{"product_id":"solar-exhaust-fan-chicken-coop-greenhouse","title":"25W Solar Panel Exhaust Fan, 220 CFM 2030 RPM, IP65, for Chicken Coop, Greenhouse \u0026 Shed","description":"\u003c!-- ============================================================\n     SAVENDO — Solar Exhaust Fan product description\n     Paste into Shopify: Product \u003e Description \u003e click \u003c \u003e (HTML view)\n     Do NOT re-open the rich text editor after pasting; it strips style blocks.\n     Replace every {{IMG_...}} token with your Shopify CDN URL.\n     ============================================================ --\u003e\n\n\u003cdiv class=\"svd\"\u003e\n\u003cstyle\u003e\n\/* ---- scoped reset ------------------------------------------------ *\/\n.svd,.svd *{box-sizing:border-box;margin:0;padding:0}\n.svd{\n  --night:#12161F;\n  --night-2:#1B2130;\n  --sun:#F2A20C;\n  --sun-soft:#FFC759;\n  --leaf:#4E7A42;\n  --glaze:#EEF2ED;\n  --cedar:#B98A5E;\n  --ink:#1E2429;\n  --ink-soft:#5A646C;\n  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------------------------------------- *\/\n.svd-arc{\n  position:relative;\n  width:min(100%,540px);\n  margin:38px auto 0;\n  aspect-ratio:2\/1.06;\n}\n.svd-arc svg{position:absolute;inset:0;width:100%;height:100%;overflow:visible}\n.svd-arc-track{fill:none;stroke:rgba(237,241,244,.20);stroke-width:1.5;stroke-dasharray:3 7}\n.svd-arm{\n  position:absolute;\n  left:50%;bottom:6%;\n  width:2px;height:82%;\n  transform-origin:50% 100%;\n  transform:rotate(-74deg);\n  animation:svd-day 14s ease-in-out infinite alternate;\n}\n.svd-sun{\n  position:absolute;top:-19px;left:50%;\n  width:38px;height:38px;margin-left:-19px;\n  border-radius:50%;\n  background:radial-gradient(circle at 38% 34%,#FFE9A8,var(--sun) 58%,#D97F00);\n  box-shadow:0 0 0 9px rgba(242,162,12,.14),0 0 40px 12px rgba(242,162,12,.42);\n  animation:svd-pulse 3.4s ease-in-out infinite;\n}\n@keyframes svd-day{from{transform:rotate(-74deg)}to{transform:rotate(74deg)}}\n@keyframes svd-pulse{50%{box-shadow:0 0 0 13px rgba(242,162,12,.10),0 0 52px 16px rgba(242,162,12,.30)}}\n\n.svd-arc-floor{\n  position:absolute;left:0;right:0;bottom:6%;\n  height:1px;background:rgba(237,241,244,.22);\n}\n.svd-arc-lab{\n  position:absolute;bottom:calc(6% - 26px);\n  font-family:var(--data);font-size:10px;letter-spacing:.16em;\n  text-transform:uppercase;color:#7C8794;\n}\n.svd-arc-lab.l{left:0}\n.svd-arc-lab.c{left:50%;transform:translateX(-50%);color:var(--sun)}\n.svd-arc-lab.r{right:0}\n\n.svd-arc-cap{\n  font-family:var(--data);font-size:11.5px;letter-spacing:.05em;\n  color:#8D97A2;padding:44px 0 46px;line-height:1.7;\n}\n.svd-arc-cap b{color:#EDF1F4;font-weight:400}\n\n\/* ---- hero image bleed -------------------------------------------- *\/\n.svd-hero-img{margin:0 -26px;position:relative}\n.svd-hero-img img{filter:saturate(1.04)}\n.svd-hero-img::after{\n  content:\"\";position:absolute;inset:0;\n  background:linear-gradient(180deg,rgba(13,16,23,.55),transparent 34%);\n}\n\n\/* ---- PROBLEM ----------------------------------------------------- *\/\n.svd-problem{background:var(--glaze)}\n.svd-split{display:grid;gap:30px;align-items:center}\n@media(min-width:760px){.svd-split{grid-template-columns:1.08fr .92fr;gap:44px}}\n.svd-figure{border-radius:2px;overflow:hidden;box-shadow:0 14px 34px rgba(18,22,31,.13)}\n\n\/* ---- STEPS (a genuine sequence, so numbering earns its place) ----- *\/\n.svd-steps{display:grid;gap:26px;margin-top:34px}\n@media(min-width:700px){.svd-steps{grid-template-columns:repeat(3,1fr);gap:22px}}\n.svd-step{border-top:2px solid var(--night);padding-top:16px}\n.svd-step-n{\n  