{"id":131941,"date":"2025-04-09T13:12:07","date_gmt":"2025-04-09T11:12:07","guid":{"rendered":"https:\/\/www.velasolaris.com\/?post_type=funktionen&#038;p=131941"},"modified":"2025-07-10T22:15:03","modified_gmt":"2025-07-10T20:15:03","slug":"heat-pump-sizing","status":"publish","type":"funktionen","link":"https:\/\/www.velasolaris.com\/en\/features\/heat-pump-sizing\/","title":{"rendered":"Heat pump sizing"},"content":{"rendered":"<div class=\"yoast-breadcrumbs\"><span><span><a href=\"https:\/\/www.velasolaris.com\/en\/\">Home<\/a><\/span> <i class=\"fa fa-chevron-right\"><\/i> <span><a href=\"https:\/\/www.velasolaris.com\/en\/features\/\">Features<\/a><\/span> <i class=\"fa fa-chevron-right\"><\/i> <span class=\"breadcrumb_last\" aria-current=\"page\">Heat pump sizing<\/span><\/span><\/div>\n\n\n<figure class=\"wp-block-image alignwide size-full is-style-default\" style=\"margin-top:0;margin-bottom:0\"><img loading=\"lazy\" decoding=\"async\" width=\"1950\" height=\"680\" src=\"https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_sizing_teaser.jpg\" alt=\"Heat pump sizing\" class=\"wp-image-132279\" srcset=\"https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_sizing_teaser.jpg 1950w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_sizing_teaser-300x105.jpg 300w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_sizing_teaser-1024x357.jpg 1024w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_sizing_teaser-768x268.jpg 768w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_sizing_teaser-1536x536.jpg 1536w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_sizing_teaser-1300x453.jpg 1300w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_sizing_teaser-200x70.jpg 200w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_sizing_teaser-400x139.jpg 400w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_sizing_teaser-600x209.jpg 600w\" sizes=\"auto, (max-width: 1950px) 100vw, 1950px\" \/><\/figure>\n\n\n\n<h1 class=\"wp-block-heading has-text-align-center is-style-default\" id=\"h-heat-pump-sizing-how-do-you-find-the-optimum-solution-for-your-project\">Heat pump sizing &#8211; How do you find the optimum solution for your project?<\/h1>\n\n\n\n<p class=\"has-text-align-center is-style-limited-width has-xlarge-font-size wp-block-paragraph\">Would you like to dimension a heat pump or a heat pump cascade, or optimize existing systems in terms of their efficiency and components?  Proper heat pump sizing is essential, as it directly impacts the efficiency, cost-effectiveness, and overall customer satisfaction of your project.<\/p>\n\n\n\n<p class=\"has-text-align-center is-style-limited-width has-xlarge-font-size wp-block-paragraph\">With Polysun, you have access to professional planning software that supports accurate and efficient heat pump sizing. By simulating heating loads and building-specific heat demand, and by matching the heat pump output accordingly, you can evaluate different system options and gain the planning confidence you need.<\/p>\n\n\n\n<div class=\"wp-block-buttons has-custom-font-size has-large-font-size is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-c6788de7 wp-block-buttons-is-layout-flex\" style=\"margin-top:var(--wp--preset--spacing--50)\">\n<div class=\"wp-block-button is-style-outline is-style-outline--1\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.velasolaris.com\/en\/kontakt\/\">Request project support<\/a><\/div>\n\n\n\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-large-font-size has-custom-font-size wp-element-button\" href=\"https:\/\/www.velasolaris.com\/en\/pricing\/\"><strong>T<\/strong>ry for free<\/a><\/div>\n\n\n\n<div class=\"wp-block-button is-style-outline is-style-outline--2\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.velasolaris.com\/en\/webinare\/\">Attend webinar<\/a><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-95ff1f7d wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large is-style-rounded is-style-default\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"681\" src=\"https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_sizing_detail-1-1024x681.png\" alt=\"Heat pump size: comparison of variants and optimisation\" class=\"wp-image-132286\" srcset=\"https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_sizing_detail-1-1024x681.png 1024w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_sizing_detail-1-300x199.png 300w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_sizing_detail-1-768x511.png 768w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_sizing_detail-1-1536x1021.png 1536w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_sizing_detail-1-1300x864.png 1300w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_sizing_detail-1-200x133.png 