{"id":31710,"date":"2026-11-12T16:45:10","date_gmt":"2026-11-12T09:45:10","guid":{"rendered":"https:\/\/pac.co.th\/hot-water-system-budget-checklist\/"},"modified":"2026-11-13T09:18:47","modified_gmt":"2026-11-13T02:18:47","slug":"hot-water-system-budget-checklist","status":"publish","type":"post","link":"https:\/\/pac.co.th\/en\/hot-water-system-budget-checklist\/","title":{"rendered":"6 Checklists for Hot Water System Budgeting for Business in 2027"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"31710\" class=\"elementor elementor-31710 elementor-31688\" data-elementor-settings=\"{&quot;ha_cmc_init_switcher&quot;:&quot;no&quot;}\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a6d816e pac-article-content e-flex e-con-boxed e-con e-parent\" data-id=\"a6d816e\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-32e81ef elementor-widget elementor-widget-text-editor\" data-id=\"32e81ef\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t <p><span style=\"color: #000000;\">     As we enter the budget planning period for 2027, improving hot water production systems may be one of the strategies many businesses are beginning to prioritize. This is especially true for enterprises requiring a continuous supply of hot water, such as hotels, hospitals, and industrial plants, where the hot water system is not just a part of energy expenses but also relates to service quality and operational continuity.<\/span><\/p><p><span style=\"color: #000000;\">     The International Energy Agency (IEA) states in its <span style=\"text-decoration: underline;\"><span style=\"color: #000080; text-decoration: underline;\"><a style=\"color: #000080; text-decoration: underline;\" href=\"https:\/\/www.iea.org\/reports\/energy-efficiency-2025\/buildings\" target=\"_blank\" rel=\"noopener\">Energy Efficiency 2025<\/a><\/span><\/span> report that energy use in buildings accounts for approximately 30% of global final energy consumption. This figure covers all energy systems within a building. For budgeting a hot water system, one should start with actual site data according to the following checklist.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bdfcdbf elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"bdfcdbf\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;headings_by_tags&quot;:[&quot;h2&quot;],&quot;exclude_headings_by_selector&quot;:[],&quot;marker_view&quot;:&quot;bullets&quot;,&quot;no_headings_message&quot;:&quot;No headings were found on this page.&quot;,&quot;container&quot;:&quot;.pac-article-content&quot;,&quot;icon&quot;:{&quot;value&quot;:&quot;far fa-circle&quot;,&quot;library&quot;:&quot;fa-regular&quot;,&quot;rendered_tag&quot;:&quot;&lt;svg class=\\&quot;e-font-icon-svg e-far-circle\\&quot; viewBox=\\&quot;0 0 512 512\\&quot; xmlns=\\&quot;http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\&quot;&gt;&lt;path d=\\&quot;M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8zm0 448c-110.5 0-200-89.5-200-200S145.5 56 256 56s200 89.5 200 200-89.5 200-200 200z\\&quot;&gt;&lt;\\\/path&gt;&lt;\\\/svg&gt;&quot;},&quot;min_height&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:0,&quot;sizes&quot;:[]},&quot;minimize_box&quot;:&quot;yes&quot;,&quot;minimized_on&quot;:&quot;tablet&quot;,&quot;hierarchical_view&quot;:&quot;yes&quot;,&quot;min_height_widescreen&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_laptop&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_tablet_extra&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_mobile_extra&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"table-of-contents.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__header\">\n\t\t\t\t\t\t<h2 class=\"elementor-toc__header-title\">\n\t\t\t\tTable of Contents\t\t\t<\/h2>\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--expand\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__bdfcdbf\" aria-expanded=\"true\" aria-label=\"Open table of contents\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-down\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div>\n\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--collapse\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__bdfcdbf\" aria-expanded=\"true\" aria-label=\"Close table of contents\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-up\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<div id=\"elementor-toc__bdfcdbf\" class=\"elementor-toc__body\">\n\t\t\t<div class=\"elementor-toc__spinner-container\">\n\t\t\t\t<svg class=\"elementor-toc__spinner eicon-animation-spin e-font-icon-svg e-eicon-loading\" aria-hidden=\"true\" viewBox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M500 975V858C696 858 858 696 858 500S696 142 500 142 142 304 142 500H25C25 237 238 25 500 25S975 237 975 500 763 975 500 975Z\"><\/path><\/svg>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e31f1df elementor-widget elementor-widget-heading\" data-id=\"e31f1df\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">1. What are the current costs and where is energy being lost?\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-17cf369 elementor-widget elementor-widget-text-editor\" data-id=\"17cf369\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t <p><span lang=\"th-TH\" style=\"color: #000000;\">     Start by separating the energy consumption of the hot water system from the total electricity or fuel costs. If there are sub-meters or fuel logs, use that data as a baseline. If only a total bill is available, specify that the hot water system portion is an estimate and record the calculation method used.<\/span><\/p><p><span lang=\"th-TH\" style=\"color: #000000;\">Inspect the water heaters, tank and pipe insulation, set temperatures, and circulation pump operation. The inspection results will help determine whether to fix loss points in the existing system or budget for equipment replacement.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-914615a elementor-widget elementor-widget-heading\" data-id=\"914615a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">2. Do the heater and tank sizes support peak hot water usage?\n\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-380f985 elementor-widget elementor-widget-text-editor\" data-id=\"380f985\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t <p><span style=\"color: #000000;\">     Record daily hot water consumption alongside peak hour volume, temperature at the point of use, and periods of simultaneous usage. Hotels should look at data during high occupancy periods, while factories should look at shifts or production cycles.<\/span><\/p><p><span style=\"color: #000000;\">Use this data to select the production capacity and storage tank size together, ensuring the heater has enough time to recover and refill the tank before the next usage cycle. If there are plans to increase rooms or production capacity, estimate the additional demand from the start.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a8f370c elementor-widget elementor-widget-heading\" data-id=\"a8f370c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">3. Can the new system be integrated with existing equipment?