{"id":3207,"date":"2026-06-04T09:41:10","date_gmt":"2026-06-04T09:41:10","guid":{"rendered":"https:\/\/mywarmhome.co.uk\/stage\/?page_id=3207"},"modified":"2026-10-14T18:32:27","modified_gmt":"2026-10-14T18:32:27","slug":"heat-pump-types-gshp","status":"publish","type":"page","link":"https:\/\/mywarmhome.co.uk\/stage\/heat-pump-types-gshp\/","title":{"rendered":"Heat Pump Types GSHP"},"content":{"rendered":"\n<div class=\"wp-block-cover alignfull\" style=\"min-height:500px;aspect-ratio:unset;\"><img decoding=\"async\" class=\"wp-block-cover__image-background\" alt=\"\" src=\"https:\/\/mywarmhome.co.uk\/stage\/wp-content\/uploads\/2026\/06\/loop1head.jpg\" data-object-fit=\"cover\"\/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim-70 has-background-dim\" style=\"background-color:#072C3A\"><\/span><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<h1 class=\"wp-block-heading has-text-color\" style=\"color:#FFFAF2;font-size:clamp(42px,6vw,82px)\">Ground source<br>heat pumps.<\/h1>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#FFFFFF;font-size:clamp(15.197px, 0.95rem + ((1vw - 3.2px) * 0.765), 23px);\">A practical guide to ground loops, boreholes and the plant room.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group alignfull has-background has-global-padding is-layout-constrained wp-container-core-group-is-layout-9cb34995 wp-block-group-is-layout-constrained\" style=\"background-color:#134558;padding-top:23px;padding-right:24px;padding-bottom:23px;padding-left:24px\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#F29A3F;font-size:14px\">GROUND SOURCE HEAT PUMPS<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-color\" style=\"color:#FFFAF2;font-size:clamp(32px,4vw,54px)\">From the ground to your home.<\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-794e3cfa wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#F29A3F;font-size:clamp(23.043px, 1.44rem + ((1vw - 3.2px) * 1.466), 38px);\">01<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-color\" style=\"color:#FFFFFF;font-size:clamp(14.642px, 0.915rem + ((1vw - 3.2px) * 0.721), 22px);\">COLLECT<\/h3>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#FFFFFF;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.196), 16px);\">Ground loops or boreholes absorb low-temperature heat.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#F29A3F;font-size:clamp(23.043px, 1.44rem + ((1vw - 3.2px) * 1.466), 38px);\">02<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-color\" style=\"color:#FFFFFF;font-size:clamp(14.642px, 0.915rem + ((1vw - 3.2px) * 0.721), 22px);\">CIRCULATE<\/h3>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#FFFFFF;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.196), 16px);\">A ground-loop fluid carries this energy to the heat pump.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#F29A3F;font-size:clamp(23.043px, 1.44rem + ((1vw - 3.2px) * 1.466), 38px);\">03<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-color\" style=\"color:#FFFFFF;font-size:clamp(14.642px, 0.915rem + ((1vw - 3.2px) * 0.721), 22px);\">UPGRADE<\/h3>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#FFFFFF;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.196), 16px);\">The refrigeration circuit raises the useful temperature.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#F29A3F;font-size:clamp(23.043px, 1.44rem + ((1vw - 3.2px) * 1.466), 38px);\">04<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-color\" style=\"color:#FFFFFF;font-size:clamp(14.642px, 0.915rem + ((1vw - 3.2px) * 0.721), 22px);\">DELIVER<\/h3>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#FFFFFF;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.196), 16px);\">Heat is transferred to radiators, floors and hot water.<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignfull has-background has-global-padding is-layout-constrained wp-container-core-group-is-layout-9cb34995 wp-block-group-is-layout-constrained\" style=\"background-color:#F3EEE4;padding-top:23px;padding-right:24px;padding-bottom:23px;padding-left:24px\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#F29A3F;font-size:14px\">THE SIMPLE VERSION<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-color\" style=\"color:#134558;font-size:clamp(32px,4vw,54px)\">A heat mover, not a heat maker.<\/h2>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#263D45;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.392), 18px);\">Ground source heat pumps collect naturally stored low-temperature heat from the ground and transfer it into a building using a refrigeration cycle. The buried collection system is usually out of sight; the heat pump and controls are in a plant room or utility space.