{"product_id":"crankcase-heater-40w-240v-12-inch-bolt-on-universal-compressor","title":"Crankcase Heater 40W 240V 12 Inch Bolt-On Universal Compressor","description":"\u003cdiv class=\"product-content\"\u003e\n  \u003cdiv class=\"product-description\"\u003e\n    \u003ch2\u003eCrankcase Heater 40W 240V 12 Inch Bolt-On Universal Compressor\u003c\/h2\u003e\n    \u003cp\u003eA 40W compressor crankcase heater that prevents liquid refrigerant from migrating into the compressor oil during off cycles. Critical for heat pump systems and AC units in cold climates where refrigerant migration can cause compressor damage on startup.\u003c\/p\u003e\n    \u003ch3\u003eKey Features\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eBolt-on mounting for secure attachment to compressor body\u003c\/li\u003e\n\u003cli\u003e40W output for standard residential compressors\u003c\/li\u003e\n\u003cli\u003e240V operation — connects to line voltage at the disconnect\u003c\/li\u003e\n\u003cli\u003eMaintains oil temperature above refrigerant condensation point\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eSpecifications\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eWattage: 40W\u003c\/li\u003e\n\u003cli\u003eVoltage: 240V\u003c\/li\u003e\n\u003cli\u003eLength: 12 inches\u003c\/li\u003e\n\u003cli\u003eStyle: Bolt-on\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eWhat's Included\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eCrankcase heater\u003c\/li\u003e\n\u003cli\u003eMounting hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003cp\u003e\u003cstrong\u003eShips same-day\u003c\/strong\u003e from our Houston warehouse on orders placed before 3PM CST.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"product-faq\"\u003e\n    \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eWhen do I need a crankcase heater?\u003c\/h4\u003e\n\u003cp\u003eCrankcase heaters are recommended for heat pumps in cold climates, AC units that sit idle for extended periods, and any system where liquid refrigerant migration has caused compressor failures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eDoes the heater run all the time?\u003c\/h4\u003e\n\u003cp\u003eIt runs during the compressor off cycle to keep the oil warm. It automatically shuts off when the compressor runs (the compressor generates its own heat). Many contractors wire it to run continuously during the heating season.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eHow do I know what wattage to choose?\u003c\/h4\u003e\n\u003cp\u003e40W is standard for residential compressors up to 3 tons. 70W is recommended for larger compressors (3.5-5 ton) or extremely cold climates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eWill this increase my electric bill?\u003c\/h4\u003e\n\u003cp\u003eA 70W heater running 12 hours per day costs roughly $2-3 per month. This is minimal compared to the cost of a compressor replacement due to liquid slugging.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63004087910771,"sku":"NHVAC-HARD-FTUOZM","price":22.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/61ZYRyuQVdL._AC_SL1500.jpg?v=1781918103","url":"https:\/\/nationalhvacparts.com\/products\/crankcase-heater-40w-240v-12-inch-bolt-on-universal-compressor","provider":"National HVAC Parts","version":"1.0","type":"link"}