{"product_id":"harvia-elite-pro-heavy-duty-sauna-stones","title":"Harvia Elite Pro Heavy Duty Sauna Heater Stones | AC3050 AC3055","description":"\u003cstyle\u003e\n.rca-pdp{font-family:Arial,sans-serif;font-size:15px;line-height:1.7;color:#232323;width:100%;max-width:100%;margin:0;padding:0;box-sizing:border-box}\n.rca-pdp *{box-sizing:border-box;max-width:100%}\n.rca-pdp h2{font-size:22px;font-weight:bold;color:#232323;margin:0 0 12px;line-height:1.3}\n.rca-pdp h3{font-size:18px;font-weight:bold;color:#232323;margin:28px 0 12px}\n.rca-pdp p{margin:0 0 20px}\n.rca-pdp ul,.rca-pdp ol{margin:0 0 28px;padding-left:20px;line-height:1.7;color:#232323}\n.rca-pdp li{margin-bottom:8px}\n.rca-pdp a{color:#323f4e;text-decoration:underline;text-underline-offset:2px}\n.rca-pdp .rca-note{font-size:14px;color:#3F7276;margin-bottom:16px}\n.rca-pdp .rca-flex{display:flex;gap:16px;margin-bottom:28px;flex-wrap:wrap}\n.rca-pdp .rca-box{flex:1 1 260px;min-width:0;border-radius:6px;padding:16px}\n.rca-pdp .rca-box ul{margin:0;padding-left:20px}\n.rca-pdp .rca-best{background:#E8F5E9;border-left:4px solid #4CAF50}\n.rca-pdp .rca-not{background:#FFEBEE;border-left:4px solid #EF5350}\n.rca-pdp .rca-why{background:#E8F4F8;border-left:4px solid #539499;border-radius:6px;padding:16px;margin-bottom:28px}\n.rca-pdp .rca-warn{background:#FFF8E1;border-left:4px solid #F5C842;border-radius:6px;padding:16px;margin-bottom:28px}\n.rca-pdp .rca-req{background:#F5F5F5;border-left:4px solid #CCCCCC;border-radius:6px;padding:16px;margin-bottom:28px}\n.rca-pdp .rca-label{margin:0 0 6px;font-size:13px;font-weight:bold;text-transform:uppercase;letter-spacing:.5px;color:#232323}\n.rca-pdp table{border-collapse:collapse;width:100%;margin-bottom:16px}\n.rca-pdp caption{text-align:left;font-size:14px;color:#3F7276;padding-bottom:8px}\n.rca-pdp th{background:#3F7276;color:#fff;font-weight:bold;padding:10px 12px;text-align:left;font-size:14px}\n.rca-pdp td{padding:10px 12px;border-bottom:1px solid #e5e5e5;color:#232323;vertical-align:top}\n.rca-pdp tbody tr:nth-child(odd){background:#F9F9F9}\n.rca-pdp .rca-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}\n.rca-pdp .rca-swipe{display:none}\n.rca-pdp details{margin-bottom:12px;border-bottom:1px solid #e5e5e5;padding-bottom:12px}\n.rca-pdp summary{font-weight:bold;cursor:pointer;color:#232323;padding:12px 0;min-height:44px;line-height:1.4}\n.rca-pdp details p{padding:10px 0 4px;margin:0}\n@media (max-width:640px){\n.rca-pdp{font-size:16px;padding:0 12px}\n.rca-pdp h2{font-size:20px;line-height:1.35}\n.rca-pdp h3{font-size:17px}\n.rca-pdp .rca-box{min-width:100%}\n.rca-pdp table{font-size:13px}\n.rca-pdp th{padding:8px 6px;font-size:12px;line-height:1.3}\n.rca-pdp td{padding:8px 6px;line-height:1.4;overflow-wrap:anywhere}\n.rca-pdp td:first-child{font-weight:bold}\n.rca-pdp .rca-wide{min-width:640px}\n.rca-pdp .rca-swipe{display:block;font-size:12px;color:#3F7276;margin-bottom:16px}\n}\n\u003c\/style\u003e\n\u003cdiv class=\"rca-pdp\"\u003e\n\n\n\u003ch2\u003eHarvia Elite Pro Sauna Stones: heat-treated stone for rooms that run every day\u003c\/h2\u003e\n\n\u003cp\u003eA commercial sauna fires several times a day, every day, and ordinary stone breaks down under that. Elite Pro is Harvia answer to it: olivine diabase that has been heat treated to around 1000 degrees Celsius before it ever reaches your heater, so the thermal shock that cracks untreated stone has already been done to it. Harvia specifically names public saunas as the use case. Two sizes, the AC3050 at 5 to 10 cm and the AC3055 at 10 to 15 cm, both 20 kg.\u003c\/p\u003e\n\n\u003ch3\u003eWhat the heat treatment buys you\u003c\/h3\u003e\n\n\u003cp\u003eSauna stone fails by cracking, and it cracks because every ladle of water puts a thermal shock through it. Pre-treating the rock at around 1000 degrees drives that process to completion before the stone is sold, so what arrives is the material that survived rather than the material that will fail in your heater. In a room fired once a week the difference is modest. In a room fired six times a day it is the difference between an annual restack and a quarterly one.\u003c\/p\u003e\n\n\u003cdiv class=\"rca-warn\"\u003e\n\u003ch4 class=\"rca-label\"\u003eBEFORE YOU ORDER: STILL SPLIT-FACE, SO STILL NOT FOR EVERY HEATER\u003c\/h4\u003e\n\u003cp style=\"margin:0;\"\u003eElite Pro is heat treated but it is still split-face stone, which Harvia states in its own copy. The Harvia Spirit range does not accept it: the Spirit manual states only rounded stones may be used and that stones with a cleavage surface are not allowed. For a Spirit you need the rounded R-991. Note also that Harvia describes Elite Pro as grey heat-treated olivine diabase while its own studio photographs show a reddish-brown speckled rock. We have used Harvia words rather than Harvia pictures, so expect the stone to look closer to the photograph.