The main difference between an ERV and an HRV is the _____.
a. way the heat exchanger core works
b. size of the exhaust fans
c. type of economizer used
d. number of heat exchangers
a. way the heat exchanger core works
You might also like to view...
What's the advantage of atmospheric gas (argon/carbon dioxide/nitrogen) over halogenated gases for fire suppression in a computer room?
A) Uses less gas per volume of space. B) Has zero ODP and GWP. C) Is much more effective at deep seated fires.
According to the author, one of the ways in which sustainable construction is different from conventional building is ________
Fill in the blank(s) with correct word
To determine if a product or substance being used is hazardous, consult ________
A) SAE standards B) A dictionary C) An MSDS D) EPA guidelines
An 8-foot tall vertical stack of firewood casts a 12-foot shadow on horizontal ground. What is the angle of the sun in the horizon?
a. 8° b. 12° c. 45° d. 34°