{"product_id":"dfmd30111-dometic-rv-medium-furnace-30k-btu-12v-dc","title":"Dometic™ DFMDH30111 RV Furnace – 30,000 BTU – LP Gas – Bottom Discharge – 12V DC","description":"\u003ch1 data-start=\"180\" data-end=\"264\"\u003eDometic™ DFMDH30111 RV Furnace – 30,000 BTU – LP Gas – Bottom Discharge – 12V DC\u003c\/h1\u003e\n\u003cp data-start=\"265\" data-end=\"320\"\u003e\u003cstrong data-start=\"265\" data-end=\"320\"\u003eDFM Series | Hall Effect Sensor Model | Medium Size\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"322\" data-end=\"573\"\u003e\u003cstrong data-start=\"322\" data-end=\"332\"\u003eModel:\u003c\/strong\u003e DFMDH30111\u003cbr data-start=\"343\" data-end=\"346\"\u003e\u003cstrong data-start=\"346\" data-end=\"357\"\u003eSeries:\u003c\/strong\u003e DFM “H” Series\u003cbr data-start=\"372\" data-end=\"375\"\u003e\u003cstrong data-start=\"375\" data-end=\"389\"\u003eFuel Type:\u003c\/strong\u003e LP Gas (Propane)\u003cbr data-start=\"406\" data-end=\"409\"\u003e\u003cstrong data-start=\"409\" data-end=\"424\"\u003eBTU Output:\u003c\/strong\u003e 30,000 BTU\u003cbr data-start=\"435\" data-end=\"438\"\u003e\u003cstrong data-start=\"438\" data-end=\"448\"\u003eStage:\u003c\/strong\u003e Single Stage\u003cbr data-start=\"461\" data-end=\"464\"\u003e\u003cstrong data-start=\"464\" data-end=\"476\"\u003eVoltage:\u003c\/strong\u003e 12 Volt DC\u003cbr data-start=\"487\" data-end=\"490\"\u003e\u003cstrong data-start=\"490\" data-end=\"509\"\u003eDischarge Type:\u003c\/strong\u003e Bottom Discharge\u003cbr data-start=\"526\" data-end=\"529\"\u003e\u003cstrong data-start=\"529\" data-end=\"573\"\u003eAccess Door \u0026amp; Thermostat Sold Separately\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"575\" data-end=\"578\"\u003e\n\u003ch2 data-start=\"580\" data-end=\"599\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp data-start=\"601\" data-end=\"758\"\u003eThe \u003cstrong data-start=\"605\" data-end=\"628\"\u003eDometic™ DFMDH30111\u003c\/strong\u003e is a high-capacity \u003cstrong data-start=\"648\" data-end=\"680\"\u003e30,000 BTU LP gas RV furnace\u003c\/strong\u003e designed for medium-sized RV applications requiring bottom-discharge ducting.\u003c\/p\u003e\n\u003cp data-start=\"760\" data-end=\"955\"\u003eAs part of the updated \u003cstrong data-start=\"783\" data-end=\"801\"\u003eDFM “H” Series\u003c\/strong\u003e, this furnace features an advanced \u003cstrong data-start=\"837\" data-end=\"880\"\u003eHall Effect airflow verification system\u003c\/strong\u003e, replacing the traditional mechanical sail switch found in older furnaces.\u003c\/p\u003e\n\u003cp data-start=\"957\" data-end=\"1169\"\u003eInstead of relying on a paddle-style airflow switch that can stick or collect dust, the Hall Effect system electronically monitors blower motor rotation to confirm proper airflow before ignition. This results in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"1173\" data-end=\"1210\"\u003eFaster and more consistent ignition\u003c\/li\u003e\n\u003cli data-start=\"1213\" data-end=\"1251\"\u003eFewer airflow-related service issues\u003c\/li\u003e\n\u003cli data-start=\"1254\" data-end=\"1306\"\u003eImproved reliability in cold or dusty environments\u003c\/li\u003e\n\u003cli data-start=\"1309\" data-end=\"1361\"\u003eReduced maintenance compared to sail-switch models\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1363\" data-end=\"1534\"\u003eOperating on standard \u003cstrong data-start=\"1385\" data-end=\"1399\"\u003e12 Volt DC\u003c\/strong\u003e, the DFMDH30111 is ideal for replacement installations requiring dependable propane heating with modern electronic airflow monitoring.