\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f34d923 elementor-widget elementor-widget-text-editor\" data-id=\"f34d923\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t <p><span style=\"color: #000000;\">     Survey how much additional power the electrical system can support, whether there is sufficient space for installation and maintenance, and which parts of the existing tanks, pipes, or control systems can still be used. Also, plan for system switching during installation so that critical points of use still have hot water.<\/span><\/p><p><span style=\"color: #000000;\">If considering recovering waste heat from air conditioning or cooling systems to produce hot water, check if there is sufficient heat at the required temperature and time. If production and usage times differ, evaluate the storage tank capacity accordingly.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-13fe550 elementor-widget elementor-widget-heading\" data-id=\"13fe550\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">4. Which option offers the most appropriate total cost?\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9854c61 elementor-widget elementor-widget-text-editor\" data-id=\"9854c61\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t <p><span style=\"color: #000000;\">     Compare improving the existing system, using new equipment alongside the old system, and replacing the entire system using the same hot water demand and evaluation period. Consider the payback period alongside the Life-Cycle Cost, which includes equipment and installation, energy, maintenance, repairs, and replacement costs, by calculating future expenses as present value.<\/span><\/p><p><span style=\"color: #000000;\">For example, <span style=\"text-decoration: underline;\"><span style=\"color: #000080; text-decoration: underline;\"><a style=\"color: #000080; text-decoration: underline;\" href=\"https:\/\/pac.co.th\/en\/products\/pac-heatralized\/\" target=\"_blank\" rel=\"noopener\">PAC Heatralized<\/a><\/span><\/span> models with a COP of approximately 4.0 mean the unit uses 1 unit of electricity to provide approximately 4 units of heat energy to the water.<\/span><\/p><p><span style=\"color: #000000;\">Compared to electric resistance water heaters providing the same amount of heat, this could reduce electricity consumption at the unit level by approximately 75% under comparable conditions. However, the actual system savings depend on usage patterns and all system components.<\/span><\/p><p><span style=\"color: #000000;\">When budgeting, calculate based on actual temperature and usage volume, including energy for pumps and backup equipment, as well as losses from tanks and pipes. If the existing system uses fuel-fired boilers, use the efficiency and fuel price of the existing system to calculate costs at the same hot water load.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0462510 elementor-widget elementor-widget-heading\" data-id=\"0462510\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">5. If a unit stops, can the system still supply hot water to critical points?\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-442f2c3 elementor-widget elementor-widget-text-editor\" data-id=\"442f2c3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t <p><span lang=\"th-TH\" style=\"color: #000000;\">     Identify usage points that require continuous hot water, the temperature that must be maintained, and the allowable downtime for each point. Then, determine backup capacity and methods for switching systems during equipment failure or maintenance.<\/span><\/p><p><span lang=\"th-TH\" style=\"color: #000000;\">Establish acceptance criteria before purchasing, such as the temperature and volume of hot water that must be supplied during peak hours, as well as testing procedures for switching to the backup system.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-001ded6 elementor-widget elementor-widget-heading\" data-id=\"001ded6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">6. How will savings be verified after installation?\n\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7dc8d9e elementor-widget elementor-widget-text-editor\" data-id=\"7dc8d9e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t <p><span lang=\"th-TH\" style=\"color: #000000;\">     Define measurement points and collect data before system improvement to compare with post-installation data. Measure energy used, hot water volume, and inlet\/outlet water temperatures, counting equipment within the same scope for both periods, such as water heaters and related pumps.<\/span><\/p><p><span style=\"color: #000000;\"><span lang=\"th-TH\">When usage volume changes according to occupancy or production cycles, adjust the comparison baseline according to the heat load the system must provide. <\/span><span lang=\"th-TH\">This method helps evaluate savings from system improvements more accurately relative to actual operating conditions.<\/span><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d1d6e48 elementor-widget elementor-widget-heading\" data-id=\"d1d6e48\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Budgeting for a Cost-Effective Hot Water System Starts with Understanding\n\n\n\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6b15d4d elementor-widget elementor-widget-text-editor\" data-id=\"6b15d4d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t <p><span style=\"color: #000000;\">     Budgeting for a hot water system for 2027 does not always have to start with choosing new equipment. Instead, it should begin with understanding the current system, including energy costs, hot water usage volume, and existing system constraints.<\/span><\/p><p><span style=\"color: #000000;\">With this data, businesses can compare options and plan investments more comprehensively, whether through improving existing systems or integrating new technologies. You can consult the PAC engineering team to help evaluate system suitability for actual usage patterns for cost-effectiveness and efficiency. <span style=\"text-decoration: underline;\"><span style=\"color: #ff0000;\"><strong><a style=\"color: #ff0000; text-decoration: underline;\" href=\"https:\/\/lin.ee\/Z7RHl51\">Click<\/a><\/strong><\/span><\/span><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>As we enter the budget planning period for 2027, improving hot water production systems may be one of the strategies many businesses are beginning to prioritize. This is especially true for enterprises requiring a continuous supply of hot water, such as hotels, hospitals, and industrial plants, where the hot water system is not just a [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":31711,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":"","_links_to":"","_links_to_target":""},"categories":[181],"tags":[],"class_list":["post-31710","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-insights-knowledge"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>6 Checklists for Hot Water System Budgeting for Business in 2027 | PAC<\/title>\n<meta name=\"description\" content=\"Budget for your business hot water system in 2027 with 6 essential checklists, covering everything from existing costs 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