{"id":17103,"date":"2025-09-18T12:00:00","date_gmt":"2025-09-18T11:00:00","guid":{"rendered":"https:\/\/giconmes.es\/?p=17103"},"modified":"2025-09-18T05:09:16","modified_gmt":"2025-09-18T04:09:16","slug":"what-is-an-auxiliary-boiler-and-why-the-electric-steam-boiler-is-the-best-option","status":"publish","type":"post","link":"https:\/\/giconmes.es\/en\/what-is-an-auxiliary-boiler-and-why-the-electric-steam-boiler-is-the-best-option\/","title":{"rendered":"What is an auxiliary boiler and why the electric steam boiler is the best option"},"content":{"rendered":"\n<p>In many <a href=\"https:\/\/giconmes.es\/en\/industrial-steam-generation-processes-and-benefits\/\">industrial plants<\/a>, steam production relies on large, multi-megawatt diesel or oil-fired boilers. These units are robust, capable of meeting the entire steam demand of the facility, but they <strong>are not always the most efficient or flexible option<\/strong> for covering <strong>peak consumption<\/strong>, <strong>start-up periods<\/strong> or <strong>one-off needs<\/strong>. <\/p>\n\n<p>This is where <strong>electric steam boilers<\/strong> come into play as <strong>auxiliary boilers<\/strong>, a solution increasingly valued by engineers and production managers.<\/p>\n\n<h2 class=\"wp-block-heading\">What is an auxiliary boiler<\/h2>\n\n<p>An <strong>auxiliary boiler<\/strong> is not designed to cover the entire demand of the plant, but to:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>To cover <strong>steam consumption peaks<\/strong> at certain times of the process.<\/li>\n\n\n\n<li>To provide service during <strong>periods of start-up or shutdown<\/strong> of the <strong>main boiler<\/strong>.<\/li>\n\n\n\n<li>Guarantee <strong>continuity in case of<\/strong> <strong>main boiler<\/strong> <strong>failures or maintenance<\/strong>.<\/li>\n\n\n\n<li><strong>Optimize costs<\/strong> by avoiding the need to start a large boiler for reduced consumption.<\/li>\n<\/ul>\n\n<p>In other words, the <strong>auxiliary boiler<\/strong> acts as a <strong>safety net and operational flexibility, allowing the plant to operate with greater stability and efficiency.<\/strong><\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"280\" src=\"https:\/\/giconmes.es\/wp-content\/uploads\/2025\/09\/caldera-principal-gasoil-con-caldera-electrica-auxiliar-1024x280.webp\" alt=\"Main oil-fired boiler + one auxiliary electric boiler working in parallel\" class=\"wp-image-17087\" title=\"Giconmes industrial steam generators\" srcset=\"https:\/\/giconmes.es\/wp-content\/uploads\/2025\/09\/caldera-principal-gasoil-con-caldera-electrica-auxiliar-1024x280.webp 1024w, https:\/\/giconmes.es\/wp-content\/uploads\/2025\/09\/caldera-principal-gasoil-con-caldera-electrica-auxiliar-300x82.webp 300w, https:\/\/giconmes.es\/wp-content\/uploads\/2025\/09\/caldera-principal-gasoil-con-caldera-electrica-auxiliar-768x210.webp 768w, https:\/\/giconmes.es\/wp-content\/uploads\/2025\/09\/caldera-principal-gasoil-con-caldera-electrica-auxiliar.webp 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n<p class=\"has-text-align-center\"><em>Diagram showing a main oil boiler + an auxiliary electric boiler working in parallel.<\/em><\/p>\n\n<h2 class=\"wp-block-heading\">Why is an electric boiler perfect as an auxiliary boiler?<\/h2>\n\n<p>Although there are other options, <strong>electric boilers<\/strong> stand out as an auxiliary to smaller oil or gas boilers:<\/p>\n\n<h3 class=\"wp-block-heading\">Instant start-up<\/h3>\n\n<p>While an oil-fired boiler takes several minutes (or even hours) to come up to speed, <strong>an electric boiler can generate steam in a matter of minutes<\/strong>.<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"389\" src=\"https:\/\/giconmes.es\/wp-content\/uploads\/2025\/09\/tiempo-puesta-en-marcha-caldera-gas-vs-electrica-1024x389.webp\" alt=\"Start-up time of a gas boiler vs. electric boiler\" class=\"wp-image-17091\" title=\"Giconmes industrial steam generators\" srcset=\"https:\/\/giconmes.es\/wp-content\/uploads\/2025\/09\/tiempo-puesta-en-marcha-caldera-gas-vs-electrica-1024x389.webp 1024w, https:\/\/giconmes.es\/wp-content\/uploads\/2025\/09\/tiempo-puesta-en-marcha-caldera-gas-vs-electrica-300x114.webp 300w, https:\/\/giconmes.es\/wp-content\/uploads\/2025\/09\/tiempo-puesta-en-marcha-caldera-gas-vs-electrica-768x292.webp 768w, https:\/\/giconmes.es\/wp-content\/uploads\/2025\/09\/tiempo-puesta-en-marcha-caldera-gas-vs-electrica.webp 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n<p class=\"has-text-align-center\"><em>Start-up time of the gas boiler vs. an electric boiler.<\/em><\/p>\n\n<p>This makes it possible to cover occasional consumption without the need to have the main boiler permanently on.