--- product_id: 147296514 title: "Hayward Pool Heater for Inground Pools Universal H-Series 400,000 BTU (Propane Gas Pool Heater) Pool and Spa Heater W3H400FDP Replacement for H400FDP" brand: "hayward" price: "VT2368535" currency: VUV in_stock: true url: https://www.desertcart.vu/products/147296514-hayward-pool-heater-for-inground-pools-universal-h-series-400 store_origin: VU region: Vanuatu --- # Eco-friendly Corrosion-resistant 400,000 BTU Power Hayward Pool Heater for Inground Pools Universal H-Series 400,000 BTU (Propane Gas Pool Heater) Pool and Spa Heater W3H400FDP Replacement for H400FDP **Brand:** hayward **Price:** VT2368535 **Availability:** ✅ In Stock ## Summary > 🌊 Dive into Comfort with Hayward's Premium Heating! ## Quick Answers - **What is this?** Hayward Pool Heater for Inground Pools Universal H-Series 400,000 BTU (Propane Gas Pool Heater) Pool and Spa Heater W3H400FDP Replacement for H400FDP by hayward - **How much does it cost?** VT2368535 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/147296514-hayward-pool-heater-for-inground-pools-universal-h-series-400) ## Best For - hayward enthusiasts ## Why This Product - Trusted hayward brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable Design:** Cupro nickel heat exchanger ensures longevity and resists corrosion, even in challenging water conditions. - • **User-Friendly Operation:** Front-panel access and an intuitive control pad make operation and maintenance a breeze. - • **Energy-Saving Innovation:** Industry-leading hydraulic design minimizes pump run time, slashing your energy bills. - • **Eco-Conscious Performance:** Low NOx emissions meet stringent air quality standards, making it a responsible choice for your backyard. - • **Unmatched Heating Efficiency:** Experience rapid warmth with 400,000 BTUs, perfect for any pool or spa. ## Overview The Hayward W3H400FDP Universal H-Series Propane Heater is engineered for in-ground pools and spas, delivering 400,000 BTUs of heating power. Its durable cupro nickel heat exchanger resists corrosion, while its innovative hydraulic design promotes energy efficiency. With easy access and low emissions, this heater is the perfect blend of performance and environmental responsibility. ## Description Hayward W3H400FDP Universal H-Series 400,000 BTU Propane Pool and Spa Heater for In-Ground Pools and Spas ## Features - The Hayward Universal H-Series 400,000 BTU Propane Heater delivers premium heating performance for years of reliable, long-lasting comfort - A durable cupro nickel heat exchanger offers exceptional protection against corrosion and premature failure caused by unbalanced water chemistry - Industry-leading hydraulic design reduces circulation pump run time to provide major energy savings - Front-panel-only access and intuitive control pad provide easy operation, service and maintenance - Low NOx emissions meet air quality standards in all low-NOx areas, ensuring low environmental impact ## Images ![Hayward Pool Heater for Inground Pools Universal H-Series 400,000 BTU (Propane Gas Pool Heater) Pool and Spa Heater W3H400FDP Replacement for H400FDP - Image 1](https://m.media-amazon.com/images/I/61HANADWcVL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Does this heater come with any warranties?** A: Theoretically, yes, BUT getting Hayward to honor them is very, very, VERY nearly impossible. Had I not bought from a retailer where I was able to reach a live person who then went to bat for me, I would have been left with Hayward shrugging and saying they had no warranty providers in my STATE. Seriously. (I have to say that, had I known then what I know now about Hayward propane heaters, I would have stayed with my prior electric pool heater and spent the money switching over my hot water heater to gas instead.) **Q: Is it worth the time and money to rebuild my 10 year old h250ped2 or buy a new one?** A: Buy a new one. They are so much more efficient. I worked on my old pool heater until it caught fire. The new one is so much safer and problem free. **Q: How long would the 150,000 BTU take to heat only our attached hot tub?** A: We heat our pool which is 26,000 gallons 1-2 degrees and hour. We are very happy with it! **Q: What is the Energy Star Rating for this pool heater?** A: Performed perfectly ## Frequently Bought Together - Hayward W3H400FDP Universal H-Series 400,000 BTU Propane Pool and Spa Heater for In-Ground Pools and Spas - 2 PACK -CMP Hi-Temp Union 2" inch 2MIP x 2" inch PVC Whisperflo & Intelliflo - 2 PACK - Hayward SPX3200UNKIT Union Connector Replacement Kit for Select Hayward Pump and Heater --- ## 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.vu/products/147296514-hayward-pool-heater-for-inground-pools-universal-h-series-400](https://www.desertcart.vu/products/147296514-hayward-pool-heater-for-inground-pools-universal-h-series-400) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-10*