{"id":8277,"date":"2026-09-13T09:08:35","date_gmt":"2026-09-13T09:08:35","guid":{"rendered":"https:\/\/www.jagalcaide.com\/com-instal-lar-caldera-de-gas\/"},"modified":"2026-09-25T11:44:22","modified_gmt":"2026-09-25T11:44:22","slug":"com-instal-lar-caldera-de-gas","status":"publish","type":"post","link":"https:\/\/www.jagalcaide.com\/ca\/com-instal-lar-caldera-de-gas\/","title":{"rendered":"Com s&#8217;instal\u00b7la una caldera de gas? Requisits i normativa 2026"},"content":{"rendered":"<p>Instal\u00b7lar una caldera de gas implica complir una s\u00e8rie de requisits t\u00e8cnics i legals que molta gent desconeix. En aquesta guia t&#8217;expliquem com funciona el proc\u00e9s, quina normativa s&#8217;aplica el 2026 i qu\u00e8 has de saber abans de trucar a un instal\u00b7lador. Si el que busques \u00e9s contractar el servei directament, pots consultar la nostra p\u00e0gina d&#8217;<a href=\"https:\/\/www.jagalcaide.com\/ca\/installacions\/caldera-de-gas\/\">instal\u00b7laci\u00f3 de calderes de gas a Barcelona<\/a>.<\/p>\n<p>Si vols saber quant costa instal\u00b7lar una caldera de gas a Barcelona, el preu dep\u00e8n del model triat i de les condicions espec\u00edfiques del teu habitatge. A la nostra p\u00e0gina de servei pots veure els models disponibles i demanar un <strong>pressupost sense comprom\u00eds<\/strong>.<\/p>\n<h2>Com funciona el proc\u00e9s d&#8217;instal\u00b7laci\u00f3? Guia pas a pas<\/h2>\n<p>La instal\u00b7laci\u00f3 de calderes de gas no \u00e9s nom\u00e9s penjar un aparell a la paret. Hi ha <strong>requisits a complir, tant t\u00e8cnics com legals<\/strong>.<\/p>\n<p>El primer, i m\u00e9s b\u00e0sic: necessites una presa de gas natural o prop\u00e0 legalitzada, que compleixi la normativa vigent. Res de xapusses. <strong>El subministrament ha d&#8217;estar actiu i registrat<\/strong> a nom teu. Si vius en un edifici, assegura&#8217;t que la sala de calderes o l&#8217;espai on anir\u00e0 l&#8217;equip t\u00e9 prou ventilaci\u00f3. Aqu\u00ed no hi ha marge d&#8217;error: una mala ventilaci\u00f3 pot generar acumulacions perilloses.<\/p>\n<p>Tamb\u00e9 necessites una <strong>evacuaci\u00f3 dels gasos de combusti\u00f3 cap a l&#8217;exterior<\/strong> mitjan\u00e7ant una sortida coaxial o un sistema de doble flux. I compte amb aix\u00f2: en molts casos, si el teu edifici t\u00e9 m\u00e9s de 20 anys, pot ser que hagis d&#8217;adaptar la sortida de fums o fins i tot consultar-ho amb la comunitat de ve\u00efns. A m\u00e9s, qualsevol instal\u00b7lador de calderes et demanar\u00e0 que la instal\u00b7laci\u00f3 el\u00e8ctrica estigui en condicions. Algunes calderes necessiten alimentaci\u00f3 cont\u00ednua i protecci\u00f3 diferencial.<\/p>\n<p>Per fer qualsevol tipus d&#8217;instal\u00b7laci\u00f3 necessites una <strong>factura de compra i un certificat d&#8217;instal\u00b7laci\u00f3 signat per un professional autoritzat.<\/strong> No serveix el teu cunyat, encara que sigui un manetes. Segons la llei, qui pot instal\u00b7lar una caldera de gas \u00e9s nom\u00e9s un instal\u00b7lador habilitat per l&#8217;administraci\u00f3.<\/p>\n<p>Aquest proc\u00e9s el fan exclusivament instal\u00b7ladors habilitats. Si busques un professional certificat a Barcelona, pots <a href=\"https:\/\/www.jagalcaide.com\/ca\/sollicitar-pressupost\/\">contactar amb el nostre equip<\/a>.<\/p>\n<h2>Proc\u00e9s d&#8217;instal\u00b7laci\u00f3 pas a pas<\/h2>\n<p>La instal\u00b7laci\u00f3 <strong>no sol durar m\u00e9s de mig dia,<\/strong> per\u00f2 aix\u00f2 no vol dir que sigui una cosa r\u00e0pida a nivell t\u00e8cnic. Aqu\u00ed t&#8217;expliquem tot el que passa des que el t\u00e8cnic creua la teva porta fins que surt amb una caldera funcionant.