Heating I Section#1 Furnace - Gas and Oil Quiz#14

This study session deals with the venting systems of oil furnaces, mid-efficiency oil furnaces and gravity oil furnaces.

The estimated completion time for this study session is ninety minutes.

Objectives
At the end of this study session, you should be able to:

• Describe the operation of a barometric damper.
• List six problems commonly associated with the barometric damper.
• List twelve problems associated with the vent connector.
• Describe the basic difference between a mid-efficiency and a conventional oil furnace, and list two of the concerns.

List 2 conditions which can be found with sidewall vented mid-efficiency oil furnaces.

1. Corroded vents

2. Poor reliability

3. Poor location for vent termination

List 7 conditions which can be found with the barometric damper.

1. Rusting
2. Inoperative
3. Missing
4. Misadjusted
5. Inadequate draft air
6. Spillage
7. Improper location.

Since oil combustion gases are hotter than natural gas combustion gases, you will rarely or never find _ used as an exhaust vent material.

Aluminum

Since the oil burner is forced draft, how do we prevent combustion gases from leaking out the barometric damper?

The damper can only swing one way, so the forced draft burner pressure can close the damper, but not swing it past the vertical position, which would allow flue gases into the house.

What is the purpose of the barometric damper?

The barometric damper ensures adequate draft air supply for the chimney.

What is the required clearance to combustibles for a single wall exhaust flue from an oil furnace?

9 inches

Every oil furnace must have a barometric damper.

False

Power ventors are never allowed on a conventional furnace

False

The vent connector from an oil furnace must connect to the chimney above a vent connector from a water heater.

False