{"product_id":"dometic™-dfmdh35111-rv-furnace-35-000-btu-lp-gas-bottom-discharge-12v-dc","title":"Dometic™ DFMDH35111 RV Furnace – 35,000 BTU – LP Gas – Bottom Discharge – 12V DC","description":"\u003ch1 data-start=\"217\" data-end=\"301\"\u003eDometic™ DFMDH35111 RV Furnace – 35,000 BTU – LP Gas – Bottom Discharge – 12V DC\u003c\/h1\u003e\n\u003cp data-start=\"302\" data-end=\"369\"\u003e\u003cstrong data-start=\"302\" data-end=\"369\"\u003eDFM Series | Hall Effect Sensor | Medium Size | 2-Year Warranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"371\" data-end=\"653\"\u003e\u003cstrong data-start=\"371\" data-end=\"381\"\u003eModel:\u003c\/strong\u003e DFMDH35111\u003cbr data-start=\"392\" data-end=\"395\"\u003e\u003cstrong data-start=\"395\" data-end=\"406\"\u003eSeries:\u003c\/strong\u003e DFM “H” Series\u003cbr data-start=\"421\" data-end=\"424\"\u003e\u003cstrong data-start=\"424\" data-end=\"438\"\u003eFuel Type:\u003c\/strong\u003e LP Gas (Propane)\u003cbr data-start=\"455\" data-end=\"458\"\u003e\u003cstrong data-start=\"458\" data-end=\"473\"\u003eBTU Output:\u003c\/strong\u003e 35,000 BTU\u003cbr data-start=\"484\" data-end=\"487\"\u003e\u003cstrong data-start=\"487\" data-end=\"497\"\u003eStage:\u003c\/strong\u003e Single Stage\u003cbr data-start=\"510\" data-end=\"513\"\u003e\u003cstrong data-start=\"513\" data-end=\"525\"\u003eVoltage:\u003c\/strong\u003e 12 Volt DC\u003cbr data-start=\"536\" data-end=\"539\"\u003e\u003cstrong data-start=\"539\" data-end=\"558\"\u003eDischarge Type:\u003c\/strong\u003e Bottom Discharge\u003cbr data-start=\"575\" data-end=\"578\"\u003e\u003cstrong data-start=\"578\" data-end=\"620\"\u003eAccess Door Required (Sold Separately)\u003c\/strong\u003e\u003cbr data-start=\"620\" data-end=\"623\"\u003e\u003cstrong data-start=\"623\" data-end=\"653\"\u003eThermostat Sold Separately\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"655\" data-end=\"658\"\u003e\n\u003ch2 data-start=\"660\" data-end=\"679\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp data-start=\"681\" data-end=\"874\"\u003eThe \u003cstrong data-start=\"685\" data-end=\"708\"\u003eDometic™ DFMDH35111\u003c\/strong\u003e is a high-output \u003cstrong data-start=\"726\" data-end=\"758\"\u003e35,000 BTU LP gas RV furnace\u003c\/strong\u003e designed for medium-sized installations requiring bottom-discharge airflow and dependable cold-weather performance.\u003c\/p\u003e\n\u003cp data-start=\"876\" data-end=\"1210\"\u003ePart of Dometic’s advanced \u003cstrong data-start=\"903\" data-end=\"921\"\u003eDFM “H” Series\u003c\/strong\u003e, this model features a modern \u003cstrong data-start=\"952\" data-end=\"995\"\u003eHall Effect airflow verification system\u003c\/strong\u003e, replacing the traditional mechanical sail switch. The Hall sensor electronically monitors blower motor rotation to confirm proper airflow before ignition — improving reliability and reducing common service issues.\u003c\/p\u003e\n\u003cp data-start=\"1212\" data-end=\"1368\"\u003eThe DFMDH35111 also includes \u003cstrong data-start=\"1241\" data-end=\"1275\"\u003eBuilt-In Soft Start technology\u003c\/strong\u003e, reducing startup electrical surge and placing less strain on RV wiring and battery systems.\u003c\/p\u003e\n\u003cp data-start=\"1370\" data-end=\"1554\"\u003e⚠ \u003cstrong data-start=\"1372\" data-end=\"1386\"\u003eImportant:\u003c\/strong\u003e This model requires the purchase of a compatible exterior access door (sold separately).\u003cbr data-start=\"1475\" data-end=\"1478\"\u003e⚠ Always measure your existing cut-out to ensure proper fit before ordering.