<\/p>\n<h3>Preparaci\u00f3 pr\u00e8via<\/h3>\n<p>Abans de muntar res, es <strong>fa una inspecci\u00f3<\/strong> del lloc. L&#8217;instal\u00b7lador comprovar\u00e0 l&#8217;espai disponible, la presa de gas, la ventilaci\u00f3 i els conductes. Si tot est\u00e0 b\u00e9, es desconnecta la caldera antiga (si n&#8217;hi ha) i es neteja la zona. En aquest punt tamb\u00e9 es fan les mesures i els c\u00e0lculs necessaris: cabal d&#8217;aigua, pot\u00e8ncia t\u00e8rmica necess\u00e0ria, tipus d&#8217;\u00fas. Aix\u00f2 \u00e9s vital perqu\u00e8 una caldera sobredimensionada o infradimensionada pot ser un problema seri\u00f3s.<\/p>\n<p>Tamb\u00e9 <strong>es revisa la pressi\u00f3 del gas i es decideix si calen adaptadors o connexions noves.<\/strong> Si \u00e9s un habitatge unifamiliar, pot ser que hagis de modificar el conducte d&#8217;evacuaci\u00f3 per ajustar-lo a la normativa. En edificis, aix\u00f2 sol estar ja preinstal\u00b7lat.<\/p>\n<h3>Durant la instal\u00b7laci\u00f3<\/h3>\n<p>Aqu\u00ed comen\u00e7a la <strong>part visible de la feina.<\/strong> L&#8217;instal\u00b7lador de calderes ancora l&#8217;equip a la paret, connecta les preses d&#8217;aigua freda i calenta, el gas i el tub d&#8217;evacuaci\u00f3 de fums. Tot ha de quedar perfectament segellat. Despr\u00e9s <strong>es fa una prova d&#8217;estanquitat<\/strong> del gas per verificar que no hi hagi fuites. Aquest punt \u00e9s obligatori.<\/p>\n<p>Despr\u00e9s ve la connexi\u00f3 el\u00e8ctrica. Encara que sembli que una caldera \u00e9s nom\u00e9s gas, tamb\u00e9 necessita electricitat per funcionar. Aqu\u00ed s&#8217;instal\u00b7la el term\u00f2stat i, si el client ho ha demanat, es connecta amb un sistema dom\u00f2tic o amb el m\u00f2bil.<\/p>\n<p>Un cop connectada, s&#8217;omple el circuit d&#8217;aigua i es purguen els radiadors per eliminar l&#8217;aire. Es fa la posada en marxa: encesa, verificaci\u00f3 de temperatures, cabal i pressi\u00f3. Si tot va b\u00e9, l&#8217;instal\u00b7lador emet el certificat d&#8217;instal\u00b7laci\u00f3 de la caldera.<\/p>\n<h2>Costos d&#8217;instal\u00b7laci\u00f3<\/h2>\n<p><strong>El preu d&#8217;instal\u00b7laci\u00f3 d&#8217;una caldera de gas varia for\u00e7a segons el model i la dificultat de la feina.<\/strong> De mitjana, el 2026, el cost pot anar des dels 350 fins als 700 euros nom\u00e9s per la instal\u00b7laci\u00f3, sense comptar la caldera. Si cal fer adaptacions (per exemple, canvi de sortida de fums o millora del sistema el\u00e8ctric), el preu pot superar els 1.000 euros.<\/p>\n<p>L&#8217;aparell en si dep\u00e8n de la pot\u00e8ncia i la marca. Una caldera b\u00e0sica pot costar entre 600 i 1.000 euros, mentre que una de condensaci\u00f3 d&#8217;alta efici\u00e8ncia pot superar els 1.800 euros. \u00c9s habitual trobar packs promocionals on s&#8217;inclou la instal\u00b7laci\u00f3 i l&#8217;aparell per un preu tancat, per\u00f2 compte amb la lletra petita: alguns no inclouen l&#8217;IVA o certs materials.