{"product_id":"universal-h-series-low-nox-heater-400btu-lp-induced-draft","title":"Hayward Universal H-Series Propane Gas 400,000 BTU Low NOx Pool Heater","description":"\u003cp\u003eThe Hayward Universal H-Series W3H400FDP is a 400,000 BTU propane gas pool heater with low NOx emissions and induced draft combustion. It is the top of the Universal H-Series range and the size most often chosen for large inground pools and for pool and spa systems where the spa needs to come up to temperature quickly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBuilt for the installer\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eHayward designs the Universal H-Series around the pool service professional: it is meant to be adaptable to the installation rather than dictating it, and it is efficient in operation once it is in. The induced draft system uses a fan to move combustion air, which makes the heater less sensitive to wind and venting conditions than a natural draft design.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis is the propane model. If your site is plumbed for natural gas, order the natural gas version instead. Gas heaters must be installed by a qualified professional in accordance with local codes, and this unit ships by freight on a pallet.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48624869867732,"sku":"HAY-15-1015","price":3483.24,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_78859101-163f-47fd-a9ce-d58e459a4bea.png?v=1788647565","url":"https:\/\/www.activepoolsupply.com\/products\/universal-h-series-low-nox-heater-400btu-lp-induced-draft","provider":"Active Pool Supply","version":"1.0","type":"link"}