\u003c\/p\u003e\n\u003chr data-start=\"1556\" data-end=\"1559\"\u003e\n\u003ch1 data-start=\"1561\" data-end=\"1575\"\u003eKey Features\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli data-start=\"1579\" data-end=\"1608\"\u003e35,000 BTU heating capacity\u003c\/li\u003e\n\u003cli data-start=\"1611\" data-end=\"1639\"\u003eLP gas (propane) operation\u003c\/li\u003e\n\u003cli data-start=\"1642\" data-end=\"1676\"\u003eSingle-stage heating performance\u003c\/li\u003e\n\u003cli data-start=\"1679\" data-end=\"1719\"\u003eBottom discharge airflow configuration\u003c\/li\u003e\n\u003cli data-start=\"1722\" data-end=\"1744\"\u003e12 Volt DC operation\u003c\/li\u003e\n\u003cli data-start=\"1747\" data-end=\"1802\"\u003e\u003cstrong data-start=\"1747\" data-end=\"1800\"\u003eHall Effect airflow verification (no sail switch)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"1805\" data-end=\"1837\"\u003eBuilt-In Soft Start technology\u003c\/li\u003e\n\u003cli data-start=\"1840\" data-end=\"1882\"\u003eHigh-output heating for larger RV spaces\u003c\/li\u003e\n\u003cli data-start=\"1885\" data-end=\"1908\"\u003eMedium-size footprint\u003c\/li\u003e\n\u003cli data-start=\"1911\" data-end=\"1962\"\u003eCompatible access door required (sold separately)\u003c\/li\u003e\n\u003cli data-start=\"1965\" data-end=\"1993\"\u003eThermostat sold separately\u003c\/li\u003e\n\u003cli data-start=\"1996\" data-end=\"2028\"\u003e\u003cstrong data-start=\"1996\" data-end=\"2028\"\u003e2-Year Manufacturer Warranty\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2030\" data-end=\"2033\"\u003e\n\u003ch1 data-start=\"2035\" data-end=\"2051\"\u003eSpecifications\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli data-start=\"2055\" data-end=\"2078\"\u003e\n\u003cstrong data-start=\"2055\" data-end=\"2065\"\u003eModel:\u003c\/strong\u003e DFMDH35111\u003c\/li\u003e\n\u003cli data-start=\"2081\" data-end=\"2107\"\u003e\n\u003cstrong data-start=\"2081\" data-end=\"2092\"\u003eSeries:\u003c\/strong\u003e DFM H Series\u003c\/li\u003e\n\u003cli data-start=\"2110\" data-end=\"2138\"\u003e\n\u003cstrong data-start=\"2110\" data-end=\"2125\"\u003eBTU Rating:\u003c\/strong\u003e 35,000 BTU\u003c\/li\u003e\n\u003cli data-start=\"2141\" data-end=\"2164\"\u003e\n\u003cstrong data-start=\"2141\" data-end=\"2155\"\u003eFuel Type:\u003c\/strong\u003e LP Gas\u003c\/li\u003e\n\u003cli data-start=\"2167\" data-end=\"2200\"\u003e\n\u003cstrong data-start=\"2167\" data-end=\"2185\"\u003eHeating Stage:\u003c\/strong\u003e Single Stage\u003c\/li\u003e\n\u003cli data-start=\"2203\" data-end=\"2228\"\u003e\n\u003cstrong data-start=\"2203\" data-end=\"2215\"\u003eVoltage:\u003c\/strong\u003e 12 Volt DC\u003c\/li\u003e\n\u003cli data-start=\"2231\" data-end=\"2276\"\u003e\n\u003cstrong data-start=\"2231\" data-end=\"2257\"\u003eAirflow Configuration:\u003c\/strong\u003e Bottom Discharge\u003c\/li\u003e\n\u003cli data-start=\"2279\" data-end=\"2305\"\u003e\n\u003cstrong data-start=\"2279\" data-end=\"2289\"\u003eWidth:\u003c\/strong\u003e 16-1\/2 inches\u003c\/li\u003e\n\u003cli data-start=\"2308\" data-end=\"2330\"\u003e\n\u003cstrong data-start=\"2308\" data-end=\"2319\"\u003eHeight:\u003c\/strong\u003e 7 inches\u003c\/li\u003e\n\u003cli data-start=\"2333\" data-end=\"2355\"\u003e\n\u003cstrong data-start=\"2333\" data-end=\"2343\"\u003eDepth:\u003c\/strong\u003e 20 inches\u003c\/li\u003e\n\u003cli data-start=\"2358\" data-end=\"2402\"\u003e\n\u003cstrong data-start=\"2358\" data-end=\"2381\"\u003eAirflow Monitoring:\u003c\/strong\u003e Hall Effect Sensor\u003c\/li\u003e\n\u003cli data-start=\"2405\" data-end=\"2426\"\u003e\n\u003cstrong data-start=\"2405\" data-end=\"2420\"\u003eSoft Start:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli data-start=\"2429\" data-end=\"2496\"\u003e\n\u003cstrong data-start=\"2429\" data-end=\"2463\"\u003eExterior Access Door Included:\u003c\/strong\u003e No (Required for installation)\u003c\/li\u003e\n\u003cli data-start=\"2499\" data-end=\"2528\"\u003e\n\u003cstrong data-start=\"2499\" data-end=\"2523\"\u003eThermostat Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli data-start=\"2531\" data-end=\"2583\"\u003e\n\u003cstrong data-start=\"2531\" data-end=\"2544\"\u003eWarranty:\u003c\/strong\u003e 2-Year Limited Manufacturer Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2585\" data-end=\"2588\"\u003e\n\u003ch1 data-start=\"2590\" data-end=\"2622\"\u003eWhy Choose the DFM “H” Series?