\u003c\/p\u003e\n\u003cp data-start=\"1536\" data-end=\"1649\"\u003e⚠ \u003cstrong data-start=\"1538\" data-end=\"1552\"\u003eImportant:\u003c\/strong\u003e Always measure your existing furnace cut-out dimensions before purchasing to confirm proper fit.\u003c\/p\u003e\n\u003chr data-start=\"1651\" data-end=\"1654\"\u003e\n\u003ch1 data-start=\"1656\" data-end=\"1670\"\u003eKey Features\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli data-start=\"1674\" data-end=\"1703\"\u003e30,000 BTU heating capacity\u003c\/li\u003e\n\u003cli data-start=\"1706\" data-end=\"1734\"\u003eLP gas (propane) operation\u003c\/li\u003e\n\u003cli data-start=\"1737\" data-end=\"1771\"\u003eSingle-stage heating performance\u003c\/li\u003e\n\u003cli data-start=\"1774\" data-end=\"1814\"\u003eBottom discharge airflow configuration\u003c\/li\u003e\n\u003cli data-start=\"1817\" data-end=\"1839\"\u003e12 Volt DC operation\u003c\/li\u003e\n\u003cli data-start=\"1842\" data-end=\"1915\"\u003e\u003cstrong data-start=\"1842\" data-end=\"1913\"\u003eHall Effect airflow verification system (no mechanical sail switch)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"1918\" data-end=\"1950\"\u003eBuilt-In Soft Start technology\u003c\/li\u003e\n\u003cli data-start=\"1953\" data-end=\"1987\"\u003eReduced startup electrical surge\u003c\/li\u003e\n\u003cli data-start=\"1990\" data-end=\"2026\"\u003eMedium-size installation footprint\u003c\/li\u003e\n\u003cli data-start=\"2029\" data-end=\"2069\"\u003eDesigned for modern RV furnace systems\u003c\/li\u003e\n\u003cli data-start=\"2072\" data-end=\"2101\"\u003eAccess door sold separately\u003c\/li\u003e\n\u003cli data-start=\"2104\" data-end=\"2132\"\u003eThermostat sold separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2134\" data-end=\"2137\"\u003e\n\u003ch1 data-start=\"2139\" data-end=\"2155\"\u003eSpecifications\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli data-start=\"2159\" data-end=\"2182\"\u003e\n\u003cstrong data-start=\"2159\" data-end=\"2169\"\u003eModel:\u003c\/strong\u003e DFMDH30111\u003c\/li\u003e\n\u003cli data-start=\"2185\" data-end=\"2211\"\u003e\n\u003cstrong data-start=\"2185\" data-end=\"2196\"\u003eSeries:\u003c\/strong\u003e DFM H Series\u003c\/li\u003e\n\u003cli data-start=\"2214\" data-end=\"2242\"\u003e\n\u003cstrong data-start=\"2214\" data-end=\"2229\"\u003eBTU Rating:\u003c\/strong\u003e 30,000 BTU\u003c\/li\u003e\n\u003cli data-start=\"2245\" data-end=\"2268\"\u003e\n\u003cstrong data-start=\"2245\" data-end=\"2259\"\u003eFuel Type:\u003c\/strong\u003e LP Gas\u003c\/li\u003e\n\u003cli data-start=\"2271\" data-end=\"2304\"\u003e\n\u003cstrong data-start=\"2271\" data-end=\"2289\"\u003eHeating Stage:\u003c\/strong\u003e