{"id":3335,"date":"2026-07-14T12:00:00","date_gmt":"2026-07-14T10:00:00","guid":{"rendered":"https:\/\/momojord.com\/teploty-underquiltu-poctive\/"},"modified":"2026-07-14T12:00:00","modified_gmt":"2026-07-14T10:00:00","slug":"teploty-underquiltu-poctive","status":"publish","type":"post","link":"https:\/\/momojord.com\/cs\/teploty-underquiltu-poctive\/","title":{"rendered":"Teploty underquilt\u016f poctiv\u011b: Co ta \u010d\u00edsla vlastn\u011b znamenaj\u00ed"},"content":{"rendered":"<p><em>Pr\u016fvodce prachov\u00fdm pe\u0159\u00edm, nad\u00fdchanost\u00ed a zimou &mdash; a pro\u010d se tolika teplotn\u00edm hodnot\u00e1m underquilt\u016f ned\u00e1 v\u011b\u0159it.<\/em><\/p>\n<p>Srovn\u00e1v\u00e1te dva underquilty v internetov\u00e9m obchod\u011b. U jednoho stoj\u00ed &bdquo;&minus;7&nbsp;\u00b0C.&ldquo; U druh\u00e9ho &bdquo;&minus;12&nbsp;\u00b0C&ldquo; a stoj\u00ed m\u00ed\u0148. Jasn\u00e1 volba, ne?<\/p>\n<p>Skoro nikdy. Proto\u017ee na rozd\u00edl od t\u00e9m\u011b\u0159 v\u0161eho ostatn\u00edho, co si na v\u00fdlety do p\u0159\u00edrody kupujete, neexistuje \u017e\u00e1dn\u00e1 norma, kter\u00e1 by definovala, co teplotn\u00ed hodnota underquiltu vlastn\u011b znamen\u00e1. \u010c\u00edslo si obvykle ur\u010d\u00ed s\u00e1m v\u00fdrobce &mdash; n\u011bkdy poctiv\u011b, n\u011bkdy jako \u010dist\u00fd marketing. Tento \u010dl\u00e1nek je o tom, jak \u010d\u00edst hodnotu underquiltu o\u010dima \u010dlov\u011bka, kter\u00fd u\u017e opravdu spal venku v zim\u011b &mdash; ne o\u010dima toho, kdo v\u00e1m chce n\u011bco prodat.<\/p>\n<p>Projdeme si fyziku tepla, pro\u010d se underquilt ned\u00e1 testovat podle normy EN jako spac\u00ed pytel, jak konstrukce a velikost m\u011bn\u00ed cel\u00fd obr\u00e1zek, a nej\u010dast\u011bj\u0161\u00ed trik, jak \u010d\u00edslo um\u011ble nafouknout. Na konci byste se m\u011bli um\u011bt pod\u00edvat na libovoln\u00fd underquilt a m\u00edt hrubou p\u0159edstavu, jestli jeho hodnota v\u016fbec obstoj\u00ed.<\/p>\n<h2>Jedin\u00e1 v\u011bc, kter\u00e1 vytv\u00e1\u0159\u00ed teplo: nad\u00fdchanost<\/h2>\n<p>Za\u010dn\u011bme od z\u00e1kladu. Prachov\u00e9 pe\u0159\u00ed samo o sob\u011b neh\u0159eje &mdash; h\u0159eje vzduch, kter\u00fd se v n\u011bm zachyt\u00ed. \u010c\u00edm v\u00edc se pe\u0159\u00ed nad\u00fdch\u00e1 do siln\u00e9, klidn\u00e9 vrstvy vzduchu, t\u00edm je teplej\u0161\u00ed. Izolace je v praxi ot\u00e1zka tlou\u0161\u0165ky. Dva centimetry nad\u00fdchanosti h\u0159ej\u00ed zhruba dvakr\u00e1t v\u00edc ne\u017e jeden, a\u0165 u\u017e pe\u0159\u00ed na pap\u00ed\u0159e vypad\u00e1 jakkoli dob\u0159e.<\/p>\n<p>To n\u00e1m d\u00e1v\u00e1 dv\u011b \u010d\u00edsla, kter\u00e1 spole\u010dn\u011b ur\u010duj\u00ed teplo:<\/p>\n<ul>\n<li><strong>Plnic\u00ed s\u00edla (fill power, FP)<\/strong> &mdash; kolik objemu nadzvedne jeden gram pe\u0159\u00ed. 850&nbsp;FP znamen\u00e1, \u017ee unce (28&nbsp;g) pe\u0159\u00ed se nad\u00fdch\u00e1 na 850 kubick\u00fdch palc\u016f. Vy\u0161\u0161\u00ed FP znamen\u00e1 v\u00edc nad\u00fdchanosti na gram, tedy leh\u010d\u00ed p\u0159ikr\u00fdvku p\u0159i stejn\u00e9m teple. Ale &mdash; a tady d\u011bl\u00e1 spousta lid\u00ed chybu &mdash; <strong>plnic\u00ed s\u00edla nen\u00ed teplo.