{"id":69919,"date":"2025-10-22T15:48:16","date_gmt":"2025-10-22T13:48:16","guid":{"rendered":"https:\/\/www.itap.it\/sin-categorizar\/underfloor-heating-efficiency-and-energy-stability\/"},"modified":"2026-01-15T15:51:22","modified_gmt":"2026-01-15T14:51:22","slug":"underfloor-heating-efficiency-and-energy-stability","status":"publish","type":"post","link":"https:\/\/www.itap.it\/es\/blog-es\/focus-on-es\/underfloor-heating-efficiency-and-energy-stability\/","title":{"rendered":"Underfloor heating: efficiency and energy stability"},"content":{"rendered":"<p><strong>Underfloor heating<\/strong> is one of the most appreciated technologies in the <strong>HVAC industry<\/strong> today. It provides even <strong>heat distribution<\/strong>, <strong>low energy consumption<\/strong>, and <strong>great design flexibility<\/strong>. However, to achieve optimal performance, every system requires <strong>quality components<\/strong> and <strong>consistent hydraulic balancing<\/strong>.<\/p>\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"A_brief_history_of_underfloor_heating\"><\/span><strong>A brief history of underfloor heating<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>Heating from below<\/strong> isn\u2019t a modern invention. The <strong>ancient Romans<\/strong> used the <em><strong>hypocaust system<\/strong><\/em> to distribute warmth beneath their floors. Similarly, traditional <strong>Korean<\/strong> (<em>ondol<\/em>) and <strong>Chinese<\/strong> (<em>kang<\/em>) systems relied on circulating heat to create comfortable indoor environments. Today\u2019s technology builds on these same principles, only with <strong>more precision and performance<\/strong>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-69183 size-large\" src=\"https:\/\/www.itap.it\/wp-content\/uploads\/\/Riscaldamento-a-pavimento2-1024x569.jpg\" alt=\"Riscaldamento a pavimento - IMMAGINE 1\" width=\"1024\" height=\"569\" srcset=\"https:\/\/www.itap.it\/wp-content\/uploads\/Riscaldamento-a-pavimento2-1024x569.jpg 1024w, https:\/\/www.itap.it\/wp-content\/uploads\/Riscaldamento-a-pavimento2-300x167.jpg 300w, https:\/\/www.itap.it\/wp-content\/uploads\/Riscaldamento-a-pavimento2-768x427.jpg 768w, https:\/\/www.itap.it\/wp-content\/uploads\/Riscaldamento-a-pavimento2-1536x854.jpg 1536w, https:\/\/www.itap.it\/wp-content\/uploads\/Riscaldamento-a-pavimento2.jpg 1875w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p>Example of Korean <em>Ondol<\/em>.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_underfloor_heating_works\"><\/span><strong>How underfloor heating works<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>A <strong>radiant floor system<\/strong> heats rooms evenly from the ground up using <strong>PEX or multilayer pipes<\/strong> embedded in a screed layer.<br \/>\nHere\u2019s how it works:<\/p>\n<ul>\n<li><strong>Hot water is delivered to the supply manifold<\/strong>, flows through the circuits beneath the floor;<\/li>\n<li>then <strong>the cold water returns to the return manifold<\/strong> to be reheated.<\/li>\n<\/ul>\n<p>Room-by-room temperature control is handled by <strong>thermostats and electrothermal actuators<\/strong>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-69264\" src=\"https:\/\/www.itap.it\/wp-content\/uploads\/\/Riscaldamento-a-pavimento-1024x569.jpg\" alt=\"Riscaldamento a pavimento - IMMAGINE 2\" width=\"1024\" height=\"569\" srcset=\"https:\/\/www.itap.it\/wp-content\/uploads\/Riscaldamento-a-pavimento-1024x569.jpg 1024w, https:\/\/www.itap.it\/wp-content\/uploads\/Riscaldamento-a-pavimento-300x167.jpg 300w, https:\/\/www.itap.it\/wp-content\/uploads\/Riscaldamento-a-pavimento-768x427.jpg 768w, https:\/\/www.itap.it\/wp-content\/uploads\/Riscaldamento-a-pavimento-1536x854.jpg 1536w, https:\/\/www.itap.it\/wp-content\/uploads\/Riscaldamento-a-pavimento.jpg 1875w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Key_advantages\"><\/span><strong>Key advantages<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>Underfloor heating<\/strong> is synonymous with <strong>comfort and efficiency<\/strong>, especially in low-energy buildings. Its main benefits include:<\/p>\n<ul>\n<li><strong>Even temperature distribution<\/strong> across the floor.<\/li>\n<li><strong>Lower energy use<\/strong> due to low operating temperatures.<\/li>\n<li><strong>Design freedom<\/strong> (no visible radiators).<\/li>\n<li><strong>Compatible with renewable energy sources<\/strong> (solar panels, heat pumps) and smart home systems.<\/li>\n<li><strong>Less airborne dust<\/strong> compared to air-based systems.<\/li>\n<\/ul>\n<p>These features make underfloor heating a growing standard in <strong>high-efficiency buildings<\/strong>. The technology keeps evolving: from <strong>hydronic systems<\/strong> to <strong>hybrid solutions<\/strong> that also provide cooling during the summer.