--- product_id: 62541931 title: "Harman 3-21-08639 Combustion Blower Exhaust Fan Motor Upgrade Fits Pellet Stoves P43 P61 P68 XXV Accentra 52I Advance P35I PC45 PF100 PF120 BA100 BH105 Replaces Part 3-21-08415" brand: "pellethead" price: "544.47 DT" currency: TND in_stock: true reviews_count: 13 category: "Pellethead" url: https://www.desertcart.tn/products/62541931-harman-3-21-08639-combustion-blower-exhaust-fan-motor-upgrade store_origin: TN region: Tunisia --- # 120V AC, 0.95 Amps power efficient 3000 RPM high-speed motor Fits 15+ Harman pellet stove models Harman 3-21-08639 Combustion Blower Exhaust Fan Motor Upgrade Fits Pellet Stoves P43 P61 P68 XXV Accentra 52I Advance P35I PC45 PF100 PF120 BA100 BH105 Replaces Part 3-21-08415 **Brand:** pellethead **Price:** 544.47 DT **Availability:** ✅ In Stock ## Summary > 🔥 Upgrade your pellet stove game with silent power and effortless fit! ⚙️ ## Quick Answers - **What is this?** Harman 3-21-08639 Combustion Blower Exhaust Fan Motor Upgrade Fits Pellet Stoves P43 P61 P68 XXV Accentra 52I Advance P35I PC45 PF100 PF120 BA100 BH105 Replaces Part 3-21-08415 by pellethead - **How much does it cost?** 544.47 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/62541931-harman-3-21-08639-combustion-blower-exhaust-fan-motor-upgrade) ## Best For - pellethead enthusiasts ## Why This Product - Trusted pellethead brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable Metal Build:** Crafted from premium metal for long-lasting reliability and superior heat resistance. - • **Universal Compatibility:** Seamlessly fits a wide range of Harman pellet stoves and coal boilers for versatile use. - • **Plug & Play Installation:** Includes crimp connectors and fan blade for a hassle-free, under-10-minute upgrade. - • **Industry-Leading Warranty:** Backed by a 2-year no-hassle warranty, ensuring peace of mind with every purchase. - • **Whisper-Quiet Performance:** Operates as quietly as a ceiling fan, eliminating distracting noise during cozy nights. ## Overview The Harman 3-21-08639 Combustion Blower Exhaust Fan Motor Upgrade is a high-speed, 3000 RPM motor designed to fit over 15 Harman pellet stove and coal boiler models. Operating quietly at 120V AC and 0.95 amps, it includes a 4 3/4" fan blade and crimp connectors for easy installation. Built with durable metal and backed by a 2-year warranty, this upgrade transforms your stove’s performance with reliable, whisper-quiet airflow. ## Description Buy Harman 3-21-08639 Combustion Blower Exhaust Fan Motor Upgrade Fits Pellet Stoves P43 P61 P68 XXV Accentra 52I Advance P35I PC45 PF100 PF120 BA100 BH105 Replaces Part 3-21-08415: Fireplace Fans - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Completely transformed my pellet stove experience! - I bought my first pellet stove, a used Harman P43, last winter. I couldn’t be happier with it, however starting it for the first time this season I could tell something wasn’t right. It was making a metallic grinding sound. After some research I came to the conclusion it was the fan and bought this replacement. I am blown away, It’s so quite I actually thought I might have installed it wrong. Seriously I was just expecting to get it back to the sound level it was at last winter. But this far exceeded my expectations. It’s no louder than a ceiling fan! Additional insight: Delivery was quick and it came packaged nicely. Installation was extremely easy once I got the old fan out. A helpful tip if you are replacing the original fan, the set screw holding the old blade on the inside will most likely strip. Save yourself the headache and cut the shaft with a sawzall from the back of the stove. If I had done that from the start installation would have been 10 minutes. Build quality seems to be excellent. However I just installed it so I can’t speak on longevity quite yet. Value is 10/10. Worth every penny! Wire length is more than enough and the even include the crimp connector so all you have to do is cut the wire off the old blower motor, crimp the connector onto the wires and plug them in, couldn’t be easier! Review: Works good. It looks different than the motor that came out of my stove - I bought this for my older Harman Advance pellet stove. It doesn’t look the same so I was reluctant but the part number matched. So I bought it. It fits and works perfect. It’s nice and quiet again. I added a picture of the old motor in case anyone has the same concerns as I did. ## Features - Fits Harman Models: Accentra 52I Accentra FS (Accentra Cast) Accentra Insert Advance HydroFlex 60 (HF60) Boiler P35I Insert P38 (P38+, PP38+) P43 P61 P61A P68 PB105 Boiler PC45 PF100 Furnace PF120 Furnace - Fits Harman Coal DVC 500, Fits Heatilator Pellet BA100 BH105 BH60 BIO-120 - 120V AC, 60Hz, .95 Amps, 3000 RPM, Clockwise Rotation, Terminal End Connectors. - Includes 4 3/4" Fan Paddle - 2 Year Industry Leading Warranty - No Hassles ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B076GS331L | | Best Sellers Rank | #1,168,328 