200w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_sizing_detail-1-400x266.png 400w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_sizing_detail-1-600x399.png 600w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_sizing_detail-1.png 1790w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<h2 class=\"wp-block-heading\" id=\"h-heat-pump-size-or-heat-pump-cascade-size-comparison-of-variants-and-optimisation\">Heat pump size or heat pump cascade size: comparison of variants and optimisation<\/h2>\n\n\n\n<p class=\"has-large-font-size wp-block-paragraph\">An incorrectly dimensioned heat pump can lead to increased operating costs, reduced performance and premature wear. Without simulating the different system variants, there is uncertainty about whether you will achieve your goals such as economic efficiency, CO2 savings or self-consumption.<br>Polysun contains specific manufacturer data and component libraries. This enables you to find the optimum variant to achieve your goals for your problem.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-95ff1f7d wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<h2 class=\"wp-block-heading\" id=\"h-heat-pump-design\">Heat pump design<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">Detailed load profiles: Analyse the heat demand over the entire year.<\/li>\n\n\n\n<li class=\"has-large-font-size\">Climate data integration: Take local weather conditions into account for realistic planning.<\/li>\n\n\n\n<li class=\"has-large-font-size\">Component optimisation: Find the ideal size for heat pump, buffer cylinder, auxiliary heating and add further components to your energy system<\/li>\n\n\n\n<li class=\"has-large-font-size\">Profitability calculation: Determine amortisation times<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large is-style-rounded is-style-default\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"681\" src=\"https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_design-1024x681.png\" alt=\"Heat pump design\" class=\"wp-image-132289\" srcset=\"https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_design-1024x681.png 1024w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_design-300x199.png 300w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_design-768x511.png 768w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_design-1536x1021.png 1536w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_design-1300x864.png 1300w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_design-200x133.png 200w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_design-400x266.png 400w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_design-600x399.png 600w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_design.png 1790w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns alignfull is-layout-flex wp-container-core-columns-is-layout-e5a119bd wp-block-columns-is-layout-flex\" style=\"margin-bottom:var(--wp--preset--spacing--70)\">\n<div class=\"wp-block-column has-body-color-color has-green-10-background-color has-text-color has-background has-link-color wp-elements-886e9fe62ad1bab44a3028edd92eb355 is-layout-constrained wp-block-column-is-layout-constrained\">\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center\" id=\"h-why-customers-use-polysun-for-heat-pump-and-heat-pump-cascade-sizing\">Why customers use Polysun for heat pump and heat pump cascade sizing<\/h2>\n\n\n    <section id=\"res-icon-text-vertical-block_9c7db1ebad550c0cab905653f4dbbe67\" class=\"res-icon-text-vertical alignwide padding-t-sm\"  data-aos=\"res-downIncoming\">\n        <div class=\"container\">\n\t\t\t            <div class=\"row\">\n\t\t\t\t                <div class=\"col\">\n\n                    <div class=\"grid grid-col-3 w-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t                                <div class=\"element layout03 with-bg\" style=\"background-color: var(--white)\">\n\n                                    <div class=\"icon-container\">\n                                        <div class=\"icon\">\n\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"280\" height=\"300\" src=\"https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/POLYSUN-Icon-thermischer-Kreislauf-und-Heizung.png\" class=\"img-fluid w-100\" alt=\"\" srcset=\"https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/POLYSUN-Icon-thermischer-Kreislauf-und-Heizung.png 280w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/POLYSUN-Icon-thermischer-Kreislauf-und-Heizung-187x200.png 187w\" sizes=\"auto, (max-width: 280px) 100vw, 280px\" \/>                                        <\/div>\n\t\t\t\t\t\t\t\t\t\t<h3 class=\"title style-auto\">Heating and cooling with a heat