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Essential_components_of_an_underfloor_system\"><\/span><strong>Essential components of an underfloor system<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>To operate efficiently, an <strong>underfloor heating system<\/strong> typically includes:<\/p>\n<p><strong>1- Heat generator<\/strong>: condensing boiler, heat pump, or other systems producing water at 30\u201340\u00b0C.<br \/>\n<strong>2- Manifolds<\/strong>: direct hot water into circuits and collect return water.<br \/>\n<strong>3- Pipe circuits<\/strong>: arranged in loops or spirals beneath the floor, allowing hot water to circulate.<br \/>\n<strong>4- Insulation and screed<\/strong>: the insulation prevents heat loss, and the screed spreads heat evenly.<br \/>\n<strong>5- Room thermostats<\/strong>: control the temperature independently in each space.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-69199\" src=\"https:\/\/www.itap.it\/wp-content\/uploads\/\/Riscaldamento-a-pavimento4-1-1024x569.jpg\" alt=\"Riscaldamento a pavimento - IMMAGINE 3\" width=\"1024\" height=\"569\" srcset=\"https:\/\/www.itap.it\/wp-content\/uploads\/Riscaldamento-a-pavimento4-1-1024x569.jpg 1024w, https:\/\/www.itap.it\/wp-content\/uploads\/Riscaldamento-a-pavimento4-1-300x167.jpg 300w, https:\/\/www.itap.it\/wp-content\/uploads\/Riscaldamento-a-pavimento4-1-768x427.jpg 768w, https:\/\/www.itap.it\/wp-content\/uploads\/Riscaldamento-a-pavimento4-1-1536x854.jpg 1536w, https:\/\/www.itap.it\/wp-content\/uploads\/Riscaldamento-a-pavimento4-1.jpg 1875w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Why_stainless_steel_manifolds_matter\"><\/span><strong>Why stainless steel manifolds matter<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Among all system components, the <strong>manifold is the heart of the distribution<\/strong> system. It channels hot water to each circuit and balances flow based on room demand.<br \/>\nYou\u2019ll find <strong>different manifold types<\/strong> on the market, primarily differentiated by material:<\/p>\n<ul>\n<li><strong>Stainless steel manifolds<\/strong>: lightweight, durable, and ideal for high-efficiency modern systems.<\/li>\n<li><strong>Brass manifolds<\/strong>: solid and traditional, but heavier and prone to corrosion in some conditions.<\/li>\n<li><strong>Technical polymer manifolds<\/strong>: corrosion-resistant and lightweight, often used in smaller residential setups.<\/li>\n<\/ul>\n<p>At Itap, we recommend our <strong>stainless steel manifolds<\/strong>, designed and manufactured in-house to ensure:<\/p>\n<ul>\n<li><strong>Mechanical strength and light weight<\/strong>: thanks to thin but high-performing walls.<\/li>\n<li><strong>Precise control<\/strong>: with valves, flow meters, and accessories that make management easy.<\/li>\n<li><strong>Long-term durability<\/strong>: stainless steel ensures stability even under tough conditions.<\/li>\n<\/ul>\n<h3>Concrete advantages<\/h3>\n<p>By choosing <strong>Itap stainless steel manifolds<\/strong>, you benefit from:<\/p>\n<ul>\n<li><strong>Easy system design.<\/strong><\/li>\n<li><strong>Quick installation<\/strong> with intuitive components.<\/li>\n<li><strong>Guaranteed energy efficiency<\/strong> for the end user.<\/li>\n<li><strong>Certified, reliable products<\/strong> that add long-term value to the system.<\/li>\n<\/ul>\n<p>Check out the complete technical information on our <a href=\"https:\/\/www.itap.it\/es\/products\/calefaccion\/colectores-de-acero-inoxidable\/colectores-premontados-en-acero-inoxidable\/\">different type<\/a> of stainless steel manifolds.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Managing_variable_flow_the_role_of_the_differential_by-pass\"><\/span>Managing variable flow: the role of the differential by-pass<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>Modern systems are controlled by thermostats and electrothermal actuators<\/strong>. As circuits close off one by one (typical of variable flow systems), <strong>differential pressure increases<\/strong>. The consequences? <strong>Noise<\/strong>, <strong>wear and tear on internal components<\/strong>, and <strong>flow imbalances<\/strong>.<\/p>\n<p>To prevent these issues, we recommend the <strong>Itap differential by-pass kit,<\/strong> a simple yet effective solution:<\/p>\n<ul>\n<li>Factory-set valve at 25 kPa.<\/li>\n<li>Direct connection between supply and return.<\/li>\n<li>Releases excess pressure.<\/li>\n<li>Maintains steady flow in open circuits.<\/li>\n<\/ul>\n<p>This compact solution <strong>reduces malfunctions<\/strong>, <strong>simplifies maintenance<\/strong>, and <strong>ensures system continuity<\/strong>.<\/p>\n<p>Explore the <a href=\"\/?prod_cat=860by\">technical information<\/a> of this product to learn more.