Boiler Room Resource Center

We have compiled this section to help you when ordering or researching parts & systems. If you have any further questions or concerns, please don’t hesitate to contact one of our specialists. Cic Boiler Room offers Boiler Room Resources to help you when ordering or researching parts & systems. Please contact us with questions or suggestions for additional resources we may be able to offer on our website.

Natural Gas

1030 Btu / cu. ft.
1 CF = 1000 Btu = 1 MBF
1 CCF = 100 CF = 100,000 Btu = 1 Therm
1 MCF = 1000 CF = 1,000,000 Btu = 1 DecaTherm

Oil

#2 Oil… 138,500 Btu / gal
#4 Oil… 145,000 Btu / gal
#6 Oil… 150,000 Btu / gal
Gasoline… 125,000 Btu / gal
Propane… 91,500 Btu / gal
1 Barrel oil = 42 gal

Electricity

3413 Btu / kWh
1 kW = 1000 W = 3413 Btu
1 HP = 0.746 kW = 2545 Btu/hr
kW = Volts x Amps x P.F/1000 (P.F = 0 to 1)
kW (3 phase) = Volts x Amps x 1.732 x P.F/1000
C.O.P = Btu cooling / Btu input
EER = Btu cooling / electric input watts

Heat & Power Equivalency Table

Condensing Rate (GPM)BTUs/hourLbs/hour Sq. Ft. EDR
1 Boiler HP (BHP) .069 33,47534.5 139.4
1,000 Sq. Ft. EDR.50240,000247.31,000

Liquid, Volume and Weight Equivalency Table

GallonsCubic Feet (ft.3)Cubic Inches (in.3) Lbs. of Water
1 Gallon10.13372318.334
1 Cubic Foot7.48 1172862.34
1 Lb. of Water 0.120.0160427.721

Pressure, Head and Vacuum Equivalency Table

Feet of head (water) lbs./sq. inch (PSIG) inches Hg (mercury)
1 foot head (water)10.4330.883
1 lbs./sq. inch (psig) 2.3112.04
1 inch Hg (mercury) 1.130.4911

Wood

Approximate weight per standard cord (80 cubic feet of solid wood content) of various woods (green and air-dried to 20-percent moisture content) and potential heat of air-dried wood

Type of Wood Pounds green 1Pounds air-dried 2Million Btu available 3
Ash3,9403,37023.6
Basswood3,3602,10014.7
Box elder 3,5002,50017.5
Cottonwood3,9202,30416.1
Elm (American)4,2932,86820.1
Hackberry4,0003,08021.6
Hickory (shagbark)4,9804,16029.1
Locust (black)4,6404,01028.1
Maple (silver)3,7832,97020.8
Oak (red)4,9883,60925.3
Oak (white)4,9423,86327.0
Osage orange5,4804,38030.7
Pine (shortleaf) 4,1202,71319.0
Red cedar3,2602,70018.9
Sycamore4,1602,95620.7
Walnut (black)4,6403,12021.8

1 – Approximate weight of standard cord (occupying 128 cubic feet of space and containing 80 cubic feet of solid wood), for the first two columns of figures.
2 – To 20 percent moisture content.
3 – Potential available heat from standard cord with 100 percent unit efficiency. Heat at 20 percent moisture content.

Carbon Emissions by Fuel

Electric…1 metric ton of CO2 = (kWh * .7)/1000
Natural Gas…1 metric ton of CO2 = ((Therm/9.480) * 52)/1000
#2 Oil…1 metric ton of CO2 = (Gal * 9.84)/1000
Heavy Oils…1 metric ton of CO2 = Bbl * .43
Propane…1 metric ton of CO2 = (Gal * 12.669)/2205
Gasoline…1 metric ton of CO2 = (Gal * 19.4)/2205
Steam…1 metric ton of CO2 = Mlbs * .92356

Energy Conversion Factors