3 methods

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HEAT Transfer
3 methods
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Conduction
Heat is transferred through a material there
must be contact between objects
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Feel each why does one feel colder?
Wood
Metal
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Component R-value
Wall - Outside Air Film 0.17
Siding - Wood Bevel 0.80
Plywood Sheathing - 1/2" 0.63
3 1/2" Fiberglass Batt 11.00
1/2" Drywall 0.45
Inside Air Film 0.68
Total Wall Assembly R-Value 13.73
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Convection
Heat is transferred by a moving fluid (air,
water, etc) warm or cold fluid carries that
heat with it as it moves
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http//www.selectappliance.com/exec/ce-product/ar_
ar36g-4b-cl
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Radiation
Heat is transferred by Electromagnetic
waveslight.
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Summary