{"product_id":"huum-sauna-stones-3-5-cm","title":"HUUM Sauna Stones, 1.2 to 2 in (3 to 5 cm), 33 lb Box","description":"\u003cstyle\u003e.hst12{--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}.hst12 *{box-sizing:border-box}.hst12 .hst12-c img{margin:0 !important;border:0}.hst12 .hst12-c{max-width:1000px;margin:0 auto;padding:0 20px}.hst12 section{padding:52px 0}.hst12 section:first-of-type{padding-top:26px}.hst12 section.hst12-tinted{background:var(--tint)}.hst12 section + section.hst12-tinted,.hst12 section.hst12-tinted + section{border-top:1px solid var(--warm)}.hst12 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td:last-child::before{content:\"Nameplate draw:\\00a0\";font-weight:700;color:var(--ink)}}@media screen and (max-width:480px){.hst12 table.hst12-spec th,.hst12 table.hst12-spec td{display:block;width:auto}.hst12 table.hst12-spec th{border-bottom:0;padding-bottom:0}}.hst12 .hst12-vid video{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:var(--dark);object-fit:cover}.hst12 .hst12-vid video:focus-visible{outline:3px solid var(--bright);outline-offset:-3px}.hst12 .hst12-fig{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--edge);background:#fff}.hst12 .hst12-fig img{width:100%;height:auto;display:block;border:0;border-radius:0;box-shadow:none;mix-blend-mode:multiply}.hst12 .hst12-c\u003efigure{max-width:560px;margin-left:auto;margin-right:auto}.hst12 .hst12-close p.hst12-eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hst12 .hst12-stat3 a{color:var(--bright)}.hst12 .hst12-faq summary h3{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit;display:inline}.hst12 .hst12-cmp thead a .hst12-cmp-here{color:var(--sub);font-weight:600;letter-spacing:.02em;text-transform:none}@media screen and (max-width:560px){.hst12 .hst12-ladder.hst12-rooms td:last-child::before{content:\"Rated room:\\00a0\"}.hst12 .hst12-ladder.hst12-out td:last-child::before{content:\"Output:\\00a0\"}}.hst12 .hst12-tw + p,.hst12 .hst12-tw + h3,.hst12 .hst12-warn + p,.hst12 .hst12-warn + h3,.hst12 .hst12-more + p{margin-top:24px}\u003c\/style\u003e\n\u003cdiv class=\"hst12\"\u003e\n\u003csection id=\"overview\"\u003e\n  \u003cdiv class=\"hst12-c\"\u003e\n    \u003cdetails class=\"hst12-disc\"\u003e\u003csummary\u003eJump to\u003cspan class=\"hst12-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=\"#boxes\"\u003eHow many boxes\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#laying\"\u003eLaying it\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=\"hst12-eyebrow\"\u003eFor HUUM heaters\u003c\/p\u003e\n    \u003ch2\u003eHUUM olivine diabase sauna stones, 1.2 to 2 in (3 to 5 cm), in 33 pound boxes\u003c\/h2\u003e\n    \u003cp class=\"hst12-lead\"\u003eThis is the stone size HUUM specifies for the CLIFF Mini, CLIFF, STEEL Mini and STEEL. Every HUUM heater needs its stone bought separately, and the heater, not the room, sets how many boxes it takes.\u003c\/p\u003e\n    \u003cdiv class=\"hst12-stat3\"\u003e\n      \u003cdiv\u003e\n\u003cp class=\"hst12-lbl\"\u003eStone size\u003c\/p\u003e\n\u003cp class=\"hst12-big\"\u003e1.2 to 2 in\u003c\/p\u003e\n\u003cp\u003e3 to 5 cm across, rounded olivine diabase, the size HUUM gives for these heaters.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003cp class=\"hst12-lbl\"\u003ePer box\u003c\/p\u003e\n\u003cp class=\"hst12-big\"\u003e33 lb\u003c\/p\u003e\n\u003cp\u003eHUUM packs its stone in 15 kg boxes. Order whole boxes to the number your heater takes.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003cp class=\"hst12-lbl\"\u003eWrong size?\u003c\/p\u003e\n\u003cp class=\"hst12-big\"\u003e2 to 4 in\u003c\/p\u003e\n\u003cp\u003eThe DROP, HIVE, HIVE Mini and CORE take the other grade: \u003ca href=\"\/products\/huum-sauna-stones-5-10-cm\"\u003eHUUM stones, 2 to 4 in (5 to 10 cm)\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hst12-tinted\" id=\"boxes\"\u003e\n  \u003cdiv class=\"hst12-c\"\u003e\n    \u003cp class=\"hst12-eyebrow\"\u003eQuantity\u003c\/p\u003e\n    \u003ch2\u003eHow many boxes of HUUM 3 to 5 cm stone your heater takes\u003c\/h2\u003e\n    \u003cp class=\"hst12-lead\"\u003eThe quantity comes from HUUM's own figures for each heater. Order the full amount: a heater may not be switched on until it is properly filled.\u003c\/p\u003e\n    \u003cdiv class=\"hst12-tw\"\u003e\u003ctable class=\"hst12-spec\"\u003e\n\u003ccaption\u003eFrom HUUM's current US manuals\u003c\/caption\u003e\n      \u003ctr\u003e\n\u003cth\u003eHeater\u003c\/th\u003e\n\u003ctd\u003e\u003cstrong\u003eHolds\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eBoxes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCLIFF Mini 4\u003c\/th\u003e\n\u003ctd\u003e132 lb (60 kg)\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e4 boxes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCLIFF 6, 9, 11\u003c\/th\u003e\n\u003ctd\u003e165 lb (75 kg)\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e5 boxes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSTEEL Mini 4\u003c\/th\u003e\n\u003ctd\u003e132 lb (60 kg)\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e4 boxes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSTEEL 6, 9, 11\u003c\/th\u003e\n\u003ctd\u003e330 lb (150 kg)\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e10 boxes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\u003c\/div\u003e\n    \u003cdiv class=\"hst12-warn\"\u003e\u003cp\u003e\u003cb\u003eToo little stone is a fire hazard, not a saving.