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| Seasonal energy efficiency ratio (seer)
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A measure of seasonal or annual efficiency of a central air conditioner or air conditioning heat pump. It takes into account the variations in temperature that can occur within a season and is the average number of BTU of cooling delivered for every watt-hour of electricity used by the heat pump over a cooling season. |
| Seasonal performance factor (spf)
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Ratio of useful energy output of a device to the energy input, averaged over an entire heating season. |
| Seasoned loan
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Loan where the borrower has proven his credit worthiness by having consistently made payments. |
| Seasoned wood
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Lumber that has been allowed to dry outside. |
| Seasoning
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Drying out of green lumber, either in an over or kiln or by exposing it to air. |
| Seat angle
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(1) Angle of a valve seat. (2) The part of an angle iron that holds a beam. |
| Seat cut
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A horizontal cut which, along with the plumb cut, forms the cutout that allows the rafter to sit against the top plate. |
| Seawall
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Barrier that prevents erosion and water damage when erected at a shoreline. |
| Second deed of trust
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Deed of trust or mortgage in which the lender subordinates her loan to another lender whose priority is first if there is non-payment by the borrower. |
| Second home
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A residence that is not one's primary residence. Under current tax law, a taxpayer may deduct interest on two personal residences. |
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