Why is it desirable to have a minimum water temperature entering the boiler?
A) To increase combustion efficiency B) To reduce the load on the boiler
C) To prevent downdrafts in the flue D) To prevent condensation in the flue
Question 2
What items should be checked when converting an indoor air handler from upflow configuration to horizontal configuration?
A) The blower must be removed and turned around.
B) The transformer and fan relay should be changed.
C) Drain pan, correct drain opening, and service access
D) The cabinet feet must be relocated from the bottom to the side.
The water cycle.
Rates of water loss by two turtles and a tortoise indicate an inverse relationship between the dryne
Water Polar Bond
Variable Gases: Water Vapor
Jan-Dec Global Mean Temperature Over Land and Ocean
Daily Variations in Temperature and Relative Humidity