{"product_id":"12-000-btu-heat-and-cool-window-air-conditioner-r32","title":"Keystone - 12, 000 BTU Heat and Cool Window Air Conditioner, R32  -  KSTHW12B","description":"\u003ch2\u003e\u003cspan\u003eKeystone - 12, 000 BTU Heat and Cool Window Air Conditioner, R32  -  KSTHW12B\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eAt Keystone, your family’s comfort starts here. Keystone's budget-friendly heat\/cool 230V window\/wall air conditioner is designed with a removable chassis so you can install it either in a window or through an exterior wall. Our two-in-one installation marvel includes an adjustable window kit for convenient window installation. For wall installation, you can use an existing compatible wall sleeve or purchase one of ours separately. In addition to cooling, this versatile unit also offers supplemental heat capability, providing you with an additional heat source to your main heat source when outdoor temperatures are above 45 degrees Fahrenheit. This unit requires a special 230-volt\/20-amp electrical outlet and will not operate with a standard 115V household electrical outlet. It is packed with money-saving features including energy saver mode, sleep mode and a programmable 24-hour timer. Add the convenience of our easy-to-use Follow Me LCD remote control, and everyone can relax in blissful comfort.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv class=\"mt3 bold gray-5\"\u003e\n\u003cul class=\"m-0\"\u003e\n\u003cli\u003eReliable Heat \u0026amp; Cool: Our powerful 12,000 BTU cooling capacity \/ 1,000 BTU supplemental heating capacity wall unit can efficiently provide comfort all year long for your living room, garage, multiple rooms on the same floor - any large space up to 550 Sq.Ft.\u003c\/li\u003e\n\u003cli\u003eAll in One Unit: Enjoy powerful cooling, supplemental heating, dehumidification up to 2.5 pints per hour, and fan circulation all in one compact unit with on-board electronic controls, 3 fan speeds, sleep function, and a programmable 24-hour on\/off timer.\u003c\/li\u003e\n\u003cli\u003eSmart Remote Control: The I Sense remote control takes the temperature of the room you are in, displays it on the remote's LCD screen and sends a signal to your AC unit every 3 minutes for accurate cooling, no matter where you are in your home.\u003c\/li\u003e\n\u003cli\u003ePowerful Cooling on a Budget: Our Energy Star certified AC will give your electric bill a break by using the 'Energy Saver' or Sleep' mode. These smart features automatically program your unit to use less energy while providing the same amount of comfort.\u003c\/li\u003e\n\u003cli\u003eSpace Saving Design: Save your floor space with this window-mounted air conditioner. Window installation kit included. Minimum window height: 16.5 inches, window width dimensions: 26.8\" minimum \/ 36\" maximum\u003c\/li\u003e\n\u003cli\u003eHeat\/Cool air conditioner with removable chassis for window and wall installation\u003c\/li\u003e\n\u003cli\u003eSpecial 230-volt\/20-amp electrical outlet required (Unit will not work with a standard 115V outlet)\u003c\/li\u003e\n\u003cli\u003e12,000\/11,600 BTU cooling capacity \/ 11,000 BTU supplemental heating capacity\u003c\/li\u003e\n\u003cli\u003eSupplemental heat capability provides an additional heat source to your main heat source when outdoor temperatures are above 45°F\u003c\/li\u003e\n\u003cli\u003eDesigned for a room up to 550 sq. ft. with dehumidification up to 2.5 pints per hour\u003c\/li\u003e\n\u003cli\u003eIndoor Noise Level dBA (Hi\/Med\/Lo): 60.9 \/ 58.3 \/ 54.7\u003c\/li\u003e\n\u003cli\u003eElectronic controls with LED display allows you to easily select options with the touch of a button\u003c\/li\u003e\n\u003cli\u003eTemperature sensing LCD remote control allows you control the temperature from across the room\u003c\/li\u003e\n\u003cli\u003eAuto-restart saves your settings for when power is restored to the unit\u003c\/li\u003e\n\u003cli\u003eAdjustable 4-way air flow direction