{"product_id":"huum-uku-extension-box","title":"HUUM UKU Extension Box for HIVE 12, 15 and 18 Heaters","description":"\u003cstyle\u003e.hukux{--ink:#1A1410;--body:#463C33;--mut:#54493D;--accent:#96620A;--bright:#E8A33D;--dark:#171310;--sub:#54493D;--tint:#F7F1E6;--fill:#F0E9DB;--hl:#F6E7CB;--line:#DCCFB4;--warm:#DCCFB4;--edge:#CBBBA0;--rule:#DCCFB4;--r-lg:10px;--r-sm:10px;--r-xs:999px;--gut:20px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--body);line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;background:#fff}.hukux *{box-sizing:border-box}.hukux .hukux-c img{margin:0 !important;border:0}.hukux .hukux-c{max-width:1000px;margin:0 auto;padding:0 20px}.hukux section{padding:52px 0}.hukux section:first-of-type{padding-top:26px}.hukux section.hukux-tinted{background:var(--tint)}.hukux section + section.hukux-tinted,.hukux section.hukux-tinted + section{border-top:1px solid var(--warm)}.hukux 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.hukux-vid{--arn:1.7778;--cap:420px;flex:0 1 auto;width:min(100%,calc(var(--cap) * var(--arn)));aspect-ratio:var(--arn);border-radius:var(--r-lg);overflow:hidden;background:var(--dark);position:relative;box-shadow:0 10px 30px rgba(23,19,16,.18);display:flex;align-items:center;justify-content:center;color:#9C8F80;font-family:var(--mono);font-size:11px;text-align:center;padding:18px;line-height:1.65}.hukux .hukux-vidbody{flex:1 1 340px;min-width:0;max-width:none;display:flex;flex-direction:column;justify-content:center}.hukux .hukux-vidbody h2{margin:0 0 16px}.hukux .hukux-vidbody\u003ep:last-child{margin-bottom:0}.hukux .hukux-vidbody p{font-size:15.5px;line-height:1.65;margin:0 0 16px;max-width:56ch}.hukux .hukux-vidmeta{margin:24px 0 0;padding-top:14px;border-top:1px solid var(--warm);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--sub);max-width:none}.hukux .hukux-vidmeta span{display:inline-block;margin-right:24px}.hukux .hukux-vidmeta span:last-child{margin-right:0}.hukux .hukux-vidmeta span::before{content:\"\";display:inline-block;width:4px;height:4px;border-radius:var(--r-xs);background:var(--accent);margin-right:8px;vertical-align:2px}.hukux .hukux-stat3{display:grid;grid-template-columns:repeat(3,1fr);background:var(--dark);border-radius:var(--r-lg);overflow:hidden;margin:24px 0 0}.hukux .hukux-stat3\u003ediv{padding:26px var(--gut);border-right:1px solid rgba(255,255,255,.13)}.hukux .hukux-stat3\u003ediv:last-child{border-right:0}.hukux .hukux-stat3 .hukux-lbl{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--bright);margin:0 0 16px;max-width:none}.hukux .hukux-stat3 .hukux-big{font-size:33px;font-weight:700;color:#fff;line-height:1.2;margin:0 0 8px;letter-spacing:-.02em;font-variant-numeric:tabular-nums;text-wrap:balance;max-width:none}.hukux .hukux-stat3 p{font-size:15.5px;line-height:1.5;color:#C3B6A5;margin:0}.hukux .hukux-chk{list-style:none;padding:0;margin:16px 0 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var(--gut);font-size:11px;font-weight:700;line-height:1.2;letter-spacing:.1em;text-transform:uppercase}.hukux .hukux-buy .req h4,.hukux .hukux-buy .req h3{background:var(--dark);color:#fff}.hukux .hukux-buy .opt h4,.hukux .hukux-buy .opt h3{background:var(--fill);color:var(--ink);border-bottom:1px solid var(--warm)}.hukux .hukux-buy ul{list-style:none;margin:0;padding:4px var(--gut) 12px}.hukux .hukux-buy li{padding:10px 0;border-bottom:1px solid var(--rule);font-size:17px}.hukux .hukux-buy li:last-child{border-bottom:0}.hukux .hukux-buy li span{display:block;color:var(--sub);font-size:15.5px;margin-top:8px}.hukux .hukux-tw{border:1px solid var(--edge);border-radius:var(--r-lg);overflow:hidden;margin:24px 0 0;background:#fff}.hukux .hukux-tw--scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}.hukux table{border-collapse:collapse;width:100%;font-size:15.5px;background:#fff}.hukux table caption{caption-side:top;text-align:left;font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--sub);padding:13px