{"id":19154,"date":"2026-02-19T11:00:00","date_gmt":"2026-02-19T10:00:00","guid":{"rendered":"https:\/\/giconmes.es\/for-heating-reactors-to-70-c-is-an-electric-steam-boiler-or-a-hot-water-boiler-more-efficient\/"},"modified":"2026-02-19T13:06:15","modified_gmt":"2026-02-19T12:06:15","slug":"for-heating-reactors-to-70-c-is-an-electric-steam-boiler-or-a-hot-water-boiler-more-efficient","status":"publish","type":"post","link":"https:\/\/giconmes.es\/en\/for-heating-reactors-to-70-c-is-an-electric-steam-boiler-or-a-hot-water-boiler-more-efficient\/","title":{"rendered":"For heating reactors to 70 \u00b0C, is an electric steam boiler or a hot water boiler more efficient?"},"content":{"rendered":"\n<p>In many <strong>chemical, pharmaceutical and food plants<\/strong>, <strong>industrial reactors<\/strong> need to operate at around <strong>70 \u00b0C<\/strong> using thermal jackets.<\/p>\n\n<p>At the engineering stage, a key question arises: is it more efficient to install a <strong>hot water boiler<\/strong> that <strong>directly delivers water at 70 \u00b0C<\/strong> or to <a href=\"https:\/\/giconmes.es\/en\/steam-generators\/\">generate steam<\/a> and use it to <strong>heat the reactor circuit<\/strong>?<\/p>\n\n<p>The answer depends on the energy architecture, but when we talk about <strong>high-efficiency electric steam boilers<\/strong>, the analysis changes significantly.<\/p>\n\n<h2 class=\"wp-block-heading\">Generation efficiency: electric steam vs. hot water<\/h2>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"676\" src=\"https:\/\/giconmes.es\/wp-content\/uploads\/2026\/02\/comparativa-calentar-reactores-industriales-70-grados-centigrados-1024x676.webp\" alt=\"Comparison of heating industrial reactors to 70 degrees centigrade\" class=\"wp-image-19136\" title=\"Giconmes industrial steam generators\" srcset=\"https:\/\/giconmes.es\/wp-content\/uploads\/2026\/02\/comparativa-calentar-reactores-industriales-70-grados-centigrados-1024x676.webp 1024w, https:\/\/giconmes.es\/wp-content\/uploads\/2026\/02\/comparativa-calentar-reactores-industriales-70-grados-centigrados-300x198.webp 300w, https:\/\/giconmes.es\/wp-content\/uploads\/2026\/02\/comparativa-calentar-reactores-industriales-70-grados-centigrados-768x507.webp 768w, https:\/\/giconmes.es\/wp-content\/uploads\/2026\/02\/comparativa-calentar-reactores-industriales-70-grados-centigrados-1536x1014.webp 1536w, https:\/\/giconmes.es\/wp-content\/uploads\/2026\/02\/comparativa-calentar-reactores-industriales-70-grados-centigrados.webp 1690w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n<p>An industrial gas-fired hot water boiler can achieve efficiencies of 95-98% under optimal conditions.<\/p>\n\n<p>However, an <strong>industrial electric steam boiler<\/strong> converts virtually all electrical energy into useful heat. The <strong>electrical-thermal conversion efficiency<\/strong> can be around <strong>99%<\/strong>, since: <\/p>\n\n<ul class=\"wp-block-list\">\n<li>No combustion losses.<\/li>\n\n\n\n<li>There are no exhaust gases.<\/li>\n\n\n\n<li>No chimney losses.<\/li>\n\n\n\n<li>No combustion air is required.<\/li>\n\n\n\n<li>There are no penalties for excess oxygen.<\/li>\n<\/ul>\n\n<p>From an energy standpoint, <strong>electric steam eliminates the inefficiencies associated with conventional thermal systems<\/strong>.<\/p>\n\n<p>When the electricity comes from renewable sources, moreover, the system becomes a direct solution for industrial decarbonization.<\/p>\n\n<h2 class=\"wp-block-heading\">Does it make sense to produce steam and then obtain water at 70 \u00b0C?<\/h2>\n\n<p>At first glance, it might seem that producing steam (at a higher temperature) and then exchanging heat to obtain water at 70 \u00b0C introduces an additional step.<\/p>\n\n<p>But in real industrial reactor heating applications, <strong>steam offers relevant technical advantages<\/strong>. For example, <strong>more efficient heat transfer<\/strong>. Steam transfers energy by condensation, releasing latent heat with very high exchange coefficients.   This allows:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>More compact heat exchangers.<\/li>\n\n\n\n<li>Faster thermal response.<\/li>\n\n\n\n<li>Precise temperature control in process ramps.<\/li>\n\n\n\n<li>Greater stability in dynamic cycles.<\/li>\n<\/ul>\n\n<p>In reactors with load variations, this dynamic capacity <strong>improves operating performance<\/strong>.<\/p>\n\n<h2 class=\"wp-block-heading\">Auxiliary power consumption and pumping<\/h2>\n\n<p>A hot water circuit requires <strong>recirculation pumps<\/strong> sized for the required heat flow. In plants with multiple reactors, auxiliary power consumption can be significant. <\/p>\n\n<p>In a steam-based system:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Steam is distributed by pressure differential.