<\/strong> \u0158\u00edk\u00e1 v\u00e1m, jak efektivn\u011b se pe\u0159\u00ed nad\u00fdch\u00e1, ne kolik nad\u00fdchanosti skute\u010dn\u011b dostanete.<\/li>\n<li><strong>Hmotnost n\u00e1pln\u011b (fill weight)<\/strong> &mdash; kolik pe\u0159\u00ed je v p\u0159ikr\u00fdvce skute\u010dn\u011b nacp\u00e1no.<\/li>\n<\/ul>\n<p>Celkovou nad\u00fdchanost &mdash; a tedy teplo &mdash; d\u00e1v\u00e1 <strong>plnic\u00ed s\u00edla kr\u00e1t hmotnost n\u00e1pln\u011b<\/strong>. Underquilt s 800&nbsp;g 850FP pe\u0159\u00ed m\u00e1 v\u00edc nad\u00fdchanosti, a je tedy teplej\u0161\u00ed, ne\u017e ten se 400&nbsp;g stejn\u00e9ho pe\u0159\u00ed. Kdy\u017e to \u0159eknete nahlas, je to samoz\u0159ejm\u00e9 &mdash; p\u0159esto p\u0159ekvapiv\u00e1 \u010d\u00e1st p\u0159ikr\u00fdvek s hodnotou &bdquo;&minus;12&nbsp;\u00b0C za n\u00edzkou cenu&ldquo; toho dosahuje tak, \u017ee pou\u017eije m\u00e9n\u011b pe\u0159\u00ed, hor\u0161\u00ed pe\u0159\u00ed, nebo oboj\u00ed &mdash; a rozd\u00edl dorovn\u00e1 optimistick\u00fdm \u010d\u00edslem.<\/p>\n<h2>Od nad\u00fdchanosti ke stup\u0148\u016fm<\/h2>\n<p>Vztah mezi nad\u00fdchanost\u00ed a teplotou je v rozsahu, kter\u00fd n\u00e1s zaj\u00edm\u00e1, zhruba line\u00e1rn\u00ed: ka\u017ed\u00fd centimetr nad\u00fdchanosti nav\u00edc posune komfortn\u00ed hranici o pom\u011brn\u011b p\u0159edv\u00eddatelnou hodnotu n\u00ed\u017e. Prax\u00ed ov\u011b\u0159en\u00e9 pravidlo palce \u0159\u00edk\u00e1 zhruba <strong>5&ndash;6&nbsp;\u00b0C na 2,5&nbsp;cm nad\u00fdchanosti<\/strong>, a v\u00fdrobci jako Enlightened Equipment zve\u0159ej\u0148uj\u00ed konkr\u00e9tn\u00ed c\u00edle: asi 6,4&nbsp;cm nad\u00fdchanosti na &minus;7&nbsp;\u00b0C, asi 7,6&nbsp;cm na &minus;12&nbsp;\u00b0C.<\/p>\n<p>Tady je dal\u0161\u00ed past: <strong>p\u0159epln\u011bn\u00ed samo o sob\u011b p\u0159ikr\u00fdvku neoh\u0159eje v\u00edc.<\/strong> Nacpat do komory v\u00edc pe\u0159\u00ed, ne\u017e se do n\u00ed vejde, nad\u00fdchanost nezv\u00fd\u0161\u00ed &mdash; tu u\u017e omezuje hloubka p\u0159ep\u00e1\u017eky. P\u0159epln\u011bn\u00ed (t\u0159eba o 30&nbsp;% nad nomin\u00e1l) existuje proto, aby pe\u0159\u00ed \u010dasem nemigrovalo a neztr\u00e1celo nad\u00fdchanost &mdash; udr\u017euje teplo rovnom\u011brn\u00e9, nep\u0159id\u00e1v\u00e1 stupn\u011b. Siln\u011b p\u0159epln\u011bn\u00e1 p\u0159ikr\u00fdvka je tedy odoln\u011bj\u0161\u00ed, ne nutn\u011b teplej\u0161\u00ed.<\/p>\n<h2>Komfort, limit, extr\u00e9m &mdash; a pro\u010d uv\u00e1d\u00edme komfort<\/h2>\n<p>Kdy\u017e vid\u00edte \u010d\u00edslo, ptejte se, <em>kter\u00e9<\/em> \u010d\u00edslo to je. Norma pro spac\u00ed pytle (EN 13537, dnes ISO 23537) definuje t\u0159i hodnoty:<\/p>\n<ul>\n<li><strong>Komfort<\/strong> &mdash; teplota, p\u0159i kter\u00e9 pr\u016fm\u011brn\u00fd \u010dlov\u011bk sp\u00ed pohodln\u011b.