COLONNA-DAUM-PRICE, INCORPORATED
207 TRAVIS LANE, WAUKESHA WI 53189 PHONE (262)542-7900
6904 UNIVERSITY AVE, MIDDLETON, WI 53562 PHONE (608)831-6969
 

WATER VOLUME OF PIPE (PER FOOT)

 

IRON

COPPER

PLASTIC

3/8”

0.010

.0007

0.0057

1/2”

0.016

0.012

0.1020

3/4”

0.028

0.025

0.0206

1”

0.045

0.043

0.0346

1-1/4”

0.077

0.085

 

1-1/2”

0.105

03092

 

2”

0.174

0.161

 

2-1/2”

0.248

0.275

 

3”

0.383

0.390

 

4”

0.660

0.690

 

HVAC CONVERSIONS
Gallon = 231 Cubic Inches
1 Cubic foot = 7.481 Gallons
1 Gallon Water @60 Deg F = 8.34 lbs.
1 Pound per Square Inch of Water - 2.31 Feet
1 Foot of Water = .433 Lbs. per Sq. Inch
1 Inch Mercury = 1.13.Feet of Water
1,000 Watts = 3,413 BTU/HR
1 Boiler Horsepower = 33,476 BTU/HR
1 Ton Cooling = 12,000 BTU/HR

LATENT HEAT OF EVAPORATION
960 BTU per lb of Water

LATENT HEAT OF FUSION
144 BTU per Lb of Water

COMBUSTION AIR INTAKE REQUIREMENTS FOR WISCONSIN
If Boiler Room has no exterior walls, you need 1 Sq Inch per 1,000 BTU input of all gas fired appliances in room.  If Boiler Room has an exterior wall, you need 1 Sq inch per 2,000 BTU input of all gas fired appliances in room.
Fan assisted intake air = 1 CFM per 3,340 Input of all gas fired appliances in room

THERMAL EXPANSION OF PIPE

TEMPERATURE

IRON

COPPER

32

0

0

100

0.5

0.8

150

308

1.4

200

1.2

2

250

1.7

2.7

300

2

3.3

Above is measured in inches/100 ft.

PROPERTIES OF SATURATED STEAM

26”HG

125

93

22”HG

152

120

18”HG

169

137

14”HG

182

150

10”HG

192

160

8”HG

197

165

6”HG

201

169

4”HG

205

173

2”HG

209

177

0

212

180

2 PSI

219

187

4 PSI

225

193

6 PSI

230

198

8 PSI

235

203

10 PSI

240

208

15 PSI

250

219

20 PSI

259

219

25 PSI

267

236

30 PSI

274

243

BTU CARRY CAPACITIES OF COPPER PIPE
(NOTE: The baseboard length’s shown below are based on 600 BTU/HR with 3/4” element, at approx. 185 deg.F Delta “T”)

1/2”

15,000 BTU/HR

25 FT BASEBOARD

3/4”

31,000 BTU/HR

50 FT BASEBOARD

1”

59,000 BTU/HR

95 FT BASEBOARD

1 1/ 4”

130,000 BTU/HR

210 FT BASEBOARD

1 1/2”

185,000 BTU/HR

300 FT BASEBOARD

2”

360,000 BTU/HR

585 FT BASEBOARD

2 1/2”

610,000 BTU/HR

1000 FT BASEBOARD

3”

1,150,000 BTU/HR

1875 FT BASEBOARD