Btu stands for british thermal unit and measures the heating or cooling capacity of a furnace or air conditioning unit.
Mobile home furnace roof jack.
Enter the square footage of your home or room and press go.
Adjustable from 15 23 when measured from roof not ceiling to top of furnace.
Models included are m1 mbha mgba mgbb mgha mghb mmba mmbb mmha mmhb msba msbb msha mshb.
Before purchasing make sure your old crown can be removed.
Enter your homes square footage to see how many btu s are required to adequately heat or cool it.
Series roof jack is used on almost all nordyne gas furnaces that are mgha or newer.
Hydroment sealant is the only substance approved for installation of roof jacks.
The nordyne 903656 roof jack cap is a redesigned all weather crown assembly that helps minimize pilot light blow outs.
Adjustable from 21 35 when measured from roof not ceiling to top of furnace.
Roof jacks for mobile home furnaces.
Roof jack with all weather crown for flat or low sloped roofs.
Fits miller intertherm nordyne and broan furnace model numbers starting with mi mbha mgba mgbb mgha mghb mmba mmbb mmha mmhb msba msbb msha and mshb.
Roof jack with all weather crown for a 3 10 or steeper roof slope.
For proper fit measure from the base of the furnace to the flange on the top of the roof.