A Condensing Gas Furnace Uses ____ from a Condensing Type

question 2

Multiple Choice

A condensing gas furnace uses ____ from a condensing type heat exchanger to increase the furnace efficiency.

• A) sensible heat
• B) latent heat
• C) superheat
• D) subcooling

---

Definitions:

Direct Relationship

A relationship between two variables in which they move in the same direction, meaning as one variable increases, the other also increases.

Independent Variable

A variable presumed to influence or cause changes in another variable, referred to as the dependent variable.

Regression Analysis

Regression analysis is a statistical method used for estimating the relationships among variables, often to determine how the typical value of the dependent variable changes when any one of the independent variables is varied.

Least Squares Line

The best-fitting straight line through a set of data points, minimizing the sum of the squares of the vertical distances of the points from the line.