How To Install A Downflow Furnace

Downflow furnaces are a popular type of furnace, as they are relatively low-cost and easy to install. In most cases, downflow furnaces can be installed in a single day by a professional HVAC technician. The installation process typically involves mounting the furnace on a wall or floor, connecting the furnace to the ductwork, and wiring the furnace to the electrical system.

How To Install A Downflow Furnace

Downflow furnaces are an older style of furnace where the heat exchanger is located above the flames. The blower is also located above the flames, and pushes the heated air down through the ducts and into the home. Downflow furnaces are not as common as upflow furnaces, but they are still available. They are typically cheaper to purchase and install than upflow furnaces. To install a downflow furnace, you will need to first remove the old furnace

-Downflow furnace -Pipe insulation -Tape measure -Pipe wrench -Pipe cutter -Level -Pencil -Ruler or a straight edge -Marker

  • A hole is then cut
  • Downflow furnace installation begins with the inspection of the existing ductwork. the installer will need to know the size of the furnace and the size of the ducts in order to choose the correct adapter

: – Downflow furnaces can be installed in either a horizontal or vertical orientation. – Horizontal installations are more common, as they take up less space and are easier to service. – Vertical installations must be vented through the roof, and are not as common. – Downflow furnaces must be installed on a level surface, and the flue must be clear of obstructions. – The furnace should be properly grounded before installation. – The furnace should be


Frequently Asked Questions

How Do I Know If My Furnace Has A Downflow?

The best way to determine if your furnace has a downflow is to look at the manual or contact the manufacturer.

When Should You Use A Downflow Furnace?

Downflow furnaces are typically used in applications where the air handler is on the floor and the furnace is on a raised platform. This type of furnace is ideal for homes with basements, as the warm air rises up through the home and out the upper-level vents.

Can A Universal Furnace Be Used As A Downflow Furnace?

A downflow furnace is designed to allow the warm air to flow downwards and out of the house, while cold air enters the home through the bottom grille. A universal furnace can not be used as a downflow furnace.


To Review

Downflow furnaces must be installed in accordance with the manufacturer’s instructions and local building codes. First, the furnace must be installed on a sturdy, level surface. Then, the furnace must be connected to the ductwork and electrical supply. Finally, the furnace must be properly leveled and balanced.

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