Kerosene Heater Wick Replacement Chart — Guide & Tips

A kerosene heater wick replacement chart matches your heater brand and model to the exact wick part number, diameter, and height so you order the correct part on the first try. Replace wicks every 1,000 to 1,500 burning hours — roughly one to two heating seasons. Perform a dry-burn every 3 to 4 weeks to remove tar buildup. Drain and clean the fuel tank at the end of each season. Use only 1-K grade kerosene, and discard fuel older than two years. This guide covers cross-reference charts, step-by-step replacement, troubleshooting, and storage preparation.

What Is a Kerosene Heater Wick Replacement Chart and Why Do You Need One?

A kerosene heater wick replacement chart is a cross-reference table that maps heater brand, model number, wick part number, and wick diameter into a single scannable resource. Using the wrong wick diameter causes incomplete combustion, excessive smoke, or fire hazard.

How Does a Cross-Reference Chart Prevent Ordering the Wrong Wick?

Wick diameters range from 2-7/8 inches to 4-1/2 inches depending on the heater model. A wick that is 1/4 inch too narrow sits loosely in the carrier, drops below the combustion chamber rim, and starves the flame of fuel. A wick that is 1/4 inch too wide binds in the carrier and prevents the shut-off mechanism from lowering it.

Matching by model number eliminates guesswork. Locate the model number on the rating plate — typically stamped on the rear panel or inside the battery compartment door. Record the full alphanumeric string before consulting the chart.

What Information Do You Need from Your Heater Before Consulting the Chart?

• Brand name printed on the front housing or rating plate
• Full model number (example format: RMC-95C, CV-2230, KW-24G)
• Wick type — flat or cylindrical — visible when the burn chamber is removed
• Current wick part number, if printed on the old wick's packaging or metal tab

Skipping model verification leads to returns and downtime. An incorrectly sized wick installed into a heater causes carbon monoxide elevation within 20 minutes of operation due to incomplete combustion.

Shop Commercial Heater for This Job

These 10 picks from our commercial heater range cover the equipment this job calls for. Check each product's specs against your machine and job before ordering. Browse all commercial heater.

Electric Infrared Heater | 1500W | 5120 BTU | 120V Corded | Quartz Technology | Fostoria$614Electric Infrared Heater for Industrial Heating | 3000W | 208V | 10,239 BTU | Fostoria$723Portable Electric Salamander Commercial Heater | 9KW 240V | 30,717 BTU/hr | Fan-Forced | Fostoria$2,758Portable Electric Salamander Heater | 10KW | 240V Single Phase | 34,130 BTU | Fostoria$2,758Portable Electric Salamander Heater | 30KW | 480V 3-Phase | 102,390 BTU/hr | Fostoria$4,568Portable Electric Salamander Heater | 15KW | 240V 3-Phase | 51,195 BTU/Hour | Fostoria$2,898Industrial Portable Electric Salamander Heater | 15KW | 480V 3-Phase | 51,185 BTU | Fostoria$2,898Portable Electric Salamander Heater | 15KW | 208V 3P | 51,195 BTU/hr | Fostoria$2,898Portable Quartz Heater | 5,120 BTU | 120V Corded | Fostoria$971Portable Radiant Heater for Construction Equipment | 12K BTU | Propane | Cordless | 1,700 sq ft | DEWALT$298

Which Replacement Wick Fits Your Kerosene Heater — a Complete Wick Replacement Chart?

The tables below organize the most commonly cross-referenced wick part numbers by brand family and wick diameter. Verify your model number against the chart, then confirm the wick diameter matches your existing wick carrier.

What Are the Wick Part Numbers for Convection-Style Models?

• Models CV-2230, CV-23K — Wick part number 28065, diameter 2-7/8 inches
• Models KW-24G, KW-11F — Wick part number 28044, diameter 3-1/4 inches
• Models RMC-95C, RMC-55R — Wick part number 28043, diameter 4-1/2 inches
• Models CTN-110, RC-95C — Wick part number 28065, diameter 2-7/8 inches

Part number 28065 is the single most common replacement wick across convection heaters rated between 10,000 and 23,000 BTU. Confirm diameter with a tape measure across the wick carrier opening before ordering.

What Are the Wick Part Numbers for Radiant-Style Models?