<\/li>\n<li><strong>Limit<\/strong> &mdash; hranice, kdy &bdquo;tepl\u00fd&ldquo; sp\u00e1\u010d jen tak tak nepoci\u0165uje zimu, schoulen\u00fd do klub\u00ed\u010dka. Jin\u00fdmi slovy: noc p\u0159e\u017eijete, ale neu\u017eijete si ji.<\/li>\n<li><strong>Extr\u00e9m<\/strong> &mdash; \u010dist\u00e9 p\u0159e\u017eit\u00ed. Teplota, se kterou nepl\u00e1nujete.<\/li>\n<\/ul>\n<p>Rozd\u00edl mezi komfortem a limitem b\u00fdv\u00e1 typicky <strong>5&ndash;6&nbsp;\u00b0C.<\/strong> A p\u0159esn\u011b v tom je cel\u00fd trik s p\u016fsobiv\u011b vyhl\u00ed\u017eej\u00edc\u00edm \u010d\u00edslem: uv\u00e9st hodnotu <em>limitu<\/em> (nebo dokonce extr\u00e9mu) a nazvat to teplotou produktu. Stejn\u00e1 p\u0159ikr\u00fdvka, kter\u00e1 je &bdquo;&minus;12&nbsp;\u00b0C&ldquo; na limitu, m\u016f\u017ee b\u00fdt &bdquo;&minus;6&nbsp;\u00b0C&ldquo; na komfortu &mdash; tedy na \u010d\u00edsle, na kter\u00e9m chcete opravdu sp\u00e1t.<\/p>\n<p>My uv\u00e1d\u00edme <strong>komfort<\/strong> jako hlavn\u00ed \u010d\u00edslo. Ne ze skromnosti &mdash; proto\u017ee je to poctiv\u00e9 \u010d\u00edslo, se kter\u00fdm se d\u00e1 pl\u00e1novat. Lep\u0161\u00ed nemrznout hned prvn\u00ed noc.<\/p>\n<h2>Pro\u010d se underquilt ned\u00e1 testovat podle normy EN<\/h2>\n<p>A te\u010f \u010d\u00e1st, kterou skoro nikdo ne\u0159ekne nahlas: <strong>normu EN 13537 nelze na underquilt v\u016fbec pou\u017e\u00edt.<\/strong> Test m\u011b\u0159\u00ed figur\u00ednu ve spac\u00edm pytli <strong>le\u017e\u00edc\u00ed na karimatce na zemi<\/strong> (R &asymp; 5,38). Underquilt vis\u00ed pod hamakou. Nen\u00ed tam \u017e\u00e1dn\u00e1 podlaha, \u017e\u00e1dn\u00e1 karimatka, \u017e\u00e1dn\u00e1 zem\u011b. Norma p\u0159edpokl\u00e1d\u00e1 p\u0159esn\u011b to, co tam chyb\u00ed.<\/p>\n<p>Tak\u017ee: <strong>ka\u017ed\u00e9 teplotn\u00ed \u010d\u00edslo na underquiltu je odhad.<\/strong> V\u010detn\u011b toho na\u0161eho. Pokud vid\u00edte underquilt inzerovan\u00fd jako &bdquo;testov\u00e1no podle EN na X&nbsp;\u00b0C,&ldquo; n\u011bkdo si trochu p\u0159ikr\u00e1\u0161luje pravdu. To neznamen\u00e1, \u017ee jsou \u010d\u00edsla k ni\u010demu &mdash; dob\u0159\u00ed v\u00fdrobci je kalibruj\u00ed podle fyziky a podle re\u00e1ln\u00e9ho testov\u00e1n\u00ed v ter\u00e9nu &mdash; ale znamen\u00e1 to, \u017ee byste je m\u011bli \u010d\u00edst jako <em>in\u017een\u00fdrsk\u00e9 odhady<\/em>, ne laboratorn\u00ed certifik\u00e1ty.<\/p>\n<h2>Fyzika hamakov\u00e1n\u00ed: pro\u010d vlastn\u011b underquilt pot\u0159ebujete<\/h2>\n<p>Pro\u010d si prost\u011b ned\u00e1t spac\u00ed pytel <em>pod sebe<\/em> tak, jako byste to ud\u011blali na zemi? Proto\u017ee <strong>v\u00e1ha va\u0161eho t\u011bla stla\u010d\u00ed jakoukoli izolaci pod sebou na nulovou nad\u00fdchanost.<\/strong> Stla\u010den\u00e9 pe\u0159\u00ed neizoluje. Ve sv\u011bt\u011b hamakov\u00e1n\u00ed se tomu \u0159\u00edk\u00e1 &bdquo;syndrom studen\u00e9ho zadku&ldquo;: je jedno, jak dobr\u00fd je spac\u00ed pytel &mdash; spodn\u00ed strana je zm\u00e1\u010dknut\u00e1 a z\u00e1da i zadek v\u00e1m mrznou.