pump<\/h3>                                    <\/div>\n                                    <div class=\"text-container\">\n                                        <div class=\"text\"><ul>\n<li>Optimal sizing for both operating modes<\/li>\n<li>Integration of underfloor heating for efficient heating and passive cooling<\/li>\n<li>Consideration of peak loads during heating and cooling periods<\/li>\n<\/ul>\n<\/div>\n                                    <\/div>\n\n                                <\/div>\n\t\t\t\t\t\t\t                                <div class=\"element layout03 with-bg\" style=\"background-color: var(--white)\">\n\n                                    <div class=\"icon-container\">\n                                        <div class=\"icon\">\n\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"280\" height=\"300\" src=\"https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/POLYSUN-Icon-thermischer-Kreislauf-und-Module.png\" class=\"img-fluid w-100\" alt=\"\" srcset=\"https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/POLYSUN-Icon-thermischer-Kreislauf-und-Module.png 280w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/POLYSUN-Icon-thermischer-Kreislauf-und-Module-187x200.png 187w\" sizes=\"auto, (max-width: 280px) 100vw, 280px\" \/>                                        <\/div>\n\t\t\t\t\t\t\t\t\t\t<h3 class=\"title style-auto\">Power-to-Heat: Combination  Heat pump and photovoltaics<\/h3>                                    <\/div>\n                                    <div class=\"text-container\">\n                                        <div class=\"text\"><ul>\n<li>Maximization of self-consumption of PV electricity<\/li>\n<li>Integration of an energy management system to control the heat pump based on PV yield<\/li>\n<li>Sizing of buffer storage to utilize surplus electricity<\/li>\n<li>Calculation of annual yield for PVT systems<\/li>\n<\/ul>\n<\/div>\n                                    <\/div>\n\n                                <\/div>\n\t\t\t\t\t\t\t                                <div class=\"element layout03 with-bg\" style=\"background-color: var(--white)\">\n\n                                    <div class=\"icon-container\">\n                                        <div class=\"icon\">\n\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"280\" height=\"300\" src=\"https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/POLYSUN-Icon-Vorlauftemperatur.png\" class=\"img-fluid w-100\" alt=\"\" srcset=\"https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/POLYSUN-Icon-Vorlauftemperatur.png 280w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/POLYSUN-Icon-Vorlauftemperatur-187x200.png 187w\" sizes=\"auto, (max-width: 280px) 100vw, 280px\" \/>                                        <\/div>\n\t\t\t\t\t\t\t\t\t\t<h3 class=\"title style-auto\">Combination heat pump and ground source loops<\/h3>                                    <\/div>\n                                    <div class=\"text-container\">\n                                        <div class=\"text\"><ul>\n<li>Determination of the optimal borehole length and quantity<\/li>\n<li>Consideration of geological conditions<\/li>\n<li>Design for long-term efficiency over decades<\/li>\n<\/ul>\n<\/div>\n                                    <\/div>\n\n                                <\/div>\n\t\t\t\t\t\t\t                                <div class=\"element layout03 with-bg\" style=\"background-color: var(--white)\">\n\n                                    <div class=\"icon-container\">\n                                        <div class=\"icon\">\n\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"280\" height=\"300\" src=\"https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/POLYSUN-Icon-thermischer-Kreislauf.png\" class=\"img-fluid w-100\" alt=\"\" srcset=\"https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/POLYSUN-Icon-thermischer-Kreislauf.png 280w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/POLYSUN-Icon-thermischer-Kreislauf-187x200.png 187w\" sizes=\"auto, (max-width: 280px) 100vw, 280px\" \/>                                        <\/div>\n\t\t\t\t\t\t\t\t\t\t<h3 class=\"title style-auto\">Regeneration of geothermal heat sources for heat pumps<\/h3>                                    <\/div>\n                                    <div class=\"text-container\">\n                                        <div class=\"text\"><ul>\n<li>Planning of regeneration strategies to prevent long-term ground cooling<\/li>\n<li>Integration of free cooling for partial regeneration<\/li>\n<li>Design of PVT systems for borehole heat exchanger regeneration<\/li>\n<\/ul>\n<\/div>\n                                    <\/div>\n\n                                <\/div>\n\t\t\t\t\t\t\t                                <div class=\"element layout03 with-bg\" style=\"background-color: var(--white)\">\n\n                                    <div class=\"icon-container\">\n                                        <div class=\"icon\">\n\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"280\" height=\"300\" src=\"https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/POLYSUN-Icon-Warmenetz.png\" class=\"img-fluid w-100\" alt=\"\" srcset=\"https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/POLYSUN-Icon-Warmenetz.png 280w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/POLYSUN-Icon-Warmenetz-187x200.png 187w\" sizes=\"auto, (max-width: 280px) 100vw, 280px\" \/>                                        <\/div>\n\t\t\t\t\t\t\t\t\t\t<h3 class=\"title style-auto\">Design of local heating networks with heat pumps<\/h3>                                    <\/div>\n                                    <div class=\"text-container\">\n                                        <div class=\"text\"><ul>\n<li>Sizing of central heat pump cascade systems for multiple buildings<\/li>\n<li>Creating variants when planning heat pump cascades<\/li>\n<li>Optimization of flow temperatures in the network<\/li>\n<li>Integration of renewable heat sources in low-temperature district heating networks<\/li>\n<\/ul>\n<\/div>\n                                    <\/div>\n\n                                <\/div>\n\t\t\t\t\t\t\t                                <div class=\"element layout03 with-bg\" style=\"background-color: var(--white)\">\n\n                                    <div class=\"icon-container\">\n                                        <div class=\"icon\">\n\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"280\" height=\"300\" src=\"https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/POLYSUN-Icon-Optimierung.png\" class=\"img-fluid w-100\" alt=\"\" srcset=\"https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/POLYSUN-Icon-Optimierung.png 280w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/POLYSUN-Icon-Optimierung-187x200.png 187w\" sizes=\"auto, (max-width: 280px) 100vw, 280px\" \/>                                        <\/div>\n\t\t\t\t\t\t\t\t\t\t<h3 class=\"title style-auto\">Additional challenges<\/h3>                                    <\/div>\n                                    <div class=\"text-container\">\n                                        <div class=\"text\"><ul>\n<li>Consideration of utility provider&#8217;s blocking times in system sizing<\/li>\n<li>Selection of the appropriate operating mode (monovalent, monoenergetic, bivalent)<\/li>\n<li>Integration into existing heating systems (hybrid solutions)<\/li>\n<li>Domestic hot water preparation at high temperatures<\/li>\n<li>Load management in multi-family houses or commercial buildings<\/li>\n<\/ul>\n<\/div>\n                                    <\/div>\n\n                                <\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t                    <\/div>\n                <\/div>\n\t\t\t\t\n\t\t\t\t            <\/div>\n\t\t        <\/div>\n    <\/section>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center\" id=\"h-sizing-of-different-heat-pump-types\">Sizing of different heat pump types<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized is-style-rounded\" style=\"margin-top:0;margin-bottom:0\"><img loading=\"lazy\" decoding=\"async\" width=\"1790\" height=\"1190\" src=\"https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_size.png\" alt=\"Sizing of different heat pump types\" class=\"wp-image-132292\" style=\"width:929px;height:auto\" srcset=\"https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_size.png 1790w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_size-300x199.png 300w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_size-1024x681.png 1024w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_size-768x511.png 768w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_size-1536x1021.png 1536w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_size-1300x864.png 1300w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_size-200x133.png 200w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_size-400x266.png 400w, https:\/\/www.velasolaris.com\/wp-content\/uploads\/2025\/04\/heat_pump_size-600x399.png 600w\" sizes=\"auto, (max-width: 1790px) 100vw, 1790px\" \/><\/figure>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-141f0a35 wp-block-columns-is-layout-flex\" style=\"margin-top:var(--wp--preset--spacing--50)\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\" id=\"h-air-source-heat-pumps\">Air-Source Heat Pumps<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Accurate simulation