<\/p>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#263D45;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.392), 18px);\">Ground temperatures tend to be more stable than outdoor air temperatures. That can support efficient operation, but actual performance depends on ground conditions, system design, flow temperatures and heating demand.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignfull has-background has-global-padding is-layout-constrained wp-container-core-group-is-layout-9cb34995 wp-block-group-is-layout-constrained\" style=\"background-color:#FFFFFF;padding-top:23px;padding-right:24px;padding-bottom:23px;padding-left:24px\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#F29A3F;font-size:14px\">COLLECTING HEAT<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-color\" style=\"color:#134558;font-size:clamp(32px,4vw,54px)\">Horizontal loops or vertical boreholes?<\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-794e3cfa wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading has-text-color\" style=\"color:#134558;font-size:clamp(17.905px, 1.119rem + ((1vw - 3.2px) * 0.99), 28px);\">Horizontal ground loops<\/h3>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#263D45;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.392), 18px);\">Long plastic pipes are laid in trenches across a garden or field. A water-and-antifreeze mixture circulates through them and picks up heat from the surrounding ground.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Typical burial depth: approximately 1\u20132 metres.<\/li>\n\n\n\n<li>Often requires substantial available land and excavation.<\/li>\n\n\n\n<li>Loop lengths and land area depend on ground conditions and the property\u2019s calculated heat demand.<\/li>\n\n\n\n<li>Can be less expensive than drilling where sufficient space exists.<\/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 has-text-color\" style=\"color:#134558;font-size:clamp(17.905px, 1.119rem + ((1vw - 3.2px) * 0.99), 28px);\">Vertical boreholes<\/h3>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#263D45;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.392), 18px);\">Where space is limited, specialist contractors drill boreholes and install sealed U-shaped pipes. The boreholes are grouted to provide effective heat transfer and protect the ground.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Boreholes may be tens to hundreds of metres deep.<\/li>\n\n\n\n<li>Requires geological assessment and specialist drilling.<\/li>\n\n\n\n<li>Usually uses less surface land than horizontal loops.<\/li>\n\n\n\n<li>Depth, number and spacing must be designed for the actual property.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6ad5886bd012a&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6ad5886bd012a\" class=\"wp-block-image aligncenter size-full wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1536\" height=\"1024\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/mywarmhome.co.uk\/stage\/wp-content\/uploads\/2026\/10\/gshp1new.jpg\" alt=\"\" class=\"wp-image-5446\" srcset=\"https:\/\/mywarmhome.co.uk\/stage\/wp-content\/uploads\/2026\/10\/gshp1new.jpg 1536w, https:\/\/mywarmhome.co.uk\/stage\/wp-content\/uploads\/2026\/10\/gshp1new-300x200.jpg 300w, https:\/\/mywarmhome.co.uk\/stage\/wp-content\/uploads\/2026\/10\/gshp1new-1024x683.jpg 1024w, https:\/\/mywarmhome.co.uk\/stage\/wp-content\/uploads\/2026\/10\/gshp1new-768x512.jpg 768w\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">Ground collector installation \u2014 example from the original page<\/figcaption><\/figure>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#263D45;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.392), 18px);\"><strong>Design note:<\/strong> Original example ranges (such as 300\u20131,000+ metres of pipe, 50\u2013200-metre boreholes and 200\u20131,000m\u00b2 of land) are illustrative, not sizing rules. Ground thermal conductivity, borehole yield, load profiles and spacing determine the actual installation.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignfull has-background has-global-padding is-layout-constrained wp-container-core-group-is-layout-9cb34995 wp-block-group-is-layout-constrained\" style=\"background-color:#F3EEE4;padding-top:23px;padding-right:24px;padding-bottom:23px;padding-left:24px\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#F29A3F;font-size:14px\">THE GROUND COLLECTOR<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-color\" style=\"color:#134558;font-size:clamp(32px,4vw,54px)\">What changes with depth?