<\/p>\n<p>Underquilt to \u0159e\u0161\u00ed tak, \u017ee vis\u00ed <strong>vn\u011b<\/strong> hamaky, pod l\u00e1tkou, kde ho nic netla\u010d\u00ed. Celou noc si tak dr\u017e\u00ed plnou nad\u00fdchanost. O to cel\u00e9 jde.<\/p>\n<p>Hamaka se od zem\u011b li\u0161\u00ed je\u0161t\u011b ve dvou v\u011bcech:<\/p>\n<ul>\n<li><strong>V\u00edtr m\u00e1 v\u011bt\u0161\u00ed v\u00e1hu.<\/strong> Vis\u00edte v proud\u00edc\u00edm vzduchu ze v\u0161ech stran. V\u00edtr, kter\u00fd fouk\u00e1 pod hamakou, strh\u00e1v\u00e1 teplou hrani\u010dn\u00ed vrstvu a dok\u00e1\u017ee p\u0159emoct i jinak naprosto dosta\u010duj\u00edc\u00ed underquilt. Underquilt pot\u0159ebuje v\u011btrnou rezervu, kterou spac\u00ed pytel na zemi nepot\u0159ebuje. (Standardn\u00edm zdrojem je tu termodynamick\u00e1 data Richarda Nisleyho z hamakov\u00e9 komunity &mdash; a z\u00e1v\u011br je jasn\u00fd: o re\u00e1ln\u00e9m v\u00fdkonu rozhoduje v\u00edtr a <em>skute\u010dn\u011b dosa\u017een\u00e1<\/em> nad\u00fdchanost, ne teoretick\u00e1.)<\/li>\n<li><strong>P\u0159il\u00e9havost a mezery.<\/strong> Underquilt, kter\u00fd vis\u00ed p\u0159\u00edli\u0161 voln\u011b nebo se na konc\u00edch odchlipuje, pou\u0161t\u00ed dovnit\u0159 studen\u00fd vzduch. Pokryt\u00ed a p\u0159il\u00e9havost jsou sou\u010d\u00e1st\u00ed rovnice tepla stejn\u011b jako gramy pe\u0159\u00ed.<\/li>\n<\/ul>\n<h2>Konstrukce: pr\u016fchoz\u00ed pro\u0161it\u00ed vs. p\u0159ep\u00e1\u017eky<\/h2>\n<p>Dv\u011b p\u0159ikr\u00fdvky se stejn\u00fdm pe\u0159\u00edm mohou sp\u00e1t \u00fapln\u011b jinak podle toho, jak je to pe\u0159\u00ed uvnit\u0159 dr\u017eeno na m\u00edst\u011b.<\/p>\n<ul>\n<li><strong>Pr\u016fchoz\u00ed pro\u0161it\u00ed<\/strong> (l\u00e1tka pro\u0161it\u00e1 nap\u0159\u00edmo, od vrchu ke spodu): levn\u00e9 a lehk\u00e9, ale z ka\u017ed\u00e9ho \u0161vu se st\u00e1v\u00e1 <strong>studen\u00e9 m\u00edsto<\/strong> &mdash; linie bez izolace &mdash; a pro\u0161it\u00ed nav\u00edc nad\u00fdchanost stla\u010duje. P\u0159ikr\u00fdvky s pr\u016fchoz\u00edm pro\u0161it\u00edm funguj\u00ed spolehliv\u011b jen zhruba do +4&nbsp;\u00b0C.<\/li>\n<li><strong>P\u0159ep\u00e1\u017ekov\u00e9 \/ boxov\u00e9 st\u011bny<\/strong> (vnit\u0159n\u00ed l\u00e1tkov\u00e1 st\u011bna mezi vrstvami): pe\u0159\u00ed se m\u016f\u017ee nad\u00fdchat do pln\u00e9 v\u00fd\u0161ky a rovnom\u011brn\u011b se rozprost\u0159\u00edt, bez studen\u00fdch \u0161v\u016f. Pr\u00e1v\u011b tahle konstrukce v\u016fbec umo\u017e\u0148uje hodnoty pod nulou.<\/li>\n<\/ul>\n<p>V\u0161echny na\u0161e underquilty maj\u00ed boxov\u00e9 p\u0159ep\u00e1\u017eky. Nen\u00ed to bonus navrch k uv\u00e1d\u011bn\u00e9 hodnot\u011b &mdash; je to podm\u00ednka, aby ta hodnota v\u016fbec obst\u00e1la.<\/p>\n<h2>Syst\u00e9m: underquilt a topquilt jsou dv\u011b poloviny<\/h2>\n<p>Tohle je nejd\u016fle\u017eit\u011bj\u0161\u00ed &mdash; a nejv\u00edc nepochopen\u00e1 &mdash; \u010d\u00e1st.