of air-to-water heat pumps based on manufacturer data<\/li>\n\n\n\n<li>Modeling of both cycling and modulating air-source heat pumps<\/li>\n\n\n\n<li>Optimization of system efficiency through precise performance calculations<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\" id=\"h-brine-source-heat-pumps\">Brine-Source Heat Pumps<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Detailed design of borehole heat exchanger systems<\/li>\n\n\n\n<li>Calculation of optimal borehole length based on soil properties and heating demand<\/li>\n\n\n\n<li>Simulation of long-term ground temperature development<\/li>\n\n\n\n<li>Consideration of regeneration strategies for sustainable efficiency<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\" id=\"h-water-source-heat-pumps\">Water-Source Heat Pumps<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sizing of water-to-water heat pumps for various water sources<\/li>\n\n\n\n<li>Optimization of system performance through precise component selection<\/li>\n\n\n\n<li>Simulation of heat pumps in combination with surface water or groundwater<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-buttons has-custom-font-size has-large-font-size is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-c6788de7 wp-block-buttons-is-layout-flex\" style=\"margin-top:var(--wp--preset--spacing--50)\">\n<div class=\"wp-block-button is-style-outline is-style-outline--3\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.velasolaris.com\/en\/kontakt\/\">Request project support<\/a><\/div>\n\n\n\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-large-font-size has-custom-font-size wp-element-button\" href=\"https:\/\/www.velasolaris.com\/en\/pricing\/\"><strong>T<\/strong>ry for free<\/a><\/div>\n\n\n\n<div class=\"wp-block-button is-style-outline is-style-outline--4\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.velasolaris.com\/en\/webinare\/\">Attend webinar<\/a><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-e5a119bd wp-block-columns-is-layout-flex\" style=\"margin-bottom:var(--wp--preset--spacing--70)\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:12.5%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\">\n<h2 class=\"wp-block-heading\" id=\"h-faq\" style=\"margin-right:0\">FAQ<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1752178229569\"><h3 class=\"schema-faq-question\">How\u00a0do I size a heatpump cascade\u00a0of two heat pumps?<br\/><\/h3> <p class=\"schema-faq-answer\">Polysun offerst specific templates to make desiging of heatpump cascades easy.<br\/>Determine heat demand: Precise sizing of a cascade system with two heat pumps involves several key steps:\u00a0Assess the building\u2019s annual heating and domestic hot water demand as well as the peak load.<br\/><strong>Distribute output:<\/strong>\u00a0Divide the total required output sensibly between the two heat pumps\u2014often, one unit covers the base load while the second handles peak loads.<br\/><strong>System simulation:<\/strong>\u00a0Use simulation software (such as Polysun) to model real-world operation. This allows you to compare different configurations and determine the optimal output distribution, control strategy, and buffer tank size.<br\/><strong>Hydraulics and control:<\/strong>\u00a0Ensure proper hydraulic balancing and intelligent cascade control so both heat pumps work efficiently together and are not oversized.<\/p> <\/div> <\/div>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1742479542446\"><h3 class=\"schema-faq-question\">Is Polysun a heat pump calculator?<\/h3> <p class=\"schema-faq-answer\">Yes, Polysun allows you to design heat pumps as part of an overall energy system. It takes into account heating loads, heating demand, borehole heat exchangers, and additional heat generators such as gas boilers and combined heat and power (CHP) units.<img decoding=\"async\" class=\"wp-image-129872\" style=\"max-width:100%;\" src=\"https:\/\/velasolaris.com\/wp-content\/uploads\/2025\/03\/dummybild01.png\" alt=\"\"\/><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1742479570514\"><h3 class=\"schema-faq-question\">Are there training sessions for heat pump sizing?<\/h3> <p class=\"schema-faq-answer\">Yes, our simulation experts offer you an efficient way to learn how to size heat pumps with Polysun using your own project as an example.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1742479584379\"><h3 class=\"schema-faq-question\">Does Polysun include data from various manufacturers?<\/h3> <p class=\"schema-faq-answer\">Yes, Polysun contains heat pump data from different manufacturers. In the Polysun catalog, you can choose between anonymous and manufacturer-specific components to select your preferred heat pump.