<\/li>\n\n\n\n<li>The main fluid is not pumped.<\/li>\n\n\n\n<li>Only the feed water and condensate return are pumped.<\/li>\n<\/ul>\n\n<p>In medium and large installations, this difference <strong>reduces auxiliary energy and improves the overall efficiency of the thermal system.<\/strong><\/p>\n\n<h2 class=\"wp-block-heading\">Electric steam and industrial energy architecture<\/h2>\n\n<p>The isolated comparison between &#8220;water at 70 \u00b0C&#8221; and &#8220;steam&#8221; can be misleading. The correct decision is made by analyzing the complete system. <\/p>\n\n<p>Electric steam allows:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Unify thermal services (SIP, cleaning, heat tracing, sterilization).<\/li>\n\n\n\n<li>Eliminate parallel systems.<\/li>\n\n\n\n<li>Simplify maintenance.<\/li>\n\n\n\n<li>Facilitate total electrification through Power-to-Heat.<\/li>\n\n\n\n<li>Reduce direct emissions at the plant.<\/li>\n\n\n\n<li>Easily integrated with renewable energy or photovoltaic self-consumption.<\/li>\n<\/ul>\n\n<p>In plants where steam consumption already exists, opting for a high-efficiency (\u224899%) electric steam boiler makes it possible to <strong>simultaneously cover all thermal demands with a single energy vector<\/strong>.<\/p>\n\n<h2 class=\"wp-block-heading\">Which option is more efficient for heating reactors to 70 \u00b0C?<\/h2>\n\n<p>If we are talking about a small, isolated installation with no other thermal consumption, a hot water boiler can be a simple and efficient solution.<\/p>\n\n<p>But in a real industrial environment, where there are multiple thermal demands and electrification strategies, the industrial electric steam boiler can offer:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Higher generation efficiency.<\/li>\n\n\n\n<li>Less architectural complexity.<\/li>\n\n\n\n<li>Better dynamic response.<\/li>\n\n\n\n<li>Reduction of auxiliary consumption.<\/li>\n\n\n\n<li>Preparation for future decarbonization.<\/li>\n<\/ul>\n\n<p><strong>Efficiency<\/strong> does not depend only on the outlet temperature. It depends on the system design. <\/p>\n\n<h2 class=\"wp-block-heading\">Conclusion: thermal efficiency and energy strategy<\/h2>\n\n<p>In the debate between steam vs. hot water for industrial reactors at 70 \u00b0C, it is not just a matter of comparing temperatures.<\/p>\n\n<p>It is a matter of deciding:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Which energy vector centralizes the plant.<\/li>\n\n\n\n<li>How the energy transition is structured.<\/li>\n\n\n\n<li>What level of overall efficiency is to be achieved.<\/li>\n\n\n\n<li>What role electrification will play in the coming years.<\/li>\n<\/ul>\n\n<p>In this context, a <strong>high efficiency (99%) electric steam boiler <\/strong>is not only a viable alternative. It is a strategic tool for industry seeking <strong>energy efficiency, flexibility and real decarbonization<\/strong>. <\/p>\n\n<p><a href=\"https:\/\/giconmes.es\/en\/contact-us\/\">Contact us and we will help you design the optimal solution for your installation<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In many chemical, pharmaceutical and food plants, industrial reactors need to operate at around 70 \u00b0C using thermal jackets. At the engineering stage, a key question arises: is it more efficient to install a hot water boiler that directly delivers water at 70 \u00b0C or to generate steam and use it to heat the reactor [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":19142,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-19154","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sin-categorizar"],"acf":[],"_links":{"self":[{"href":"https:\/\/giconmes.es\/en\/wp-json\/wp\/v2\/posts\/19154","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=19154"}],"version-history":[{"count":1,"href":"https:\/\/giconmes.es\/en\/wp-json\/wp\/v2\/posts\/19154\/revisions"}],"predecessor-version":[{"id":19155,"href":"https:\/\/giconmes.es\/en\/wp-json\/wp\/v2\/posts\/19154\/revisions\/19155"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/giconmes.es\/en\/wp-json\/wp\/v2\/media\/19142"}],"wp:attachment":[{"href":"https:\/\/giconmes.es\/en\/wp-json\/wp\/v2\/media?parent=19154"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/giconmes.es\/en\/wp-json\/wp\/v2\/categories?post=19154"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/giconmes.es\/en\/wp-json\/wp\/v2\/tags?post=19154"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}