--- product_id: 313514399 title: "SmartPool WWS421P Sunheater Solar Pool Heater for Above Ground Pools" brand: "sunheater" price: "28857047₫" currency: VND in_stock: true reviews_count: 7 category: "Sun Heater" url: https://www.desertcart.vn/products/313514399-smartpool-wws421p-sunheater-solar-pool-heater-for-above-ground-pools store_origin: VN region: Vietnam --- # Fits pools up to 80cm round or 45x91cm oval 80 sq.ft. solar panel coverage Uses existing pool filtration system SmartPool WWS421P Sunheater Solar Pool Heater for Above Ground Pools **Brand:** sunheater **Price:** 28857047₫ **Availability:** ✅ In Stock ## Summary > ☀️ Dive into longer, warmer swims with smart solar power! ## Quick Answers - **What is this?** SmartPool WWS421P Sunheater Solar Pool Heater for Above Ground Pools by sunheater - **How much does it cost?** 28857047₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/313514399-smartpool-wws421p-sunheater-solar-pool-heater-for-above-ground-pools) ## Best For - sunheater enthusiasts ## Why This Product - Trusted sunheater brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable Flex Design:** Tube-on-web panels flex with temperature changes for long-lasting, weather-resistant performance - • **Scalable Heat Power:** Connect multiple units to boost heating capacity and warm your pool faster - • **Eco-Friendly & Cost-Smart:** Harness free solar energy to slash heating bills and reduce your carbon footprint - • **Maximize Your Swim Season:** Extend your pool enjoyment by weeks with solar-heated water up to -9.4°C cooler temps - • **Plug & Play Solar Heating:** Easy installation using your current pump and included flex hose adapters—no extra tools needed ## Overview The SmartPool WWS421P Sunheater is a polypropylene solar pool heating system featuring two 80 sq.ft. panels designed for above ground pools up to 80cm round or 45x91cm oval. It integrates seamlessly with your existing filtration system to raise water temperature efficiently, extending your swimming season by weeks. Its flexible tube-on-web design ensures durability and easy installation with included plumbing fixtures, making it a cost-effective, eco-friendly upgrade for pool owners. ## Description " The SunHeater solar pool heating system allows you to capture free heat from the sun's rays to increase the temperature of your pool. It is an efficient and cost-effective way to heat your pool that can be used with or instead of your current heater to reduce your pool heating costs. This solar pool heating system contains two 20 x 22 feet (80 sq ft). Solar panels and is ideal for above ground pools up to 80 cm round or 45 x 91 cm oval. This effective solar pool heater uses your existing filter system to push the water through the panel's many tubes where it is heated by the sun and then returned to the pool. This system can raise the water temperature down to -9.4°C and extend your bathing season by weeks! SunHeater includes a system kit with flex hose adapters for easy pool installation for above ground pools. Made of durable polypropylene, you can trust this heater to keep working season after season. The SunHeater solar pool heating system pays off in just one or two season and will let you and your family enjoy your pool longer. Multiple SunHeater systems can be connected to each other to generate more heat in less time Review: . - It as shown in photos. Review: Dont waste your money - Second one now defective. This time im getting a refund instead of a replacement. Its cheaply made and not very strong. Neither one has heated up the pool either. ## Features - Solar Pool Heater - The SunHeater solar pool heating system allows you to capture the free heat from the sun's rays to effectively increase your pool water temperature. It is an efficient and cost-effective way to heat your above ground pool. - EXTENDS POOL SEASON - Your pool's pump pushes the water through the panel's many tubes where it warms up by the sun and then returns to the pool. This system can raise the water temperature down to -9.4°C and extend your bathing season by weeks! - EASY TO INSTALL - This solar pool heater uses your existing filtration system and comes with the necessary plumbing fixtures to connect with flex hoses to a rigid wall above the ground (hard line installations require additional parts not included). - HOSE ON WEB DESIGN - The tube-on-web design allows SunHeater to capture the largest possible sun, maximizing square shots. It provides rigid flexibility allowing the plates to expand and contract with changing temperatures, giving it the strength needed to last. - DIMENSIONS - This solar solar pool heating system includes two 2.4" x 20" panels (80 sq.ft). and is perfect for heating above ground pools up to 80cm round or 45cm x 91cm oval. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B004VU986W | | Best Sellers Rank | 192,929 in Garden ( See Top 100 in Garden ) 34 in Pool Heaters | | Customer Reviews | 3.6 3.6 out of 5 stars (293) | | Date First Available | 18 April 2013 | | Item model number | S421P | | Manufacturer | SPQ Brands | | Material type | Polypropylene | | Part number | S421P | | Product Dimensions | 121.92 x 2.54 x 609.6 cm; 13.15 kg | ## Images ![SmartPool WWS421P Sunheater Solar Pool Heater for Above Ground Pools - Image 1](https://m.media-amazon.com/images/I/91Uvi0cf+rS.jpg) ## Questions & Answers **Q: what all is included in the purchase? hoses? clamps?** A: I purchased the kit with 2 solar panels. It comes with pvc caps for one end of the panels. A rubber hose to connect the two panels together on the other end, as well as hose clamps. 2 pvc fittings for input and output flow to the panels. These are made to connect the filter hose to the panels. (although we bought new fittings to use all pvc pipe) It doesn't have any mounting hardware or rack to mount the panels to. So don't expect to have everything you will need. The picture on this ad shows more than what you will get. But performance of this heater has been very satisfying **Q: Did you use one or two panels?** A: We used 2 panels **Q: can this be used to heat a [4 person] hot tub to a comfortably HOT temperature??** A: No. It only increases the temperature 6-10 degrees. If the water is hot then it may retain the heat & increase a little but would not be good as a main source of heat. **Q: What is the maximum amount of gallons that this pool heater will warm up? Also, by how many degrees?** A: 1 box of the S421P panels will heat up to 31ft round aboveground pool or 18'x36' oval pool. It can heat it up to as much as 15 degrees. SPQ Brands ## Customer Reviews ### ⭐ . *by S***E on 25 July 2025* It as shown in photos. ### ⭐ Dont waste your money *by A***D on 16 July 2024* Second one now defective. This time im getting a refund instead of a replacement. Its cheaply made and not very strong. Neither one has heated up the pool either. ### ⭐⭐⭐⭐⭐ Review *by A***R on 27 June 2021* This is my second one. We installed this on our garage roof and it warmed our 15’ round above ground to 80 degrees in a couple days. This should be taken down every winter. We didn’t do that with the first one and after the second winter, it leaked. ## Frequently Bought Together - SunHeater Aboveground Pool Heating System, Includes Two 2’ x 20’ Panels (80 sq. ft.) – Solar Heater Made of Durable Polypropylene, Raises Temperature Up to 15°F – S421P, Black - Smartpool SK43 Roof/Rack Mounting Replacement Kit for SunHeater Pools,Black - SmartPool WWSK21 SunHeater Systems Kit,Black --- ## 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.vn/products/313514399-smartpool-wws421p-sunheater-solar-pool-heater-for-above-ground-pools](https://www.desertcart.vn/products/313514399-smartpool-wws421p-sunheater-solar-pool-heater-for-above-ground-pools) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-17*