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1744113987301\"><h3 class=\"schema-faq-question\">Can Polysun be used for large-scale projects?<\/h3> <p class=\"schema-faq-answer\">Yes, Polysun is used by our customers for large-scale projects, including industrial sites, commercial complexes, and district energy systems. You can select large heat pumps from our catalog or define your own custom heat pump models.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1744114001251\"><h3 class=\"schema-faq-question\">At what project stage is Polysun applied?<\/h3> <p class=\"schema-faq-answer\">Polysun is used in the feasibility study, preliminary planning, conceptual design, approval planning, and detailed design for energy system comparison and planning. During construction supervision and operational support, Polysun helps optimize energy concepts and ensure the successful operation of the energy system.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1744114015602\"><h3 class=\"schema-faq-question\">Can I, as a project owner, bring Polysun into my project, and what are the benefits?<\/h3> <p class=\"schema-faq-answer\">Yes, you can book project support from our Polysun experts to use your time efficiently. Our experts will develop your project together with you in Polysun, allowing you to reach your project goals quickly and directly. Feel free to contact us, and we will discuss the details with you.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1744114026036\"><h3 class=\"schema-faq-question\">Can I optimize existing heat pump systems with Polysun?<\/h3> <p class=\"schema-faq-answer\">Yes, in Polysun, you can model existing heat pump systems and test optimization strategies. This allows you to operate your existing heat pump systems in a technically and economically optimized way.<\/p> <\/div> <\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:12.5%\"><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Simulate heating load and building demand to find the optimal heat pump configuration for efficiency and cost-effectiveness.<\/p>\n","protected":false},"featured_media":132652,"template":"","meta":{"_acf_changed":false,"_price":"","_stock":"","_tribe_ticket_header":"","_tribe_default_ticket_provider":"","_tribe_ticket_capacity":"0","_ticket_start_date":"","_ticket_end_date":"","_tribe_ticket_show_description":"","_tribe_ticket_show_not_going":false,"_tribe_ticket_use_global_stock":"","_tribe_ticket_global_stock_level":"","_global_stock_mode":"","_global_stock_cap":"","_tribe_rsvp_for_event":"","_tribe_ticket_going_count":"","_tribe_ticket_not_going_count":"","_tribe_tickets_list":"[]","_tribe_ticket_has_attendee_info_fields":false},"class_list":["post-131941","funktionen","type-funktionen","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.0 (Yoast SEO v28.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Heat Pump Sizing: Find the Right Fit &amp; Optimize Costs<\/title>\n<meta name=\"description\" content=\"Accurate heat pump sizing made easy: Simulate, compare and optimize systems based on real load profiles and site-specific data with Polysun.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.velasolaris.com\/en\/features\/heat-pump-sizing\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Heat pump sizing\" \/>\n<meta property=\"og:description\" content=\"Accurate heat pump sizing made easy: Simulate, compare and optimize systems based on real load profiles and site-specific data with Polysun.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.velasolaris.com\/en\/features\/heat-pump-sizing\/\" \/>\n<meta property=\"og:site_name\" content=\"POLYSUN\" \/>\n<meta property=\"article:publisher\" 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I size a heatpump cascade\u00a0of two heat pumps?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Polysun offerst specific templates to make desiging of heatpump cascades easy.<br\/>Determine heat demand: Precise sizing of a cascade system with two heat pumps involves several key steps:\u00a0Assess the building\u2019s annual heating and domestic hot water demand as well as the peak load.<br\/><strong>Distribute output:<\/strong>\u00a0Divide the total required output sensibly between the two heat pumps\u2014often, one unit covers the base load while the second handles peak loads.<br\/><strong>System simulation:<\/strong>\u00a0Use simulation software (such as Polysun) to model real-world operation. This allows you to compare different configurations and determine the optimal output distribution, control strategy, and buffer tank size.<br\/><strong>Hydraulics and control:<\/strong>\u00a0Ensure proper hydraulic balancing and intelligent cascade control so both heat pumps work efficiently together and are not oversized.