{"id":538,"date":"2018-04-30T11:00:14","date_gmt":"2018-04-30T15:00:14","guid":{"rendered":"https:\/\/www.performanceplumbinginc.com\/blog\/?p=538"},"modified":"2026-06-21T23:27:15","modified_gmt":"2026-06-22T04:27:15","slug":"why-water-heater-isnt-providing-enough-hot-water","status":"publish","type":"post","link":"https:\/\/www.performanceplumbinginc.com\/blog\/water-heater-service\/why-water-heater-isnt-providing-enough-hot-water\/","title":{"rendered":"Why Your Water Heater Isn&#8217;t Providing Enough Hot Water"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-medium wp-image-502\" src=\"https:\/\/www.performanceplumbinginc.com\/blog\/wp-content\/uploads\/2017\/12\/water-heater-repair-222x300.jpg\" alt=\"water-heater-repair\" width=\"222\" height=\"300\" srcset=\"https:\/\/www.performanceplumbinginc.com\/blog\/wp-content\/uploads\/2017\/12\/water-heater-repair-222x300.jpg 222w, https:\/\/www.performanceplumbinginc.com\/blog\/wp-content\/uploads\/2017\/12\/water-heater-repair-768x1040.jpg 768w, https:\/\/www.performanceplumbinginc.com\/blog\/wp-content\/uploads\/2017\/12\/water-heater-repair-756x1024.jpg 756w\" sizes=\"auto, (max-width: 222px) 100vw, 222px\" \/>There are a few different possible symptoms that your water heater is struggling in some way. One of the more obvious ones, of course, is if the system isn\u2019t actually providing any hot water. If your water heater isn\u2019t providing the level of hot water that it should be, there might be a couple of different reasons why. Have a look below for a list of issues that can cause this, and what can be done about them.<!--more--><\/p>\n<h2><span data-sheets-root=\"1\">Sediment Buildup in Your Water Heater Tank<\/span><\/h2>\n<p>This is a common cause of low water heater output, especially in areas with hard water issues. Over time, sediment deposits can build up on the bottom of the water heater tank. If the tank isn\u2019t flushed out often enough (like during a maintenance appointment) the buildup can eventually become so severe that the tank will actually become insulated from the burner assembly. The tank will need to be flushed out by a professional to resolve this issue. If the sediment buildup is bad enough, it may need to be manually scraped out to get rid of it all.<\/p>\n<h2><span data-sheets-root=\"1\">Faulty Heating Element or Burner Assembly<\/span><\/h2>\n<p>Whether you\u2019re using a gas or electric water heater, there is a possibility that the root of your issue is with the heating system itself. Burner assemblies in gas water heaters can become clogged with carbon buildup over time. If the assembly isn\u2019t cleaned out often enough, it can eventually prevent the system from igniting at all. Heating elements are less prone to failure, but can develop dead spots over years of use that will decrease the system\u2019s overall heating output. As far as burner assembly clogs go, having a technician clean out the jets should restore the system to proper working order. If you have a dead spot in your heating element, though, it will need to be replaced to get the output back to where it should be.<\/p>\n<h2><span data-sheets-root=\"1\">Pilot Light or Ignition System Issues<\/span><\/h2>\n<p>If your water heater doesn\u2019t appear to be providing any hot water at all, it\u2019s possible that the pilot light or whatever other ignition system your water heater uses is out. If your system uses a standing pilot light, you can check this by looking to see if the flame is still going. Otherwise, you\u2019re going to need to have a professional check it out for you.<\/p>\n<h2><span data-sheets-root=\"1\">Cracked Dip Tube Reducing Hot Water Supply<\/span><\/h2>\n<p>If your water heater is providing hot water, but it\u2019s interspersed with random spurts of cold water, then you probably have a cracked dip tube. This is a plastic tube that directs all fresh water coming into the water heater towards the bottom of the tank, where it can warm up the fastest. If the dip tube cracks, it can leak cold water from the water line into the hot water leaving the tank. Replacing the dip tube should resolve the issue.