{"product_id":"pentair-max-e-therm®-liquid-propane-gas-pool-spa-heater-333k-btu","title":"Pentair Max-E-Therm® Liquid Propane Gas Pool \u0026 Spa Heater 333K BTU","description":"\u003cp\u003eThe Pentair Max-E-Therm® 333,000 BTU Liquid Propane (LP) Heater is a high-performance heating system engineered to deliver rapid warmth and exceptional efficiency for mid-to-large sized pools and spas. This model features a sophisticated pre-mixed combustion system that optimizes the propane-to-air ratio, ensuring industry-leading heat-up times while maintaining a \"Low NOx\" certification for eco-friendly operation. The unit is housed in a sleek, rust-proof enclosure made of Dura-Glas™—a high-grade composite resin that withstands harsh weather, UV rays, and corrosive pool chemicals far better than traditional metal cabinets. Internally, the heater is equipped with a heavy-duty cupro-nickel heat exchanger, providing superior resistance to the fluctuations in water chemistry often found in salt-chlorinated systems. Its intuitive digital control panel allows for precise temperature management and includes self-diagnostic indicators for easy troubleshooting. Despite its compact and space-saving design, the unit is built with a substantial internal firebox and industrial-grade plumbing that give it a solid, professional heft. The Pentair Max-E-Therm 333K BTU Liquid Propane Heater weighs approximately \u003cb data-path-to-node=\"1\" data-index-in-node=\"1214\"\u003e138 pounds\u003c\/b\u003e, serving as a durable, powerful, and highly reliable heating solution for modern aquatic environments.\u003c\/p\u003e","brand":"Commercial Pool and Spa Supplies","offers":[{"title":"Default Title","offer_id":53093394514031,"sku":"SR333LP","price":7345.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/3785\/3807\/files\/max_e_therm_bf7215f6-a351-4f46-8b81-4dfaf63a791a.avif?v=1778770530","url":"https:\/\/commercialpoolandspasupplies.com\/products\/pentair-max-e-therm%c2%ae-liquid-propane-gas-pool-spa-heater-333k-btu","provider":"Commercial Pool and Spa Supplies ","version":"1.0","type":"link"}