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.velasolaris.com\/en\/features\/heat-pump-sizing\/#faq-question-1742479542446","position":2,"url":"https:\/\/www.velasolaris.com\/en\/features\/heat-pump-sizing\/#faq-question-1742479542446","name":"Is Polysun a heat pump calculator?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes, Polysun allows you to design heat pumps as part of an overall energy system. It takes into account heating loads, heating demand, borehole heat exchangers, and additional heat generators such as gas boilers and combined heat and power (CHP) units.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.velasolaris.com\/en\/features\/heat-pump-sizing\/#faq-question-1742479570514","position":3,"url":"https:\/\/www.velasolaris.com\/en\/features\/heat-pump-sizing\/#faq-question-1742479570514","name":"Are there training sessions for heat pump sizing?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes, our simulation experts offer you an efficient way to learn how to size heat pumps with Polysun using your own project as an example.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.velasolaris.com\/en\/features\/heat-pump-sizing\/#faq-question-1742479584379","position":4,"url":"https:\/\/www.velasolaris.com\/en\/features\/heat-pump-sizing\/#faq-question-1742479584379","name":"Does Polysun include data from various manufacturers?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes, Polysun contains heat pump data from different manufacturers. In the Polysun catalog, you can choose between anonymous and manufacturer-specific components to select your preferred heat pump.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.velasolaris.com\/en\/features\/heat-pump-sizing\/#faq-question-1744113987301","position":5,"url":"https:\/\/www.velasolaris.com\/en\/features\/heat-pump-sizing\/#faq-question-1744113987301","name":"Can Polysun be used for large-scale projects?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes, Polysun is used by our customers for large-scale projects, including industrial sites, commercial complexes, and district energy systems. You can select large heat pumps from our catalog or define your own custom heat pump models.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.velasolaris.com\/en\/features\/heat-pump-sizing\/#faq-question-1744114001251","position":6,"url":"https:\/\/www.velasolaris.com\/en\/features\/heat-pump-sizing\/#faq-question-1744114001251","name":"At what project stage is Polysun applied?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Polysun is used in the feasibility study, preliminary planning, conceptual design, approval planning, and detailed design for energy system comparison and planning. During construction supervision and operational support, Polysun helps optimize energy concepts and ensure the successful operation of the energy system.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.velasolaris.com\/en\/features\/heat-pump-sizing\/#faq-question-1744114015602","position":7,"url":"https:\/\/www.velasolaris.com\/en\/features\/heat-pump-sizing\/#faq-question-1744114015602","name":"Can I, as a project owner, bring Polysun into my project, and what are the benefits?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes, you can book project support from our Polysun experts to use your time efficiently. Our experts will develop your project together with you in Polysun, allowing you to reach your project goals quickly and directly. Feel free to contact us, and we will discuss the details with you.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.velasolaris.com\/en\/features\/heat-pump-sizing\/#faq-question-1744114026036","position":8,"url":"https:\/\/www.velasolaris.com\/en\/features\/heat-pump-sizing\/#faq-question-1744114026036","name":"Can I optimize existing heat pump systems with Polysun?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes, in Polysun, you can model existing heat pump systems and test optimization strategies. This allows you to operate your existing heat pump systems in a technically and economically optimized way.","inLanguage":"en-US"},"inLanguage":"en-US"}]}},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/www.velasolaris.com\/en\/wp-json\/wp\/v2\/funktionen\/131941","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.velasolaris.com\/en\/wp-json\/wp\/v2\/funktionen"}],"about":[{"href":"https:\/\/www.velasolaris.com\/en\/wp-json\/wp\/v2\/types\/funktionen"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.velasolaris.com\/en\/wp-json\/wp\/v2\/media\/132652"}],"wp:attachment":[{"href":"https:\/\/www.velasolaris.com\/en\/wp-json\/wp\/v2\/media?parent=131941"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}