<\/p>\n<p>Spac\u00ed syst\u00e9m pro hamaku m\u00e1 dv\u011b nez\u00e1visl\u00e9 poloviny: <strong>underquilt<\/strong> (zespodu) a <strong>topquilt nebo spac\u00ed pytel<\/strong> (navrch). Zima se dostane dovnit\u0159 tam, kde je izolace nejten\u010d\u00ed. Co\u017e znamen\u00e1: <strong>syst\u00e9m je jen tak tepl\u00fd, jak tepl\u00e1 je jeho slab\u0161\u00ed polovina.<\/strong> Underquilt na &minus;10&nbsp;\u00b0C sp\u00e1rovan\u00fd s topquiltem na 0&nbsp;\u00b0C znamen\u00e1, \u017ee v\u00e1m bude zima shora u\u017e kolem 0&nbsp;\u00b0C. Teplo nav\u00edc zespodu to nevykompenzuje.<\/p>\n<p>A p\u0159esn\u011b tady \u017eije nejb\u011b\u017en\u011bj\u0161\u00ed trik s nafukov\u00e1n\u00edm hodnoty. N\u011bkte\u0159\u00ed v\u00fdrobci uv\u00e1d\u011bj\u00ed chladovou hodnotu <strong>&bdquo;v kombinaci s odpov\u00eddaj\u00edc\u00edm topquiltem&ldquo;<\/strong> &mdash; a teplo cel\u00e9ho syst\u00e9mu p\u0159ip\u00ed\u0161ou <em>underquiltu<\/em>. Samostatn\u011b by p\u0159iznali mnohem teplej\u0161\u00ed (mnohem m\u00ed\u0148 p\u016fsobiv\u00e9) \u010d\u00edslo. Takhle se z tenk\u00e9ho underquiltu stane ve specifika\u010dn\u00ed tabulce &bdquo;&minus;12&ldquo;.<\/p>\n<p>My to takhle ned\u011bl\u00e1me. Na\u0161e komfortn\u00ed hodnota je hodnota spodn\u00ed poloviny, te\u010dka. Sp\u00e1rujte ji s vrchn\u00ed izolac\u00ed, kter\u00e1 je minim\u00e1ln\u011b stejn\u011b tepl\u00e1, a syst\u00e9m se na tu hodnotu dostane. Underquilt \u0159e\u0161\u00ed polovinu syst\u00e9mu &mdash; nikdy celek.<\/p>\n<h2>Velikost a pokryt\u00ed: stejn\u00e9 pe\u0159\u00ed, jin\u00e9 teplo<\/h2>\n<p>Dva underquilty mohou m\u00edt identickou hmotnost n\u00e1pln\u011b, a p\u0159esto sp\u00e1t \u00fapln\u011b jinak, proto\u017ee se li\u0161\u00ed v <strong>pokryt\u00ed<\/strong>. P\u0159ikr\u00fdvka, kter\u00e1 je moc kr\u00e1tk\u00e1, nech\u00e1v\u00e1 nohy a ramena viset na voln\u00e9m vzduchu; ta, kter\u00e1 je moc \u00fazk\u00e1, pou\u0161t\u00ed pr\u016fvan pod\u00e9l bok\u016f. Spousta underquilt\u016f je z\u00e1m\u011brn\u011b kr\u00e1tk\u00fdch (3\/4 d\u00e9lky) nebo \u00fazk\u00fdch kv\u016fli \u00faspo\u0159e v\u00e1hy &mdash; rozumn\u00fd kompromis pro toho, kdo po\u010d\u00edt\u00e1 ka\u017ed\u00fd gram, ale znamen\u00e1 to, \u017ee &bdquo;&minus;7&nbsp;\u00b0C&ldquo; p\u0159ikr\u00fdvka na 3\/4 d\u00e9lky nekryje jako celod\u00e9lkov\u00e1.<\/p>\n<p>U\u017eite\u010dn\u00e1 metrika je <strong>plo\u0161n\u00e1 hustota n\u00e1pln\u011b<\/strong> &mdash; gramy pe\u0159\u00ed na metr \u010dtvere\u010dn\u00ed. Umo\u017e\u0148uje srovn\u00e1vat jablka s jablky (p\u0159i stejn\u00e9 plnic\u00ed s\u00edle), m\u00edsto abyste z\u00edrali na celkovou hmotnost, kterou zaml\u017euje svrchn\u00ed l\u00e1tka a kov\u00e1n\u00ed.<\/p>\n<p>Na\u0161e underquilty jsou celod\u00e9lkov\u00e9, <strong>208 &times; 142&nbsp;cm &mdash; 2,95&nbsp;m&sup2;.<\/strong> Del\u0161\u00ed a \u0161ir\u0161\u00ed ne\u017e v\u011bt\u0161ina na trhu. V\u00fdsledek je jednodu\u0161\u0161\u00ed a poctiv\u011bj\u0161\u00ed: souvislej\u0161\u00ed kontakt s hamakou, m\u00ed\u0148 studen\u00fdch m\u00edst a \u017e\u00e1dn\u00e9 po\u0161\u0165uchov\u00e1n\u00ed ve t\u0159i r\u00e1no kv\u016fli pr\u016fvanu pod\u00e9l zad.