• Models RMC-55R, RMC-65R — Wick part number WAP-6A equivalent, diameter 3-1/4 inches
• Models RCA-87, HMN-110 — Wick part number 28033, diameter 4-1/2 inches
• Models OHC-45A, TR-77 — Wick part number WAP-6A equivalent, diameter 3-1/4 inches
• Models SL-50, NR-50 — Wick part number 28011, diameter 2-7/8 inches

WAP-6A equivalent wicks fit multiple radiant heater families. Radiant models concentrate heat directionally, so a wick trimmed even 1/8 inch too short produces an uneven flame pattern visible within the first 5 minutes of operation.

What Are the Wick Part Numbers for Portable and Compact Models?

• Models KS-7600, KSP-200 — Wick part number 28029, diameter 2-7/8 inches
• Models DC-100, DC-200 — Wick part number 28035, diameter 3-1/4 inches
• Models A-100, A-200 series — Wick part number 28022, diameter 4-1/2 inches

Compact models use shorter wick heights — typically 4 to 5 inches compared to 6 to 8 inches in full-size units. Installing a full-height wick in a compact carrier forces the wick above the burn ring and produces visible flame tips above the chimney.

How Long Do Kerosene Heater Wicks Last and When Do You Replace Them?

Kerosene heater wick lifespan depends on 3 primary factors — fuel grade, burn frequency, and dry-burn maintenance habits. Neglecting any one factor cuts expected life by 30 to 50 percent.

What Factors Determine How Long a Kerosene Heater Wick Lasts?

A wick burning 1-K grade kerosene with a dry-burn performed every 3 to 4 weeks lasts 1,000 to 1,500 hours. Switching to 2-K grade kerosene accelerates tar and sulfur deposits, reducing wick life to 500 to 800 hours. Operating without dry-burns causes carbon crust to harden across the wick top within 60 to 80 hours of use.

• 1-K grade fuel: 1,000 to 1,500 burning hours before replacement
• 2-K grade fuel: 500 to 800 burning hours before replacement
• No dry-burn maintenance: reduces any wick life by 30 percent or more

What Are the Warning Signs That Your Wick Requires Changing?

Replace the wick when any of these conditions appear: the wick no longer rises above the burn ring even at maximum height setting, the flame produces visible black smoke within 10 minutes of lighting, or a strong kerosene odor persists after 15 minutes of stable operation.

• Wick top is charred, rigid, and does not absorb fuel when lowered into a full tank for 60 minutes
• Flame height is uneven — more than 1/4 inch variation across the circumference
• Heater produces soot deposits on walls or ceilings within 2 hours of operation
• Dry-burn no longer restores a clean orange-blue flame color

Operating with a degraded wick increases carbon monoxide output measurably. A CO detector within 10 feet of the heater reading above 9 ppm during steady-state operation indicates incomplete combustion from a spent wick.

How Do You Replace a Kerosene Heater Wick Step by Step?

Wick replacement takes 20 to 30 minutes with basic hand tools and a clean workspace. Allow the heater to cool completely — a minimum of 2 hours after the last burn cycle — before disassembly.

What Tools and Preparation Do You Need Before Starting?

• Phillips-head screwdriver — for removing the burn chamber retaining screws
• Flat-blade screwdriver — for prying wick retainer clips
• Needle-nose pliers — for seating the wick pins into the carrier slots
• Clean lint-free cloth — for wiping the wick carrier free of tar residue
• Newspaper or drop cloth — to contain residual kerosene drips

Drain the fuel tank to below 1/4 inch depth using a siphon pump before beginning disassembly. Residual fuel above this level spills when the tank is tilted during wick carrier removal.

What Is the Correct Wick Installation and Burn-In Procedure?

1. Remove the chimney and burn chamber. Unscrew the 2 to 4 retaining screws and lift the assembly straight up.
2. Lower the wick adjuster knob fully. Turn the knob counterclockwise until the old wick drops to its lowest position.
3. Remove the old wick. Unclip or slide the wick from the carrier teeth. Note the direction of the wick weave — the new wick installs in the same orientation.
4. Clean the wick carrier. Wipe all tar and carbon deposits from the carrier teeth and guide channel with a lint-free cloth dampened with fresh kerosene.
5. Install the new wick. Align the wick pins with the carrier slots. Press each pin fully into its corresponding slot until the wick sits flat and centered.
6. Soak the new wick for 60 minutes. Fill the tank with fresh 1-K kerosene and allow the wick to absorb fuel for a full 60 minutes before the first light.
7. Burn in the wick outdoors or in a ventilated space for 20 minutes. Light the wick at medium height. Expect light smoke and mild odor during the first burn-in — this dissipates after 15 to 20 minutes.