<\/h2>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#263D45;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.392), 18px);\">Temperatures near the surface vary with the seasons. Deeper ground generally experiences smaller seasonal swings, although temperatures depend on location, geology and the borehole design.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Approximate depth<\/th><th>Illustrative ground temperature<\/th><\/tr><\/thead><tbody><tr><td>Surface<\/td><td>Varies considerably<\/td><\/tr><tr><td>1.5 m<\/td><td>8\u201312\u00b0C<\/td><\/tr><tr><td>15 m+<\/td><td>10\u201313\u00b0C<\/td><\/tr><tr><td>100 m+<\/td><td>11\u201314\u00b0C<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#263D45;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.392), 18px);\">These are broad illustrations carried over from the original article, not guaranteed site temperatures. A ground investigation is needed before design.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignfull has-background has-global-padding is-layout-constrained wp-container-core-group-is-layout-9cb34995 wp-block-group-is-layout-constrained\" style=\"background-color:#FFFFFF;padding-top:23px;padding-right:24px;padding-bottom:23px;padding-left:24px\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#F29A3F;font-size:14px\">CONNECTING THE LOOPS<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-color\" style=\"color:#134558;font-size:clamp(32px,4vw,54px)\">Manifolds and inspection chambers.<\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-794e3cfa wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading has-text-color\" style=\"color:#134558;font-size:clamp(17.905px, 1.119rem + ((1vw - 3.2px) * 0.99), 28px);\">Manifolds<\/h3>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#263D45;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.392), 18px);\">Think of the manifold as a traffic junction. It connects multiple ground circuits to the heat pump, enables flow balancing and may let individual loops be isolated.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Collects and distributes ground-loop flow.<\/li>\n\n\n\n<li>Allows balancing and isolation.<\/li>\n\n\n\n<li>May be housed in the plant room or a protected chamber.<\/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 has-text-color\" style=\"color:#134558;font-size:clamp(17.905px, 1.119rem + ((1vw - 3.2px) * 0.99), 28px);\">Inspection access<\/h3>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#263D45;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.392), 18px);\">Where manifolds are buried, an accessible chamber or hatch allows an engineer to inspect joints, valves and pressure and carry out maintenance.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Chamber sizing should suit the manifold and safe access.<\/li>\n\n\n\n<li>The original page lists 450 \u00d7 450 mm and 600 \u00d7 600 mm as examples.<\/li>\n\n\n\n<li>Covers, drainage and frost protection are design considerations.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignfull has-background has-global-padding is-layout-constrained wp-container-core-group-is-layout-9cb34995 wp-block-group-is-layout-constrained\" style=\"background-color:#134558;padding-top:23px;padding-right:24px;padding-bottom:23px;padding-left:24px\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#F29A3F;font-size:14px\">THE REFRIGERATION CYCLE<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-color\" style=\"color:#FFFAF2;font-size:clamp(32px,4vw,54px)\">How the collected heat becomes useful.<\/h2>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#FFFFFF;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.392), 18px);\">Ground-loop liquid and refrigerant are separate circuits. A heat exchanger transfers energy from the ground-loop fluid to the heat pump refrigerant.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-794e3cfa wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#F29A3F;font-size:clamp(20px, 1.25rem + ((1vw - 3.2px) * 1.176), 32px);\">01<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-color\" style=\"color:#FFFFFF;font-size:clamp(14.082px, 0.88rem + ((1vw - 3.2px) * 0.678), 21px);\">Evaporate<\/h3>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#FFFFFF;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.392), 18px);\">Refrigerant absorbs heat and evaporates.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#F29A3F;font-size:clamp(20px, 1.25rem + ((1vw - 3.2px) * 1.176), 32px);\">02<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-color\" style=\"color:#FFFFFF;font-size:clamp(14.082px, 0.88rem + ((1vw - 3.2px) * 0.678), 21px);\">Compress<\/h3>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#FFFFFF;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.392), 18px);\">The compressor raises the vapour\u2019s pressure and temperature.