--- product_id: 274711621 title: "Heatilator Heatnglo Direct Vent Fireplace 27\" Thermocouple replaces Robertshaw 446-511" brand: "fixitshop" price: "20201CFA" currency: XOF in_stock: true reviews_count: 5 category: "Fixitshop" url: https://www.desertcart.sn/products/274711621-heatilator-heatnglo-direct-vent-fireplace-27-thermocouple-replaces-robertshaw-446 store_origin: SN region: Senegal --- # 27 kW heat output Fits Robertshaw & SIT 820 NOVA valves Built-in safety shut off Heatilator Heatnglo Direct Vent Fireplace 27" Thermocouple replaces Robertshaw 446-511 **Brand:** fixitshop **Price:** 20201CFA **Availability:** βœ… In Stock ## Summary > πŸ”₯ Upgrade your fireplace game with precision power and safety! ## Quick Answers - **What is this?** Heatilator Heatnglo Direct Vent Fireplace 27" Thermocouple replaces Robertshaw 446-511 by fixitshop - **How much does it cost?** 20201CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/274711621-heatilator-heatnglo-direct-vent-fireplace-27-thermocouple-replaces-robertshaw-446) ## Best For - fixitshop enthusiasts ## Why This Product - Trusted fixitshop brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Safety First:** Integrated safety shut off ensures peace of mind with every use - β€’ **Sleek Modern Design:** Compact 27-inch copper thermocouple with a stylish black finish fits perfectly in contemporary homes - β€’ **Powerful Heat Output:** Delivers a robust 27 kW to keep your living space cozy and inviting - β€’ **Precision Compatibility:** Seamlessly replaces Robertshaw 446-511 & select SIT 820 NOVA valves for hassle-free upgrades - β€’ **DIY Friendly Installation:** Lightweight 1.58 oz metal build designed for easy wall-mount setup, saving you costly service fees ## Overview The Heatilator Heatnglo 27" Thermocouple is a direct vent fireplace replacement part compatible with Robertshaw 446-511 and some SIT 820 NOVA gas valves. Delivering 27 kW heat output, it features a built-in safety shut off and a sleek black finish. Lightweight and easy to install, it’s designed for modern living rooms and ensures reliable, efficient fireplace operation. ## Description Thermocouple for Direct Vent Fireplaces FITS Heatilator & Heat-n-Glo Replacement Thermocouple for Direct Vent Fireplaces Replaces ( replacement for) Robertshaw 446-511 Fits Robertshaw & some SIT 820 NOVA Gas Valves with fine thread. works on many fireplaces part numbers 34820 446-511 72956 Review: It worked - Yes it worked. Just a tad overpriced.m Review: Works as described - I bought it so I didn’t have to pay a higher price from fireplace maintenance company. Works as described ## Features - Thermocouple for Direct Vent Fireplaces - Replaces ( replacement for) Robertshaw 446 511 - Fits Robertshaw & some SIT 820 NOVA Gas Valves with fine thread. - works on many fireplaces - part numbers 34820 446 511 72956 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01C890C1W | | Additional Features | Safety Shut Off | | Brand | Fixitshop | | Brand Name | Fixitshop | | Chamber Depth | 27 Inches | | Color | copper | | Customer Reviews | 4.4 out of 5 stars 317 Reviews | | Finish Types | Black | | Finish type | Black | | Heat Output | 27 Kilowatts | | Heat output | 27 Kilowatts | | Installation Type | Wall Mount | | Installation type | Wall Mount | | Item Weight | 1.58 Ounces | | Manufacturer | Fixitshop Corp. | | Manufacturer Part Number | 446-511 | | Material | Metal | | Material Type | Metal | | Model Name | 27" Thermocouple | | Model Number | 446-511 | | Power Source | Gas Powered | | Power source | Gas Powered | | Room Type | Living Room | | Specific Uses For Product | Indoor | | Style Name | Modern | | UPC | 045445923903 | | Unit Count | 1.0 Count | | Ventilation Type | Direct Vent | ## Product Details - **Brand:** Fixitshop - **Finish type:** Black - **Installation type:** Wall Mount - **Material:** Metal - **Power source:** Gas Powered ## Images ![Heatilator Heatnglo Direct Vent Fireplace 27" Thermocouple replaces Robertshaw 446-511 - Image 1](https://m.media-amazon.com/images/I/41Jo6Eg7ANL.jpg) ## Questions & Answers **Q: Does this fit the heat n glo fireplace model sl-750tv-d?** A: if your fireplace serial# is before 0021076242 ... then this will definitely fit. if your serial# is after ... then this will probably work just fine **Q: Will this fit a vanguard model gvc50na?** A: I have no idea, but my guess is - probably not. Your best bet is to dig out your owner's manual or go to the Vanguard website - and look-up the part/part # thermocouple for your fireplace, and then cross-reference that to the Amazon website. Good luck. **Q: Will this fit empire dvvk-3-fv innsbrook direct vent lp gas fireplace insert?** A: Without doing any research . . . I'm almost certain the answer is no. I've found that the interchangeability of these thermocouples is almost non-existent. Your best bet is to check your owner's manual for the part number (in the very back) and then cross-reference that part to Amazon or a similar after market supply source. **Q: Is this a 87D thermocouple for a Cozi furnace?** A: The answer to this question is best received from the manufacturer. ## Customer Reviews ### ⭐⭐⭐⭐⭐ It worked *by B***9 on 12 December 2019* Yes it worked. Just a tad overpriced.m ### ⭐⭐⭐⭐⭐ Works as described *by C***O on 14 December 2025* I bought it so I didn’t have to pay a higher price from fireplace maintenance company. Works as described ### ⭐⭐⭐⭐⭐ Perfect fit for Harman Shadow Light XL LP Gas Fireplace *by J***M on 16 February 2024* This thermocouple was a perfect fit for my Harman LP gas fireplace. The threads matched correctly at the thermocouple and gas valve ends. I gave 3 stars for installation because it's a finnicky job that takes a some patience, there isn't a fitment problem. Besides installing the thermocouple you have do disassemble quite a bit of the fireplace to make the replacement and there's tight quarters at the gas valve end. The fireplace is 18 years old, the first thermocouple lasted 14 years, the second one lasted 4. I hope this one is equal to the original! ## Frequently Bought Together - US Merchant Heatilator Heatnglo Direct Vent Fireplace 27" Thermocouple replaces Robertshaw 446-511 - Heat N Glo Thermocouple For Heat And Glo And Hearth & Home Fire Places - Heat & Glo Thermopile Part # 2103-512 SAME DAY SHIPPING --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/274711621-heatilator-heatnglo-direct-vent-fireplace-27-thermocouple-replaces-robertshaw-446](https://www.desertcart.sn/products/274711621-heatilator-heatnglo-direct-vent-fireplace-27-thermocouple-replaces-robertshaw-446) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-09-15*