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Do thermal breaks in metal framed windows raise or lower the U-factor? -
✔✔ANSWER✔✔->>Lowers the U-factor.
What is the code default U-factor for a metal framed, double paned window? -
✔✔ANSWER✔✔->>0.80
, What does the acronym SHGC mean? - ✔✔ANSWER✔✔->>Solar Heat Gain
Coefficient
What is the code default SHGC value for a vinyl framed, single glazed tinted
window? - ✔✔ANSWER✔✔->>0.60
What is the minimum efficiency rating for a natural gas furnace? -
✔✔ANSWER✔✔->>78% AFUE
An air source heat pump? - ✔✔ANSWER✔✔->>7.8 HSPF heating mode, 13
SEER cooling mode
What are the typical types of heating systems found in
residential construction? - ✔✔ANSWER✔✔->>Furnaces, heat pumps,
boilers, radiant floors
How is the HSPF calculated? - ✔✔ANSWER✔✔->>Btu's of heating / watts of
electricity to produce the heating
How is the SEER calculated? - ✔✔ANSWER✔✔->>Btu's of cooling / watts of
electricity to produce the cooling
Where do you find the efficiency ratings for boilers? - ✔✔ANSWER✔✔-
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