<\/p>\n<table style=\"width: 100%; border-collapse: collapse; font-size: 15px;\">\n<thead>\n<tr style=\"background-color: #2d7a3a; color: #ffffff;\">\n<th style=\"padding: 12px 15px; text-align: left;\">Concepte<\/th>\n<th style=\"padding: 12px 15px; text-align: left;\">Cost orientatiu<\/th>\n<th style=\"padding: 12px 15px; text-align: left;\">Notes<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background-color: #f9f9f9;\">\n<td style=\"padding: 11px 15px; border-bottom: 1px solid #e0e0e0;\">M\u00e0 d&#8217;obra d&#8217;instal\u00b7laci\u00f3<\/td>\n<td style=\"padding: 11px 15px; border-bottom: 1px solid #e0e0e0;\">350\u2013700\u20ac<\/td>\n<td style=\"padding: 11px 15px; border-bottom: 1px solid #e0e0e0;\">Sense adaptacions especials<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 11px 15px; border-bottom: 1px solid #e0e0e0;\">Caldera b\u00e0sica de condensaci\u00f3<\/td>\n<td style=\"padding: 11px 15px; border-bottom: 1px solid #e0e0e0;\">600\u20131.000\u20ac<\/td>\n<td style=\"padding: 11px 15px; border-bottom: 1px solid #e0e0e0;\">Marques est\u00e0ndard<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td style=\"padding: 11px 15px; border-bottom: 1px solid #e0e0e0;\">Caldera de condensaci\u00f3 d&#8217;alta efici\u00e8ncia<\/td>\n<td style=\"padding: 11px 15px; border-bottom: 1px solid #e0e0e0;\">1.200\u20131.800\u20ac<\/td>\n<td style=\"padding: 11px 15px; border-bottom: 1px solid #e0e0e0;\">Junkers Bosch, Bosch, Vaillant<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 11px 15px; border-bottom: 1px solid #e0e0e0;\">Canvi de sortida de fums<\/td>\n<td style=\"padding: 11px 15px; border-bottom: 1px solid #e0e0e0;\">150\u2013400\u20ac<\/td>\n<td style=\"padding: 11px 15px; border-bottom: 1px solid #e0e0e0;\">Segons la dificultat d&#8217;acc\u00e9s<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td style=\"padding: 11px 15px; border-bottom: 1px solid #e0e0e0;\">Adaptaci\u00f3 el\u00e8ctrica o de gas<\/td>\n<td style=\"padding: 11px 15px; border-bottom: 1px solid #e0e0e0;\">100\u2013300\u20ac<\/td>\n<td style=\"padding: 11px 15px; border-bottom: 1px solid #e0e0e0;\">Si la instal\u00b7laci\u00f3 existent no compleix la normativa<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 11px 15px; border-bottom: 1px solid #e0e0e0;\"><strong>Total estimat (equip + instal\u00b7laci\u00f3)<\/strong><\/td>\n<td style=\"padding: 11px 15px; border-bottom: 1px solid #e0e0e0;\"><strong>1.600\u20132.700\u20ac<\/strong><\/td>\n<td style=\"padding: 11px 15px; border-bottom: 1px solid #e0e0e0;\">Per a una instal\u00b7laci\u00f3 est\u00e0ndard en un pis de Barcelona<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>En resum: si est\u00e0s buscant instal\u00b7lar una caldera de gas nova a casa, calcula entre 1.600 i 2.700 euros en total, segons les condicions i l&#8217;equip triat. Pots veure els <a href=\"https:\/\/www.jagalcaide.com\/ca\/installacions\/caldera-de-gas\/\">preus instal\u00b7lats de cada model<\/a> a la nostra p\u00e0gina de servei.<\/p>\n<h2>Normativa vigent<\/h2>\n<p>La normativa a Espanya en mat\u00e8ria d&#8217;instal\u00b7lacions de calderes \u00e9s for\u00e7a clara, tot i que sol canviar cada pocs anys. <strong>El 2026 continua vigent el Reglament d&#8217;Instal\u00b7lacions T\u00e8rmiques als Edificis (RITE)<\/strong>, que exigeix que tota instal\u00b7laci\u00f3 compleixi uns certs est\u00e0ndards d&#8217;efici\u00e8ncia, seguretat i sostenibilitat.<\/p>\n<p>La principal novetat que se segueix aplicant aquest any \u00e9s <strong>l&#8217;obligatorietat d&#8217;instal\u00b7lar nom\u00e9s calderes de condensaci\u00f3<\/strong> en habitatges particulars. Les calderes atmosf\u00e8riques estan prohibides des de fa temps. A m\u00e9s, totes les calderes han de tenir un rendiment m\u00ednim del 92% sobre el poder calor\u00edfic inferior del combustible, cosa que la majoria de models actuals ja compleixen.<\/p>\n<p>Per cert, una altra cosa que exigeix la normativa \u00e9s que els usuaris facin <strong>revisions peri\u00f2diques.