When selecting a gas furnace, how is its heating capacity ...

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When selecting a gas furnace, how is its heating capacity determined?
 
  a. Its input rating must exactly match the calculated heat loss of the structure.
  b. Its output rating must exactly match the calculated heat loss of the structure.
  c. Its output rating can be up to 150 percent of the calculated heat loss of the structure.
  d. Its output rating should be no less than 95 percent of the calculated heat loss of the structure.

Question 2

If excess carbon monoxide is present in a building heated by a gas furnace, it is likely a sign of _____.
 
  a. incomplete combustion
  b. complete combustion
  c. a contaminated fuel supply
  d. too much oxygen

[Ptupou85]

Answer to Question 1

d

Answer to Question 2

a

[Starlight]

Both answers were spot on, thank you once again

[Ptupou85]

Great! Please up vote