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Alexander Spivak, Ashok Kumar and Matthew Franchetti
This chapter will discuss heat loss through doors, which is reasonably similar
to heat loss through windows discussed in Chapter 3, and sustainability techniques that
help improve bottom line.
Doors, door insulation, U-value R-value, payback period, heat
transfer, heat loss, cost of heating, cost of cooling, old door, draft, draft cost, draft
cost calculation, heat loss, heat loss across door, type of door, door design, door
shape effect, when to replace door.
College of Engineering The University of Toledo Toledo, OH 43606 USA