<\/strong> La revisi\u00f3 obligat\u00f2ria s&#8217;ha de fer cada dos anys com a m\u00e0xim i, en alguns casos, cada any, segons la companyia de gas.<\/p>\n<h2>Consells de manteniment<\/h2>\n<p>Una caldera de gas <strong>\u00e9s com un cotxe: si no la cuides, s&#8217;espatlla.<\/strong> I el pitjor \u00e9s que les fallades no avisen. Per aix\u00f2 \u00e9s tan important fer un manteniment b\u00e0sic cada any. El primer \u00e9s purgar els radiadors abans que comenci el fred. Aix\u00f2 millora l&#8217;efici\u00e8ncia del sistema i evita sorolls molestos.<\/p>\n<p><strong>Revisa la pressi\u00f3 de la caldera cada mes,<\/strong> sobretot a l&#8217;hivern. Si est\u00e0 per sota d&#8217;1 bar, afegeix aigua al circuit. Si est\u00e0 per sobre de 2,5, contacta amb un t\u00e8cnic. No ho ignoris.<\/p>\n<p><strong>Neteja tamb\u00e9 els filtres<\/strong> de manera peri\u00f2dica. Alguns models permeten fer-ho f\u00e0cilment des de la part inferior. Si notes que l&#8217;aigua calenta triga a sortir o hi ha caigudes de pressi\u00f3, pot ser que tinguis cal\u00e7 o sediments a l&#8217;intercanviador. Aix\u00f2 ja requereix intervenci\u00f3 professional.<\/p>\n<p>Molt important: <strong>contracta una revisi\u00f3 anual amb un t\u00e8cnic autoritzat.<\/strong> A part de ser obligatori, detecta problemes abans que siguin cars o perillosos. Algunes marques fins i tot amplien la garantia si fas el manteniment amb t\u00e8cnics certificats.<\/p>\n<h3><strong>Preguntes freq\u00fcents sobre instal\u00b7laci\u00f3 de calderes de gas<\/strong><\/h3>\n<ul>\n<li><strong>Puc instal\u00b7lar una caldera de gas jo mateix?<\/strong> No. La normativa espanyola exigeix que la instal\u00b7laci\u00f3 la faci un instal\u00b7lador habilitat i registrat al Departament d&#8217;Empresa i Coneixement (a Catalunya) o l&#8217;organisme equivalent de cada comunitat aut\u00f2noma. Instal\u00b7lar una caldera sense habilitaci\u00f3, a m\u00e9s, anul\u00b7la la garantia del fabricant i pot comportar sancions.<\/li>\n<li><strong>Quant triga a instal\u00b7lar-se una caldera nova?<\/strong> Una substituci\u00f3 de caldera est\u00e0ndard, sense obres addicionals, es fa en mig dia. Si cal modificar la sortida de fums, la instal\u00b7laci\u00f3 el\u00e8ctrica o la presa de gas, pot requerir un dia sencer.<\/li>\n<li><strong>Quina documentaci\u00f3 m&#8217;han de lliurar en instal\u00b7lar la caldera?<\/strong> L&#8217;instal\u00b7lador t&#8217;ha de lliurar el certificat d&#8217;instal\u00b7laci\u00f3 signat per un t\u00e8cnic habilitat, el butllet\u00ed de la instal\u00b7laci\u00f3 de gas si s&#8217;han fet modificacions a l&#8217;escomesa, i el manual del fabricant. Sense aquest certificat no pots legalitzar la instal\u00b7laci\u00f3 ni reclamar la garantia.<\/li>\n<li><strong>Amb quina freq\u00fc\u00e8ncia cal fer la revisi\u00f3 obligat\u00f2ria?<\/strong> Segons el RITE, la revisi\u00f3 s&#8217;ha de fer cada dos anys com a m\u00e0xim per a calderes d&#8217;\u00fas dom\u00e8stic. Algunes companyies de gas la inclouen en els seus contractes de subministrament, per\u00f2 conv\u00e9 verificar-ho. Una revisi\u00f3 anual amb un t\u00e8cnic especialitzat \u00e9s l&#8217;opci\u00f3 m\u00e9s segura.<\/li>\n<li><strong>Quines marques de caldera recomaneu?<\/strong> A JAG Alcaide instal\u00b7lem principalment Junkers Bosch i Bosch, de les quals som servei t\u00e8cnic oficial. Tamb\u00e9 treballem amb Vaillant. Per a l&#8217;\u00fas dom\u00e8stic habitual a Barcelona, una caldera de condensaci\u00f3 Junkers Bosch o Bosch ofereix la millor relaci\u00f3 entre preu, efici\u00e8ncia i disponibilitat de recanvis.