\u003c\/h1\u003e\n\u003cp data-start=\"2624\" data-end=\"2715\"\u003eOlder RV furnaces rely on mechanical sail switches to verify airflow. Over time, these can:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"2719\" data-end=\"2742\"\u003eBecome dirty or stick\u003c\/li\u003e\n\u003cli data-start=\"2745\" data-end=\"2783\"\u003eCause intermittent ignition failures\u003c\/li\u003e\n\u003cli data-start=\"2786\" data-end=\"2828\"\u003eRequire seasonal cleaning or replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2830\" data-end=\"2978\"\u003eThe \u003cstrong data-start=\"2834\" data-end=\"2856\"\u003eHall Effect system\u003c\/strong\u003e in the DFMDH35111 eliminates that mechanical component by electronically monitoring blower motor rotation — resulting in:\u003c\/p\u003e\n\u003cp data-start=\"2980\" data-end=\"3128\"\u003e✔ Improved ignition consistency\u003cbr data-start=\"3011\" data-end=\"3014\"\u003e✔ Reduced service issues\u003cbr data-start=\"3038\" data-end=\"3041\"\u003e✔ Better performance in cold or dusty environments\u003cbr data-start=\"3091\" data-end=\"3094\"\u003e✔ Enhanced long-term reliability\u003c\/p\u003e\n\u003chr data-start=\"3130\" data-end=\"3133\"\u003e\n\u003ch1 data-start=\"3135\" data-end=\"3155\"\u003eInstallation Notes\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli data-start=\"3159\" data-end=\"3241\"\u003eThis model \u003cstrong data-start=\"3170\" data-end=\"3216\"\u003erequires a compatible exterior access door\u003c\/strong\u003e, purchased separately.\u003c\/li\u003e\n\u003cli data-start=\"3244\" data-end=\"3322\"\u003eBottom discharge design directs heated air downward into floor duct systems.\u003c\/li\u003e\n\u003cli data-start=\"3325\" data-end=\"3376\"\u003eAlways verify cut-out dimensions before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3378\" data-end=\"3381\"\u003e\n\u003ch1 data-start=\"3383\" data-end=\"3417\"\u003eFrequently Asked Questions (FAQ)\u003c\/h1\u003e\n\u003cp data-start=\"3419\" data-end=\"3556\"\u003e\u003cstrong data-start=\"3419\" data-end=\"3458\"\u003eQ: What does the “H” in DFMDH mean?\u003c\/strong\u003e\u003cbr data-start=\"3458\" data-end=\"3461\"\u003eA: It designates a Hall Effect airflow verification system instead of a mechanical sail switch.\u003c\/p\u003e\n\u003cp data-start=\"3558\" data-end=\"3679\"\u003e\u003cstrong data-start=\"3558\" data-end=\"3606\"\u003eQ: Does this furnace include an access door?\u003c\/strong\u003e\u003cbr data-start=\"3606\" data-end=\"3609\"\u003eA: No. A compatible exterior access door must be purchased separately.\u003c\/p\u003e\n\u003cp data-start=\"3681\" data-end=\"3755\"\u003e\u003cstrong data-start=\"3681\" data-end=\"3712\"\u003eQ: Is this furnace propane?\u003c\/strong\u003e\u003cbr data-start=\"3712\" data-end=\"3715\"\u003eA: Yes. It operates on LP gas (propane).\u003c\/p\u003e\n\u003cp data-start=\"3757\" data-end=\"3843\"\u003e\u003cstrong data-start=\"3757\" data-end=\"3791\"\u003eQ: Does this model use 12V DC?\u003c\/strong\u003e\u003cbr data-start=\"3791\" data-end=\"3794\"\u003eA: Yes. It operates on standard 12 Volt DC power.\u003c\/p\u003e\n\u003cp data-start=\"3845\" data-end=\"3952\"\u003e\u003cstrong data-start=\"3845\" data-end=\"3881\"\u003eQ: Does it include a thermostat?\u003c\/strong\u003e\u003cbr data-start=\"3881\" data-end=\"3884\"\u003eA: No. A compatible furnace thermostat must be purchased separately.\u003c\/p\u003e\n\u003cp data-start=\"3954\" data-end=\"4054\"\u003e\u003cstrong data-start=\"3954\" data-end=\"3987\"\u003eQ: What warranty is included?\u003c\/strong\u003e\u003cbr data-start=\"3987\" data-end=\"3990\"\u003eA: This furnace includes a 2-year limited manufacturer warranty.\u003c\/p\u003e","brand":"RV Furnace Guys","offers":[{"title":"Default Title","offer_id":47857601380593,"sku":null,"price":1379.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4941\/0289\/files\/351111.png?v=1772400083","url":"https:\/\/rvfurnaceguys.com\/products\/dometic%e2%84%a2-dfmdh35111-rv-furnace-35-000-btu-lp-gas-bottom-discharge-12v-dc","provider":"RV Furnace Guys","version":"1.0","type":"link"}