HPWHs transfer heat from the surrounding air to the water and will produce exhaust air that is cool and dry. Refrigerant can be used to heat and cool a heat pump. The extra space is required because of how ground source heat pumps work. This article looks into exactly how much space is required in order to install a heat pump, some misconceptions around heat pump systems, as well as outlining the essential things you need to know about heat pumps and why they are a great option for you. For some properties, the option of a vertical borehole system provides an alternative when space is limited or ground conditions are less than ideal. The heat pump itself requires little space, it is compact and can be placed on the outside walls of your home, making it cheaper and easier to install than a ground source heat pump. The heat pump is suited for between 250 and 450 square feet. Note that this does not include the cost of installation labor. Ground arrays can be very large and the space you will need to install one will depend on the type of heat pump you want to install. Boreholes are a more expensive method of installation; this is because of the cost of transporting the drilling rig and the specialist team that are needed to operate it. There are quite often misconceptions about renewable heating, especially when it comes to heat pumps. Your garden will also need to be large enough to for the machinery required to operate, drill the boreholes and lay the ground loops to make your project feasible. There would be no need for defrost cycles during the day. Since the installation is the main cost, having one already fitted and running will be an advantage if and when it comes to selling your property. This is not to say you cant choose a valid and functional system, but we hope that in the future the technology will develop and allow for an array of combinations. A solar heater, on the other hand, regulates water temperature rather than heating the air. The information surrounding these green options for heating a home is often misleading, outdated, or simply unavailable. You dont need planning permission for a heat pump because they come under permitted development. HVAC systems vary in size and the square footage of your home will affect the type and size of HVAC system you need. During the summer, an air source heat pump can also allow for cooling of the house if necessary. In contrast, combustion furnaces use 4 units of input energy to get 4 units of heat energy out. These cookies will be stored in your browser only with your consent. The small mechanical room needs to be slightly modified. This cookie is set by GDPR Cookie Consent plugin. The maximum length for a loop of pipe will be 400m but depending on the size of the heat pump required you may require 2 or more ground loops. As well as low running costs, you can get a heat pump grant to reduce the upfront cost of the unit. Do ground source heat pumps use a lot of electricity? The privacy screen has something on it. Both come with their own pros and cons, but the good news is that both technologies are eligible for the renewable heat incentive (RHI). How much space do you need around HVAC unit? There are a lot of factors that go into calculating your heat pump size, and it can be complicated to determine how each of those affects your heat pump needs. The now cooled air is then expelled. Any worries about space, noisiness, and inefficiency can be dispelled due to the various options available that can suit your home. The heat pump is much more efficient than a purely electrical heater would be, which is one of its strongest benefits. Existing heat energy can be moved into your home. The heat pump does not draw air from outside. You will need around 700 square metres of space for a horizontal ground source heat pump to be installed. This leaves the ground loops a few metres underground, where they will draw heat from. The interior space required for both types of ground source heat types is much more similar to air source heat pumps. Many properties do not have the available space for a ground source heat pump and this is why air source heat pumps are the most common popular heat pump option in the UK. A ground source heat pump will need a considerable amount more space than an air source heat pump. In the majority of cases, residential heat pumps are installed in a utility room, garage, or outbuilding. A recommended alternative to radiator upgrades can be underfloor heating but underfloor heating can be expensive. A heat pump system can be cheaper to run than a fossil fuel heating system. An air source heat pump functions by transferring heat from the air outside, into a liquid form which moves through a compressor where the temperature can be raised and then pumped around the home. One way in which a ground source heat pump system can be installed is horizontally in trenches in the ground. A 4-ton heat pump is rated at 48,000 BTU per hour. For industrial heat pump systems, it is not uncommon to have two or more heat pumps working together in a cascade style system to provide the heat output that is needed, which would typically involve having a dedicated plant room. The cookie is used to store the user consent for the cookies in the category "Other. Air source heat pumps dont require planning permission because they are considered permitted developments. If you convert that into kW, that's a 22 kW heat pump. On average the surface area of land required is roughly 2.5 times the square meterage of the property. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The standard recommendation for clearances around a heat pump condenser (outdoor unit) are: minimum one foot at sides, except two feet away from any solid wall, and five feet open above. When you need cool air, it takes heat out of the air indoors. If you have a heat pump thats too big for your home, its not good for the motor. How do I protect my heat pump in the winter? Its possible to install them on an internal wall that divides 2 rooms, but its more expensive and time consuming. This is mainly the type of ground that you have, for example green sand and clay are not ideal, whereas rock and wet ground are better conditions. If you are planning to get a heat pump installed, you will need to consider where the unit will go. Typically, for horizontal ground loops trenches are 100 metres long and 1-2 metres deep. Recommended radiator sizes for ground source heat pumps are usually recommended to be 2.5 times larger than ordinary radiators installed for a gas boiler. The minimum clearance for the heat pumps outdoor unit is 24 inches. Privacy screens can be used to hide your heat pump unit. A quality 3-ton heat pump can effectively heat or cool an average area of 1,500 square feet but will be too large for smaller spaces. A condenser must suck lots of air in through the sides of the unit and exhust . Lastly, the value of a home can increase with a properly installed GSHP. Depending on the size of your home and the heat load it takes will affect how many trenches you need. Here is how air source heat pumps work. You will normally need at least 1 borehole for every 6kW of energy needed. This means that the heating system can be set up practically anywhere and produce heat using the natural world, leaving your home heated and your carbon footprint reduced. An air source heat pump is a popular renewable heating option thanks to its versatility. You can hide a heat pump provided you maintain proper clearances around the unit for adequate airflow. If you want to do a vertical ground loop, youll need at least one or more boreholes. Can you keep the heat pump out of your house? If you use scrapers or other tools on your heat pump, it will damage it. How Much Wattage Does a Heat Pump Use? An air source heat pump functions by transferring heat from the air outside, into a liquid form which moves through a compressor where the temperature can be raised and then pumped around the home. Air source heat pumps take heat from the air outside to the home and move it into a system where temperature can be raised and pumped around the home, ground source heat pumps do pretty much the same but extract the heat from a series of pipes underground, a biomass boiler can use wood pellets, chips, or logs to be burnt, this converts the wood into heat to be sent around the home via central heating. Discover more about A Greener Alternative and what makes us a leading installer of renewable heating systems in Sussex and The South East today, 2021 A Greener Alternative. However, they do require a larger amount of outdoor space than a vertical borehole system. However, ground source heat pumps are not suitable for all properties as factors, such as the space available in your garden or outdoor area, can have a major bearing on whether you will be able to have a ground source heat pump. If you convert that into tons, that's a 6.25-ton heat pump. The heat pump is suited for between 250 and 450 square feet. HVAC systems are also an option if youre looking for a system which handles heating, ventilation and air conditioning. Heat is conducted from the earth with the heat extracted via a heat exchanger with the extracted heat pumped into the heating system of your home through a series of pipes. They use more heat energy than electrical energy. This cookie is set by GDPR Cookie Consent plugin. Nonetheless, you can find that many different systems and technologies can be combined. I have over 25 years of industry experience and now I spend my time sharing my knowledge online with the hope of educating Britain towards a more sustainable future. The easiest way to install a heat pump is on a wall. A 12,000 BTU (1 ton) air source heat pump typically uses 3.5 kWh of electricity to warm a 400 sq ft (37.16 sq m) space for an hour. A vertical loop on the other hand, usually needs to be dug to a minimum of 60 metres but will often be up to 100 metres or more. Most heat pumps will need 3 x ground loops at 200 m in length that are spread out independently over an area. . The cost of an electric space heater can vary greatly depending on the features and size of the unit. Unlike a ground source heat pump, air source heat pumps can be installed with relatively little sacrifice to space inside or outside your property. Only 1/4 units of electrical energy are used to create an output of 4 units of heat energy the other 3/4 units of heat coming from the ground. The location of the heat pump needs to allow for a good flow of air through it. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. As the process continues, the water continues to heat until enough temperature is delivered to the water to make it suitable to heat your home, use for showers and baths and for day to day activities like washing up and cleaning. Generally, the average life-span of units built in the 1970s and 1980s is about 15 years, but individual units may vary and last much longer depending on use and how well they are maintained.An ARI survey showed average heat pump life to be about 14 years when recommended maintenance procedures were followed. The transfer of heat goes to your central heating, for use in radiators, hot water, underfloor heating, and so on. These cookies track visitors across websites and collect information to provide customized ads. External space: 700m squared for ground arrays. Air source heat pumps extract heat from air outside your property and use this to heat water inside your home. These cookies ensure basic functionalities and security features of the website, anonymously. So, how do ground source heat pumps work, what are options, and what are the space requirements for them? Solar thermal heating is possible but will most likely not be sufficient to combine and ultimately you are better off using other sources. There is a shift in the modern world to using alternative heating sources that are more environmentally friendly and which dont use a limited fuel source, such as gas. You'll need a louvered door (instead of a solid door), in order to circulate warmer air to the HPWH, and you'll need to duct the cool "exhaust" air from the HPWH to a larger room in the basement or first floor. A slinky arrangement can save space, as can drilling vertical boreholes instead of horizontal trenches. Split heat pumps will typically have relatively smaller outdoor units . What Is The Best Renewable Heating System? Smaller, basic models typically cost anywhere between $20 to $100 while larger, more advanced models can cost anywhere from $150 to $500 or more. How deep do you need to dig for a ground source heat pump? A recommended alternative to radiator upgrades can be underfloor heating but this can add additional cost and time to your project and may not be suitable unless you are looking to fully renovate your home. Simply put, ground source heat pumps extract heat from the ground through the use of a ground loop of water pipes underground. I'm Clive, a sustainability advocate and green energy expert. How Can An Integrated Heating System Benefit You? Tuesday, April 21, 2020. This cookie is set by GDPR Cookie Consent plugin. 4. As with any duct run, keep it short, smooth and fat. If you are thinking of taking the next steps towards renewable heating, then its worth considering the below aspects to ensure that a heat pump will be worth it for you: Whether you opt for a ground source heat pump or air source heat pump, you will be making a positive switch, and youll be asking yourself why you didnt make the switch sooner. Does every room of the house need a ductless unit? What you need is a good heat loss calculation. The cookie is used to store the user consent for the cookies in the category "Performance". But we are here to help. For a 4 - 5 bed house with an output requirement of 12 - 16kw, the average dimensions of an . Vertical boreholes are another option, but as previously mentioned they can be expensive because of the time intensive drilling process and specialist equipment required. Efficiency and performance deteriorate if airflow is much less than 350 cfm per ton. Air source heat pumps can also replace a boiler for domestic hot water purposes where a sufficiently sized hot water tank can be installed. The heat pump systems need 24 to 24 inches around their sides at all times. The ground source heat pump, which runs using electricity, circulates a solution of water and antifreeze around the ground loops and this absorbs the naturally occurring heat. How much area can a heat pump cover? ago. For a horizontal collector you will need to install pipes 1m apart and 1.2m deep in the ground. 700 square metres is around the size of 2.5 tennis courts. This means, with UK gardens averaging 12m squared, a horizontal ground source heat pump wont be a viable option for most UK homes. An air source heat pump unit is sited outside the house and you need a controller and possibly two cylinders inside. (RHI) Everything you Need to Know, KWB Easyfire domestic biomass install in Hindhead, Surrey. Running costs Future energy prices are unpredictable, so it's hard to put a . Deeper ground loops can bring about a more efficient collection of heat and have a more reliable or stable source of heat. When the temperature differential between outdoors and indoors is lowest, heat pumps are more efficient. If you are going to be using it then you will want to know exactly what you are working with. The temperature you want inside your building also affects how much energy the heat pump uses. External space: 3.5m squared for the external heat pump unit Internal space: 13.6m squared for internal heat pump components, water cylinders and large radiators or HVAC systems to distribute heat around your home. Type The. Depending on the size of your property and the heat load it requires will affect how many trenches you require. You can get in touch with A Greener Alternative by using our Contact Form, by emailing us at info@agreeneralternative.co.uk, or by calling us on 01273 455695. A ground source heat pump can deliver up to 4 kilowatts of heat for every watt of electricity it uses. On average, a homeowner can expect total expenses to reach between $18,000 to $30,000 on geothermal heating and cooling cost. A machine that can effictly heat or cool is bigger. It's essential to work with an experienced HVAC professional when sizing a heat pump, so you don't spend more than you need. Where is the best place to put a heat pump? There could also be a further cylinder . Dont cover your heat pump during the winter. The higher the temperature you want, the more the heat pump has to work. As a lot of homes will likely need two or three, with separation between each of them, it is advised that you have around 700-800 square metres to work with. Approximately 1 borehole is needed per 6kw, meaning 1 borehole for a small residential