{"id":18867,"date":"2025-04-30T09:29:11","date_gmt":"2025-04-30T07:29:11","guid":{"rendered":"https:\/\/leaderservices.be\/blog\/how-do-i-descale-my-water-heater\/"},"modified":"2025-05-26T17:31:43","modified_gmt":"2025-05-26T15:31:43","slug":"how-do-i-descale-my-water-heater","status":"publish","type":"post","link":"https:\/\/leaderservices.be\/en\/blog\/how-do-i-descale-my-water-heater\/","title":{"rendered":"How do I descale my water heater?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Scale can build up in your water heater over time, reducing its efficiency and shortening its lifespan. Descaling is therefore an essential operation to keep your appliance in good condition and ensure optimum hot water production. Although it&#8217;s often advisable to call in a professional, you can also carry out the task yourself by following a few simple steps.  <\/p>\n\n<h2 class=\"wp-block-heading\">Why descale your water heater?<\/h2>\n\n<p class=\"wp-block-paragraph\">The limescale in your water gradually deposits in the heating elements of your water heater, forming layers of scale. This has several undesirable effects: <\/p>\n\n<ul class=\"wp-block-list\">\n<li>Reduced energy efficiency: Scale acts as an insulator, preventing heat from diffusing properly, forcing your water heater to work longer and consume more energy.<br\/><\/li>\n\n\n\n<li>Premature wear and tear: Limescale build-up can damage internal components such as resistors and thermostats, leading to breakdowns.<br\/><\/li>\n\n\n\n<li>Reduced hot water flow: Scale can also reduce the flow of hot water, as it partially blocks the internal pipes.<br\/><\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">When should you descale your water heater?<\/h2>\n\n<p class=\"wp-block-paragraph\">We recommend descaling your water heater every 1 to 2 years, depending on the water hardness in your area. If you notice any signs of reduced performance, such as lower water temperature or longer heating time, this may indicate that descaling is necessary. <\/p>\n\n<h2 class=\"wp-block-heading\">Steps to descale your water heater yourself<\/h2>\n\n<h3 class=\"wp-block-heading\">1. Cut off power or gas supply<\/h3>\n\n<p class=\"wp-block-paragraph\">Before starting, make sure the water heater is switched off. If you have an electric water heater, disconnect it from the power supply. For a gas model, turn off the gas supply and the thermostat. This step is crucial to avoid any risk of electric shock or fire.   <\/p>\n\n<h3 class=\"wp-block-heading\">2. Empty water heater<\/h3>\n\n<p class=\"wp-block-paragraph\">The next step is to empty the appliance. Open the hot water tap to allow the water to drain. Next, connect a hose to the water heater drain and direct it to a drain. You&#8217;ll need to open the drain valve to allow the water to drain completely.   <\/p>\n\n<h3 class=\"wp-block-heading\">3. Prepare descaling solution<\/h3>\n\n<p class=\"wp-block-paragraph\">To descale your water heater, you can use white vinegar or citric acid, which are effective, natural products for dissolving limescale. Fill the water heater with approximately 5 to 10 liters of white vinegar or a solution of citric acid diluted in water (follow the instructions on the citric acid packaging). <\/p>\n\n<h3 class=\"wp-block-heading\">4. Allow solution to take effect<\/h3>\n\n<p class=\"wp-block-paragraph\">Once the product has been poured into the water heater, leave it to act for 3 to 4 hours. This will allow the vinegar or citric acid to dissolve the scale build-up. You can also leave the solution overnight for maximum effectiveness.  <\/p>\n\n<h3 class=\"wp-block-heading\">5. Rinse and fill water heater<\/h3>\n\n<p class=\"wp-block-paragraph\">After allowing the product to take effect, open the drain valve again to rinse the water heater completely. Make sure the water is clear and free of scale deposits. Once the water heater has been thoroughly rinsed, refill it with clean water and check that it is operating correctly.  <\/p>\n\n<h3 class=\"wp-block-heading\">6. Reconnect water heater<\/h3>\n\n<p class=\"wp-block-paragraph\">Finally, reconnect your water heater to its electrical or gas supply, and turn it back on. Check that the water is heating properly and that the hot water flow is optimal. <\/p>\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n<p class=\"wp-block-paragraph\">Regular descaling of your water heater is essential to prolong its life, improve its energy efficiency and avoid costly breakdowns. If you don&#8217;t feel comfortable carrying out this operation, you can always call in a professional for a complete descaling. <\/p>\n\n<p class=\"wp-block-paragraph\">For more information on maintaining your water heater, please visit our<a href=\"https:\/\/leaderservices.be\/en\/heating\/water-heaters\/\"> dedicated water heater page<\/a>, or contact us via our<a href=\"https:\/\/leaderservices.be\/en\/contact\/\"> contact page<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Scale can build up in your water heater over time, reducing its efficiency and shortening its lifespan. Descaling is therefore an essential operation to keep your appliance in good condition and ensure optimum hot water production. Although it&#8217;s often advisable to call in a professional, you can also carry out the task yourself by following &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"How do I descale my water heater?\" class=\"read-more button\" href=\"https:\/\/leaderservices.be\/en\/blog\/how-do-i-descale-my-water-heater\/#more-18867\" aria-label=\"Read more about How do I descale my water heater?\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":18954,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[1],"tags":[226,234],"class_list":["post-18867","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-classifiee","tag-blog_chauffage","tag-blog_chauffe-eau"],"acf":[],"_links":{"self":[{"href":"https:\/\/leaderservices.be\/en\/wp-json\/wp\/v2\/posts\/18867","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/leaderservices.be\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/leaderservices.be\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/leaderservices.be\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/leaderservices.be\/en\/wp-json\/wp\/v2\/comments?post=18867"}],"version-history":[{"count":2,"href":"https:\/\/leaderservices.be\/en\/wp-json\/wp\/v2\/posts\/18867\/revisions"}],"predecessor-version":[{"id":18884,"href":"https:\/\/leaderservices.be\/en\/wp-json\/wp\/v2\/posts\/18867\/revisions\/18884"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/leaderservices.be\/en\/wp-json\/wp\/v2\/media\/18954"}],"wp:attachment":[{"href":"https:\/\/leaderservices.be\/en\/wp-json\/wp\/v2\/media?parent=18867"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/leaderservices.be\/en\/wp-json\/wp\/v2\/categories?post=18867"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/leaderservices.be\/en\/wp-json\/wp\/v2\/tags?post=18867"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}