimum Chimney
Requirements
(Round) Dia. (In.) x
Ht. (Ft.) (4) (5)
Water
MBH
Steam
MBH
Steam
Sq. Ft.
24V EI
Water Steam Water Steam
IN3 62 51 44 38 158 81.0 80.0 83.1 81.9 350 4x15
IN4 105 87 76 65 271 81.3 80.0 83.1 82.0 420 5x15
IN5 140 115 100 86 358 81.6 80.3 83.1 82.0 485 6x15
IN6 175 144 125 108 450 81.8 80.6 83.2 82.1 555 6x15(5)
IN7 210 173 150 130 542 82.1 80.9 83.2 82.1 620 7x15
IN8 245 202 176 152 633 81.1 80.0 83.2 82.2 690 7x15(5)
IN9 280 231 201 174 725 81.4 80.3 83.2 82.2 760 8x15
Gross Output
MBH
Combustion Efficiency (%)
Water Steam
IN10(3) 315 260 226 195 812 83.5 82.5 815 8 x15(5)
IN11(3) 349 288 250 216 900 83.5 82.5 885 9x15
IN12 385 318 276 239 996 83.5 82.5 815 9x15
Boiler
Number
Input
MBH
DOE
Heating
Capacity
MBH (1)
I=B=R Net
Ratings
Maximum
Vent Length
Equivalent
Ft. (2) (3) AFUE%
Approx
Shipping
Weight
(LBS.)
Steam
MBH
Steam
Sq. Ft.
PIN3PV 62 52 39 163 45 83.2 355
PIN4PV 105 87 65 271 35 82.2 425
PIN5PV 140 116 87 363 35 82.2 490
PIN6PV 175 145 109 454 35 82.2 560
Independence Ratings & Specifications*
Independence PV Ratings & Specifications
Natural Gas, Packaged, Steam Only
*LP available on IN3-IN9
1. Ratings shown are for installations at sea level and elevations up to 2,000 ft. For higher elevations, reduce ratings 4% for each 1,000 ft. above sea level
2. Capacities, outputs, and ratings are based on steam combustion efficiency of 82.5%. Water combustion efficiency is 83.5%.
3. For Canadian builds only: reduce input and output by 3%
4. 15 ft. height is measured from top of drafthood to top of chimney.
5. IN6, IN8, & IN10 – Canada only: Increase chimney diameter by 1”
Working Pressure: 15 PSI Steam; 30 PSI water
1. Capacities and ratings are based on steam combustion efficiency of 83.0%. (84.1% for
PIN3PV)
2. The approved venting system for the Independence PV is 3” AL29-4C® stainless steel. Do
not substitute other materials.
3. Vent pipe length is listed in equivalent feet. Any elbows or tees used can have specific values
which must be sutracted from the total length to determine maximum length of straight
pipe. Consult Installation, Operating, and Service Instructions for details.
Steam only – 15 PSI working pressure
Boiler
Model
A B C D E F G
IN3 14-1/2 40 33-3/4 4 40-1/4 4-3/4 7-1/4
IN4 17-3/4 40 34-3/4 5 40-1/4 4-3/4 8-7/8
IN5 21 40 35-3/4 6 40-1/4 5-1/4 10-1/2
IN6 24-1/4 40 35-3/4 6* 40-1/4 5-1/4* 12-1/8*
IN7 27-1/2 40 36-3/4 7 40-1/4 7-1/2 13-3/4
IN8 30-3/4 40 36-3/4 7* 40-1/4 7-1/2* 15-3/8*
IN9 34 40 37-3/4 8 40-1/4 7-1/2 17
IN10 37-1/4 45 38-3/4 8* 45-1/2 7-1/2 18-5/8
IN11 40-1/2 45 38-3/4 9 45-1/2 7-1/2 20-1/4
IN12 43-3/4 45 38-3/4 9 45-1/2 7-1/2 21-7/8
PIN3PV 14-1/2 45 N/A 3 N/A N/A 4
PIN4PV 17-3/4 45 N/A 3 N/A N/A 8-1/4
PIN5PV 21 45 N/A 3 N/A N/A 9-1/4
PIN6PV 24-1/4 45 N/A 3 N/A N/A 9-1/4
*Dimensions indicated are for USA only – For Canada, use dimension on next larger model.
Dimensions