LiverpoolECHOTV asked:

Peter Searancke asked:


Ground Source Heat Pumps

The primary difference between a ground source heat pump and a conventional boiler is that a conventional boiler is usually designed to heat the property between certain hours. It achieves this by outputting an enormous amount of heat over a short space in time. The property heats up, the boiler switches off and the house goes cold again.

A ground source heat pump works differently to this. The ground source heat pump does not like producing very hot water. A conventional boiler might output water to your radiators at a temperature in excess of 70 degrees C. A heat pump can achieve this but it would be inefficient in doing so.

Therefore the style of heating needs to be changed to accommodate lower temperature heat output.

In general this means using underfloor heating (running at a low temperature, perhaps 38 degrees C) or radiators that are oversized so that they can run at a lower temperature than normal (perhaps 50-55 degrees C).

When the output temperature of the system is lowered it is vital that this heat is retained as the time taken to heat the whole building will increase.

The key to a good ground source heat pump installation is insulation. Great insulation will benefit any home, whatever the type of heat system. However, for a ground source heating system to operate without a back up it is vital.  This will provide the property owner with a very efficient and cost effective heating system.

Air Source Heat Pumps

Air source heat pumps work in a similar way to ground source heat pumps but extract heat from the air outside rather than the ground. They upgrade this heat using a compressor circuit (similar to that found in a fridge).

Typically over a year an air source heat pump could have an efficiency of around 330% when heating a domestic home (including domestic hot water). This means that for every unit of electricity that it uses it generates 3.3 units of heat.

A modern high efficiency gas boiler has an efficiency of around 90%. This massive efficiency advantage means that the system will save you money off your fuel bills.

Comparing the system to a gas boiler you should save around 30%. Given the cost of oil, when replacing an oil boiler the savings can be up to 60%.

This type of heat pump can also be used for heating swimming pools.

Ground Source Heat Pump vs Air Source Heat Pump, which is right for me?

The difference between these systems is that Air Source Heat pumps do not need a ground loop , they extract heat from the air around us. The disadvantage with an air heat pump is that as the ambient temperature outside decreases, the air heat pump becomes less efficient at extracting the heat.

One other fact of central heating systems is that you need them most when the outside temperature is at it’s lowest. This means that air heat pumps are useful for heating properties that don’t have the room or funds for a ground loop or need heat when the ambient temperature is generally higher. This means that air heat pumps along with unglazed solar water panels are very useful for heating swimming pool water.

In summary, if you want to heat your home efficiently with electricity, consider a heat pump. If you have a ground source heat pump you will benefit from good efficiency all year round.

Given that the major consideration between these two technologies is the annual efficiency, it is worth knowing that a ground source system could have an efficiency of around 450% when an air source system would be about 350%.

Harwood E Woodpecker asked:


In this environmentally friendly world that we all live in certain steps have to be taken to ensure that there is still a world for people to inhabit in the future. People all over the world are looking at ways to help save energy and the world’s resources.

Household heating is a major consumer of energy so whatever can be developed to reduce the effect on the environment has got to be a step in the right direction.

By extracting heat from the ground or air (geothermal energy) and then compressing it to raise the temperature significantly, the heat generated can then be used for water or space heating.

Since there is quite a lot of heat energy in even very cold materials, heat pumps can use sources that appear to be very unpromising. For example, if the temperature of the air is 5 degrees C, that might appear to be too cold to extract any heat.

In reality 5 degrees C is pretty hot compared to absolute zero (-273 degrees C) and therefore an air source heat pump can produce useable heat all year round. Think of your deep freeze. Heat continues to be extracted from that area even though it’s well below freezing.

Heat pumps can use air, water and, increasingly commonly, the ground below your feet as a source of energy. Ground water is a particularly useful source of heat since it rarely gets much colder than 7 degrees C.

Unlike more conventional heating or air conditioning, heat pumps minimise pollution and fuel use.

By utilising entirely free and renewable geothermal sources of energy they are very low carbon and very economic to run. During hotter summer months the latest models can even be run in reverse to passively extract heat from inside a home and ‘dump it’ into the ground. This method of cooling is one of the lowest carbon and lowest energy approaches available.

For every unit of electrical power needed to extract the heat, up to six units of heat can be obtained. That’s right, heat pumps can be up to 600 per cent efficient.

It’s like buying a low-energy light bulb with an output rating of I00 watts but with an energy usage of only 20 watts. Remember, we spend very little on electricity for light bulbs in our homes compared to running our heating and hot water systems – so the savings are much greater.

The attraction of running a heating system this efficiently is obvious. It saves money and makes a real contribution towards a low or even zero carbon building and towards reducing the devastating impact of climate change.

It’s worth recalling how, by 2016, every new home in the UK will need to be rated ‘zero carbon’. Given that the law in this area is getting tougher all the time and the 2016 date is now fixed, new business opportunities are growing rapidly.

More and more heat pumps will be installed in the coming years which can only be good news for the environment. Pioneering companies have already gotten to grips with issues around the ground works required and enterprising trades people are discovering how they can become part of the future of our industry.

The next generation of heat pump technology that is even easier to install, and operate further reduces running costs and improves the already impressive efficiency which will make the models of the future even more appealing to the mass market.

These will offer air, water and ground source heat pumps to suit all household heating needs, helping to reduce the cost of heating water for your bath as well as heating the whole house during the colder months.

In addition to being powerful systems in their own right the heat pumps of the future even come ready to connect to a solar heating system, complete with flat-panel collector array and solar cylinder, providing an integration of solar energy and heat pump for domestic hot water and central heating.

Heat pumps will make a huge difference to the way we heat our homes as well as making a big difference, for the better on the environment.