<\/p>\n<h2>Jak poznat nafouknutou hodnotu<\/h2>\n<p>Kdy\u017e srovn\u00e1v\u00e1te underquilty, polo\u017ete si t\u011bchto p\u011bt ot\u00e1zek. V\u011bt\u0161ina nafouknut\u00fdch hodnot sel\u017ee minim\u00e1ln\u011b u jedn\u00e9 z nich:<\/p>\n<ol>\n<li><strong>Komfort, nebo limit?<\/strong> Pokud to nen\u00ed napsan\u00e9 &mdash; p\u0159edpokl\u00e1dejte tu m\u00e9n\u011b p\u0159\u00edznivou, tedy limit. Pro odhad komfortu ode\u010dt\u011bte zhruba 5&nbsp;\u00b0C.<\/li>\n<li><strong>Samostatn\u011b, nebo &bdquo;s topquiltem&ldquo;?<\/strong> Hodnota, kter\u00e1 plat\u00ed jen &bdquo;v kombinaci s odpov\u00eddaj\u00edc\u00edm topquiltem&ldquo;, je hodnota syst\u00e9mu, ne underquiltu samotn\u00e9ho. Hledejte samostatn\u00e9 \u010d\u00edslo.<\/li>\n<li><strong>Celod\u00e9lkov\u00e1, nebo 3\/4?<\/strong> Krat\u0161\u00ed p\u0159ikr\u00fdvka znamen\u00e1 men\u0161\u00ed pokryt\u00ed &mdash; v praxi v\u011bt\u0161\u00ed zimu, ne\u017e by gramy nazna\u010dovaly.<\/li>\n<li><strong>Uvedena plnic\u00ed s\u00edla I hmotnost n\u00e1pln\u011b?<\/strong> FP bez gram\u016f (nebo naopak) v\u00e1m o celkov\u00e9 nad\u00fdchanosti ne\u0159ekne nic. Pot\u0159ebujete oboj\u00ed.<\/li>\n<li><strong>Pr\u016fchoz\u00ed pro\u0161it\u00ed, nebo p\u0159ep\u00e1\u017eky?<\/strong> P\u0159ikr\u00fdvka s hodnotou pod nulou a pr\u016fchoz\u00edm pro\u0161it\u00edm je varovn\u00fd sign\u00e1l.<\/li>\n<\/ol>\n<h2>Pod &minus;10&nbsp;\u00b0C: skl\u00e1d\u00e1n\u00ed izolace<\/h2>\n<p>Pod hranic\u00ed va\u0161eho nejteplej\u0161\u00edho samostatn\u00e9ho underquiltu (UQ800, komfort &asymp; &minus;10&nbsp;\u00b0C) u\u017e jedna p\u0159ikr\u00fdvka sama o sob\u011b nesta\u010d\u00ed. M\u016f\u017eete j\u00edt n\u00ed\u017e &mdash; ale jen tak, \u017ee <em>p\u0159id\u00e1te izolaci<\/em>, a to, co p\u0159id\u00e1v\u00e1te, je <strong>izolace<\/strong> p\u0159ikr\u00fdvky, ne jej\u00ed vyti\u0161t\u011bn\u00e1 hodnota.<\/p>\n<ul>\n<li><strong>Dvojit\u00e9 underquilty.<\/strong> Zav\u011bste ten\u010d\u00ed UQ (UQ400\/UQ500) <em>uvnit\u0159<\/em> sv\u00e9ho UQ800 &mdash; ten\u010d\u00ed bl\u00ed\u017e k hamace, tlust\u0161\u00ed navenek. Zhruba <strong>+8 a\u017e +12&nbsp;\u00b0C<\/strong> nav\u00edc, co\u017e v\u00e1s posune a\u017e k <strong>&minus;18 a\u017e &minus;22&nbsp;\u00b0C<\/strong>. H\u00e1\u010dek: ob\u011b pot\u0159ebuj\u00ed plnou nad\u00fdchanost bez mezer &mdash; jedin\u00e1 mezera se stane studen\u00fdm mostem, kter\u00fd p\u0159ebije v\u0161echno ostatn\u00ed. Nejd\u0159\u00edv si to vyzkou\u0161ejte doma.<\/li>\n<li><strong>Karimatka uvnit\u0159.<\/strong> Karimatka z uzav\u0159en\u00fdch bun\u011bk (CCF) uvnit\u0159 hamaky p\u0159id\u00e1 zhruba <strong>+3 a\u017e +6&nbsp;\u00b0C<\/strong>. Levn\u00e9 a spolehliv\u00e9 \u0159e\u0161en\u00ed. Nafukovac\u00ed karimatka m\u016f\u017ee na pap\u00ed\u0159e vypadat l\u00e9pe, ale klou\u017ee se, ztr\u00e1c\u00ed teplo do vnit\u0159n\u00ed cirkulace vzduchu (asi o 18&nbsp;\u00b0F h\u016f\u0159, ne\u017e je jej\u00ed hodnota na zemi) a m\u00e1 tendenci nech\u00e1vat studen\u00e1 ramena a boky.