<\/p>\n<h2><b>Frequently Asked Questions<\/b><\/h2>\n<p><b>Question: Why is my water heater not providing enough hot water?<\/b><b><br \/>\n<\/b><b>Answer:<\/b><span style=\"font-weight: 400;\"> A water heater may stop providing enough hot water because of sediment buildup, thermostat problems, a damaged dip tube, heating element issues, or a unit that is too small for the household. Performance Plumbing recommends having a professional inspect the system to find the exact cause and prevent repeat problems.<\/span><\/p>\n<p><b>Question: Can sediment buildup reduce my hot water supply?<\/b><b><br \/>\n<\/b><b>Answer:<\/b><span style=\"font-weight: 400;\"> Yes, sediment can collect at the bottom of a tank water heater, especially in areas with hard water. This buildup takes up space inside the tank and makes the system work harder to heat water. Flushing the tank and routine maintenance can help improve performance and extend the unit\u2019s life.<\/span><\/p>\n<p><b>Question: What does a broken dip tube do to a water heater?<\/b><b><br \/>\n<\/b><b>Answer:<\/b><span style=\"font-weight: 400;\"> The dip tube sends cold water to the bottom of the tank so it can be heated properly. If the dip tube is cracked or broken, cold water can mix with hot water near the top of the tank. This can make the water feel lukewarm or run out too quickly.<\/span><\/p>\n<p><b>Question: Could my water heater be too small for my home?<\/b><b><br \/>\n<\/b><b>Answer:<\/b><span style=\"font-weight: 400;\"> Yes, a water heater that is too small may not keep up with showers, laundry, dishwashing, and other hot water demands. If your household has grown or your hot water use has increased, Performance Plumbing can help determine whether repair, maintenance, or replacement with a properly sized unit is the best solution.<\/span><\/p>\n<p><b>Question: When should I call a plumber for not enough hot water?<\/b><b><br \/>\n<\/b><b>Answer:<\/b><span style=\"font-weight: 400;\"> You should call a plumber if your hot water runs out quickly, never gets hot enough, changes temperature suddenly, or keeps having the same issue after basic troubleshooting. Performance Plumbing can inspect the thermostat, heating components, tank condition, and overall system to recommend the right fix.<\/span><\/p>\n<p style=\"text-align: center;\"><strong>Performance Plumbing provides full <a href=\"\/water-heaters\">water heater services in St. Louis, MO.<\/a> If you have a problem with your water heater, <a href=\"\/contact\/schedule-service#content\">contact us today<\/a> to schedule an appointment with one of our expert technicians. We\u2019ll make sure that your water heater is restored to proper operation. <\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Make sure you call for repairs if your water heater isn&#8217;t providing enough hot water. <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[86],"tags":[91,96],"class_list":["post-538","post","type-post","status-publish","format-standard","hentry","category-water-heater-service","tag-st-louis","tag-water-heater-repair"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.performanceplumbinginc.com\/blog\/wp-json\/wp\/v2\/posts\/538","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.performanceplumbinginc.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.performanceplumbinginc.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.performanceplumbinginc.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.performanceplumbinginc.com\/blog\/wp-json\/wp\/v2\/comments?post=538"}],"version-history":[{"count":2,"href":"https:\/\/www.performanceplumbinginc.com\/blog\/wp-json\/wp\/v2\/posts\/538\/revisions"}],"predecessor-version":[{"id":1850,"href":"https:\/\/www.performanceplumbinginc.com\/blog\/wp-json\/wp\/v2\/posts\/538\/revisions\/1850"}],"wp:attachment":[{"href":"https:\/\/www.performanceplumbinginc.com\/blog\/wp-json\/wp\/v2\/media?parent=538"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.performanceplumbinginc.com\/blog\/wp-json\/wp\/v2\/categories?post=538"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.performanceplumbinginc.com\/blog\/wp-json\/wp\/v2\/tags?post=538"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}