{"product_id":"evenheat-knife-oven-ko-27","title":"Evenheat Knife Oven - KO 27","description":"\u003cstyle\u003e\n.d{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Arial,sans-serif;color:#111;line-height:1.6;width:100%;max-width:100%;display:block!important}\n.d *{box-sizing:border-box}\n.d-intro{padding-bottom:36px;margin-bottom:44px;border-bottom:2px solid #111;display:block}\n.d-kicker{font-size:0.72em;letter-spacing:0.16em;text-transform:uppercase;color:#FF8C42;font-weight:700;margin-bottom:12px;display:block}\n.d-title{font-size:1.9em;font-weight:700;color:#000;line-height:1.15;margin-bottom:12px;display:block}\n.d-meta{font-size:0.88em;color:#888;display:block;margin-bottom:20px}\n.d-meta b{color:#bbb;margin:0 7px;font-weight:400}\n.d-lead{font-size:0.97em;color:#444;line-height:1.9;display:block}\n.d-glance{display:grid!important;grid-template-columns:repeat(4,1fr);border:1px solid #e0e0e0;margin-bottom:64px}\n.d-gi{padding:16px 18px;border-right:1px solid 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#e8e8e8;display:block}\n.d-faq-item:last-child{border-bottom:none;padding-bottom:0}\n.d-q{font-size:0.88em;font-weight:700;color:#111;margin-bottom:9px;display:block}\n.d-a{font-size:0.84em;color:#555;line-height:1.85;display:block}\n.d-cta{background:#f5f0eb;border:1px solid #e0d5c8;border-left:3px solid #FF8C42;padding:28px 32px;margin-top:52px;display:flex!important;justify-content:space-between;align-items:center;gap:24px}\n.d-cta-title{font-size:0.97em;font-weight:700;color:#111;display:block;margin-bottom:6px}\n.d-cta-sub{font-size:0.84em;color:#555;line-height:1.65;display:block}\n.d-cta-link{font-size:0.72em;letter-spacing:0.12em;text-transform:uppercase;color:#FF8C42;font-weight:700;text-decoration:none;white-space:nowrap;flex-shrink:0;border:1px solid #FF8C42;padding:10px 16px;display:inline-block}\n.d-cta-link:hover{background:#FF8C42;color:#fff}\n@media(max-width:640px){.d-glance,.d-grid2,.d-uf{grid-template-columns:1fr 1fr}.d-gi:nth-child(2){border-right:none}.d-gi:nth-child(-n+2){border-bottom:1px solid #e0e0e0}.d-cell,.d-uf li{border-right:none!important}.d-sr{grid-template-columns:1fr}.d-sk{border-right:none;border-bottom:1px solid #e8e8e8;padding-bottom:4px}.d-cta{flex-direction:column;align-items:flex-start}}\n\u003c\/style\u003e\n\n\u003cdiv class=\"d\"\u003e\n\n\u003cdiv class=\"d-intro\"\u003e\n  \u003cspan class=\"d-kicker\"\u003eEvenheat  ·  Heat Treating Oven  ·  KO Series\u003c\/span\u003e\n  \u003cspan class=\"d-title\"\u003eEvenheat Knife Oven - KO 27\u003c\/span\u003e\n  \u003cspan class=\"d-meta\"\u003eModel EH-KO-27 \u003cb\u003e·\u003c\/b\u003e 240V \u003cb\u003e·\u003c\/b\u003e 9\"W × 9\"H × 27\"D \u003cb\u003e·\u003c\/b\u003e 2400°F Max\u003c\/span\u003e\n  \u003cspan class=\"d-lead\"\u003eThe KO 27 is Evenheat's deepest heat treating oven, purpose-built for bladesmiths working with long, heavy blades and high-mass loads. With 3-inch firebrick insulation, special high-temperature alloy elements, and a side-opening door that keeps scorching heat away from you during quenching, this is the serious knifemaker's choice for precise, repeatable heat treatment up to 2400°F.\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"d-glance\"\u003e\n  \u003cdiv class=\"d-gi\"\u003e\n\u003cspan class=\"d-gl\"\u003eMax Temp\u003c\/span\u003e\u003cspan class=\"d-gv\"\u003e2400°F\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"d-gi\"\u003e\n\u003cspan class=\"d-gl\"\u003eChamber\u003c\/span\u003e\u003cspan class=\"d-gv\"\u003e9\" × 9\" × 27\"\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"d-gi\"\u003e\n\u003cspan class=\"d-gl\"\u003eVoltage\u003c\/span\u003e\u003cspan class=\"d-gv\"\u003e240V\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"d-gi\"\u003e\n\u003cspan class=\"d-gl\"\u003eBrick Thickness\u003c\/span\u003e\u003cspan class=\"d-gv\"\u003e3 inches\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"d-section\"\u003e\n  \u003cdiv class=\"d-sh\"\u003eWhat’s included\u003c\/div\u003e\n  \u003cdiv class=\"d-grid2\"\u003e\n    \u003cdiv class=\"d-cell\"\u003e\n\u003cspan class=\"d-cn\"\u003eSide-Opening Door\u003c\/span\u003e\u003cspan class=\"d-cd\"\u003eSwings out 180° to keep the super-heated door well away from you during blade removal and quenching. Eliminates the hazard of a drop-down door design.