<\/p>\n\n<h3 class=\"wp-block-heading\">Flexible and modulating operation<\/h3>\n\n<p>Electric boilers <strong>easily modulate steam production<\/strong>, adapting to highly variable flow rates without loss of efficiency. Therefore, they are perfect for intermittent consumption. <\/p>\n\n<h3 class=\"wp-block-heading\">Zero local emissions<\/h3>\n\n<p>In buildings where emission limits or restricted ventilation are already in place, electric power plants <strong>do not generate flue gases<\/strong>.<\/p>\n\n<h3 class=\"wp-block-heading\">Low maintenance<\/h3>\n\n<p>They do not require <strong>burners<\/strong>, <strong>fuel tanks<\/strong> or <strong>smoke ventilation systems<\/strong>.<\/p>\n\n<p>Their mechanical simplicity makes them the most practical option for backup operation.<\/p>\n\n<h3 class=\"wp-block-heading\">Optimizable operating cost<\/h3>\n\n<p>If the plant has <strong>electricity contracts<\/strong> with <strong>hourly discrimination or photovoltaic self-consumption surpluses<\/strong>, the electric boiler can <strong>take advantage of these moments of cheap electricity to produce steam.<\/strong><\/p>\n\n<h2 class=\"wp-block-heading\">Practical example: plant with 5 MW diesel boiler<\/h2>\n\n<p>Let&#8217;s imagine an industrial building that has a <strong>5 MW<\/strong> <strong>main oil-fired boiler<\/strong> to supply its entire steam demand.<\/p>\n\n<p>In <strong>periods of low production<\/strong>, the main boiler is not very efficient for small consumption.<\/p>\n\n<p>During <strong>plant start-ups or night operations<\/strong>, keeping it on is an unnecessary expense.<\/p>\n\n<p>With the <a href=\"https:\/\/giconmes.es\/en\/facilities\/\">installation of<\/a> a <strong>500 kW<\/strong> <strong>auxiliary electric boiler<\/strong>, the plant achieves:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Cover <strong>peaks and starts<\/strong> without the need to turn on the 5 MW boiler.<\/li>\n\n\n\n<li><strong>Reduce<\/strong> <strong>diesel<\/strong> <strong>consumption<\/strong> and <strong>emissions<\/strong>.<\/li>\n\n\n\n<li><strong>Save energy costs<\/strong> by taking advantage of cheaper electricity during off-peak hours.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">Conclusion: the electric auxiliary steam boiler translates into flexibility and sustainability.<\/h2>\n\n<p><strong>Electric steam boilers<\/strong>, used as <strong>auxiliary boilers<\/strong> in industrial buildings, enable companies:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Reduce consumption of fossil fuels<\/strong>.<\/li>\n\n\n\n<li><strong>Increase operational flexibility<\/strong>.<\/li>\n\n\n\n<li><strong>Improve overall energy efficiency<\/strong>.<\/li>\n\n\n\n<li><strong>Meet environmental objectives without compromising steam supply reliability<\/strong>.<\/li>\n<\/ul>\n\n<p>In a context where <strong>greater efficiency and decarbonization<\/strong> are increasingly sought, having an electric auxiliary boiler is not an extra expense, but an <strong>investment in safety, savings and sustainability<\/strong>.<\/p>\n\n<p>At <strong>Giconmes<\/strong> we help companies to implement steam-based solutions that improve the efficiency, sustainability and profitability of their processes. <a href=\"https:\/\/giconmes.es\/en\/contact-us\/\">Contact us and we will help you to design the optimal solution for your installation<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In many industrial plants, steam production relies on large, multi-megawatt diesel or oil-fired boilers. These units are robust, capable of meeting the entire steam demand of the facility, but they are not always the most efficient or flexible option for covering peak consumption, start-up periods or one-off needs. This is where electric steam boilers come [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":17097,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[36],"tags":[],"class_list":["post-17103","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-boilers-and-steam-generators"],"acf":[],"_links":{"self":[{"href":"https:\/\/giconmes.es\/en\/wp-json\/wp\/v2\/posts\/17103","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/giconmes.es\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/giconmes.es\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/giconmes.es\/en\/wp-json\/wp\/v2\/users\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/giconmes.es\/en\/wp-json\/wp\/v2\/comments?post=17103"}],"version-history":[{"count":1,"href":"https:\/\/giconmes.es\/en\/wp-json\/wp\/v2\/posts\/17103\/revisions"}],"predecessor-version":[{"id":17104,"href":"https:\/\/giconmes.es\/en\/wp-json\/wp\/v2\/posts\/17103\/revisions\/17104"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/giconmes.es\/en\/wp-json\/wp\/v2\/media\/17097"}],"wp:attachment":[{"href":"https:\/\/giconmes.es\/en\/wp-json\/wp\/v2\/media?parent=17103"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/giconmes.es\/en\/wp-json\/wp\/v2\/categories?post=17103"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/giconmes.es\/en\/wp-json\/wp\/v2\/tags?post=17103"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}