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Description
52W29 Furnace Flame Sensor Replacement - For Lennox Armstrong & Ducane Furnaces52W29 Furnace Flame Sensor Key Features Monitors burner flame to ensure safe furnace operation. Direct replacement for the original manufacturer's part. Overall length: 5. 25 inches. Sensing rod length: 2. 75 inches. Constructed with a high temperature resistant metal rod and ceramic insulator. Replaces Cross Reference Part Numbers 52W29 52W2901 31L71 31L7101 LB 74940A 28PV41 903600 FLS52W29 Compatibility & Fitment Fits specific gas furnace models
52W29 Furnace Flame Sensor
Key Features
- Monitors burner flame to ensure safe furnace operation.
- Direct replacement for the original manufacturer's part.
- Overall length: 5.25 inches.
- Sensing rod length: 2.75 inches.
- Constructed with a high-temperature resistant metal rod and ceramic insulator.
Replaces / Cross-Reference Part Numbers
- 52W29
- 52W2901
- 31L71
- 31L7101
- LB-74940A
- 28PV41
- 903600
- FLS52W29
Compatibility & Fitment
- Fits specific gas furnace models from Lennox, Armstrong, and Ducane.
- Compatible with furnace series including G40, G41, G50, G51, G60, G61, and G71.
When to Replace
- Furnace ignites but shuts down after a few seconds.
- Furnace fails to heat consistently or at all.
- The sensor rod is visibly corroded, cracked, or has heavy carbon buildup that cannot be cleaned.
Installation Tips
- Disconnect all electrical power to the furnace before servicing.
- Handle the component by its metal bracket to avoid damaging the ceramic insulator.
- Ensure the sensor rod is properly positioned in the flame path for correct operation.
- Verify a secure wire connection before restoring power.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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★★★★★ 5
Amazing for sensitive babies
This lotion is amazing!! My baby girl has extremely sensitive skin nothing worked for her and other well known brands kept creating irritation for her. Her pediatrician recommended this brand and it truly soothes her skin with no irritation, moistures beautifully all day long and has a light refreshing scent! It’s a must have for babies that are extra sensitive! Pairs well with the body wash as well.
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Reviewed in the United States on April 24, 2026
★★★★★ 5
The best foundation!
Style: Refill, Color: Golden Glow, Style: Refill, Color: Golden Glow
I recently tried the Jane Iredale makeup powder foundation and I have to say, it's absolutely amazing! This foundation has quickly become my go-to for achieving a flawless and natural-looking complexion.
One of the things I love about this powder foundation is its lightweight. It feels very light on the skin and allows it to breathe, which is perfect for those who prefer a more natural and comfortable makeup look. It doesn't feel heavy or cakey at all, even after hours of wear.
The coverage of this foundation is also impressive. It provides just the right amount of coverage to even out my skin tone and conceal any imperfections, while still allowing my skin to look like skin. It doesn't settle into fine lines or emphasize dry patches, giving me a smooth and radiant finish.
Another great feature of this foundation is its long-lasting power. It stays put throughout the day, even in humid weather or during physical activities. I don't have to worry about it melting off or fading, which is a huge plus for me.
I use the Jane D2O spray prior to putting on the powder and a final spritz after applying to set.
I also appreciate the fact that Jane Iredale powder foundation is made with high-quality and skin-friendly ingredients. It is free from harsh chemicals and irritants, making it suitable for sensitive skin types. It gives me peace of mind knowing that I'm not compromising the health of my skin while wearing it.
Overall, I feel Jane Iredale foundation is a game-changer. I highly recommend it to anyone!
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Reviewed in the United States on March 7, 2024
★★★★★ 5
The best foundation!!!
Style: Refill, Color: Golden Glow
10/10 powder foundation. If you’re on the fence, just do it. I have used this product since 2014 and haven’t ever bothered to try and find anything better. There’s simply no need. I’ve used the color Golden Glow almost every time, and it has always managed to match my skin throughout all the seasons. It is lightweight but full coverage. It’s magic. I mostly wear this on its own, with just moisturizer as a base. It’s so easy to apply with a large brush, and run out the door feeling like you have a full face of makeup on. It does pair beautifully with my liquid foundation for when I’m looking for maximum coverage. The price point is fair in my opinion. Each refill last me about 6 months. You do have to purchase the compact case which is an addition $25 but that’s a one time fee. I have never been happier or purchased a skincare product more frequently than this one. You seriously won’t regret it.
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Reviewed in the United States on January 13, 2026
★★★★★ 5
Flawless Full Coverage
Style: Refill, Color: Warm Silk
My absolute FAVORITE foundation for anyone with extremely oily skin. Honestly, this foundation is great for all skin types. The clean ingredients are a huge plus. I have tried every oil control makeup combination possible over the past two plus decades that I’ve worn makeup. I can’t get over how amazingly flawless and silky smooth this product makes my skin look. It’s lightweight yet 100% full coverage foundation. I live in the most humid climate possible and appreciate the fact that I’m not having to reapply more powder anytime I step outside for more than five minutes. After using this powder for the last few years I realized that I needed to make a change in my products and have slowly started purchasing more and more Jane Iredale products. I cannot recommend this powder foundation enough for anyone who has oily skin and wants a full coverage foundation that looks and feels natural!!!
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Reviewed in the United States on October 11, 2025
★★★★★ 5
Simplicity
Style: Refill, Color: Golden Glow, Style: Refill, Color: Golden Glow
All time favorite powder of 15 years 🫶 doesn't clog pores, stays on well all day, and is smooth to apply. A little goes a long way with a moisturizer and toner. Hope to see the pad applicators included in the refills in the near future, I used a teardrop sponge that worked great to cover pores and even tone. I didn't cover my cheek bones to allow natural pigment. Thanks for the wonderful quality over the years 🤗
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Reviewed in the United States on April 13, 2026