Single Stage\u003c\/li\u003e\n\u003cli data-start=\"2307\" data-end=\"2332\"\u003e\n\u003cstrong data-start=\"2307\" data-end=\"2319\"\u003eVoltage:\u003c\/strong\u003e 12 Volt DC\u003c\/li\u003e\n\u003cli data-start=\"2335\" data-end=\"2372\"\u003e\n\u003cstrong data-start=\"2335\" data-end=\"2363\"\u003eDischarge Configuration:\u003c\/strong\u003e Bottom\u003c\/li\u003e\n\u003cli data-start=\"2375\" data-end=\"2401\"\u003e\n\u003cstrong data-start=\"2375\" data-end=\"2385\"\u003eWidth:\u003c\/strong\u003e 16-1\/2 inches\u003c\/li\u003e\n\u003cli data-start=\"2404\" data-end=\"2426\"\u003e\n\u003cstrong data-start=\"2404\" data-end=\"2415\"\u003eHeight:\u003c\/strong\u003e 7 inches\u003c\/li\u003e\n\u003cli data-start=\"2429\" data-end=\"2451\"\u003e\n\u003cstrong data-start=\"2429\" data-end=\"2439\"\u003eDepth:\u003c\/strong\u003e 20 inches\u003c\/li\u003e\n\u003cli data-start=\"2454\" data-end=\"2498\"\u003e\n\u003cstrong data-start=\"2454\" data-end=\"2477\"\u003eAirflow Monitoring:\u003c\/strong\u003e Hall Effect Sensor\u003c\/li\u003e\n\u003cli data-start=\"2501\" data-end=\"2533\"\u003e\n\u003cstrong data-start=\"2501\" data-end=\"2527\"\u003eSoft Start Technology:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli data-start=\"2536\" data-end=\"2566\"\u003e\n\u003cstrong data-start=\"2536\" data-end=\"2561\"\u003eAccess Door Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli data-start=\"2569\" data-end=\"2598\"\u003e\n\u003cstrong data-start=\"2569\" data-end=\"2593\"\u003eThermostat Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2600\" data-end=\"2603\"\u003e\n\u003ch1 data-start=\"2605\" data-end=\"2645\"\u003eWhy Choose the H-Series (Hall Effect)?\u003c\/h1\u003e\n\u003cp data-start=\"2647\" data-end=\"2748\"\u003eTraditional RV furnaces use a mechanical sail switch to detect airflow. Over time, sail switches may:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"2752\" data-end=\"2783\"\u003eBecome contaminated with dust\u003c\/li\u003e\n\u003cli data-start=\"2786\" data-end=\"2816\"\u003eStick or fail intermittently\u003c\/li\u003e\n\u003cli data-start=\"2819\" data-end=\"2837\"\u003ePrevent ignition\u003c\/li\u003e\n\u003cli data-start=\"2840\" data-end=\"2873\"\u003eRequire cleaning or replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2875\" data-end=\"3016\"\u003eThe \u003cstrong data-start=\"2879\" data-end=\"2931\"\u003eDFMDH30111 eliminates the mechanical sail switch\u003c\/strong\u003e and uses an electronic Hall Effect sensor to monitor blower motor rotation directly.\u003c\/p\u003e\n\u003cp data-start=\"3018\" data-end=\"3035\"\u003eBenefits include:\u003c\/p\u003e\n\u003cp data-start=\"3037\" data-end=\"3189\"\u003e✔ Improved long-term reliability\u003cbr data-start=\"3069\" data-end=\"3072\"\u003e✔ More consistent ignition performance\u003cbr data-start=\"3110\" data-end=\"3113\"\u003e✔ Reduced maintenance\u003cbr data-start=\"3134\" data-end=\"3137\"\u003e✔ Better performance in extreme weather conditions\u003c\/p\u003e\n\u003chr data-start=\"3191\" data-end=\"3194\"\u003e\n\u003ch1 data-start=\"3196\" data-end=\"3230\"\u003eFrequently Asked Questions (FAQ)\u003c\/h1\u003e\n\u003cp data-start=\"3232\" data-end=\"3386\"\u003e\u003cstrong data-start=\"3232\" data-end=\"3271\"\u003eQ: What does the “H” in DFMDH mean?