Independence® Gas-Fired Boiler

BOILER

NUMBER

IN3

IN4

IN5

IN6

IN7

IN8

IN9

AGA

INPUT

MBH (1)

62

105

140

175

210

245

280

DOE

HEATING

CAPACITY

MBH (1)(2)

51

87

115

144

173

202

231

AGA/CGA

GROSS

OUTPUT

MBH

IN10(3)

IN11(3)

IN12

315

349

385

259.87

287.92

317.62

AFUE

I=B=R RATING (2)

WATER

MBH

44

76

100

125

150

176

201

STEAM

MBH

38

65

86

108

130

152

174

24V EI

STEAM

SQ. FT.

WATER STEAM WATER STEAM

158

271

358

450

542

633

725

81.0

81.3

81.6

81.8

82.1

81.1

81.4

80.0

80.0

80.3

80.6

80.9

80.0

80.3

83.1

83.1

83.1

83.2

83.2

83.2

83.2

81.9

82.0

82.0

82.1

82.1

82.2

82.2

APPROX.

SHIPPING

WEIGHT

(LBS.)

350

420

485

555

620

690

760

226

250

276

195

216

239

812

900

996

COMBUSTION EFFICIENCY (%)

WATER

83.5

83.5

83.5

STEAM

82.5

82.5

82.5

815

885

955

MINIMUM

RECOMMENDED

CHIMNEY SIZE

ROUND

Dia. (In.) x Ht.(Ft.)

(4)(5)

4 x 15

5 x 15

6 x 15

6 x 15(5)

7 x 15

7 x 15(5)

8 x 15

8x15(5)

9x15

9x15

* LP available on IN3-IN9

1.

Ratings shown are for installations at sea level and elevations up to 2,000 ft. For elevations above 2,000 ft., ratings should be reduced at the rate of four percent (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 and 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