font-family:var(--data);font-size:11px;letter-spacing:.2em;\n  color:var(--sun);margin-bottom:10px;\n}\n.svd-step p{font-size:15.5px;color:var(--ink-soft);margin:0}\n\n\/* ---- LIMITS (dark, deliberately undecorated) --------------------- *\/\n.svd-limits{background:var(--night);color:#DDE3E9}\n.svd-limits h2{color:#fff}\n.svd-limits .svd-lede{color:#9BA6B1;max-width:52ch}\n.svd-limit-list{list-style:none;margin-top:30px;display:grid;gap:1px;background:rgba(255,255,255,.09)}\n.svd-limit-list li{background:var(--night);padding:19px 2px 19px 0;display:grid;gap:3px}\n@media(min-width:700px){\n  .svd-limit-list li{grid-template-columns:210px 1fr;gap:24px;align-items:baseline}\n}\n.svd-limit-k{\n  font-family:var(--data);font-size:11.5px;letter-spacing:.15em;\n  text-transform:uppercase;color:var(--sun-soft);\n}\n.svd-limit-v{color:#A9B4BF;font-size:15.5px;line-height:1.55}\n\n\/* ---- SPECS ------------------------------------------------------- *\/\n.svd-spec-wrap{display:grid;gap:34px;align-items:start}\n@media(min-width:820px){.svd-spec-wrap{grid-template-columns:1fr 1fr;gap:48px}}\n.svd-spec{width:100%;border-collapse:collapse;font-family:var(--data);font-size:13.5px}\n.svd-spec td{padding:11px 0;border-bottom:1px solid var(--line);vertical-align:top}\n.svd-spec td:first-child{color:var(--ink-soft);letter-spacing:.04em;width:47%}\n.svd-spec td:last-child{text-align:right;font-weight:600}\n.svd-spec tr:last-child td{border-bottom:0}\n.svd-spec-note{\n  font-family:var(--data);font-size:11px;color:var(--ink-soft);\n  margin-top:16px;line-height:1.7;letter-spacing:.02em;\n}\n\n\/* ---- SIZING ------------------------------------------------------ *\/\n.svd-fit{background:var(--glaze)}\n.svd-fit-grid{display:grid;gap:20px;margin-top:32px}\n@media(min-width:640px){.svd-fit-grid{grid-template-columns:1fr 1fr;gap:22px}}\n.svd-card{background:#fff;padding:24px;border-left:3px solid var(--leaf)}\n.svd-card.no{border-left-color:var(--cedar)}\n.svd-card ul{list-style:none;margin-top:12px;display:grid;gap:7px}\n.svd-card li{font-size:15px;color:var(--ink-soft);padding-left:18px;position:relative}\n.svd-card li::before{\n  content:\"\";position:absolute;left:0;top:.62em;\n  width:7px;height:7px;border-radius:50%;background:var(--leaf);\n}\n.svd-card.no li::before{background:var(--cedar)}\n.svd-inlet{\n  margin-top:26px;padding:20px 22px;background:var(--night);color:#C3CCD5;\n  font-size:15px;line-height:1.6;\n}\n.svd-inlet b{color:var(--sun-soft);font-weight:400;font-family:var(--data);\n  font-size:11px;letter-spacing:.18em;text-transform:uppercase;display:block;margin-bottom:7px}\n\n\/* ---- FAQ --------------------------------------------------------- *\/\n.svd-faq{margin-top:30px;border-top:1px solid var(--line)}\n.svd-faq details{border-bottom:1px solid var(--line)}\n.svd-faq summary{\n  cursor:pointer;list-style:none;padding:19px 34px 19px 0;position:relative;\n  font-family:var(--display);font-weight:700;font-size:16.5px;\n}\n.svd-faq summary::-webkit-details-marker{display:none}\n.svd-faq summary::after{\n  content:\"\";position:absolute;right:6px;top:50%;\n  width:9px;height:9px;margin-top:-6px;\n  border-right:2px solid var(--sun);border-bottom:2px solid var(--sun);\n  transform:rotate(45deg);transition:transform .25s ease;\n}\n.svd-faq details[open] summary::after{transform:rotate(-135deg);margin-top:-2px}\n.svd-faq summary:focus-visible{outline:2px solid var(--sun);outline-offset:3px}\n.svd-faq-a{padding:0 0 22px;color:var(--ink-soft);font-size:16px;max-width:64ch}\n\n\/* ---- gallery ----------------------------------------------------- *\/\n.svd-gal{display:grid;gap:14px;margin-top:34px}\n@media(min-width:620px){.svd-gal{grid-template-columns:repeat(3,1fr)}}\n.svd-gal img{\n  border-radius:2px;transition:transform .5s cubic-bezier(.2,.7,.3,1);\n  background:var(--glaze);\n}\n.svd-gal a:hover img,.svd-gal img:hover{transform:scale(1.028)}\n\n\/* ---- accessibility ----------------------------------------------- *\/\n@media(prefers-reduced-motion:reduce){\n  .svd *,.svd *::after,.svd *::before{\n    animation-duration:.001ms!important;animation-iteration-count:1!important;\n    transition-duration:.001ms!important;\n  }\n  .svd-arm{transform:rotate(0deg)}\n}\n@media(max-width:520px){\n  .svd{font-size:16px}\n  .svd-sec{padding:44px 20px}\n  .svd-hero{padding:38px 20px 0}\n  .svd-hero-img{margin:0 -20px}\n}\n\u003c\/style\u003e\n\n\u003c!-- ================= HERO ================= --\u003e\n\u003cheader class=\"svd-hero\"\u003e\n  \u003cdiv class=\"svd-eyebrow\"\u003e25 W · 220 CFM · 2030 RPM · IP65\u003c\/div\u003e\n  \u003ch1\u003eVentilation for buildings with \u003cem\u003eno power\u003c\/em\u003e running to them\u003c\/h1\u003e\n  \u003cp\u003eA 25 W panel plugs straight into the fan. Sun starts it, cloud slows it, dusk stops it. No outlet, no trench, no electrician.\u003c\/p\u003e\n\n  \u003c!-- SIGNATURE: daylight arc --\u003e\n  \u003cdiv class=\"svd-arc\" role=\"img\" aria-label=\"Diagram: fan speed rises and falls with the sun across the day, peaking at midday and stopping at dusk.\"\u003e\n    \u003csvg viewbox=\"0 0 400 212\" aria-hidden=\"true\"\u003e\n      \u003cpath class=\"svd-arc-track\" d=\"M14 200 A 186 186 0 0 1 386 200\"\u003e\u003c\/path\u003e\n    \u003c\/svg\u003e\n    \u003cdiv class=\"svd-arc-floor\"\u003e\u003c\/div\u003e\n    \u003cdiv class=\"svd-arm\"\u003e\u003cdiv class=\"svd-sun\"\u003e\u003c\/div\u003e\u003c\/div\u003e\n    \u003cspan class=\"svd-arc-lab l\"\u003eDawn\u003c\/span\u003e\n    \u003cspan class=\"svd-arc-lab c\"\u003ePeak draw\u003c\/span\u003e\n    \u003cspan class=\"svd-arc-lab r\"\u003eDusk\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003cp class=\"svd-arc-cap\"\u003e\n    Airflow tracks daylight. \u003cb\u003eHottest hour, hardest pull.\u003c\/b\u003e\u003cbr\u003e\n    No battery — it does not run after dark.\n  \u003c\/p\u003e\n\n  \u003cdiv class=\"svd-hero-img\"\u003e\n    \u003cimg src=\"https:\/\/savendo.org\/cdn\/shop\/files\/us_KQWSXHFJDTYN9W699001Y3_original_img-v1_greenhouse-circulation-f1.webp?v=1785922593\u0026amp;width=1346\" alt=\"Angled 25W panel mounted on a wooden coop roof above nesting hens\" loading=\"lazy\"\u003e\n  \u003c\/div\u003e\n\u003c\/header\u003e\n\n\u003c!-- ================= PROBLEM ================= --\u003e\n\u003csection class=\"svd-sec svd-problem\"\u003e\n  \u003cdiv class=\"svd-split\"\u003e\n    \u003cdiv\u003e\n      \u003cdiv class=\"svd-eyebrow is-dark\"\u003eThe afternoon problem\u003c\/div\u003e\n      \u003ch2\u003eBy three o'clock, the air stops moving\u003c\/h2\u003e\n      \u003cp class=\"svd-lede\"\u003eA closed coop turns into an oven. Ammonia and moisture settle at floor level, and the birds go quiet and stop eating.\u003c\/p\u003e\n      \u003cp\u003eSame story under glass: trapped humidity, condensation on the glazing, mildew creeping up the lower leaves. The obvious fix is a fan. The problem is there is no outlet out there — and running one costs more than the fan ever will.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"svd-figure\"\u003e\n      \u003cimg src=\"https:\/\/savendo.org\/cdn\/shop\/files\/us_KQWSXHFJDTYN9W699001Y3_original_img-v1_greenhouse-circulation-f4.webp?v=1785922593\u0026amp;width=1346\" alt=\"Wet weather close-up of the black housing on a misted greenhouse pane\" loading=\"lazy\"\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003c!