\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"d-cell\"\u003e\n\u003cspan class=\"d-cn\"\u003eCool-Touch Handle\u003c\/span\u003e\u003cspan class=\"d-cd\"\u003eSpring-loaded phenolic handle at the front of the door stays cool to the touch and operates one-handed as both handle and latch.\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"d-cell\"\u003e\n\u003cspan class=\"d-cn\"\u003eDoor Shield\u003c\/span\u003e\u003cspan class=\"d-cd\"\u003eProvides protection against firebrick damage and reduces the temperature at the door and handle for safer operation.\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"d-cell\"\u003e\n\u003cspan class=\"d-cn\"\u003eQuiet Drive Solid State Relay\u003c\/span\u003e\u003cspan class=\"d-cd\"\u003eEvenheat's patented relay system with no moving parts fires 60 times per second for ultra-tight temperature control without noise or wear.\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"d-cell\"\u003e\n\u003cspan class=\"d-cn\"\u003eHeavy-Duty Stand with Tool Rest\u003c\/span\u003e\u003cspan class=\"d-cd\"\u003eUpgraded stand design with integrated tool rest for staging tongs, quenching equipment, and blade handling tools.\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"d-cell\"\u003e\n\u003cspan class=\"d-cn\"\u003eSwing View Control Enclosure\u003c\/span\u003e\u003cspan class=\"d-cd\"\u003ePivoting enclosure lets you rotate the controller to the perfect viewing angle during programming, then lay it flat for across-the-shop visibility.\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"d-section\"\u003e\n  \u003cdiv class=\"d-sh\"\u003eTechnical specifications\u003c\/div\u003e\n  \u003cdiv class=\"d-specs\"\u003e\n    \u003cdiv class=\"d-sr\"\u003e\n\u003cspan class=\"d-sk\"\u003eModel\u003c\/span\u003e\u003cspan class=\"d-sv\"\u003eKnife Oven KO 27\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"d-sr\"\u003e\n\u003cspan class=\"d-sk\"\u003eSKU\u003c\/span\u003e\u003cspan class=\"d-sv\"\u003eEH-KO-27\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"d-sr\"\u003e\n\u003cspan class=\"d-sk\"\u003eChamber dimensions\u003c\/span\u003e\u003cspan class=\"d-sv\"\u003e9\"W × 9\"H × 27\"D\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"d-sr\"\u003e\n\u003cspan class=\"d-sk\"\u003eCubic feet\u003c\/span\u003e\u003cspan class=\"d-sv\"\u003e1.27 cu. ft.\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"d-sr\"\u003e\n\u003cspan class=\"d-sk\"\u003eMaximum temperature\u003c\/span\u003e\u003cspan class=\"d-sv\"\u003e2400°F (1316°C)\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"d-sr\"\u003e\n\u003cspan class=\"d-sk\"\u003eVoltage\u003c\/span\u003e\u003cspan class=\"d-sv\"\u003e240V\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"d-sr\"\u003e\n\u003cspan class=\"d-sk\"\u003eAmperage\u003c\/span\u003e\u003cspan class=\"d-sv\"\u003e40A\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"d-sr\"\u003e\n\u003cspan class=\"d-sk\"\u003eWatts\u003c\/span\u003e\u003cspan class=\"d-sv\"\u003e9600W\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"d-sr\"\u003e\n\u003cspan class=\"d-sk\"\u003eBrick thickness\u003c\/span\u003e\u003cspan class=\"d-sv\"\u003e3 inches\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"d-sr\"\u003e\n\u003cspan class=\"d-sk\"\u003eEstimated shipping weight\u003c\/span\u003e\u003cspan class=\"d-sv\"\u003e350 lbs\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"d-sr\"\u003e\n\u003cspan class=\"d-sk\"\u003eWarranty\u003c\/span\u003e\u003cspan class=\"d-sv\"\u003e2-year limited (registration required within 30 days)\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cspan class=\"d-warranty\"\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e Two-year limited warranty from Evenheat. Must be registered within 30 days of delivery. Valid only through authorized dealers — Peach State Pottery is an authorized Evenheat dealer.