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eBenefits and Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHeat treated to around 1000 degrees Celsius before sale\u003c\/li\u003e\n\u003cli\u003eGrey olivine diabase, the same rock family as the standard Harvia stone\u003c\/li\u003e\n\u003cli\u003eHarvia names public saunas as the intended use\u003c\/li\u003e\n\u003cli\u003eAC3050 at 5 to 10 cm and AC3055 at 10 to 15 cm\u003c\/li\u003e\n\u003cli\u003e20 kg boxes on both sizes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"rca-flex\"\u003e\n\u003cdiv class=\"rca-box rca-best\"\u003e\n\u003cp class=\"rca-label\"\u003eBEST FOR\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePublic, club, gym and hotel saunas fired daily\u003c\/li\u003e\n\u003cli\u003eRental properties where restacking is expensive to schedule\u003c\/li\u003e\n\u003cli\u003eAny room where stone replacement has become a recurring cost\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rca-box rca-not\"\u003e\n\u003cp class=\"rca-label\"\u003eNOT IDEAL FOR\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe Harvia Spirit range, which requires rounded stone\u003c\/li\u003e\n\u003cli\u003eBuyers who want the cheapest stone for a once-a-week home sauna\u003c\/li\u003e\n\u003cli\u003eAny heater whose manual specifies rounded stone only\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cp class=\"rca-swipe\"\u003eSwipe to see the full table\u003c\/p\u003e\n\u003cdiv class=\"rca-scroll\" tabindex=\"0\" role=\"region\" aria-label=\"Harvia Elite Pro Heavy Duty Sauna Heater Stones | AC3050 AC3055 specifications\"\u003e\n\u003ctable class=\"rca-wide\"\u003e\n\u003ccaption\u003eHarvia Elite Pro sauna stones. Stone type, size and box weight are from Harvia's model pages. Harvia publishes no certification and no stated replacement interval for either size.\u003c\/caption\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePart\u003c\/th\u003e\n\u003cth\u003eStone size\u003c\/th\u003e\n\u003cth\u003eBox weight\u003c\/th\u003e\n\u003cth\u003eSuits\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC3050\u003c\/td\u003e\n\u003ctd\u003e5 to 10 cm\u003c\/td\u003e\n\u003ctd\u003e20 kg\u003c\/td\u003e\n\u003ctd\u003eElectric heaters, top stone for wood burners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC3055\u003c\/td\u003e\n\u003ctd\u003e10 to 15 cm\u003c\/td\u003e\n\u003ctd\u003e20 kg\u003c\/td\u003e\n\u003ctd\u003eLarge electric heaters and all wood burners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eAlso Consider\u003c\/h3\u003e\n\u003cp\u003eFor a standard split-face stone at a lower price, see the Harvia AC3000 and AC3020. For a darker bed, see the Harvia Black Vulcanite range. If your heater requires rounded stone, see the Harvia rounded olivine sauna stones.\u003c\/p\u003e\n\n\u003ch3\u003eWhy buy this from RecovAthlete\u003c\/h3\u003e\n\u003cdiv class=\"rca-why\"\u003e\n\u003cp style=\"margin:0;\"\u003eCommercial rooms buy stone on total cost rather than box price, and nobody publishes a replacement interval you can plan against. Tell us how often the room fires and we will tell you whether Elite Pro pays for itself against standard stone at your usage. Call 866-861-6317, 9am to 6pm EST, Monday to Friday, or \u003ca href=\"https:\/\/calendly.com\/recvoathlete\/30min\"\u003ebook a call\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eQuestions buyers ask\u003c\/h3\u003e\n\n\u003cdetails\u003e\u003csummary\u003eWhat makes Elite Pro different from standard Harvia stone?\u003c\/summary\u003e\n\u003cp\u003eIt is the same olivine diabase, heat treated to around 1000 degrees Celsius before sale so the thermal shock that cracks untreated stone has already happened.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdetails\u003e\u003csummary\u003eCan I use it in a Spirit?\u003c\/summary\u003e\n\u003cp\u003eNo. Elite Pro is split-face and the Spirit manual allows only rounded stone with no cleavage surface. Use the rounded R-991 for a Spirit.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdetails\u003e\u003csummary\u003eHow long does it last?\u003c\/summary\u003e\n\u003cp\u003eHarvia publishes no replacement interval for Elite Pro specifically. Its general guidance is to rearrange stones at least annually and replace them when they crack or sound hollow.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003c\/div\u003e","brand":"Harvia","offers":[{"title":"AC3050 | Elite Pro heavy duty | 5 to 10 cm | 20 kg box","offer_id":49731343384728,"sku":"AC3050","price":153.0,"currency_code":"USD","in_stock":true},{"title":"AC3055 | Elite Pro heavy duty | 10 to 15 cm | 20 kg box","offer_id":49731343417496,"sku":"AC3055","price":158.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0422\/3942\/6712\/files\/2904.jpg?v=1787500251","url":"https:\/\/recovathlete.com\/products\/harvia-elite-pro-heavy-duty-sauna-stones","provider":"RecovAthlete","version":"1.0","type":"link"}