-- ================= HOW IT WORKS ================= --\u003e\n\u003csection class=\"svd-sec\"\u003e\n  \u003cdiv class=\"svd-eyebrow is-dark\"\u003eSetup, in order\u003c\/div\u003e\n  \u003ch2\u003eThree steps, one afternoon, ordinary tools\u003c\/h2\u003e\n\n  \u003cdiv class=\"svd-steps\"\u003e\n    \u003cdiv class=\"svd-step\"\u003e\n      \u003cdiv class=\"svd-step-n\"\u003eSTEP 01\u003c\/div\u003e\n      \u003ch3\u003eFit the fan\u003c\/h3\u003e\n      \u003cp\u003eWall, roof, or a vent hole you already have. Brackets, screws, anchors and ties are in the box.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"svd-step\"\u003e\n      \u003cdiv class=\"svd-step-n\"\u003eSTEP 02\u003c\/div\u003e\n      \u003ch3\u003eAngle the panel\u003c\/h3\u003e\n      \u003cp\u003eTilt it into the sun on its adjustable stand, within 16 ft of the fan. One DC plug joins the two.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"svd-step\"\u003e\n      \u003cdiv class=\"svd-step-n\"\u003eSTEP 03\u003c\/div\u003e\n      \u003ch3\u003eLeave it alone\u003c\/h3\u003e\n      \u003cp\u003eNo inverter, no controller, no switch to remember. Light on the panel is the whole operating system.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"svd-gal\"\u003e\n    \u003cimg src=\"https:\/\/savendo.org\/cdn\/shop\/files\/us_KQWSXHFJDTYN9W699001Y3_original_img-v1_greenhouse-circulation-m100-9.jpg?v=1785922593\u0026amp;width=1346\" alt=\"Full kit laid out with inline switch and DC connector on the lead\" loading=\"lazy\"\u003e\n    \u003cimg src=\"https:\/\/savendo.org\/cdn\/shop\/files\/us_KQWSXHFJDTYN9W699001Y3_original_img-v1_greenhouse-circulation-m100-1.12.jpg?v=1785922593\u0026amp;width=1346\" alt=\"Wall-mounted extractor set into coop cladding, cord routed to roof\" loading=\"lazy\"\u003e\n    \u003cimg src=\"https:\/\/savendo.org\/cdn\/shop\/files\/us_KQWSXHFJDTYN9W699001Y3_original_img-v1_greenhouse-circulation-f2.jpg?v=1785922593\u0026amp;width=1346\" alt=\"Airflow arrows tracing stale air toward a coop wall opening\" loading=\"lazy\"\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003c!-- ================= HONEST LIMITS ================= --\u003e\n\u003csection class=\"svd-sec svd-limits\"\u003e\n  \u003cdiv class=\"svd-eyebrow\"\u003eRead this before ordering\u003c\/div\u003e\n  \u003ch2\u003eWhat this fan will not do\u003c\/h2\u003e\n  \u003cp class=\"svd-lede\"\u003eDirect solar drive buys you a free install. It costs you control. If any line below is a dealbreaker, buy a thermostat unit instead — you will be happier and we will have fewer returns.\u003c\/p\u003e\n\n  \u003cul class=\"svd-limit-list\"\u003e\n    \u003cli\u003e\n      \u003cspan class=\"svd-limit-k\"\u003eDaylight only\u003c\/span\u003e\n      \u003cspan class=\"svd-limit-v\"\u003eNo battery. It will not run after dark or bank charge for a grey week.\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"svd-limit-k\"\u003eNo thermostat\u003c\/span\u003e\n      \u003cspan class=\"svd-limit-v\"\u003eIt answers to sunlight, not temperature. You cannot set a trigger point.\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"svd-limit-k\"\u003eOne fan, one panel\u003c\/span\u003e\n      \u003cspan class=\"svd-limit-v\"\u003eQuoted at 220 CFM. Right for a small structure, not for a barn.\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"svd-limit-k\"\u003e16 ft of cable\u003c\/span\u003e\n      \u003cspan class=\"svd-limit-v\"\u003eThe panel has to live within that distance of the fan. There is no extension.