<\/li>\n<li><strong>V\u011btrn\u00e1 sukn\u011b.<\/strong> Tenk\u00fd pl\u00e1\u0161\u0165 pod underquiltem blokuje v\u00edtr &mdash; nejv\u011bt\u0161\u00edho zlod\u011bje tepla u hamaky. Ve v\u011btru dok\u00e1\u017ee u\u0161et\u0159it zhruba <strong>+3 a\u017e +6&nbsp;\u00b0C<\/strong> efektivn\u00edho tepla; v klidn\u00e9m vzduchu skoro nic.<\/li>\n<\/ul>\n<p>Ale pamatujte na <strong>strop nad\u00fdchanosti<\/strong>: odpo\u010d\u00edvaj\u00edc\u00ed t\u011blo dok\u00e1\u017ee protla\u010dit teplo jen skrz zhruba 2,5&ndash;3 palce nad\u00fdchanosti, tak\u017ee se zisky s dal\u0161\u00edm skl\u00e1d\u00e1n\u00edm zmen\u0161uj\u00ed (dva UQ800 nedaj\u00ed dvojn\u00e1sobek jednoho). Pod &minus;10&nbsp;\u00b0C jde stejnou m\u011brou o <strong>zku\u0161enost a rezervu<\/strong> jako o gramy pe\u0159\u00ed. Nikdy se nespol\u00e9hejte jen na oble\u010den\u00ed, vyzkou\u0161ejte si sestavu doma d\u0159\u00edv, ne\u017e se na ni spolehnete v ter\u00e9nu, a m\u011bjte z\u00e1lo\u017en\u00ed pl\u00e1n. Podchlazen\u00ed a omrzliny jsou re\u00e1ln\u00e1 rizika.<\/p>\n<h2>Jak si vlastn\u011b vybrat<\/h2>\n<p>P\u0159em\u00fd\u0161lejte v pojmech komfort plus rezerva:<\/p>\n<ul>\n<li><strong>Vych\u00e1zejte ze skute\u010dn\u00e9ho no\u010dn\u00edho minima<\/strong>, ne z denn\u00ed teploty. Bu\u010fte up\u0159\u00edmn\u00ed k nejchladn\u011bj\u0161\u00ed noci, na kterou p\u0159ikr\u00fdvku opravdu pl\u00e1nujete pou\u017e\u00edt.<\/li>\n<li><strong>P\u0159idejte rezervu.<\/strong> Zhruba 5&nbsp;\u00b0C prostoru pod o\u010dek\u00e1van\u00e9 minimum je dobr\u00e9 pravidlo. Lep\u0161\u00ed nemrznout.<\/li>\n<li><strong>Zohledn\u011bte v\u00edtr a sami sebe.<\/strong> Otev\u0159en\u00e9 m\u00edsto, n\u00e1razov\u00fd v\u00edtr a &bdquo;snadno mi je zima&ldquo; &mdash; to v\u0161echno hodnotu tla\u010d\u00ed dol\u016f. Chr\u00e1n\u011bn\u00fd les a &bdquo;sp\u00edm teplo&ldquo; ji naopak tla\u010d\u00ed nahoru.<\/li>\n<li><strong>Oble\u010den\u00ed je rezerva, ne \u0159e\u0161en\u00ed.<\/strong> Such\u00e9 vln\u011bn\u00e9 vrstvy, \u010depice, such\u00e9 pono\u017eky &mdash; koup\u00ed v\u00e1m p\u00e1r stup\u0148\u016f, hlavn\u011b navrchu a na koncetin\u00e1ch. Pod sebou se oble\u010den\u00ed stla\u010d\u00ed \u00fapln\u011b stejn\u011b jako spac\u00ed pytel. Nikdy nenahrad\u00ed spr\u00e1vn\u00fd underquilt.<\/li>\n<li><strong>Sladit s topquiltem.<\/strong> Syst\u00e9m je jen tak tepl\u00fd, jak tepl\u00e1 je jeho slab\u0161\u00ed polovina.<\/li>\n<\/ul>\n<p>Nechcete po\u010d\u00edtat sami? Na\u0161e <a href=\"https:\/\/momojord.com\/underquilt-calculator\/\">kalkula\u010dka underquiltu<\/a> vezme dne\u0161n\u00ed no\u010dn\u00ed minimum, expozici v\u011btru, jak sp\u00edte a va\u0161i vrchn\u00ed izolaci a rovnou navrhne spr\u00e1vn\u00fd model. Chcete se k odpov\u011bdi sp\u00ed\u0161 do\u010d\u00edst? N\u00e1\u0161 <a href=\"https:\/\/momojord.com\/underquilt-guide\/\">pr\u016fvodce underquilty<\/a> proch\u00e1z\u00ed stejn\u00e9 faktory a pom\u016f\u017ee v\u00e1m naj\u00edt spr\u00e1vn\u00fd model s poctivou rezervou.