<\/li>\n<\/ul>\n<h3><strong>Qu\u00e8 necessites exactament?<\/strong><\/h3>\n<p>Segons en quin punt estiguis, aquests s\u00f3n els passos seg\u00fcents:<\/p>\n<ul>\n<li>Si vols <strong>instal\u00b7lar una caldera nova<\/strong> al teu habitatge \u2192 <a href=\"https:\/\/www.jagalcaide.com\/ca\/installacions\/caldera-de-gas\/\">Servei d&#8217;instal\u00b7laci\u00f3 de calderes de gas<\/a><\/li>\n<li>Si busques una <strong>caldera Junkers Bosch o Bosch<\/strong> en concret \u2192 <a href=\"https:\/\/www.jagalcaide.com\/ca\/calefaccio-i-gas\/calderes-junkers-bosch\/\">Veure calderes Junkers Bosch a Barcelona<\/a><\/li>\n<li>Si la teva caldera ja est\u00e0 instal\u00b7lada i vols <strong>protegir-la amb un manteniment anual<\/strong> \u2192 <a href=\"https:\/\/www.jagalcaide.com\/ca\/contractes-de-manteniment\/manteniment-de-calderes-i-escalfadors\/\">Veure contractes de manteniment<\/a><\/li>\n<li>Si la caldera <strong>ja t\u00e9 una avaria<\/strong> \u2192 <a href=\"https:\/\/www.jagalcaide.com\/ca\/servei-tecnic\/\">Servei de reparaci\u00f3 d&#8217;avaries<\/a><\/li>\n<\/ul>\n<div class=\"jag-related\" style=\"margin-top:2em;padding:1.2em 1.4em;border-left:4px solid #1f5fa8;background:#f4f6f9\">\n<h3 style=\"margin-top:0\">Necessites un professional a Barcelona?<\/h3>\n<p>Instal\u00b7lem, reparem i mantenim calderes a Barcelona des de 1953, amb SAT oficial Junkers Bosch. Consulta <a href=\"https:\/\/www.jagalcaide.com\/ca\/installacions\/caldera-de-gas\/\">Instal\u00b7laci\u00f3 de calderes de gas a Barcelona<\/a> o <a href=\"https:\/\/www.jagalcaide.com\/ca\/sollicitar-pressupost\/\">demana pressupost gratu\u00eft<\/a>. Tamb\u00e9 pots trucar-nos al <a href=\"tel:+34932185847\">93 218 58 47<\/a> o escriure\u2019ns per <a href=\"https:\/\/wa.me\/34616946678\">WhatsApp<\/a>.<\/p>\n<h3>Guies relacionades<\/h3>\n<ul>\n<li><a href=\"https:\/\/www.jagalcaide.com\/ca\/caldera-condensacio-sense-desguas-condensats\/\">Caldera de condensaci\u00f3 sense desgu\u00e0s: qu\u00e8 fer amb els condensats<\/a><\/li>\n<li><a href=\"https:\/\/www.jagalcaide.com\/ca\/canviar-caldera-de-lloc\/\">Es pot canviar la caldera de lloc? Requisits i l\u00edmits<\/a><\/li>\n<li><a href=\"https:\/\/www.jagalcaide.com\/ca\/normativa-installacio-caldera-habitatge\/\">Normativa: on instal\u00b7lar la caldera<\/a><\/li>\n<li><a href=\"https:\/\/www.jagalcaide.com\/ca\/servei-tecnic\/\">Servei t\u00e8cnic i reparaci\u00f3 de calderes<\/a><\/li>\n<li><a href=\"https:\/\/www.jagalcaide.com\/ca\/contractes-de-manteniment\/manteniment-de-calderes-i-escalfadors\/\">Contracte de manteniment de calderes<\/a><\/li>\n<\/ul>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Instal\u00b7lar una caldera de gas implica complir una s\u00e8rie de requisits t\u00e8cnics i legals que molta gent desconeix. En aquesta guia t&#8217;expliquem com funciona el proc\u00e9s, quina normativa s&#8217;aplica el 2026 i qu\u00e8 has de [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":3328,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[664],"tags":[],"class_list":["post-8277","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-calderes"],"acf":[],"translation_of":4957,"jag_meta_title":"Com s'instal\u00b7la una caldera de gas? Normativa 2026","jag_meta_desc":"Descobreix quins requisits t\u00e8cnics i legals necessites per instal\u00b7lar una caldera de gas: normativa vigent, proc\u00e9s pas a pas, costos i consells de manteniment.","yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Com s&#039;instal\u00b7la una caldera de gas? 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