\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"svd-limit-k\"\u003eWants direct sun\u003c\/span\u003e\n      \u003cspan class=\"svd-limit-v\"\u003eDappled shade under a tree will drop output noticeably.\u003c\/span\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003c!-- ================= SPECS ================= --\u003e\n\u003csection class=\"svd-sec\"\u003e\n  \u003cdiv class=\"svd-eyebrow is-dark\"\u003eIn the box\u003c\/div\u003e\n  \u003ch2\u003eSpecifications\u003c\/h2\u003e\n\n  \u003cdiv class=\"svd-spec-wrap\"\u003e\n    \u003ctable class=\"svd-spec\"\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003ePanel output\u003c\/td\u003e\n\u003ctd\u003e25 W\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eFan voltage\u003c\/td\u003e\n\u003ctd\u003eDC 12 V\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eAirflow\u003c\/td\u003e\n\u003ctd\u003e220 CFM\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eFan speed\u003c\/td\u003e\n\u003ctd\u003e2030 RPM max\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eAir speed\u003c\/td\u003e\n\u003ctd\u003e4.3 m\/s max\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eNoise\u003c\/td\u003e\n\u003ctd\u003eapprox. 45 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003ePanel size\u003c\/td\u003e\n\u003ctd\u003e17.72 × 13.78 × 0.63 in\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eShipping weight\u003c\/td\u003e\n\u003ctd\u003e5.29 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eCable\u003c\/td\u003e\n\u003ctd\u003e16.27 ft total\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eHousing\u003c\/td\u003e\n\u003ctd\u003ePlastic, rust-free, IP65\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003ePanel glass\u003c\/td\u003e\n\u003ctd\u003eTempered\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eJRD-03\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n\n    \u003cdiv\u003e\n      \u003cdiv class=\"svd-figure\"\u003e\n        \u003cimg src=\"https:\/\/savendo.org\/cdn\/shop\/files\/us_KQWSXHFJDTYN9W699001Y3_original_img-v1_greenhouse-circulation-m100-1.2.jpg?v=1785922593\u0026amp;width=1346\" alt=\"Grey square fan unit beside its tilted photovoltaic panel, white background\" loading=\"lazy\"\u003e\n      \u003c\/div\u003e\n      \u003cp class=\"svd-spec-note\"\u003e\n        Cable splits 11.42 ft panel side \/ 4.85 ft fan side.\u003cbr\u003e\n        Kit includes brackets, screws, expansion anchors, cable ties.\u003cbr\u003e\n        Performance figures are as supplied by the manufacturer.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003c!-- ================= SIZING ================= --\u003e\n\u003csection class=\"svd-sec svd-fit\"\u003e\n  \u003cdiv class=\"svd-eyebrow is-dark\"\u003eSizing\u003c\/div\u003e\n  \u003ch2\u003eMatch the fan to the volume, not the floor area\u003c\/h2\u003e\n  \u003cp class=\"svd-lede\"\u003e220 CFM turns over roughly 400–500 cubic feet every couple of minutes. Measure length × width × average height before you order.\u003c\/p\u003e\n\n  \u003cdiv class=\"svd-fit-grid\"\u003e\n    \u003cdiv class=\"svd-card\"\u003e\n      \u003ch3\u003eWell within range\u003c\/h3\u003e\n      \u003cul\u003e\n        \u003cli\u003e4×8 walk-in chicken coop\u003c\/li\u003e\n        \u003cli\u003eHobby greenhouse up to about 6×8\u003c\/li\u003e\n        \u003cli\u003eStandard garden or tool shed\u003c\/li\u003e\n        \u003cli\u003eDog house or small animal shelter\u003c\/li\u003e\n        \u003cli\u003eShipping container, with a cut inlet\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"svd-card no\"\u003e\n      \u003ch3\u003eSize up, or run two\u003c\/h3\u003e\n      \u003cul\u003e\n        \u003cli\u003eFull barn or stable block\u003c\/li\u003e\n        \u003cli\u003eWalk-in commercial greenhouse\u003c\/li\u003e\n        \u003cli\u003eDouble garage\u003c\/li\u003e\n        \u003cli\u003eAnything past roughly 500 cu ft\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"svd-inlet\"\u003e\n    \u003cb\u003eThe step most people skip\u003c\/b\u003e\n    Cut or open a low inlet vent on the far side of the structure. Without one the fan pulls against its own vacuum and moves very little air — which is the single most common reason an extractor seems underpowered.\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003c!-- ================= FAQ ================= --\u003e\n\u003csection class=\"svd-sec\"\u003e\n  \u003cdiv class=\"svd-eyebrow is-dark\"\u003eBefore you ask\u003c\/div\u003e\n  \u003ch2\u003eQuestions we actually get\u003c\/h2\u003e\n\n  \u003cdiv class=\"svd-faq\"\u003e\n    \u003cdetails\u003e\n      \u003csummary\u003eDoes it come with a battery?\u003c\/summary\u003e\n      \u003cdiv class=\"svd-faq-a\"\u003eNo. The panel drives the fan directly, so it runs while the sun is on it and stops when the light goes. If you need overnight airflow, this is the wrong product.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n      \u003csummary\u003eDoes it have a thermostat?\u003c\/summary\u003e\n      \u003cdiv class=\"svd-faq-a\"\u003eNo. Speed tracks sunlight rather than temperature. The two tend to move together in a glazed or south-facing structure, but you cannot set a switch-on point.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n      \u003csummary\u003eWill it work in a shipping container?\u003c\/summary\u003e\n      \u003cdiv class=\"svd-faq-a\"\u003eYes, provided you can cut a fan opening and a low inlet on the opposite end, and the panel can sit outside in sun. Containers hold heat and condensation badly, so a low vent matters more here than anywhere else.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n      \u003csummary\u003eCan I use it in a dog house or barn?\u003c\/summary\u003e\n      \u003cdiv class=\"svd-faq-a\"\u003eA dog house or small animal shelter is well within range. A full barn is not — 220 CFM will not turn over that volume.\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"svd-gal\"\u003e\n    \u003cimg src=\"https:\/\/savendo.org\/cdn\/shop\/files\/us_KQWSXHFJDTYN9W699001Y3_original_img-v1_greenhouse-circulation-m100-1.12.jpg?v=1785922593\u0026amp;width=1346\" alt=\"Hens feeding undisturbed at a trough below a running wall unit\" loading=\"lazy\"\u003e\n    \u003cimg src=\"https:\/\/savendo.org\/cdn\/shop\/files\/us_KQWSXHFJDTYN9W699001Y3_original_img-v1_greenhouse-circulation-f3.webp?v=1785922593\u0026amp;width=1346\" alt=\"Two settings side by side: lettuce beds under glass, and a hen run\" loading=\"lazy\"\u003e\n    \u003cimg src=\"https:\/\/savendo.org\/cdn\/shop\/files\/us_KQWSXHFJDTYN9W699001Y3_original_img-v1_greenhouse-circulation-m100-12.jpg?v=1785922593\u0026amp;width=1346\" alt=\"Front face of the grey housing showing the slotted debris guard\" loading=\"lazy\"\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Savendo","offers":[{"title":"default","offer_id":63843382198643,"sku":"CJYL28855460001","price":47.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1012\/1366\/7699\/files\/us_KQWSXHFJDTYN9W699001Y3_original_img-v1_greenhouse-circulation-m100-9.jpg?v=1785922593","url":"https:\/\/savendo.org\/products\/solar-exhaust-fan-chicken-coop-greenhouse","provider":"Savendo","version":"1.0","type":"link"}