\u003c\/strong\u003e\u003cbr data-start=\"3271\" data-end=\"3274\"\u003eA: It indicates the furnace uses a Hall Effect airflow verification system instead of a traditional sail switch.\u003c\/p\u003e\n\u003cp data-start=\"3388\" data-end=\"3491\"\u003e\u003cstrong data-start=\"3388\" data-end=\"3440\"\u003eQ: Does this model use a mechanical sail switch?\u003c\/strong\u003e\u003cbr data-start=\"3440\" data-end=\"3443\"\u003eA: No. It uses an electronic Hall Effect sensor.\u003c\/p\u003e\n\u003cp data-start=\"3493\" data-end=\"3595\"\u003e\u003cstrong data-start=\"3493\" data-end=\"3525\"\u003eQ: What is Bottom Discharge?\u003c\/strong\u003e\u003cbr data-start=\"3525\" data-end=\"3528\"\u003eA: Heated air exits vertically downward into floor ducting systems.\u003c\/p\u003e\n\u003cp data-start=\"3597\" data-end=\"3696\"\u003e\u003cstrong data-start=\"3597\" data-end=\"3629\"\u003eQ: Is a thermostat included?\u003c\/strong\u003e\u003cbr data-start=\"3629\" data-end=\"3632\"\u003eA: No. A compatible 12V thermostat must be purchased separately.\u003c\/p\u003e\n\u003cp data-start=\"3698\" data-end=\"3793\"\u003e\u003cstrong data-start=\"3698\" data-end=\"3748\"\u003eQ: Does this include the exterior access door?\u003c\/strong\u003e\u003cbr data-start=\"3748\" data-end=\"3751\"\u003eA: No. The access door is sold separately.\u003c\/p\u003e\n\u003cp data-start=\"3795\" data-end=\"3989\"\u003e\u003cstrong data-start=\"3795\" data-end=\"3847\"\u003eQ: Can this replace older 30K BTU Atwood models?\u003c\/strong\u003e\u003cbr data-start=\"3847\" data-end=\"3850\"\u003eA: In many cases, yes — but always verify cut-out dimensions, discharge direction, and gas\/electrical connection placement before ordering.\u003c\/p\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp data-path-to-node=\"5\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0784\/4941\/0289\/files\/dometic_logo_3.jpg?v=1770575537\" alt=\"\" width=\"250\" height=\"54\"\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"2\"\u003e \u003c\/p\u003e\n\u003cdiv class=\"attachment-container unknown\"\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003ca rel=\"noopener\" class=\"product-card single-product-card-view one-image\" href=\"https:\/\/google.com\/search?q=Dometic+%7C+Medium+Furnace+%7C+DFMD30111+%7C+DFMDH30111+%7C+30,000+BTU\u0026amp;prds=headlineOfferDocid%3A12356856127902001319%2Cproductid%3A12356856127902001319%2Cpvo%3A38%2Cpvt%3Ahg\u0026amp;ibp=oshop\u0026amp;pvo=38\u0026amp;opi=103135050\u0026amp;gl=us\u0026amp;hl=en\u0026amp;noiga=1\" target=\"_blank\"\u003e\u003c!----\u003e\n\u003cdiv class=\"product-image-container ng-star-inserted\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"RV Furnace Guys","offers":[{"title":"Default Title","offer_id":47784337309937,"sku":null,"price":1345.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4941\/0289\/files\/DFMD30111.avif?v=1770575609","url":"https:\/\/rvfurnaceguys.com\/products\/dfmd30111-dometic-rv-medium-furnace-30k-btu-12v-dc","provider":"RV Furnace Guys","version":"1.0","type":"link"}