allows you to easily control the direction of the cool air\u003c\/li\u003e\n\u003cli\u003e3 cooling speeds, 3 fan speeds, and 1 heat speed for multi-seasonal use\u003c\/li\u003e\n\u003cli\u003eProgrammable 24-hour on\/off timer cools on your schedule\u003c\/li\u003e\n\u003cli\u003eEnergy Saver function conserves energy and saves you money\u003c\/li\u003e\n\u003cli\u003eSleep function gradually increases room temperature after being activated\u003c\/li\u003e\n\u003cli\u003eEasy-clean, tilt-out mesh filter with Check Filter alert on the unit\u003c\/li\u003e\n\u003cli\u003e6.5-ft. LCDI power cord with NEMA 6-20P plug makes extension cords unnecessary\u003c\/li\u003e\n\u003cli\u003eAdjustable, pleated window mounting kit included for window installation\u003c\/li\u003e\n\u003cli\u003eMinimum window height: 16.5 inches\u003c\/li\u003e\n\u003cli\u003eWindow width dimensions: 26.8\" minimum \/ 36\" maximum\u003c\/li\u003e\n\u003cli\u003eU.L. safety listing (SA12388)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003cstyle type=\"text\/css\"\u003e\n.tg  {border-collapse:collapse;border-spacing:0;}\n.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;\n  overflow:hidden;padding:10px 5px;word-break:normal;}\n.tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;\n  font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;}\n.tg .tg-cly1{text-align:left;vertical-align:middle}\n.tg .tg-oevy{background-color:#ffffff;border-color:#000000;color:#000000;font-weight:bold;text-align:left;vertical-align:top}\n\u003c\/style\u003e\n\u003ctable class=\"tg\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"tg-oevy\"\u003eModel Number\u003c\/th\u003e\n\u003cth class=\"tg-cly1\"\u003eKSTHW12B\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eBrand\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eKeystone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eCategory\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eAir Conditioners\/Window Heat\/Cool\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eMfr ID\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eKEYSTN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eUPS Shippable\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eUPC Code\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e840148726765\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eCN-China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eProduct Dimensions English\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eNOTE: The dBA levels on this unit are NOT in the quiet range! (Quiet = 47-52 dBA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads \u0026amp; Manual\u003c\/h5\u003e\n\u003cul class=\"fa-ul mb-0\"\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/assetserver.net\/_assets\/_videos\/keystone_window_ac_install_ryan_turano_1.mp4\" target=\"_blank\"\u003eProduct Video\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ci aria-hidden=\"true\" class=\"fa-li fa fa-file-pdf-o\"\u003e\u003c\/i\u003e\u003ca href=\"https:\/\/access.almo.com\/Product\/PDF\/SpecSheet\/KEYSTN\/KSTHW12B\" target=\"_blank\"\u003eCustom Spec Sheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eWhat our Experts Think\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli data-start=\"27\" data-end=\"166\"\u003e\n\u003cp data-start=\"29\" data-end=\"166\"\u003e\u003cstrong data-start=\"29\" data-end=\"52\"\u003eYear‑Round Comfort:\u003c\/strong\u003e Heat \u0026amp; cool function makes this unit versatile for all seasons — a top search intent for \u003cem data-start=\"142\" data-end=\"163\"\u003edual‑mode window AC\u003c\/em\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"167\" data-end=\"293\"\u003e\n\u003cp data-start=\"169\" data-end=\"293\"\u003e\u003cstrong data-start=\"169\" data-end=\"190\"\u003e12,000 BTU Power:\u003c\/strong\u003e Ideal for medium‑sized rooms (~450 sq ft), matching high‑traffic queries like \u003cem data-start=\"269\" data-end=\"290\"\u003ewindow AC with