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Chimney Cap & Fireplace Spark Arrester Screen — NFPA 211 / IRC R1003.9

Chimney Cap & Fireplace Spark Arrester Screen for stopping burning embers from leaving the chimney and keeping birds and animals out, while letting flue gas draw freely. 3 sizes listed, with technical drawing and quotation.

A stainless steel chimney cap with a woven wire spark arrester screen around its sides mounted on top of a brick chimney
Chimney Cap & Fireplace Spark Arrester Screen (NFPA 211 / IRC R1003.9) — Spark Arresters

Technical Drawing

Customize the parameters below — every spec field is editable, and the drawing redraws to match the values you choose. Changing the size will snap the other fields to that size's standard values; you can then override any individual value.

Sends the selected values to the quote form below.

Request a Quotation for Chimney Cap & Fireplace Spark Arrester Screen

Tell us the specification (mesh count / micron / dimensions), material and quantity you need for Chimney Cap & Fireplace Spark Arrester Screen (NFPA 211 / IRC R1003.9) and our team will respond within one business day. Click "Request this configuration" on the drawing above to send the parameters you just chose straight into this form.

Request a Quotation

Specification
Business Information

Dimensions & Specifications (NFPA 211 / IRC R1003.9)

Every row below is a starting point for the customizer above — pick any specification row and the drawing will redraw to it.

Mesh countWire diameter (mm)Aperture (mm)Micron rating (u00b5m)Open area (%)Material
3-Mesh1.0007.470747077.8SS304

Chimney Cap & Fireplace Spark Arrester Screen (NFPA 211 / IRC R1003.9) is used for stopping burning embers from leaving the chimney and keeping birds and animals out, while letting flue gas draw freely.

Made by: Woven Wire Mesh (Weaving) · Wire Crimping & Heavy Weaving · Deep Drawing, Stamping & Forming · Surface Finishing & Coating

Where Chimney Cap & Fireplace Spark Arrester Screen Is Used

  • Chimney sweeps & installers: spark screens fitted to new and existing chimney caps.
  • Wildfire-prone regions: mandatory spark arresters on wood-burning chimneys.
  • Stove & fireplace makers: screens supplied with cap kits.
  • Outdoor fire pits & pizza ovens: spark screens on flues and lids.

Read the full application guide for Chimney Cap & Fireplace Spark Arrester Screen →

How to Specify Chimney Cap & Fireplace Spark Arrester Screen

  • Opening size: Many codes require openings no larger than 1/2 in (12.7 mm) and no smaller than 3/8 in so the screen does not clog with soot.
  • Wire & alloy: SS304 or SS316 heavy wire survives flue heat and creosote; galvanized corrodes quickly.
  • Screen area: Free area of the screen should be at least four times the flue area so draft is not restricted.

Materials

Standard supply is stainless steel 304, stainless steel 316/316L; the material column in the table and the drawing options show the exact grade for each size. Other alloys and finishes can be quoted to your drawing.

Fitting & Care

  • Inspect the screen at every sweep; creosote glaze can close openings and choke the draft.
  • Fit the cap with stainless fasteners so it can be removed for sweeping.

Common Mistakes

  • Choosing insect-fine mesh, which blocks with soot and causes smoke spillage indoors.
  • Using galvanized screen on a wood stove, which scales and fails within a few seasons.

When Chimney Cap & Fireplace Spark Arrester Screen Is Not the Right Choice

Not a flue liner or rain cap substitute, and not designed for high-temperature industrial stacks.

Related Mesh Products

Pricing

Chimney Cap & Fireplace Spark Arrester Screen is stocked and supplied to order in rolls, cut sheets and fabricated pieces. Pricing starts from approximately US$6.00 per unit for standard specifications in stainless steel 304; final pricing depends on specification, alloy, quantity and fabrication (MOQ applies). Submit your exact configuration with the quote form above.

Frequently Asked Questions

What is Chimney Cap & Fireplace Spark Arrester Screen used for?

Stopping burning embers from leaving the chimney and keeping birds and animals out, while letting flue gas draw freely.

What mesh size should a chimney spark arrester be?

Openings between 3/8 and 1/2 in are typical — fine enough to stop embers, coarse enough not to clog with soot.

Is a spark arrester required on my chimney?

Many jurisdictions require one, especially in wildfire areas; check the local fire code.

Why is smoke coming back into the room?

A soot-blocked spark screen is a common cause; clean it and check the opening size.

Which specifications of Chimney Cap & Fireplace Spark Arrester Screen does custommetalfilters.com supply?

The table on this page lists 3 standard specifications for Chimney Cap & Fireplace Spark Arrester Screen, from 2-Mesh to 4-Mesh. Specifications outside the table — custom mesh counts, wire diameters, roll widths and fabricated pieces — can be quoted on request.

How do I request a quotation?

Use the parametric drawing on this page to set the exact configuration (specification, material, treatment) and click "Request this configuration" — a specialist from custommetalfilters.com will respond within one business day.