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#F29A3F;font-size:clamp(20px, 1.25rem + ((1vw - 3.2px) * 1.176), 32px);\">03<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-color\" style=\"color:#FFFFFF;font-size:clamp(14.082px, 0.88rem + ((1vw - 3.2px) * 0.678), 21px);\">Condense<\/h3>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#FFFFFF;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.392), 18px);\">Useful heat passes into the heating water as refrigerant condenses.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#F29A3F;font-size:clamp(20px, 1.25rem + ((1vw - 3.2px) * 1.176), 32px);\">04<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-color\" style=\"color:#FFFFFF;font-size:clamp(14.082px, 0.88rem + ((1vw - 3.2px) * 0.678), 21px);\">Expand<\/h3>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#FFFFFF;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.392), 18px);\">Pressure drops through an expansion device so the cycle can repeat.<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignfull has-background has-global-padding is-layout-constrained wp-container-core-group-is-layout-9cb34995 wp-block-group-is-layout-constrained\" style=\"background-color:#F3EEE4;padding-top:23px;padding-right:24px;padding-bottom:23px;padding-left:24px\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#F29A3F;font-size:14px\">INDOOR EQUIPMENT<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-color\" style=\"color:#134558;font-size:clamp(32px,4vw,54px)\">Inside the plant room.<\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-794e3cfa wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#263D45;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.392), 18px);\">The ground source heat pump itself is usually indoors, alongside equipment selected for the property. The layout varies: not every system needs a buffer tank, and some functions are built into the heat pump.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Heat pump and source-side circulation equipment<\/li>\n\n\n\n<li>Heating circulation pumps, valves and controls<\/li>\n\n\n\n<li>Hot-water cylinder, if the system produces stored hot water<\/li>\n\n\n\n<li>Expansion vessels and safety devices<\/li>\n\n\n\n<li>Optional buffer vessel, depending on the hydraulic design<\/li>\n\n\n\n<li>Insulated pipework and electrical connections<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#263D45;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.392), 18px);\">Allow enough clearance for safe servicing and installation; plant-room dimensions are equipment-specific.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6ad5886bd259c&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6ad5886bd259c\" class=\"wp-block-image aligncenter size-full wp-lightbox-container\"><img decoding=\"async\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/mywarmhome.co.uk\/stage\/wp-content\/uploads\/2026\/05\/pipework2.jpg\" alt=\"Insulated ground source heat pump plant room pipework\" style=\"object-fit:cover\"\/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">An example of plant-room pipework<\/figcaption><\/figure>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignfull has-background has-global-padding is-layout-constrained wp-container-core-group-is-layout-9cb34995 wp-block-group-is-layout-constrained\" style=\"background-color:#FFFFFF;padding-top:23px;padding-right:24px;padding-bottom:23px;padding-left:24px\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#F29A3F;font-size:14px\">SYSTEM TEMPERATURES<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-color\" style=\"color:#134558;font-size:clamp(32px,4vw,54px)\">What temperatures might you see?<\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-794e3cfa wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading has-text-color\" style=\"color:#134558;font-size:clamp(17.371px, 1.086rem + ((1vw - 3.2px) * 0.944), 27px);\">Ground-loop side<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Stage<\/th><th>Illustrative temperature<\/th><\/tr><\/thead><tbody><tr><td>Fluid leaving ground<\/td><td>6\u201312\u00b0C<\/td><\/tr><tr><td>Fluid returning to ground<\/td><td>2\u20138\u00b0C<\/td><\/tr><\/tbody><\/table><\/figure>\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 has-text-color\" style=\"color:#134558;font-size:clamp(17.371px, 1.086rem + ((1vw - 3.2px) * 0.944), 27px);\">Heating-water side<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>System<\/th><th>Illustrative flow temperature<\/th><\/tr><\/thead><tbody><tr><td>Underfloor heating<\/td><td>30\u201345\u00b0C<\/td><\/tr><tr><td>Low-temperature radiators<\/td><td>40\u201355\u00b0C<\/td><\/tr><tr><td>Domestic hot water<\/td><td>50\u201360\u00b0C<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#263D45;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.392), 18px);\">The examples above are not operating targets for all installations. Some modern ground source heat pumps can produce higher flow temperatures, but efficiency and available output depend on the model and operating conditions.