What Mistakes Do You Avoid During Wick Replacement?

• Installing the wick dry — a wick lit without a 60-minute soak burns unevenly and hardens at the top within the first 10 minutes
• Forcing the wick into the carrier at an angle — misaligned wicks bind the shut-off mechanism and prevent emergency lowering
• Trimming the wick with scissors — uneven cutting creates flame hot spots and accelerates localized carbon buildup within 3 to 5 hours
• Reusing old fuel from the previous season — degraded kerosene clogs a new wick within 40 to 60 hours of operation

Shop Commercial Gas Heater for This Job

These 10 picks from our commercial gas heater range cover the equipment this job calls for. Check each product's specs against your machine and job before ordering. Browse all commercial gas heater.

Portable Radiant Heater for Job Site | 45,000 BTU/hr | Propane Powered | 900 sq ft Coverage | DEWALT$349Portable Propane Forced Air Heater | Space Heater | 125K-170K BTU | Quiet Burner Technology | 4,000 Sq Ft Coverage | DEWALT$656Portable Space Heater | Commercial Forced Air Heater | 125K BTU | Propane | Quiet Burner Technology | DEWALT$471Portable Forced Air Heater | Space Heater | 110K-150K BTU | Propane | Quiet Burner Technology | DEWALT$527Portable Forced Air Heater for Construction Sites | Space Heater for Job Sites | 215K BTU | Kerosene Diesel Fuel | 6500 Sq Ft Coverage | DEWALT$934Forced Air Heater for Construction Sites | Space Heater for Job Sites | 40,000 BTU | Propane | 800 sq ft Coverage | DEWALT$249Forced Air Heater | Space Heater for Job Sites | 35K-65K BTU | Propane | Quiet Burner Technology | DEWALT$334Portable Space Heater | Cordless Forced Air Heater | 27K-68K BTU | Propane Powered | Battery Operation | DEWALT$378DEWALT Forced Air Heater | Space Heater for Job Sites | 50K BTU | Kerosene Diesel Fuel | Cold Weather Operation | 1,200 Sq Ft | DEWALT$447Portable DEWALT Forced Air Heater| Space Heater | 75K BTU | 1750 sq ft | Kerosene Diesel | DEWALT$512

Why Is Your Kerosene Heater Still Not Working After a Wick Change?

Post-replacement malfunctions trace back to 3 common causes — improper wick seating, mechanical linkage issues, or contaminated fuel. Each cause produces a distinct symptom identifiable within the first operating cycle.

Why Is Your Kerosene Heater Not Shutting Off After Replacing the Wick?

A heater that does not shut off has a wick seated too tightly in the carrier or a shut-off lever that is bent or binding against the frame. Inspect the shut-off lever travel — it moves the wick carrier down a minimum of 1/2 inch when fully engaged. A bent lever reduces travel to 1/8 inch or less, leaving the wick exposed above the burn ring.

A worn igniter spring also causes incomplete shut-off. Measure the spring free length — replace the spring when compressed length exceeds 60 percent of its original free length. A spring with less than 40 percent rebound force fails to retract the wick carrier fully.

Is Old Kerosene Still Safe to Use, and Does Bad Fuel Cause Wick Problems?

Kerosene older than 2 years develops gums and varnish that coat the wick fibers, block capillary fuel flow, and cause hard starting, smoking, and persistent odor. Fuel stored for 10 years is unusable — dispose of it at a local hazardous waste facility.

Fresh 1-K kerosene is water-clear with no yellow tint. Fuel that appears yellow, cloudy, or has visible sediment in the bottom 1/2 inch of the container has degraded. Add fuel stabilizer at a ratio of 1 ounce per 5 gallons at the time of purchase to extend shelf life to 24 months.

What Accessories and Equipment Keep Your Kerosene Heater Running Longer?