\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"d-section\"\u003e\n  \u003cdiv class=\"d-sh\"\u003eOptional accessories\u003c\/div\u003e\n  \u003cdiv class=\"d-grid2\"\u003e\n    \u003cdiv class=\"d-cell\"\u003e\n\u003cspan class=\"d-cn\"\u003eStainless Steel Work Racks\u003c\/span\u003e\u003cspan class=\"d-cd\"\u003eCustom-sized racks for supporting multiple blades during heat treatment. Built from high-temp stainless for durability and easy cleaning.\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"d-cell\"\u003e\n\u003cspan class=\"d-cn\"\u003eSpare Thermocouple\u003c\/span\u003e\u003cspan class=\"d-cd\"\u003eType K thermocouple as backup for your primary temperature sensor. Critical for uninterrupted heat treating schedules.\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"d-cell\"\u003e\n\u003cspan class=\"d-cn\"\u003eBrick Repair Kit\u003c\/span\u003e\u003cspan class=\"d-cd\"\u003eHigh-temperature mortar and patching compound for maintaining firebrick integrity over years of service.\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"d-cell\"\u003e\n\u003cspan class=\"d-cn\"\u003eElement Replacement Set\u003c\/span\u003e\u003cspan class=\"d-cd\"\u003eFull set of special high-temperature alloy elements designed specifically for the KO Series heat treating ovens.\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"d-cell\"\u003e\n\u003cspan class=\"d-cn\"\u003eProtective Heat Gloves\u003c\/span\u003e\u003cspan class=\"d-cd\"\u003eHeavy-duty gloves rated for high-temperature blade handling during transfers from oven to quench tank.\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"d-cell\"\u003e\n\u003cspan class=\"d-cn\"\u003eDigital Timer with Alarm\u003c\/span\u003e\u003cspan class=\"d-cd\"\u003eStandalone timing solution with audible alerts for multi-stage heat treating processes and precise soak times.\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"d-section\"\u003e\n  \u003cdiv class=\"d-sh\"\u003eController upgrades\u003c\/div\u003e\n  \u003cdiv class=\"d-upgrade\"\u003e\n    \u003cdiv class=\"d-utop\"\u003e\n\u003cspan class=\"d-un\"\u003eTAP Touchscreen — SDS Industries\u003c\/span\u003e\u003cspan class=\"d-ut\"\u003eTop Tier\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cspan class=\"d-ud\"\u003eFor bladesmiths running complex heat treating cycles with precise soak times and controlled cooling rates, TAP delivers lab-grade control with modern connectivity. Monitor critical austenitizing temperatures from your phone and get alerts when it's time to quench—no more standing by the oven for 20-minute soaks.\u003c\/span\u003e\n    \u003cul class=\"d-uf\"\u003e\n      \u003cli\u003eUnlimited programs and firing steps\u003c\/li\u003e\n      \u003cli\u003eTAP mobile app — monitor from your phone\u003c\/li\u003e\n      \u003cli\u003ePush notifications when firing completes\u003c\/li\u003e\n      \u003cli\u003eAdjust temp or add time mid-firing\u003c\/li\u003e\n      \u003cli\u003eAuto-updates over Wi-Fi\u003c\/li\u003e\n      \u003cli\u003eFiring logs and maintenance schedules\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"d-upgrade\"\u003e\n    \u003cdiv class=\"d-utop\"\u003e\n\u003cspan class=\"d-un\"\u003eGenesis Spark — Bartlett Instruments\u003c\/span\u003e\u003cspan class=\"d-ut\"\u003eGreat Value\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cspan class=\"d-ud\"\u003eThe Genesis Spark delivers professional-grade heat treating control at a mid-range price point, with plenty of program memory for your steel library and ramp\/hold precision for consistent results. Touchscreen programming is faster than traditional button controllers, and Wi-Fi connectivity ensures your firmware stays current.