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #145 in Fireplace Fans #515 in Fireplace Replacement Parts | | Brand | Pellethead | | Brand Name | Pellethead | | Customer Reviews | 4.4 out of 5 stars 397 Reviews | | Included Components | Motor + 4 3/4 Fan Blade | | Manufacturer | Harmon | | Material | Metal | | Material Type | Metal | | Model | 3-21-08639 | | Number of Items | 1 | | Part Number | 3-21-08639 | | Speed | 3000 RPM | | Voltage | 120 Volts | ## Product Details - **Brand:** Pellethead - **Manufacturer:** Harmon - **Speed:** 3000 RPM - **Voltage:** 120 Volts ## Images ![Harman 3-21-08639 Combustion Blower Exhaust Fan Motor Upgrade Fits Pellet Stoves P43 P61 P68 XXV Accentra 52I Advance P35I PC45 PF100 PF120 BA100 BH105 Replaces Part 3-21-08415 - Image 1](https://m.media-amazon.com/images/I/61Y1VbCWjJL.jpg) ## Questions & Answers **Q: does the motor come with the mounting bracket and paddle fan as shown in the picture?** A: no it does not. Usually the all in one combo set is not compatible. You could purchase separately the fan and bracket for cheap **Q: Will this motor fit Envirofire EF3 ?** A: Sorry, I do not know. I can say that the blower motor as viewed on line for your Envirofire EF3 looks to be different than the Harmon Combustion Fan that I purchased. My fan has only three bolts to secure it. Caution also in selecting the correct fan blade. They come in both single and double paddles. **Q: “It 100% fits an advance with a 1999 build date,Chain driven?”** A: Not sure , but I don’t think so , I have a Harmon Accentra 52i with direct shaft drive. **Q: Will this fit the free standing accentra 2 model** A: It fit my freestanding p61 ## Customer Reviews ### ⭐⭐⭐⭐⭐ Completely transformed my pellet stove experience! *by M***S on October 15, 2024* I bought my first pellet stove, a used Harman P43, last winter. I couldn’t be happier with it, however starting it for the first time this season I could tell something wasn’t right. It was making a metallic grinding sound. After some research I came to the conclusion it was the fan and bought this replacement. I am blown away, It’s so quite I actually thought I might have installed it wrong. Seriously I was just expecting to get it back to the sound level it was at last winter. But this far exceeded my expectations. It’s no louder than a ceiling fan! Additional insight: Delivery was quick and it came packaged nicely. Installation was extremely easy once I got the old fan out. A helpful tip if you are replacing the original fan, the set screw holding the old blade on the inside will most likely strip. Save yourself the headache and cut the shaft with a sawzall from the back of the stove. If I had done that from the start installation would have been 10 minutes. Build quality seems to be excellent. However I just installed it so I can’t speak on longevity quite yet. Value is 10/10. Worth every penny! Wire length is more than enough and the even include the crimp connector so all you have to do is cut the wire off the old blower motor, crimp the connector onto the wires and plug them in, couldn’t be easier! ### ⭐⭐⭐⭐⭐ Works good. It looks different than the motor that came out of my stove *by D***S on January 2, 2025* I bought this for my older Harman Advance pellet stove. It doesn’t look the same so I was reluctant but the part number matched. So I bought it. It fits and works perfect. It’s nice and quiet again. I added a picture of the old motor in case anyone has the same concerns as I did. ### ⭐⭐⭐⭐⭐ Worked perfect on my Harman P43 Pellet Stove *by E***A on January 13, 2023* Bought this to replace the original combustion motor on my 10 year old Harman P43 Pellet Stove after the bearings went bad. This new aftermarket motor has good reviews so I figured, for less than half the price of an OEM motor, I'd give it a try. So far I'm very pleased. It was easy to install, even though I had to clip the connectors off and splice it directly into the wires coming from the stove. It even came with the Fan Blade Impeller that attaches to the motor's shaft inside the ash pot compartment. The best part is it's super quiet. The only question is how long will it last? The original motor lasted 10 years of constant 24/7, seven days a week, use heating my NY home during the winter months. I'll settle for half that time. ## Frequently Bought Together - Harman 3-21-08639 Combustion Blower Exhaust Fan Motor Upgrade Fits Pellet Stoves P43 P61 P68 XXV Accentra 52I Advance P35I PC45 PF100 PF120 BA100 BH105 Replaces Part 3-21-08415 - 3-20-502221 - HARMAN Fireplace Fan Blade, 5" Double Paddle, Fits The Following Stoves P38, P61,P68, P43, XXV and More. - Harman Fireplace Fan Blade, 4 3/4-inch Combustion Paddle, High Heat Aluminum, Universal Motor Model 3-21-00661 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/62541931-harman-3-21-08639-combustion-blower-exhaust-fan-motor-upgrade](https://www.desertcart.tn/products/62541931-harman-3-21-08639-combustion-blower-exhaust-fan-motor-upgrade) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-24*