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Goodman 21-Inch Downflow Furnace Subbase | SBT21

Goodman 21-Inch Downflow Furnace Subbase | SBT21

Name: Goodman 21-Inch Downflow Furnace Subbase | SBT21
Brand: Goodman
SKU: SBT21
Price: 246.38 USD
Availability: InStock

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SKU:: SBT21

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UPC:
Condition:: New
Width:: 34.00 (in)
Height:: 44.00 (in)
Depth:: 24.00 (in)

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Overview

Goodman 21-Inch Downflow Furnace Subbase | SBT21

Product details

Description

Product Summary

The Goodman SBT21 is an OEM 21 in downflow furnace subbase for Goodman 21-inch downflow furnaces.

Subbases let downflow furnaces sit on combustible floors with the required clearance.

Key Features

Goodman OEM: designed for Goodman equipment.
Code support: helps meet installation requirements.
Simple install: uses standard fasteners.
OEM part number: order by the Goodman part number for an exact match.
Contractor stock: common add-on part.

Ideal Applications

Goodman equipment installs
Downflow furnace installs

Frequently Asked Questions

Which equipment does it fit?

Goodman 21-inch downflow furnaces. Confirm in the equipment installation manual.

Is it a Goodman part?

Yes, it is a Goodman OEM accessory.

Are fasteners included?

Check package contents; anchors to concrete are usually field supplied.

Comfort for the people who live there

The right equipment keeps the rooms you live in steady and quiet, whether it's dinner in the kitchen or a weekend project in the garage.

Specifications

Extra Information

Find your comfort-ready size with confidence

Get a fast, learning-friendly estimate for tons and BTUs, then review it with a Pro to dial in the perfect fit for your home.

Quick sizing snapshot

Enter your home size and a few basics to see a quick HVAC365 sizing snapshot you can review with a Professional.

Home size (sq ft)

Enter at least 100 sq ft.

Use conditioned square footage only; skip garages and unfinished basements.

Climate

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Home type

Select your home type.

Shared walls and insulation levels change the load—pick what matches your structure.

System type

Choose a system type.

Match the system to your ductwork, fuel, or preferred heat source for best comfort.

This is a sizing estimate for general guidance only. Always confirm final size, duct design, and fuel type with a Professional before purchasing equipment or pulling permits.

Brand:

Goodman

Width:

34.00 (in)

Height:

44.00 (in)

Depth:

24.00 (in)

Weight:

140.00 LBS

Model Number:

SBT21

Part Type:

Subbase

Compatible Equipment:

Goodman 21-inch downflow furnaces

Please Note: To validate the manufacturer's warranty, equipment must be installed by a qualified licensed professional in accordance with local codes and the manufacturer's installation requirements.