var(--gut);background:var(--fill);border-bottom:1px solid var(--edge)}.hukux table th,.hukux table td{padding:11px var(--gut);text-align:left;border-bottom:1px solid var(--rule);vertical-align:top}.hukux table tr:last-child th,.hukux table tr:last-child td{border-bottom:0}.hukux table.hukux-spec th{color:var(--ink);font-weight:600;width:46%}.hukux table.hukux-spec td{font-variant-numeric:tabular-nums}.hukux .hukux-keyspec caption{background:var(--dark);color:#fff;border-bottom:0}.hukux .hukux-hl td,.hukux .hukux-hl th{background:var(--hl)}.hukux table.cmp{min-width:680px}.hukux table.cmp thead th{vertical-align:bottom;padding-top:14px;padding-bottom:12px}.hukux .hukux-cmp-h{display:block;font-size:11px;font-weight:600;color:var(--sub);line-height:1.2;margin-bottom:8px}.hukux 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var(--gut);background:var(--fill);border:1px solid var(--warm);border-radius:var(--r-lg);position:relative}.hukux .hukux-more\u003esummary::-webkit-details-marker{display:none}.hukux .hukux-more\u003esummary::after{content:\"\";position:absolute;right:var(--gut);top:20px;width:8px;height:8px;border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(45deg)}.hukux .hukux-more[open]\u003esummary::after{transform:rotate(225deg)}.hukux .hukux-rl{font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin:0 0 8px !important}@media screen and (max-width:840px){}.hukux .hukux-faq{border-top:1px solid var(--line);margin-top:16px}.hukux .hukux-faq details{border-bottom:1px solid var(--line)}.hukux .hukux-faq summary{cursor:pointer;padding:17px 36px 17px 0;position:relative;list-style:none;font-size:17px;font-weight:600;color:var(--ink)}.hukux .hukux-faq summary::-webkit-details-marker{display:none}.hukux .hukux-faq summary::after{content:\"\";position:absolute;right:6px;top:25px;width:9px;height:9px;border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(45deg);transition:transform .18s}.hukux .hukux-faq details[open] summary::after{transform:rotate(225deg)}.hukux .hukux-faq .hukux-fb{padding:0 0 18px;max-width:68ch}.hukux .hukux-faq .hukux-fb p{font-size:17px;margin:0 0 8px;color:var(--body)}.hukux .hukux-close{background:var(--dark);color:#C3B6A5;padding:60px 0}.hukux .hukux-close h2{color:#fff;max-width:22ch}.hukux .hukux-close p{color:#C3B6A5;max-width:56ch;font-size:17px}.hukux .hukux-close .hukux-who{display:flex;gap:16px;align-items:center;margin:8px 0 24px}.hukux .hukux-close .hukux-av{width:52px;height:52px;border-radius:var(--r-xs);flex:0 0 auto;object-fit:cover;background:#2E2620;display:block}.hukux .hukux-close .hukux-who p{margin:0;font-size:15.5px;color:#C3B6A5;line-height:1.5}.hukux .hukux-close .hukux-who b{color:#fff;display:block;font-size:17px;margin-bottom:8px}.hukux .hukux-close .hukux-who span{display:block}.hukux .hukux-c .hukux-btn,.hukux .hukux-btn{display:inline-block;background:var(--accent);color:#fff;font-weight:700;font-size:15.5px;line-height:1.5;padding:16px 32px;border-radius:var(--r-sm);text-decoration:none;margin:8px 0 0}.hukux .hukux-c .hukux-btn:hover,.hukux .hukux-btn:hover{background:var(--ink);color:#fff}.hukux .hukux-close .hukux-btn{display:inline-block;background:var(--bright);color:var(--ink);font-weight:700;font-size:15.5px;padding:16px 32px;border-radius:var(--r-sm);text-decoration:none}.hukux .hukux-close .hukux-up{display:block;margin-top:16px;color:#C3B6A5;font-size:15.5px;text-decoration:none;padding:10px 0}@media screen and (max-width:840px){.hukux .hukux-pairup{grid-template-columns:1fr;gap:24px}.hukux .hukux-chk{grid-template-columns:1fr}.hukux .hukux-vidrow{flex-direction:column;align-items:stretch}.hukux .hukux-vid{--cap:380px;align-self:center}.hukux .hukux-vidrow{gap:24px}.hukux .hukux-c{padding:0 16px}.hukux section{padding:40px 0}.hukux section:first-of-type{padding-top:20px}.hukux h2{font-size:23px}.hukux p.hukux-lead{font-size:17px}.hukux .hukux-stat3{grid-template-columns:1fr}.hukux .hukux-stat3\u003ediv{border-right:0;border-bottom:1px solid rgba(255,255,255,.13)}.hukux .hukux-stat3\u003ediv:last-child{border-bottom:0}.hukux .hukux-split{grid-template-columns:1fr;gap:24px}.hukux .hukux-buy{grid-template-columns:1fr}.hukux .hukux-toc ol{grid-template-columns:1fr}}@media screen and (min-width:841px){.hukux .hukux-toc\u003esummary{display:none}.hukux .hukux-toc ol{display:grid !important}}@media screen and (max-width:560px){.hukux .hukux-ladder thead{position:absolute;left:-9999px}.hukux .hukux-ladder tr{display:block;border-bottom:1px solid var(--rule);padding:14px var(--gut)}.hukux .hukux-ladder tr.on{background:var(--hl)}.hukux .hukux-ladder td{display:block;border:0;padding:0}.hukux .hukux-ladder td:last-child{text-align:left;font-size:15.5px;margin-top:8px}}.hukux .hukux-hl td,.hukux .hukux-hl th,.hukux .hukux-ladder tr.on td,.hukux table.cmp td.me{border-bottom-color:var(--edge)}@media screen and (max-width:840px){.hukux table.cmp thead a{min-height:44px;display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:2px}}.rte .hukux table th,.rte .hukux table td{padding:11px var(--gut)}.hukux .hukux-ladder th:last-child,.hukux .hukux-ladder td:last-child{text-align:left;white-space:normal;overflow-wrap:anywhere}.hukux .hukux-buy{align-items:start}.hukux .hukux-buy li span a{display:inline-block;padding:16px 0;margin:-16px 0}.hukux table.cmp td:first-child{position:sticky;left:0;z-index:1;background:#fff;box-shadow:inset 0 -1px 0 var(--rule),1px 0 0 var(--rule)}.hukux table.cmp thead th:first-child{position:sticky;left:0;z-index:2;background:var(--fill)}@media screen and (max-width:560px){.hukux .hukux-ladder td:last-child::before{content:\"Nameplate draw:\\00a0\";font-weight:700;color:var(--ink)}}@media screen and (max-width:480px){.hukux table.hukux-spec th,.hukux table.hukux-spec td{display:block;width:auto}.hukux table.hukux-spec th{border-bottom:0;padding-bottom:0}}.hukux .hukux-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hukux .hukux-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hukux .hukux-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hukux .hukux-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hukux .hukux-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hukux .hukux-close p.hukux-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hukux .hukux-stat3 a{color:var(--bright)}.hukux .hukux-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hukux .hukux-cmp thead a .hukux-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hukux .hukux-ladder.hukux-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hukux .hukux-ladder.hukux-out td:last-child::before{content:\"Output:\\00a0\"}}.hukux .hukux-tw + p,.hukux .hukux-tw + h3,.hukux .hukux-warn + p,.hukux .hukux-warn + h3,.hukux .hukux-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hukux\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hukux-c\"\u003e\n    \u003cdetails class=\"hukux-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hukux-ct\"\u003e5 sections\u003c\/span\u003e\u003c\/summary\u003e\u003col\u003e\n\u003cli\u003e\u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#heaters\"\u003eWhich heaters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#install\"\u003eInstallation\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eQuestions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#order\"\u003eOrder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/details\u003e\n    \u003cp class=\"hukux-eyebrow\"\u003eFor the largest HUUM heaters\u003c\/p\u003e\n    \u003ch2\u003eThe HUUM UKU extension box lets a UKU control run a 12 to 18 kW HIVE\u003c\/h2\u003e\n    \u003cp class=\"hukux-lead\"\u003eA UKU's main module carries up to 11 kW. The HIVE 12, 15 and 18 draw more than that, so they run through this box as well. Every other HUUM heater does without it.