{"product_id":"rinnai-smart-sense-tankless-water-heater-11-1-gpm","title":"Rinnai RX199iN Tankless Water Heater - Condensing 11.1 GPM","description":"\u003cp\u003eIn this review of the Rinnai RX199iN tankless water heater, the bottom line is simple: this unit is for households that need reliable, high-flow hot water without a bulky tank. The RX199iN stands out for its ability to deliver up to \u003cstrong\u003e11.1 GPM\u003c\/strong\u003e, run on either propane or natural gas with the Smart Sense gas control, and be installed indoors or outdoors using the Versa Vent system. For families who want continuous hot water, high efficiency, and a compact footprint, this Rinnai model is a practical choice.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-fuel compatibility:\u003c\/strong\u003e The Smart Sense gas control allows operation on either natural gas or propane, making it flexible for different fuel supplies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndoor or outdoor installation:\u003c\/strong\u003e Convertible design with the Versa Vent system and an RX-OVC vent cap option enables installation where space or venting needs differ.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow rate:\u003c\/strong\u003e Capable of up to 11.1 GPM, it can handle simultaneous use across several fixtures in a typical family home.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondensing efficiency:\u003c\/strong\u003e A super-high UEF of 0.98 delivers excellent fuel efficiency and lower operating costs compared with standard tank units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact footprint:\u003c\/strong\u003e Roughly the size of a small suitcase, it frees up space compared with traditional tank heaters while providing long-lived on-demand performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eService-friendly features:\u003c\/strong\u003e The Quick Flush function simplifies descaling and maintenance, and a Control-R module is available for WiFi control (module not included).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe RX199iN is best for medium to large households that frequently use multiple hot-water outlets at once, such as kitchens, showers, and laundry, and who want the efficiency gains of a condensing tankless system. Its convertible vent and gas options make it suitable for homes where either fuel type or indoor\/outdoor placement is required.\u003c\/p\u003e\n\u003cp\u003eHomeowners who prefer DIY full installations should look elsewhere; Rinnai and customers recommend professional installation. Also, if a lower flow rate would suffice for a small apartment or single-fixture use, a smaller, less expensive model might be more appropriate.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVery high flow capacity up to 11.1 GPM supports multiple fixtures without noticeable drop in temperature.\u003c\/li\u003e\n\u003cli\u003eFlexible installation options for indoor or outdoor placement with the Versa Vent and RX-OVC vent cap.\u003c\/li\u003e\n\u003cli\u003eOutstanding efficiency (UEF 0.98) that can reduce fuel use compared to conventional tanks.\u003c\/li\u003e\n\u003cli\u003eCompact size and easy-to-use interface with Quick Flush for maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation is recommended, adding to upfront cost and complexity.\u003c\/li\u003e\n\u003cli\u003eWiFi control requires an optional Control-R module, which is not included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eRinnai\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eRX199iN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuel\u003c\/td\u003e\n\u003ctd\u003eNatural gas or propane (Smart Sense)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Flow Rate\u003c\/td\u003e\n\u003ctd\u003eUp to 11.1 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax BTU\u003c\/td\u003e\n\u003ctd\u003e199,000 BTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEfficiency\u003c\/td\u003e\n\u003ctd\u003eUEF 0.98 (condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eIndoor or outdoor (RX-OVC vent cap required outdoors)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Rinnai RX199iN is a strong pick for families needing high, continuous hot-water demand with top-tier efficiency and flexible installation options. It delivers excellent value where multiple fixtures run at once and space is limited, provided buyers budget for professional installation and optional WiFi control separately.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan this unit be installed outdoors?\u003c\/strong\u003e\u003cbr\u003eYes, it is convertible for outdoor installation when used with the RX-OVC vent cap and the Versa Vent system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it run on propane?\u003c\/strong\u003e\u003cbr\u003eYes, the Smart Sense gas control supports both natural gas and propane.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs WiFi control included?\u003c\/strong\u003e\u003cbr\u003eNo, WiFi requires the separate Control-R module which is sold separately.\u003c\/p\u003e","brand":"Rinnai","offers":[{"title":"Default Title","offer_id":46753107378395,"sku":"B0CM4L8VKC","price":1537.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/31U8o4LBbLL._AC.jpg?v=1747585071","url":"https:\/\/gearmusthave.com\/products\/rinnai-smart-sense-tankless-water-heater-11-1-gpm","provider":"GearMustHave","version":"1.0","type":"link"}