\u003c\/span\u003e\n    \u003cul class=\"d-uf\"\u003e\n      \u003cli\u003e30 programs × 32 segments each\u003c\/li\u003e\n      \u003cli\u003e3.2″ color touchscreen display\u003c\/li\u003e\n      \u003cli\u003eWi-Fi for remote updates and diagnostics\u003c\/li\u003e\n      \u003cli\u003eCone fire and ramp\/hold modes\u003c\/li\u003e\n      \u003cli\u003ePreheat capability built in\u003c\/li\u003e\n      \u003cli\u003eAdjust firing in real time\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"d-section\"\u003e\n  \u003cdiv class=\"d-sh\"\u003eCommon questions\u003c\/div\u003e\n  \u003cdiv class=\"d-faq-item\"\u003e\n\u003cspan class=\"d-q\"\u003eWill this oven handle the steels I'm working with?\u003c\/span\u003e\u003cspan class=\"d-a\"\u003eAt 2400°F maximum, the KO 27 exceeds the austenitizing temperature of every common blade steel—including high-alloy steels like CPM-154, S30V, and even demanding stainless grades like 440C. You'll have headroom above your target temperature for faster recovery when the door opens.\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"d-faq-item\"\u003e\n\u003cspan class=\"d-q\"\u003eWhy is the 27-inch depth important?\u003c\/span\u003e\u003cspan class=\"d-a\"\u003eThe 27-inch chamber depth is designed for long blades—swords, machetes, large bowies, and chef knives up to about 24 inches. If you're working with shorter blades (under 18 inches), consider the KO 18. The deep chamber also accommodates multiple shorter blades staged vertically on racks for batch heat treating.\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"d-faq-item\"\u003e\n\u003cspan class=\"d-q\"\u003eWhat's the advantage of the side-opening door?\u003c\/span\u003e\u003cspan class=\"d-a\"\u003eHeat treating requires fast blade removal for quenching. A drop-down door puts a 2000°F+ surface directly in your path, radiating intense heat at your hands, arms, and face. The side-opening door swings completely out of your way—up to 180°—keeping that radiant heat away from you while you focus on safely transferring the blade to the quench tank.\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"d-faq-item\"\u003e\n\u003cspan class=\"d-q\"\u003eDo I need a special electrical circuit for this oven?\u003c\/span\u003e\u003cspan class=\"d-a\"\u003eYes. The KO 27 requires a dedicated 240V, 40-amp circuit. This is standard for heat treating equipment of this capacity. You'll need a licensed electrician to install the appropriate breaker and receptacle—budget $300–$800 depending on distance from your electrical panel and local rates.\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"d-faq-item\"\u003e\n\u003cspan class=\"d-q\"\u003eDoes buying from Peach State Pottery affect my warranty?\u003c\/span\u003e\u003cspan class=\"d-a\"\u003eNo. We are an authorized Evenheat dealer. Your two-year warranty is fully valid and you have direct access to Evenheat’s support team. Buying from an unauthorized seller can void your warranty entirely.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"d-cta\"\u003e\n  \u003cdiv\u003e\n    \u003cspan class=\"d-cta-title\"\u003eNot sure if the EH-KO-27 is right for you?\u003c\/span\u003e\n    \u003cspan class=\"d-cta-sub\"\u003eWe’re authorized Evenheat dealers based in Atlanta. Call, email, or chat — we’ll give you a straight answer about specs, sizing, and accessories before you spend a dollar.\u003c\/span\u003e\n  \u003c\/div\u003e\n  \u003ca href=\"https:\/\/peachstatepottery.com\/pages\/contact-us\" class=\"d-cta-link\"\u003eTalk to an expert →\u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Evenheat","offers":[{"title":"Default Title","offer_id":48721669423259,"sku":"EH-KO-27","price":2923.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/7160\/9243\/files\/evenheat-evenheat-knife-oven-ko-225-kiln-soul-ceramics_0e6a5bb2-5356-4a6d-bd2e-bddbc4d92389.jpg?v=1781046070","url":"https:\/\/peachstatepottery.com\/products\/evenheat-knife-oven-ko-27","provider":"Peach State Pottery","version":"1.0","type":"link"}