home is normally enough. It is possible to hide a heat pump if you have proper clearances around it. A Guide to Biomass Boilers. You will need around 700 square metres of space for a horizontal ground source heat pump to be installed. The number of boreholes you will need depends on the required heat load for your property (usually the larger the home the more boreholes are needed) and also the type of ground your property is sitting on. The outdoor unit needs to be at least 24 inches away from anything that might block the air flow. A good solar water heating system can save up to 1600 units of electricity annually. The configuration of parts and how they integrate with the house exterior and interior are the same, even if it is possible to change the direction it operates. Depending on the size and BTUs of your heat pump, it will use between 800 watts (0,800 kWh) to 5,100 watts (5,100 kWh) of electrical power per hour. This means boreholes will need to be drilled into the external area where you are installing your loop array. The electricity consumption of an air source heat pump can also depend on factors such as size, operating hours, dormant phases, defrost cycles, outdoor and indoor temperatures, and how efficient the heat pump is. The holes will need to be 100m deep, which means sewers, gas pipes and other obstacles can slow progress or make excavation impossible. Most heat pumps will need 3 x ground loops at 200 m in length that are spread out independently over an area. A two-ton heat pump will cost between $2,500 and $5,000 while a 5-ton unit can cost from $6,000 to nearly $10,000. With other types of systems, a separate air conditioner and boiler would be needed. Not all properties are able to accommodate ground source heat pumps because of limited outdoor space. Heat Pump Size (2,500 sq ft) = 2,500 sq ft * 30 BTU per sq ft = 75,000 BTU. We will cover some of the most commonly asked questions surrounding heat pumps, along with some of their biggest misconceptions, hopefully clearing up any questions or concerns you may have. Horizontal loop systems are the more cost-effective system as they involve the excavation of shallow trenches in which pipes can be laid. There are a number of factors that will affect this. This means that if a room is 300 square feet, you would need an electric heater of at least 3000 watts (10 Watts X 300 Sq Ft). The space requirement for installing the ground loop is about 700-800 square metres. As an Amazon Associate I earn from qualifying purchases.Privacy Policy | Affiliate Disclosure. Heat pump and installation Buying and installing a ground source heat pump can cost 20,000-35,000, so after the grant it's still 14,000-29,000. Maintenance Budget around 250 a year for servicing a heat pump . Air source heat pumps can be noisy, although its not usually intrusive. A geothermal heat pump uses electricity for its compressor, fan, and circulation pumps. The heat pump will be working more over the summer, allowing your boiler to rest and save you money so that it is only used most in the winter months when it is needed. Renewable heating utilises energy sources that are just that, renewable. Most homeowners know that heat pumps help keep homes and other structures comfortably warm on cold winter days. However, some installers recommend that you dont install them on the outside wall of downstairs bedrooms. There are extra factors to think about when working out the amount of land needed, including the number of trees there are and the condition of the ground. You may also need to factor in additional costs such as any. A heat pump needs to pull in the outdoor air through the side vent and exhaust through the top of the unit. You dont need a single indoor unit for every room in the home, but the outdoor unit can be attached to multiple indoor wall-mounted units. For a 2 - 3 bed house with an output requirement of 5 - 9kW the average dimensions of a split heat pump outdoor unit is: 1,000mm wide, 790mm high, and 405mm deep. Here are just some of the things to consider when looking at ground source heat pumps: There is often confusion when it comes to the advantages and disadvantages of air source heat pumps too, leaving people unsure and potentially missing out on the low carbon technology. 11 metres square, but with 100m boreholes if youre installing a vertical heat pump. There are lots to consider when it comes to a ground source heat pump, for example, how deep the system can go in your situation, so it is definitely worthwhile reading up on. Let's see if the Heat Pump Size . Each of these can bring its own benefits and works in a way that does not require a traditional heating system, although they can often be used together for extra energy and heat. Its best to locate the outdoor unit on the warmest side of the wall. Making the switch from your current traditional heating system, or adding a new renewable heating system, is an excellent action to take. Monobloc heat pumps are preferred as long as one has sufficient space outside. Boreholes are usually chosen due to a lack of space or unsuitable ground conditions for horizontal trenches. Your air conditioner's manufacturer may have specific clearance recommendations, but they'll generally recommend between 12 and 24 inches. No big deal. Boreholes are normally drilled down to about 100 metres where the ground is a constant 10-12 degrees. The air return in the house is where the heat pump draws air. Split-system heat pump: This type of heat pump requires about 60 square feet (5.57 square meters) of space. The general rule of thumb is to have at least one foot (or 12 inches) of clearance on each side of your air conditioner. Today's heat pump can reduce your electricity use for heating by approximately 50% compared to electric resistance heating such as furnaces and baseboard heaters. If you need horizontal ground loops, youll need trenches that are between 1 and 2 metres deep. The cookie is used to store the user consent for the cookies in the category "Analytics". How Much Is The Renewable Heat Incentive? Dont put a covering on the unit if youre tempted. There are a few options for renewable heating, the main ones being ground and air source heat pumps, biomass boilers, and solar thermal energy. The most expensive heat pumps are solar powered, but they do not require fuel and will save you money in the long term, so they are great options if you have the budget. External heat pump systems need an average of 18- to 24-inches (up to 2 feet) around their sides at all times. space for pipes to deliver heat into your property, the size of which will vary. If you think you have adequate room for an air source heat pump, approximate the size of a typical heat pump using a tape measure. Systems can be around 1010mm width x 549mm height x 165mm depth but could replace existing air conditioning units. Refrigerant can be used to heat and cool a heat pump. renewable heating systems in Sussex and The South East. A renewable heating system can provide reliable heating, at competitive prices, and with a less negative impact on the environment; there are countless positives when it comes to heat pumps, and the future of these systems is only looking bright. Air source heat pumps arent the largest but do require space to be installed. A vertical system demands enough space for the drilling rig to enter the site which can be difficult in built up areas, but the boreholes are only 20cm wide. 700 square metres is around the size of 2.5 tennis courts. If you would like to find the best renewable heating system for you, then please contact us here at A Greener Alternative and we can help you decide on what the best renewable heating system will be for your requirements. Using both of these sources leads to the efficient and effective heating of your home all year round. Do heat pumps need to be on an outside wall? All Rights Reserved. The size of the outdoor unit will most likely be linked to the required output too. Below is an example: Home size = 1582.sq ft x 2.5 = 3,955 sq ft of land required The trenches are dug with a small excavator, so there has to be enough room for this to enter the site. 400m2 of ground area is required for an 8 kilowatt heat pump. Even though the installation process can seem complicated, the result is a highly efficient, easy-to-use system for controlling the temperature of your property. The heat pump itself requires little space, it is compact and can be placed on the outside walls of your home, making it cheaper and easier to install than a ground source heat pump. Depending on the size of your home and the heat load it takes will affect how many trenches you need. You also have the option to opt-out of these cookies. There is aAn air source heat pump is a popular renewable heating option thanks to its versatility. The best place to install a heat pump is away from the sun. Similar to ground source heat pumps, you will need to ensure you have interior space for both; Because of this lower flow temperature you will need to also install larger radiators to help keep internal temperatures stable and evenly distribute heat throughout your home, even when temperatures drop outside. When the system is up and running after professional installation and you have been shown how to use it, there should not be much to do after it has been fitted. Ground source heat pumps require a decent amount of space, not only for the ground loop that needs to be installed, but also for the large digging equipment that will need access to the property. As an example: Detached New Build Home with 4 Bedrooms House Size = 1582. sq ft x 2.5 = 3,955 sq ft of land required Consider it a water-based space heater. This can be a considerable amount of space for a homeowner to find, but there are some alternative options. In a situation where space is perhaps more limited, ground source heat pumps can be installed vertically using boreholes. The traditional heating systems used in homes around the world is often a mains gas boiler, this uses fossil fuels to heat water and rooms in the home. This will equate to a minimum of 3 boreholes, similar to horizontal ground source heat pumps, for most UK homes. To begin the process of installing a heat pump, specialists will come to your home for a consultation, guiding you on what would work best for the property; this will allow for the most effective installation to occur. How deep does ground source heat pump need to be? Air source heat pumps have a lower flow temperature than a gas boiler, usually around 35 45. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. A more efficient heat pump will use less energy than a less efficient one. The heat can be absorbed and moved from place to place under the right temperature and pressure. (152.4 mm) clearance on 1 side of unit and 12 in. Clearance space at sides of an air conditioner or heat pump compressor/condenser unit for air flow For proper airflow, a 6-in. During the summer, an air source heat pump can also allow for cooling of the house if necessary. This cookie is set by GDPR Cookie Consent plugin. This cost would cover a complete geothermal installation. This allows them to capture cool air from outside extract the temperature from the air and use this to heat water within your property. This makes vertical systems often more efficient as they are not influenced by the changing seasons. How much does the average geothermal system cost? The Department of Energy recommends that 10 watts per square foot is the optimal amount of wattage needed to heat a room. A ground source heat pump works by extracting heat from the ground, the system is installed using boreholes or trenches in a space such as a garden or any land available for your property. You would need about 75,000 BTUs. At A Greener Alternative, we have plenty of experience and knowledge when it comes to heat pumps, having installed countless systems for a range of customers. But what is renewable heating? The cookies is used to store the user consent for the cookies in the category "Necessary". I dont know if I need a Ductless Unit in every room. The minimum distance to the wall is 150mm if placed parallel to it. This involves the pipes being installed deeper into the ground but taking up less surface area than with horizontal ground loops. High-efficiency heat pumps also dehumidify better than standard central air conditioners, resulting in less energy usage and more cooling comfort in summer months. Simply put, the integrated heating system will be a hybrid of the traditional and greener systems and will switch between them, choosing the appropriate and most efficient source of heating. You may need to re- install the heat pump. What is the Renewable Heat Incentive? It will try to meet your needs if it is too small. An air source heat pump can replace the need for a boiler for space heating purposes with the right internal heating setup. Below is an example: Detached new build property with four bedrooms Home size = 1582.sq ft x 2.5 = 3,955 sq ft of land required There are plenty of benefits when it comes to using a renewable heating system, and there are a range of valid options that you can have installed; whether this be alongside your existing heating source, to create an integrated heating system, or as your sole, standalone heating source. at least 1.5 metres of unobstructed space in front of the heat pump fans to prevent air flow away from the heat pump being obstructed to prevent cold air from being recirculated through the heat pump. Its common for people to think that you need an air handler in every room, but its not the case. On average the surface area of land required is roughly 2.5 times the square meterage of the property. These will hold about 200 metres of pipe which run 100 metres away from the property and 100 metres back. The transfer of heat goes to your central heating, for use in radiators, hot water, underfloor heating, and so on. The transfer of heat goes to your central heating, for use in radiators, hot water, underfloor heating, and so on. jorisepe 20 hr. If you dont cover the heat pump, it might not work as it should. People are often left asking things like are air source heat pumps noisy and are ground source heat pumps worth it, and unfortunately it can be difficult to find the answers. Copyright 2023 heatpumphouse.com | Powered by S/N. Heat pumps typically cost between $2,000 and $10,000, depending on the type that you purchase and how much work is involved in the installation. How far should a heat pump be from a wall? But opting out of some of these cookies may affect your browsing experience. The side of or behind the home is where the condenser needs to be installed, away from any shrubbery or vegetation that could interfere with the flow of air. The heat pump should be more efficient in cold-climate regions if the temperature on the fins/coil and any other heat exchange surface can be raised 4050F above ambient. Like air source heat pumps, ground source heat pumps have a lower flow temperature than a gas boiler, usually around 50 55, although some claim to heat water up to 65C. It takes around two days to drill 1 borehole. However, you must remember that each hole will need to be 100 m deep, so will need to be drilled far away from the foundations of your property. The cheapest types of air ducts available are spiral duct fittings, theyre usually between 80 1600mm in diameter and made from galvanised steel, aluminium or stainless steel. For a heat pump to work for both, the valve simply needs to be reversed to change the direction of the circulating fluid. Tim Knauss/Syracuse.com. The fan unit, which is often around 1200mm tall, 1000mm wide and around 400mm deep, will be connected to at least one hot water cylinder which is around 600mm wide by around 1600mm tall. Analytical cookies are used to understand how visitors interact with the website. space for pipes to deliver heat into your property, the size of which will vary. Make sure there are no weak tree limbs that can fall and cause damage to your unit by looking above it. The ground loops will be laid out in reasonably shallow trenches that have been dug into the space available, this will then be filled back in properly, leaving the land in its correct state. Internal space: 13.6m squared for internal heat pump components, water cylinders and large radiators around your home. If you continue to use this site we will assume that you are happy with it. These requirements mean that, theoretically, you could install a vertical ground source heat pump in a UK garden, with only around 11 square metres of garden needed to evenly space the boreholes. Your heat pump system draws outside air across the exterior condenser coil and expels it out the top of the unit during operation. 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