\u003c\/p\u003e\n    \u003cdiv class=\"hukux-stat3\"\u003e\n      \u003cdiv\u003e\n\u003cp class=\"hukux-lbl\"\u003eNeeded for\u003c\/p\u003e\n\u003cp class=\"hukux-big\"\u003eHIVE 12, 15, 18\u003c\/p\u003e\n\u003cp\u003eThe only HUUM electric heaters above 11 kW.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003cp class=\"hukux-lbl\"\u003eWorks with\u003c\/p\u003e\n\u003cp class=\"hukux-big\"\u003eUKU Local or Wi-Fi\u003c\/p\u003e\n\u003cp\u003eIt adds capacity to either \u003ca href=\"\/products\/huum-uku-local-sauna-heater-control\"\u003eUKU Local\u003c\/a\u003e or \u003ca href=\"\/products\/huum-uku-wifi-sauna-heater-control\"\u003eUKU Wi-Fi\u003c\/a\u003e; it is not a control by itself.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003cp class=\"hukux-lbl\"\u003eWhere it goes\u003c\/p\u003e\n\u003cp class=\"hukux-big\"\u003eOutside the sauna\u003c\/p\u003e\n\u003cp\u003eOn the wall near the UKU main module.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hukux-tinted\" id=\"heaters\"\u003e\n  \u003cdiv class=\"hukux-c\"\u003e\n    \u003cp class=\"hukux-eyebrow\"\u003eCompatibility\u003c\/p\u003e\n    \u003ch2\u003eWhich HUUM heaters need the UKU extension box\u003c\/h2\u003e\n    \u003cdiv class=\"hukux-tw\"\u003e\u003ctable class=\"hukux-spec\"\u003e\n\u003ccaption\u003eWhat each HUUM heater needs\u003c\/caption\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater\u003c\/th\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput at 240 V\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eUKU setup\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDROP 4, 6, 7, 9\u003c\/th\u003e\n\u003ctd\u003e4.5 to 9 kW\u003c\/td\u003e\n\u003ctd\u003eMain module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCLIFF Mini 4, CLIFF 6, 9, 11\u003c\/th\u003e\n\u003ctd\u003e4 to 11 kW\u003c\/td\u003e\n\u003ctd\u003eMain module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSTEEL Mini 4, STEEL 6, 9, 11\u003c\/th\u003e\n\u003ctd\u003e4 to 11 kW\u003c\/td\u003e\n\u003ctd\u003eMain module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHIVE Mini 6, 9, 11\u003c\/th\u003e\n\u003ctd\u003e6 to 10.6 kW\u003c\/td\u003e\n\u003ctd\u003eMain module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCORE 6, 9, 11\u003c\/th\u003e\n\u003ctd\u003e6.5 to 10.5 kW\u003c\/td\u003e\n\u003ctd\u003eMain module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hukux-hl\"\u003e\n\u003cth\u003eHIVE 12, 15, 18\u003c\/th\u003e\n\u003ctd\u003e12 to 18 kW\u003c\/td\u003e\n\u003ctd\u003eMain module plus extension box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003cp\u003eDealer listings quote several different thresholds for this box. HUUM's current US manuals for both UKU generations say the main module can be used with heaters up to 11 kW, which leaves the HIVE 12, 15 and 18 as the only HUUM heaters that need it.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"install\"\u003e\n  \u003cdiv class=\"hukux-c\"\u003e\n    \u003cp class=\"hukux-eyebrow\"\u003eInstallation\u003c\/p\u003e\n    \u003ch2\u003eInstalling the HUUM UKU extension box\u003c\/h2\u003e\n    \u003cp class=\"hukux-lead\"\u003eIt is wired in by the electrician who connects the heater and the UKU, on the wall outside the steam room near the main module.\u003c\/p\u003e\n    \u003cp\u003eThe HIVE 12, 15 and 18 are fed by two circuits in HUUM's manual. HUUM's wiring sheet requires the main module and the extension box to be on separate circuit breakers. Your electrician works from HUUM's wiring diagram and sizes the circuits to the code your area has adopted.\u003c\/p\u003e\n    \u003cdiv class=\"hukux-warn\"\u003e\u003cp\u003e\u003cb\u003eNo separate listing.\u003c\/b\u003e We found no North American listing for the extension box. SGS's record for the HIVE 12, 15 and 18 describes those heaters \"with extension box\". Ask your inspector what they need to see.