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-69207\" src=\"https:\/\/www.itap.it\/wp-content\/uploads\/\/Riscaldamento-a-pavimento5-1-1024x569.jpg\" alt=\"Riscaldamento a pavimento - IMMAGINE 4\" width=\"1024\" height=\"569\" srcset=\"https:\/\/www.itap.it\/wp-content\/uploads\/Riscaldamento-a-pavimento5-1-1024x569.jpg 1024w, https:\/\/www.itap.it\/wp-content\/uploads\/Riscaldamento-a-pavimento5-1-300x167.jpg 300w, https:\/\/www.itap.it\/wp-content\/uploads\/Riscaldamento-a-pavimento5-1-768x427.jpg 768w, https:\/\/www.itap.it\/wp-content\/uploads\/Riscaldamento-a-pavimento5-1-1536x854.jpg 1536w, https:\/\/www.itap.it\/wp-content\/uploads\/Riscaldamento-a-pavimento5-1.jpg 1875w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Dynamic_balancing_automatic_efficiency_for_complex_systems\"><\/span>Dynamic balancing: automatic efficiency for complex systems<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>For larger, more <strong>complex systems<\/strong> with many circuits and variable flow, <strong>dynamic balancing is the smartest solution<\/strong>. Unlike manual setups, <strong>Itap manifolds with dynamic balancing automatically adjust<\/strong> to maintain steady flow in every circuit, no matter the conditions.<br \/>\nWhat this means:<\/p>\n<ul>\n<li><strong>For designers<\/strong>: easier calculations, no complex adjustments, and consistent heat distribution.<\/li>\n<li><strong>For installers<\/strong>: fewer on-site tweaks and long-term reliability.<\/li>\n<\/ul>\n<h3>Key features<\/h3>\n<ul>\n<li><strong>Automatic flow regulation<\/strong> per circuit.<\/li>\n<li><strong>Stable output<\/strong> despite system changes.<\/li>\n<li><strong>Continuous hydraulic balancing.<\/strong><\/li>\n<li><strong>Reduced excessive flow.<\/strong><\/li>\n<li><strong>Even temperature<\/strong> <strong>distribution.<\/strong><\/li>\n<\/ul>\n<h3>Technical parameters<\/h3>\n<ul>\n<li>Adjustable flow: 30\u2013300 l\/h.<\/li>\n<li>Minimum \u2206p: 17\u201325 kPa.<\/li>\n<li>Maximum \u2206p: 60 kPa.<\/li>\n<li>Max noise: 25 dB(A).<\/li>\n<\/ul>\n<p>See the full <a href=\"https:\/\/www.itap.it\/en\/?s=917cdeb+e+918cb+\">technical information<\/a> about our <strong>manifolds with dynamic balance<\/strong> on website.<\/p>\n<hr \/>\n<p><strong>Underfloor heating<\/strong> isn\u2019t just about distributing heat, it&#8217;s an <strong>investment in comfort, efficiency, and durability<\/strong>. With <strong>Itap stainless steel manifolds<\/strong>, <strong>dynamic balancing<\/strong> and our <strong>differential by-pass kit<\/strong>, you can deliver high-performance systems that last.<\/p>\n<p><strong>Interested in these products?<br \/>\nReach out to our experts directly by filling out the <a href=\"https:\/\/www.itap.it\/es\/contactos\/\">contact form<\/a>.<\/strong><\/p>\n<p>Stay in the loop! Follow us on our <strong>social media pages<\/strong> for more updates!<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"FAQ\"><\/span><span style=\"color: #c21900;\"><strong>FAQ<\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&nbsp;<\/p>\n<p><strong>How does underfloor heating work?<\/strong><\/p>\n<p>It heats the space evenly from the floor up using PEX or multilayer pipes embedded in screed. Hot water flows through these pipes via a manifold system, warms the floor, and cycles back to the heat source.<\/p>\n<p><strong>How long should it stay on?<\/strong><\/p>\n<p>Continuous, modulated operation is ideal. Avoid frequent on\/off cycles. This keeps the temperature stable and leverages the screed&#8217;s thermal inertia to reduce consumption and imbalances.<\/p>\n<p><strong>How long does it take to warm up?<\/strong><\/p>\n<p>The time needed to heat a room depends on several factors:<\/p>\n<ul>\n<li>screed thickness.<\/li>\n<li>insulation quality.<\/li>\n<li>available power output.<\/li>\n<\/ul>\n<p>In general, it takes a few hours to feel the temperature rise and stabilize.<\/p>\n<p><strong>Can underfloor heating work with parquet floors?<\/strong><\/p>\n<p>Yes, you can. You just have to choose the right type of wood and adhesives, and follow the surface temperature limits set by the manufacturer.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Underfloor heating is one of the most appreciated technologies in the HVAC industry today. It provides even heat distribution, low energy consumption, and great design [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":69348,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[66],"tags":[],"class_list":["post-69919","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-focus-on-es"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Underfloor heating: efficiency and energy stability | Itap Focus on<\/title>\n<meta name=\"description\" content=\"Learn what underfloor heating is, how it works, its benefits, the best manifolds, and the solutions for efficiency and energy stability.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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