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignfull has-background has-global-padding is-layout-constrained wp-container-core-group-is-layout-9cb34995 wp-block-group-is-layout-constrained\" style=\"background-color:#F3EEE4;padding-top:23px;padding-right:24px;padding-bottom:23px;padding-left:24px\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#F29A3F;font-size:14px\">BENEFITS AND TRADE-OFFS<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-color\" style=\"color:#134558;font-size:clamp(32px,4vw,54px)\">The pros and cons.<\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-794e3cfa wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading has-text-color\" style=\"color:#134558;font-size:clamp(17.905px, 1.119rem + ((1vw - 3.2px) * 0.99), 28px);\">Potential advantages<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Stable source temperatures may support high seasonal efficiency.<\/li>\n\n\n\n<li>No large outdoor fan is normally needed.<\/li>\n\n\n\n<li>Ground collectors can have long service lives if properly designed and installed.<\/li>\n\n\n\n<li>Can reduce emissions compared with higher-carbon heating, depending on electricity supply and displaced fuel.<\/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 has-text-color\" style=\"color:#134558;font-size:clamp(17.905px, 1.119rem + ((1vw - 3.2px) * 0.99), 28px);\">Important considerations<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Higher upfront cost than many alternatives.<\/li>\n\n\n\n<li>Horizontal installations require space and can disrupt gardens.<\/li>\n\n\n\n<li>Boreholes require specialist drilling and site investigation.<\/li>\n\n\n\n<li>Running-cost and payback outcomes depend on tariff, efficiency and heating demand.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#263D45;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.392), 18px);\"><strong>Illustrative costs in the original article:<\/strong> horizontal loops \u00a315,000\u2013\u00a330,000+ and borehole systems \u00a320,000\u2013\u00a345,000+. These are not live quotations; ask for an itemised, property-specific design and price.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignfull has-background has-global-padding is-layout-constrained wp-container-core-group-is-layout-9cb34995 wp-block-group-is-layout-constrained\" style=\"background-color:#134558;padding-top:23px;padding-right:24px;padding-bottom:23px;padding-left:24px\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#F29A3F;font-size:14px\">BEFORE YOU COMMIT<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-color\" style=\"color:#FFFAF2;font-size:clamp(32px,4vw,54px)\">Get the assessment and design right.<\/h2>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#FFFFFF;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.392), 18px);\">A reliable installation starts with room-by-room heat-loss calculations, an assessment of the ground collector, emitter sizing and suitable heating controls. Check access, excavation or drilling impacts, relevant permissions, commissioning and maintenance arrangements.<\/p>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#FFFFFF;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.392), 18px);\">Choose a competent installer and compare estimates of seasonal performance and electricity costs. Ground conditions should be investigated rather than assumed.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignfull has-background has-global-padding is-layout-constrained wp-container-core-group-is-layout-9cb34995 wp-block-group-is-layout-constrained\" style=\"background-color:#FFFFFF;padding-top:23px;padding-right:24px;padding-bottom:23px;padding-left:24px\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#F29A3F;font-size:14px\">FURTHER READING<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-color\" style=\"color:#134558;font-size:clamp(32px,4vw,54px)\">Heat pump manufacturers and resources.<\/h2>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#263D45;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.392), 18px);\">The original page includes a broad directory of heat pump manufacturers. Not every company listed necessarily supplies domestic ground source systems; check each company\u2019s current product range.