\u003c\/p\u003e\u003c\/div\u003e\n    \u003ch3\u003eIn the box\u003c\/h3\u003e\n    \u003cul class=\"hukux-chk\"\u003e\n\u003cli\u003e\u003cb\u003eExtension box\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eInstallation and operation manual\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003cdiv class=\"hukux-tw\"\u003e\u003ctable class=\"hukux-spec\"\u003e\n\u003ccaption\u003ePart number and warranty\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH2003012\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eAsk us to confirm the term with HUUM before you order\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hukux-tinted\" id=\"faq\"\u003e\n  \u003cdiv class=\"hukux-c\"\u003e\n    \u003cp class=\"hukux-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n    \u003ch2\u003eHUUM UKU extension box questions\u003c\/h2\u003e\n    \u003cdiv class=\"hukux-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eDo I need the HUUM UKU extension box?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hukux-fb\"\u003e\u003cp\u003eOnly with a HIVE 12, 15 or 18. HUUM's current US manuals say the UKU main module can be used with heaters up to 11 kW, which covers every DROP, CLIFF, STEEL, HIVE Mini and CORE.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eDoes the HUUM UKU extension box replace the UKU control?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hukux-fb\"\u003e\u003cp\u003eNo. It adds capacity to a UKU Local or UKU Wi-Fi. You still need the control itself.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eWhere does the HUUM UKU extension box go?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hukux-fb\"\u003e\u003cp\u003eOn the wall outside the steam room, near the UKU main module, wired in by a licensed electrician.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eIs the HUUM UKU extension box UL listed?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hukux-fb\"\u003e\u003cp\u003eNo. We found no North American listing for the extension box. SGS's record for the HIVE 12, 15 and 18 describes those heaters \"with extension box\". Ask your inspector what they need to see.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eWhat warranty comes with the HUUM UKU extension box?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hukux-fb\"\u003e\u003cp\u003eHUUM's warranty gives control units 3 years in a private sauna and 1 year in a commercial one, but HUUM lists the extension box as an accessory to the UKU, and accessories are excluded from that warranty. Call us and we will confirm its cover with HUUM before you order.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cdiv class=\"hukux-close\" id=\"order\"\u003e\n  \u003cdiv class=\"hukux-c\"\u003e\n    \u003cp class=\"hukux-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n    \u003ch2\u003eRunning a HIVE 12, 15 or 18?\u003c\/h2\u003e\n    \u003cp\u003eTell us the heater and we will list everything the order needs: the heater, the UKU, this box and the stone.\u003c\/p\u003e\n    \u003cdiv class=\"hukux-who\"\u003e\n      \u003cimg class=\"hukux-av\" src=\"https:\/\/recoveryroomdirect.com\/cdn\/shop\/files\/recovery_room_direct_specialist_customer_service.png?v=178611576\u0026amp;width=128\" alt=\"Sauna specialist at Recovery Room Direct\" width=\"52\" height=\"52\"\u003e\n      \u003cp\u003e\u003cb\u003eRecovery Room Direct\u003c\/b\u003e\u003cspan\u003eSauna specialists\u003c\/span\u003e\u003cspan\u003eMonday to Saturday, 9AM to 6PM ET\u003c\/span\u003e\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003ca class=\"hukux-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n    \u003ca class=\"hukux-up\" href=\"#MainContent\"\u003eReady to order? Scroll up to the buy box\u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"Default Title","offer_id":53514261266799,"sku":"H2003012","price":773.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-uku-extension-box.jpg?v=1790066763","url":"https:\/\/recoveryroomdirect.com\/products\/huum-uku-extension-box","provider":"Recovery Room Direct","version":"1.0","type":"link"}