Empire Stove 5" Fresh Air Intake Kit for St. Clair 4300 (WA5FP)
An Optional 5" Outside Combustion Air Kit for the Empire Stove St. Clair 4300 Wood Fireplace
The Empire Stove WA5FP fresh air intake kit connects the St. Clair 4300 to outside combustion air through its 5" fresh air opening.
Key Features
- 5" fresh air intake kit for the St. Clair 4300
- Fresh air intake can be installed on the right side or at the bottom of the fireplace
- Insulated HVAC-type duct (ULC S110 or UL 181 class 0 or 1, rated to 250 °F) and outside wall termination are not supplied with the fireplace
- Part number WA5FP
Product Features
Outside Combustion Air
The kit ducts outside air to the St. Clair 4300 combustion air intake, as described in the fresh air intake appendix of the installation manual.
Framing Allowance
The St. Clair 4300 manual calls for at least 6" of additional framing width for the fresh air intake kit.
Product Specifications
Compatibility
| Compatible Model |
Model Number |
Appliance Type |
| St. Clair 4300 |
WB43FP |
Wood Fireplace |
General
| Feature |
Specification |
| Part Number |
WA5FP |
| Component Type |
Fresh air intake kit |
| Intake Diameter |
5" |
| Requirement |
Optional |
| Duct Requirement |
Insulated HVAC-type duct (ULC S110 or UL 181 class 0 or 1), rated to 250 °F |
Manufacturer Notes
- The St. Clair 4300 installation manual lists a 5" adapter, air inlet block-off plate, and screws as supplied with the fireplace, and the insulated duct, outside wall termination, and adjustable clamps as not supplied. Kit contents are as packaged by Empire Stove.
- The St. Clair fireplaces are not approved for mobile home installation; this kit provides outside combustion air for zero-clearance installations.
- Compatibility is as listed in the Empire Stove 2026 price sheet. Any installation must follow the instructions supplied with the component and the appliance installation manual.
About the Manufacturer
Who Is Empire Stove?
Empire Stove is the wood-burning stove, insert, and fireplace line of Empire Comfort Systems, Inc. of Belleville, Illinois. Its Gateway wood stoves, Archway wood inserts, and St. Clair wood fireplaces are made in North America and share a one-lever air control, a no-mess ash pan, and an air wash system designed for simple everyday operation.
Built to Last
Empire Stove appliances are constructed with thick 5/16" steel, lined with high-density firebricks, and fitted with a high heat ceramic baffle and high temperature ceramic glass, and they are backed by the Empire Limited Lifetime Warranty.
Certification and Support
Current Empire Stove wood-burning models meet the EPA 2020 emissions standard. Empire publishes installation and operation manuals, spec sheets, brochures, and test reports for each model, and supports owners through online product registration and its authorized dealer network.
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