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-color\" style=\"color:#134558;font-size:clamp(16.293px, 1.018rem + ((1vw - 3.2px) * 0.854), 25px);\">UK and UK-market suppliers<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.vaillant.co.uk\">Vaillant<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.worcester-bosch.co.uk\">Worcester Bosch<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/idealheating.com\">Ideal Heating<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.grantuk.com\">Grant UK<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.calorex.com\">Calorex<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.airahome.com\">Aira<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/kensa.co.uk\/\">Kensa<\/a><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-text-color\" style=\"color:#134558;font-size:clamp(16.293px, 1.018rem + ((1vw - 3.2px) * 0.854), 25px);\">European manufacturers<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.viessmann.co.uk\">Viessmann<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.stiebel-eltron.co.uk\">Stiebel Eltron<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.nibe.eu\">NIBE<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.bosch-thermotechnology.com\">Bosch Thermotechnology<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.vaillant-group.com\">Vaillant Group<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.kronoterm.com\">Kronoterm<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.ochsner.com\">Ochsner<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.hoval.com\">Hoval<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.dimplex.co.uk\">Dimplex<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.mastertherm.com\">MasterTherm<\/a><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-text-color\" style=\"color:#134558;font-size:clamp(16.293px, 1.018rem + ((1vw - 3.2px) * 0.854), 25px);\">Asian manufacturers<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/les.mitsubishielectric.co.uk\">Mitsubishi Electric<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.daikin.co.uk\">Daikin<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.aircon.panasonic.eu\/GB_en\">Panasonic<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.hitachiaircon.com\">Hitachi<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.samsung.com\/uk\/business\/climate\">Samsung<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.lg.com\/uk\/business\/air-solution\">LG<\/a><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-text-color\" style=\"color:#134558;font-size:clamp(16.293px, 1.018rem + ((1vw - 3.2px) * 0.854), 25px);\">Other international manufacturers<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.carrier.com\">Carrier<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.trane.com\">Trane<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.gree.com\">Gree<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.midea.com\">Midea<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.toshiba-aircon.co.uk\">Toshiba<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.fujitsu-general.com\">Fujitsu General<\/a><\/li>\n<\/ul>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>GROUND SOURCE HEAT PUMPS From the ground to your home. 01 COLLECT Ground loops or boreholes absorb low-temperature heat. 02 CIRCULATE A ground-loop fluid carries this energy to the heat pump. 03 UPGRADE The refrigeration circuit raises the useful temperature. 04 DELIVER Heat is transferred to radiators, floors and hot water. THE SIMPLE VERSION A [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"pagelayer_contact_templates":[],"_pagelayer_content":"","footnotes":""},"class_list":["post-3207","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/mywarmhome.co.uk\/stage\/wp-json\/wp\/v2\/pages\/3207","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mywarmhome.co.uk\/stage\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/mywarmhome.co.uk\/stage\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/mywarmhome.co.uk\/stage\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mywarmhome.co.uk\/stage\/wp-json\/wp\/v2\/comments?post=3207"}],"version-history":[{"count":12,"href":"https:\/\/mywarmhome.co.uk\/stage\/wp-json\/wp\/v2\/pages\/3207\/revisions"}],"predecessor-version":[{"id":5450,"href":"https:\/\/mywarmhome.co.uk\/stage\/wp-json\/wp\/v2\/pages\/3207\/revisions\/5450"}],"wp:attachment":[{"href":"https:\/\/mywarmhome.co.uk\/stage\/wp-json\/wp\/v2\/media?parent=3207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}