{"product_id":"martin-natural-gas-direct-vent-heater-mdv20vn-20000-btu","title":"Martin 20,000 BTU Direct Vent Natural Gas Heater MDV20VN","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\u003c\/p\u003e\n\u003cstyle\u003e\n        \/*\n            Author: Cabinet Depot Product Team\n            Date: 2025-12-18\n            Brand: Martin (Dark Grey #333333 \/ Gold #FFC107)\n            Region: USA\n        *\/\n        @import url('https:\/\/fonts.googleapis.com\/css2?family=Lato:wght@300;400;700;900\u0026display=swap');\n\n        body {\n            font-family: 'Lato', sans-serif;\n            line-height: 1.6;\n            color: #333;\n            margin: 0;\n            padding: 0;\n            background-color: #fff;\n        }\n\n        main {\n            max-width: 1000px;\n            margin: 0 auto;\n            padding: 20px;\n        }\n\n        \/* --- STANDARD STYLING --- *\/\n        h2 {\n            margin-top: 0;\n        }\n        \n        td strong {\n            color: #333333;\n            font-weight: 700;\n        }\n\n        main ul {\n            list-style: disc;\n            padding-left: 30px;\n            margin: 15px 0;\n        }\n\n        main li {\n            padding-left: 5px;\n            margin-bottom: 8px;\n        }\n        \n        h4 {\n            margin-top: 25px;\n        }\n\n        \/* Standard Link Styling *\/\n        a {\n            color: #b38600;\n            text-decoration: underline;\n            transition: color 0.3s ease;\n        }\n        \n        a:hover {\n            color: #333;\n            text-decoration: none;\n        }\n\n        \/* Responsive Table Container *\/\n        .table-container {\n            overflow-x: auto;\n            -webkit-overflow-scrolling: touch;\n            margin: 0 auto;\n            margin-top: 20px;\n            box-shadow: 0 2px 5px rgba(0,0,0,0.05);\n            border-radius: 8px;\n        }\n        \n        table {\n            width: 100%;\n            border-collapse: collapse;\n            font-family: 'Lato', sans-serif;\n            min-width: 500px;\n        }\n\n        \/* --- MARTIN BRANDING (TABLES) --- *\/\n        thead tr {\n            background-color: #333333;\n            color: #FFC107;\n            text-align: left;\n        }\n\n        th, td {\n            padding: 12px 15px;\n            text-align: left;\n        }\n\n        tbody tr {\n            border-bottom: 1px solid #d1ccc0;\n        }\n\n        tbody tr:nth-of-type(even) {\n            background-color: #fffdf2;\n        }\n\n        tbody tr:last-of-type {\n            border-bottom: 2px solid #FFC107;\n        }\n\n        @media (min-width: 768px) {\n            .table-container {\n                display: flex;\n                justify-content: center;\n            }\n            table {\n                width: auto;\n                min-width: 600px;\n                max-width: 800px;\n            }\n            th, td {\n                padding: 15px 25px;\n            }\n        }\n\n        \/* --- PROMO BANNER (USA) --- *\/\n        .promo-banner {\n            background-color: #fffde7;\n            border: 1px solid #FFC107;\n            color: #d32f2f;\n            text-align: center;\n            padding: 15px;\n            border-radius: 8px;\n            margin: 20px 0;\n            font-weight: 700;\n            text-transform: uppercase;\n            letter-spacing: 0.5px;\n            box-shadow: 0 2px 4px rgba(0,0,0,0.05);\n        }\n        .promo-sub {\n            display: block;\n            font-size: 0.8rem;\n            color: #555;\n            font-weight: 400;\n            margin-top: 5px;\n            text-transform: none;\n        }\n        .promo-sub a {\n            color: #555;\n            text-decoration: underline;\n        }\n        .promo-sub a:hover {\n            color: #d32f2f;\n        }\n\n        \/* --- NOTICE BOX --- *\/\n        .info-container {\n            font-family: 'Lato', sans-serif;\n            line-height: 1.6;\n            color: #333;\n            border: 2px solid #FFC107;\n            background-color: #fffde7;\n            padding: 20px;\n            border-radius: 8px;\n            margin: 25px auto;\n            max-width: 800px;\n            box-sizing: border-box;\n        }\n\n        .info-container h4 {\n            color: #b38600;\n            margin-top: 0;\n            text-align: center;\n            font-size: 1.2em;\n            font-weight: 700;\n        }\n\n        .info-container p {\n            text-align: left;\n            margin-top: 15px;\n            margin-bottom: 10px;\n        }\n        \n        .info-container ul {\n            list-style: disc;\n            margin: 15px 0 0 0;\n            padding-left: 30px;\n        }\n\n        .info-container li {\n            padding-left: 5px;\n            margin-bottom: 8px;\n        }\n\n        \/* Feature List *\/\n        .feature-grid {\n            display: grid;\n            grid-template-columns: 1fr;\n            gap: 15px;\n            margin-bottom: 30px;\n        }\n        .feature-item {\n            background: #f9f9f9;\n            padding: 15px;\n            border-radius: 6px;\n            border-left: 4px solid #FFC107;\n        }\n\n        @media (min-width: 768px) {\n            .feature-grid {\n                grid-template-columns: 1fr 1fr;\n            }\n        }\n    \u003c\/style\u003e\n\u003cmain\u003e\n\u003ch2 style=\"text-align: center;\"\u003e\u003cstrong\u003eMartin 20,000 BTU Direct Vent Natural Gas Heater MDV20VN\u003c\/strong\u003e\u003c\/h2\u003e\n\u003c!-- SHIPPING NOTIFICATION BOX (USA) --\u003e\n\u003cdiv class=\"promo-banner\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e*Free Shipping Across The USA* \u003cspan class=\"promo-sub\"\u003e\u003ca href=\"https:\/\/thecabindepot.com\/pages\/free-shipping-policy\" rel=\"noopener\" target=\"_blank\"\u003e*Remote locations excluded - See Policy\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp\u003eKeep your largest spaces comfortably warm with the \u003cstrong\u003eMartin MDV20VN\u003c\/strong\u003e, a powerful 20,000 BTU direct vent natural gas heater. This high-capacity unit operates entirely without electricity, ensuring you have reliable heat during power outages or severe winter storms. The \"VN\" model features a stylish \u003cstrong\u003eGlass-Ceramic Visor\u003c\/strong\u003e, allowing you to enjoy the comforting glow of the flame while efficiently heating areas up to 538 sq. ft.\u003c\/p\u003e\n\u003c!-- SALES SUPPORT POP-OUT BOX --\u003e\n\u003cdiv style=\"text-align: center; margin: 30px auto; padding: 20px; background-color: #fff; border-radius: 8px; border: 2px solid #FFC107; box-shadow: 0 6px 12px rgba(0,0,0,0.1); max-width: 700px;\"\u003e\n\u003ch4 style=\"margin-top: 0; margin-bottom: 10px; color: #b38600;\"\u003e\u003cstrong\u003eQuestions about this heater?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 1em; margin: 5px 0;\"\u003eCall Sales Support: \u003ca style=\"color: #333; font-weight: bold; text-decoration: none;\" href=\"tel:+18446034743\"\u003e+1 (844) 603-4743\u003c\/a\u003e \u003cspan style=\"color: #ccc; margin: 0 10px;\"\u003e|\u003c\/span\u003e Email: \u003ca style=\"color: #b38600; font-weight: bold;\" href=\"mailto:sales@thecabindepot.com\"\u003esales@thecabindepot.com\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9em; margin: 5px 0;\"\u003eOr submit a request via our \u003ca style=\"color: #b38600; text-decoration: underline;\" href=\"https:\/\/share.hsforms.com\/1gcABoX2FRCa8LnBu0QtmFgrbc1e\" target=\"_blank\"\u003eSupport Form\u003c\/a\u003e (select \"Sales\" category)\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Benefits:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"feature-grid\"\u003e\n\u003cdiv class=\"feature-item\"\u003e\n\u003cstrong\u003e20,000 BTU Capacity:\u003c\/strong\u003e Our most powerful wall heater, capable of warming larger rooms, basements, and open-concept spaces up to 538 sq. ft.\u003c\/div\u003e\n\u003cdiv class=\"feature-item\"\u003e\n\u003cstrong\u003eGlass-Ceramic Visor:\u003c\/strong\u003e Features a durable viewing window that adds safety and ambiance to your living space.\u003c\/div\u003e\n\u003cdiv class=\"feature-item\"\u003e\n\u003cstrong\u003eNatural Gas Operation:\u003c\/strong\u003e Designed specifically for clean-burning Natural Gas (NG).\u003c\/div\u003e\n\u003cdiv class=\"feature-item\"\u003e\n\u003cstrong\u003eNon-Electric Operation:\u003c\/strong\u003e Functions completely without power, making it the ultimate backup heat source.\u003c\/div\u003e\n\u003cdiv class=\"feature-item\"\u003e\n\u003cstrong\u003eBuilt-In Thermostat:\u003c\/strong\u003e Integrated Hi-Lo dial automatically regulates heat output to maintain a consistent temperature.\u003c\/div\u003e\n\u003cdiv class=\"feature-item\"\u003e\n\u003cstrong\u003eDirect Vent Safety:\u003c\/strong\u003e Sealed system draws combustion air from outside and vents fumes externally, preserving indoor air quality.\u003c\/div\u003e\n\u003cdiv class=\"feature-item\"\u003e\n\u003cstrong\u003eCSA Certified:\u003c\/strong\u003e Fully tested and certified for safe use in Canada and the USA.