heat\u003c\/em\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"294\" data-end=\"462\"\u003e\n\u003cp data-start=\"296\" data-end=\"462\"\u003e\u003cstrong data-start=\"296\" data-end=\"329\"\u003eEco‑Friendly R32 Refrigerant:\u003c\/strong\u003e Modern, low‑GWP refrigerant appeals to environmentally conscious shoppers and boosts relevance for \u003cem data-start=\"429\" data-end=\"459\"\u003eeco‑friendly air conditioner\u003c\/em\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"463\" data-end=\"592\"\u003e\n\u003cp data-start=\"465\" data-end=\"592\"\u003e\u003cstrong data-start=\"465\" data-end=\"496\"\u003eEnergy‑Efficient Operation:\u003c\/strong\u003e Helps reduce electricity costs, supporting SEO terms like \u003cem data-start=\"555\" data-end=\"589\"\u003eefficient window air conditioner\u003c\/em\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"593\" data-end=\"720\"\u003e\n\u003cp data-start=\"595\" data-end=\"720\"\u003e\u003cstrong data-start=\"595\" data-end=\"625\"\u003eQuiet, Stable Performance:\u003c\/strong\u003e Balanced cooling\/heating with reduced noise — a strong match for \u003cem data-start=\"691\" data-end=\"708\"\u003equiet window AC\u003c\/em\u003e searches.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"721\" data-end=\"846\"\u003e\n\u003cp data-start=\"723\" data-end=\"846\"\u003e\u003cstrong data-start=\"723\" data-end=\"751\"\u003eEasy Installation \u0026amp; Fit:\u003c\/strong\u003e Standard window design simplifies setup and aligns with \u003cem data-start=\"808\" data-end=\"830\"\u003eeasy install AC unit\u003c\/em\u003e search phrases.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\n\u003cbr\u003eQ\u0026amp;A\u003c\/h5\u003e\n\u003cp data-start=\"89\" data-end=\"344\"\u003e\u003cstrong data-start=\"89\" data-end=\"119\"\u003eQ: What does this unit do?\u003c\/strong\u003e\u003cbr data-start=\"119\" data-end=\"122\"\u003eA: The \u003cstrong data-start=\"129\" data-end=\"170\"\u003e\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eKeystone KSTHW12B\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e provides both \u003cstrong data-start=\"185\" data-end=\"207\"\u003e12,000 BTU cooling\u003c\/strong\u003e and \u003cstrong data-start=\"212\" data-end=\"247\"\u003e11,000 BTU supplemental heating\u003c\/strong\u003e in one window‑mounted unit — ideal for year‑round comfort. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"346\" data-end=\"537\"\u003e\u003cstrong data-start=\"346\" data-end=\"387\"\u003eQ: What room size is it suitable for?\u003c\/strong\u003e\u003cbr data-start=\"387\" data-end=\"390\"\u003eA: It’s designed to cool and heat spaces up to \u003cstrong data-start=\"437\" data-end=\"451\"\u003e~550 sq ft\u003c\/strong\u003e, such as living rooms, bedrooms, or apartments. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"539\" data-end=\"744\"\u003e\u003cstrong data-start=\"539\" data-end=\"586\"\u003eQ: What electrical requirements are needed?\u003c\/strong\u003e\u003cbr data-start=\"586\" data-end=\"589\"\u003eA: This model \u003cstrong data-start=\"603\" data-end=\"643\"\u003erequires a special 230 V\/20 A outlet\u003c\/strong\u003e and will \u003cstrong data-start=\"653\" data-end=\"705\"\u003enot operate on a standard 115 V household outlet\u003c\/strong\u003e. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"746\" data-end=\"1001\"\u003e\u003cstrong data-start=\"746\" data-end=\"803\"\u003eQ: Does it include remote control and easy operation?\u003c\/strong\u003e\u003cbr data-start=\"803\" data-end=\"806\"\u003eA: Yes — it comes with a \u003cstrong data-start=\"831\" data-end=\"865\"\u003etemperature‑sensing LCD remote\u003c\/strong\u003e, \u003cstrong data-start=\"867\" data-end=\"894\"\u003eLED electronic controls\u003c\/strong\u003e, auto‑restart, and a \u003cstrong data-start=\"916\" data-end=\"946\"\u003eprogrammable 24‑hour timer\u003c\/strong\u003e for convenience. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1003\" data-end=\"1186\"\u003e\u003cstrong data-start=\"1003\" data-end=\"1046\"\u003eQ: What refrigerant does this unit use?\u003c\/strong\u003e\u003cbr data-start=\"1046\" data-end=\"1049\"\u003eA: It uses \u003cstrong data-start=\"1060\" data-end=\"1079\"\u003eR32 refrigerant\u003c\/strong\u003e, which improves efficiency and has a lower global warming potential. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1188\" data-end=\"1408\"\u003e\u003cstrong data-start=\"1188\" data-end=\"1225\"\u003eQ: Can it replace my main heater?\u003c\/strong\u003e\u003cbr data-start=\"1225\" data-end=\"1228\"\u003eA: No — the heating mode is \u003cstrong data-start=\"1256\" data-end=\"1272\"\u003esupplemental\u003c\/strong\u003e and meant to \u003cstrong data-start=\"1286\" data-end=\"1339\"\u003esupport (not replace) your primary heating system\u003c\/strong\u003e when temps are above freezing. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1410\" data-end=\"1635\"\u003e\u003cstrong data-start=\"1410\" data-end=\"1458\"\u003eQ: What additional features help efficiency?\u003c\/strong\u003e\u003cbr data-start=\"1458\" data-end=\"1461\"\u003eA: It includes \u003cstrong data-start=\"1476\" data-end=\"1497\"\u003eenergy saver mode\u003c\/strong\u003e, \u003cstrong data-start=\"1499\" data-end=\"1513\"\u003esleep mode\u003c\/strong\u003e, and adjustable airflow with 3 fan and cooling speeds for comfort and cost savings.\u003c\/p\u003e\n\u003ch5\u003e\n\u003cbr\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cdiv class=\"flex flex-col text-sm pb-25\"\u003e\n\u003carticle class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:c2043335-b710-47e9-9900-329715fdbce6-4\" data-testid=\"conversation-turn-10\" data-scroll-anchor=\"true\" data-turn=\"assistant\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:--spacing(4)] @w-sm\/main:[--thread-content-margin:--spacing(6)] @w-lg\/main:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"2edb3f2e-07e7-48a9-8b9b-0e29f0644d69\" dir=\"auto\" data-message-model-slug=\"gpt-5-mini\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[1px]\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling\"\u003e\n\u003cul data-start=\"0\" data-end=\"497\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-start=\"0\" data-end=\"98\"\u003e\n\u003cp data-start=\"2\" data-end=\"98\"\u003eClean the washable air filter every 30 days to maintain airflow and heating\/cooling efficiency\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"99\" data-end=\"191\"\u003e\n\u003cp data-start=\"101\" data-end=\"191\"\u003eVacuum or gently brush evaporator and condenser coils seasonally to prevent dust buildup\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"192\" data-end=\"262\"\u003e\n\u003cp data-start=\"194\" data-end=\"262\"\u003eKeep rear and side vents clear of obstructions for optimal airflow\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"263\" data-end=\"337\"\u003e\n\u003cp data-start=\"265\" data-end=\"337\"\u003eCheck and clear drain holes to prevent water leaks during cooling mode\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"338\" data-end=\"424\"\u003e\n\u003cp data-start=\"340\" data-end=\"424\"\u003eInspect window seals to reduce energy loss and improve heating\/cooling performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"425\" data-end=\"497\" data-is-last-node=\"\"\u003e\n\u003cp data-start=\"427\" data-end=\"497\" data-is-last-node=\"\"\u003eUnplug, clean, and cover the unit during off-season to extend lifespan\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e","brand":"Keystone","offers":[{"title":"Default Title","offer_id":45273337266367,"sku":"KSTHW12B","price":474.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/imageHandler_91f64368-e3ce-4187-bbdf-ed8c5a7deb64.jpg?v=1773242113","url":"https:\/\/backyardprovider.com\/products\/12-000-btu-heat-and-cool-window-air-conditioner-r32","provider":"Your Outdoor Setup Starts Here","version":"1.0","type":"link"}