\u003c\/b\u003e HUUM's manuals warn that a sparsely filled stone container causes a fire hazard, and require that no element shows through the stone.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"laying\"\u003e\n  \u003cdiv class=\"hst12-c\"\u003e\n    \u003cp class=\"hst12-eyebrow\"\u003eLaying it\u003c\/p\u003e\n    \u003ch2\u003eHow to lay HUUM sauna stones\u003c\/h2\u003e\n    \u003cp class=\"hst12-lead\"\u003eThe way the stone goes in matters as much as the amount. It is what carries the heat into the steam, and packed badly it starves the elements of air.\u003c\/p\u003e\n    \u003cul class=\"hst12-chk\"\u003e\n\u003cli\u003e\n\u003cb\u003eWash it first\u003c\/b\u003e\u003cspan\u003eRinse the dust off under running water before it goes into the heater.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLoose inside\u003c\/b\u003e\u003cspan\u003eStack the stone sparsely between the elements. HUUM's CLIFF and STEEL manuals warn that stone packed too close makes the elements overheat and slows the heating.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTight outside\u003c\/b\u003e\u003cspan\u003eStack the stone on the outer face close together, so no element is visible.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGet help if unsure\u003c\/b\u003e\u003cspan\u003eHUUM's CLIFF and STEEL manuals recommend having a specialist lay the stone.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003cp\u003eStone crumbles as it heats and cools, and the dust eventually blocks the airflow, so check it regularly and replace cracked pieces. HUUM's CLIFF and STEEL manuals allow ceramic stones only at your own risk, and HUUM's warranty does not cover defects caused by unsuitable stones.\u003c\/p\u003e\n    \u003cp\u003eChoosing a heater first? Every model is in our \u003ca href=\"\/collections\/huum\"\u003eHUUM collection\u003c\/a\u003e, and the \u003ca href=\"\/pages\/find-your-sauna-heater\"\u003esauna heater finder\u003c\/a\u003e sizes one to your room.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"hst12-tinted\" id=\"faq\"\u003e\u003cdiv class=\"hst12-c\"\u003e\n\u003cp class=\"hst12-eyebrow\"\u003eBuyer questions\u003c\/p\u003e\n\u003ch2\u003eHUUM 3 to 5 cm sauna stone questions\u003c\/h2\u003e\n\u003cdiv class=\"hst12-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eWhich HUUM heaters take 3 to 5 cm stones?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst12-fb\"\u003e\u003cp\u003eThe CLIFF Mini, CLIFF, STEEL Mini and STEEL. The DROP, HIVE, HIVE Mini and CORE take 2 to 4 in (5 to 10 cm) stone instead.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eHow many boxes of HUUM stone do I need?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst12-fb\"\u003e\u003cp\u003eIt depends on the heater: CLIFF Mini 4 takes 4 boxes; CLIFF 6, 9, 11 takes 5 boxes; STEEL Mini 4 takes 4 boxes; STEEL 6, 9, 11 takes 10 boxes. Order the full number, because the heater may not be run before it is properly filled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eWhat kind of stone is it?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst12-fb\"\u003e\u003cp\u003eRounded olivine diabase, supplied by HUUM for its heaters.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eCan I use stones from another brand?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst12-fb\"\u003e\u003cp\u003eHUUM's CLIFF and STEEL manuals call for stone 1.2 to 1.9 in (3 to 5 cm) across and allow ceramic stones only at your own risk. HUUM's warranty does not cover defects caused by unsuitable stones.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eHow often should sauna stones be replaced?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst12-fb\"\u003e\u003cp\u003eCheck it regularly and replace cracked pieces, because crumbling stone blocks the airflow the elements need. HUUM's DROP manual goes further and replaces the whole load after 400 hours of use, a sensible guide for any heater.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch3\u003eAre sauna stones returnable?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"hst12-fb\"\u003e\u003cp\u003eNot once a box is opened, since stone is sold by weight. Unopened boxes follow the return terms in the returns panel above.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\n\u003cdiv class=\"hst12-close\" id=\"order\"\u003e\n  \u003cdiv class=\"hst12-c\"\u003e\n    \u003cp class=\"hst12-eyebrow\" style=\"color:#E8A33D\"\u003eOne last thing\u003c\/p\u003e\n    \u003ch2\u003eNot sure how many boxes your heater takes?\u003c\/h2\u003e\n    \u003cp\u003eTell us the heater model and we will confirm the stone size and the number of boxes before you order.\u003c\/p\u003e\n    \u003cdiv class=\"hst12-who\"\u003e\n      \u003cimg class=\"hst12-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=\"hst12-btn\" href=\"tel:+18885005675\"\u003eCall (888) 500-5675\u003c\/a\u003e\n    \u003ca class=\"hst12-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":53514262151535,"sku":"H3099011","price":80.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/0674\/1103\/files\/huum-sauna-stones-olivine.jpg?v=1790066906","url":"https:\/\/recoveryroomdirect.com\/products\/huum-sauna-stones-3-5-cm","provider":"Recovery Room Direct","version":"1.0","type":"link"}