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- NOTICE BOX --\u003e\n\u003cdiv class=\"info-container\"\u003e\n\u003ch4\u003e\u003cstrong\u003eImportant Performance \u0026amp; Support Information\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003ePlease ensure this unit matches your requirements before purchasing:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Type:\u003c\/strong\u003e This model is for \u003cstrong\u003eNatural Gas ONLY\u003c\/strong\u003e. Do not attempt to use with Propane.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeating Capacity:\u003c\/strong\u003e Rated for approx. 538 sq. ft. (50 m²). Actual coverage depends on insulation, ceiling height, and climate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness:\u003c\/strong\u003e Requires an exterior wall thickness between 4.5\" and 12.6\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearances:\u003c\/strong\u003e 7\" from floor, 6\" from sides, 24\" from top.\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eThe Cabin Depot® recommends qualified installers and accepts no liability for customer installations.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr style=\"border-top: 1px solid #FFC107; margin: 20px 0;\"\u003e\n\u003cp style=\"font-size: 0.9em; margin-top: 15px;\"\u003e\u003cstrong\u003eHaving trouble with your heater? We can help with troubleshooting!\u003c\/strong\u003e\u003c\/p\u003e\n\u003c!-- Technical Support --\u003e\n\u003cp style=\"font-size: 0.9em; margin-bottom: 5px;\"\u003e\u003cstrong\u003eTechnical Support (The Cabin Depot):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 5px;\"\u003e\u003ca style=\"font-weight: bold; color: #d32f2f;\" href=\"https:\/\/share.hsforms.com\/1gcABoX2FRCa8LnBu0QtmFgrbc1e\" target=\"_blank\"\u003eRequest Technical Support\u003c\/a\u003e\u003c\/p\u003e\n\u003c!-- Warranty Claims --\u003e\n\u003cp style=\"font-size: 0.9em; margin-top: 15px; margin-bottom: 5px;\"\u003e\u003cstrong\u003eWarranty Claims (Manufacturer):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 5px;\"\u003e\u003ca style=\"font-weight: bold;\" href=\"https:\/\/offgriddistribution.com\/pages\/bismar-martin-heaters-technical-support\" target=\"_blank\"\u003eSubmit Warranty Claim to Martin\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch1 style=\"text-align: center;\"\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cdiv class=\"table-container\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMartin 20,000 BTU Direct Vent Heater (With Visor)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMartin (Bismar Inc.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMDV20VN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFuel Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNatural Gas\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum BTU Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20,000 BTU\/hr (Variable down to 6,000)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThermal Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16,000 BTU\/hr (80% Efficiency)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeating Area\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 538 sq. ft. (50 m²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWall Thickness Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-1\/2\" to 12-5\/8\" (11.5cm - 32cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (W x D x H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e26\" x 8-1\/4\" x 22-5\/8\" (66 cm x 21 cm x 57.5 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e47.4 lbs (21.5 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIgnition Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiezo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThermostat\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBuilt-in (Hi-Lo Dial)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWindow\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGlass-Ceramic Visor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 Year Parts \/ Lifetime Combustion Chamber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eContents\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHeater Unit, Vent Installation Kit, Wall Template, Manual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"text-align: center; margin-top: 20px;\"\u003ePowerful, silent warmth for your home or cabin.\u003c\/h3\u003e\n\u003c\/main\u003e","brand":"Martin","offers":[{"title":"Default Title","offer_id":48887796302075,"sku":"CAM-5L(black)ptwhwep","price":1199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0814\/2720\/2299\/files\/bismar-heating-default-title-martin-natural-gas-direct-vent-heater-20000-btu-mdv20vn-33517267091553.jpg?v=1779652375","url":"https:\/\/fpp3ct-5i.myshopify.com\/products\/martin-natural-gas-direct-vent-heater-mdv20vn-20000-btu","provider":"Mary","version":"1.0","type":"link"}