Routine maintenance accessories extend both wick life and overall heater service life by 30 percent or more when used on the schedules specified below.

Which Maintenance Accessories Extend Wick and Heater Life?

• Replacement wicks — keep 1 spare wick on hand per heater to eliminate mid-season downtime
• Fuel stabilizer — add 1 ounce per 5 gallons at time of purchase to prevent gum formation for up to 24 months
• Siphon pump — use to drain the fuel tank at season end, removing all fuel to below 1/8 inch depth
• Battery-powered CO detector — mount within 10 feet of the heater, replace batteries every 6 months

When Do You Upgrade to a Commercial-Grade Heating Solution?

A residential kerosene heater reaches its limits at 23,000 BTU — insufficient for spaces larger than 1,000 square feet or for continuous operation exceeding 10 hours per day on a job site. For job sites, warehouses, or large workshops where a residential kerosene heater cannot keep up, browse our Commercial Heater collection for units built for continuous heavy-duty operation.

If recurring wick maintenance costs downtime every 3 to 4 weeks, a Commercial Gas Heater eliminates wick replacement entirely and delivers reliable heat for demanding commercial environments.

Frequently Asked Questions About Kerosene Heater Wick Replacement

Common kerosene heater wick questions cover replacement timing, fuel consumption, cleaning versus replacing, wick compatibility, and disposal. The answers below resolve each topic with specific numbers and procedures.

When Do You Change a Kerosene Heater Wick?

Replace the wick every 1,000 to 1,500 burning hours or every 1 to 2 heating seasons, whichever comes first. Replace sooner if the wick top is charred rigid, the flame smokes within 10 minutes of lighting, a persistent odor continues after 15 minutes, or a dry-burn no longer restores clean combustion.

Operating beyond these thresholds causes incomplete combustion that deposits soot on interior surfaces within 2 hours and raises carbon monoxide readings above safe residential levels of 9 ppm. Track burning hours by noting daily run time on a log sheet attached to the heater.

How Long Does 5 Gallons of Kerosene Last in a Kerosene Heater?

Five gallons of 1-K kerosene lasts 20 to 45 hours of continuous operation depending on heater BTU rating. An 8,000 BTU portable model consumes approximately 0.11 gallons per hour — yielding 45 hours. A 23,000 BTU convection model consumes approximately 0.25 gallons per hour — yielding 20 hours.

Calculate your consumption rate by dividing the tank capacity in gallons by the manufacturer's rated burn time. Refuel when the tank gauge reads 1/4 full — running the tank dry exposes the wick to air, accelerating carbon buildup at the wick top within 15 minutes of dry operation.

Can You Clean a Kerosene Heater Wick Instead of Replacing It?

A dry-burn performed every 3 to 4 weeks removes soft tar and carbon deposits and restores wick performance for continued use. Light the heater and allow it to burn until the fuel tank is completely empty and the flame self-extinguishes. This process takes 45 to 90 minutes depending on remaining fuel volume.

Dry-burning extends wick life by 30 percent or more. A wick that no longer produces a clean flame after a dry-burn has hardened carbon that penetrates below the fiber surface — replacement is the only remedy at that point.

Are Kerosene Heater Wicks Universal or Brand-Specific?

Kerosene heater wicks are not universal. Each wick is manufactured to a specific diameter (2-7/8, 3-1/4, or 4-1/2 inches), height (4 to 8 inches), and pin configuration that matches a defined set of heater models. Some part numbers cross-reference across multiple brands — for example, part number 28065 fits several convection models from different manufacturers.

Always verify the wick part number against your heater model number using a cross-reference chart before purchasing. A wick that is the correct diameter but wrong height sits too high or too low in the burn chamber, producing flame irregularities within the first 5 minutes of operation.

How Do You Dispose of an Old Kerosene Heater Wick Safely?

Allow the old wick to air-dry outdoors for 48 hours before disposal. A fuel-saturated wick placed directly into household trash creates a fire hazard — kerosene vapor flash point is 100°F (38°C). After 48 hours of air-drying, the wick is safe for standard solid waste disposal in most municipalities.

Check local regulations — some jurisdictions classify kerosene-soaked materials as household hazardous waste. Seal the dried wick in a zip-top plastic bag and label it as "used kerosene wick" before placing it in the appropriate waste stream.