<\/p>\n<h2>Kde stoj\u00edme my<\/h2>\n<p>Uv\u00e1d\u00edme komfort, kalibrovan\u00fd podle fyziky a podle re\u00e1ln\u00e9ho testov\u00e1n\u00ed v seversk\u00e9 zim\u011b &mdash; nikdy nenafouknut\u00e1 \u010d\u00edsla syst\u00e9mu &bdquo;s topquiltem&ldquo;. Otev\u0159en\u011b \u0159\u00edk\u00e1me, \u017ee \u017e\u00e1dn\u00fd underquilt nen\u00ed testovan\u00fd podle EN, ten n\u00e1\u0161 nevyj\u00edmaje. A stav\u00edme celod\u00e9lkov\u00e9 p\u0159ikr\u00fdvky s boxov\u00fdmi p\u0159ep\u00e1\u017ekami, aby hodnoty, kter\u00e9 uv\u00e1d\u00edme, obst\u00e1ly i ve chv\u00edli, kdy v nich opravdu le\u017e\u00edte venku.<\/p>\n<p>Je to m\u00e9n\u011b p\u016fsobiv\u00e9 \u010d\u00edslo ve specifika\u010dn\u00ed tabulce. Ale je to \u010d\u00edslo, se kter\u00fdm se d\u00e1 sp\u00e1t.<\/p>\n<hr>\n<p><em>Chcete se pono\u0159it hloub\u011bji do toho, kter\u00fd model se hod\u00ed pr\u00e1v\u011b v\u00e1m? P\u0159e\u010dt\u011bte si n\u00e1\u0161 <a href=\"https:\/\/momojord.com\/underquilt-guide\/\">pr\u016fvodce underquilty<\/a>, nebo rovnou p\u0159ejd\u011bte na <a href=\"https:\/\/momojord.com\/shop\/underquilt\/\">na\u0161e underquilty<\/a>. Nejste si jist\u00ed, co v\u00e1s \u010dek\u00e1 dnes v noci? Pod\u00edvejte se na <a href=\"https:\/\/momojord.com\/hammock-weather\/\">Po\u010das\u00ed pro hamak\u00e1\u0159e<\/a> pro va\u0161e m\u00edsto dnes ve\u010der.<\/em><\/p>\n<p><em>Zdroje a doporu\u010den\u00e9 \u010dten\u00ed: EN 13537 \/ ISO 23537 (definice komfortu\/limitu\/extr\u00e9mu), tabulky nad\u00fdchanosti Enlightened Equipment a termodynamick\u00e1 data Richarda Nisleyho o izolaci u hamak &mdash; nejcitovan\u011bj\u0161\u00ed zdroj v hamakov\u00e9 komunit\u011b.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pr\u016fvodce prachov\u00fdm pe\u0159\u00edm, nad\u00fdchanost\u00ed a zimou &mdash; a pro\u010d se tolika teplotn\u00edm hodnot\u00e1m underquilt\u016f ned\u00e1 v\u011b\u0159it. Srovn\u00e1v\u00e1te dva underquilty v internetov\u00e9m obchod\u011b. U jednoho stoj\u00ed &bdquo;&minus;7&nbsp;\u00b0C.&ldquo; U druh\u00e9ho &bdquo;&minus;12&nbsp;\u00b0C&ldquo; a stoj\u00ed m\u00ed\u0148. Jasn\u00e1 volba, ne? Skoro nikdy. Proto\u017ee na rozd\u00edl od t\u00e9m\u011b\u0159 v\u0161eho ostatn\u00edho, co si na v\u00fdlety do p\u0159\u00edrody kupujete, neexistuje \u017e\u00e1dn\u00e1 norma, kter\u00e1 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":319,"comment_status":"","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","footnotes":""},"categories":[255],"tags":[],"class_list":["post-3335","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-navody"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Teplotn\u00ed hodnoty underquilt\u016f: Co skute\u010dn\u011b znamenaj\u00ed<\/title>\n<meta name=\"description\" content=\"Co vlastn\u011b znamen\u00e1 teplotn\u00ed hodnota underquiltu? 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