David Karlson asked:



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James Walton asked:


When choosing a heat pump, there are a number of factors to consider. This article should leave you better informed in choosing a heat pump. Location, location, | Where from? location of the games you want a heat pump a crucial factor in choosing which heat pump right for you. The larger your site, the greater the capacity of heat pump you require. If you want to install a heat pump in your bedroom, take particular care to choose the unit can more reserved. If you get a noisy heat pump then you will not sleep too easily due to high noise levels. Mitsubishi Electric's manufacturing heat pumps for extremely quiet. The number of rooms you want to heat or cool also plays a part in the selection of a heat pump. If you want to heat or cool a site, a heat pump mounted on the wall is the best option. For two or more rooms, you can go for a ducted system or two heat pumps wall mounted. The heat pump heat channeled channeled Pumps can be installed in the roof space, or in the crawl space under his house. A number of air grids (or records) are then cut into your floor or ceiling. These vents are then connected to the heat pump to allow air to circulate and be heated or cooled. The wall-mounted heat PumpsThese is usually mounted high up on the wall (heat pump high wall), or the low down as a replacement for gas or electric water heaters old. Heat pumps mounted on the wall are suitable for heating or cooling a site. SizingYou right should get right heat pump size for your site. A heat pump is too small it will run on maximum throttle while struggling to heat or cool place. If a heat pump is large, it can lead to cycles per interval, causing temperature fluctuations. To ensure proper sizing of a heat pump, always consult a professional for a correct sizing and capacity assessment of the heat load. Heat pumps FeaturesModern of heat pump is very energy efficient and profitable operation. They can heat or cool your site to a comfortable level. Other features include a heat pump air filters that trap dust and pollen. Water is removed from the air by dehumidification. This leads to cleaner, healthier air. Most heat pumps also come with an infrared remote controller, and timer functions. This allows you to set the heat pump to turn on automatically intervals when you know you will be outside and when you arrive home. The expert from the installation of air conditioning heat pump can install a heat pump usually mounted on the wall in around 6 to 8 hours. A qualified electrician must make final electrical connections and heat pump must be put into service correctly by a qualified air conditioning expert. Failure to follow strict installation procedures can and will cause damage to a heat pump. Always call the professionals.

Eco property development, also known as green property is new real estate trend. This has come into vogue due to climatic changes. Eco friendly properties utilize ‘green’ construction methods with minimal environmental impact. Many people are looking forward to eco property as it is safe. People, who are interested in buying eco property, can approach eco property dealers. It gives them a chance to advertise eco-property either for sale purpose or buying needs.

Eco friendly property for-sale -friendly properties has been in existence from quite some time. The trend is fast catching up in India of late. Improvements in technology and reduction in costs owning has made it very easy for everyone to afford an eco-friendly property. The eco-friendly homes have numerous benefits. They can help save energy by using solar power, solar hot water heaters, wind power and wind turbines. 

Owing an eco property helps reduce the strain on energy reserves, reduce pollution to a large extent, besides reducing the cost of housing. It is a known fact that energy resources are becoming scarce day by day. Whether a house has a solar hot water heater or a ground source heat pump, it can affect a properties value and selling potential. Eco friendly homes stand to yield greater results in the long run. 

 

You can easily get eco-friendly building materials, lime plaster, straw bale, cob, hemp, eco-friendly wood products like, FSC timber, bamboo etc. As the products being used are natural, the house will be completely free of any kind of harmful gases. Moreover, it will help save a substantial amount of money too. The demand fro eco property has stemmed out of the need to meet high standards of energy efficiency and environmental responsibility. The prime focus is on resources such as energy, water and materials.

Going in for eco property can help reduce the energy bills and offer a healthier living environment. It also plays a significant role in reducing the effect of environmental hazards and ease its effects on human health and environment too. Non usage of toxic materials and products will also improve indoor air quality, and reduce the rate of asthma, allergy and sick building syndrome. These materials are known to be emission-free. Bangalore has become the prime destination for many. The city attracts a huge number of people due to the job opportunities. Building in Bangalore costs a significant amount of money. However, approaching property dealers can help reduce the expenses related to property.



By: Sadhana Dhanyal

About the Author:

Sadhana Dhanyal asked:



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Martin Applebaum asked:


& lt; br/& WP; You seek à to buy a pump à heat réchauffer or to cool your house? If so, which is the principal function of this unité will be utilisé? & lt; strong& WP; Efficacité of pump à heat & lt; /strong& WP; notations are différentes for each season. The notations always do not correspond, therefore if your pump has a rate SEER élevé, that does not mean qu& #39; it will have an index élevé CPSC. & lt; br/& WP; By conséquent, it is important of hiérarchiser your needs exact for this périphérique. If you live in a hot région who ask for d&amp more; #39; use of l& #39; unité of cooling then the output of pump à heat owes être plus élevé for rate SEER. If you live in a cold région, who ask for more heating then to seek a unité with a rating supA©rior CPSC. & lt; br/& WP; Each unité of heating and cooling must have a dimension d& #39; efficacité énergétique. It makes it possible to people to know how this modèle particular compares à d& #39; others modèles and compares the low and high dimensions différents efficacité. & lt; br/& WP; Now you probably wonder what these two réelles notes average. Dimension SEER is l& #39; efficacité saisonnière of classification and that CPSC is the season of heating Performance Rating. Each apparatus is in-depth testé for déterminer the exact dimension. & lt; br/& WP; Pumps à heat are utilisées for the heating and cooling. These devices of déplacer heat between l& #39; extA©rior and l& #39; intA©rior of the house. They do not créent all réellement l& #39; hot air or cold. & lt; br/& WP; We can better explain that while déclarant than, during l& #39; winter, a pump à heat déplace of the heat of l& #39; extA©rior in the house. In été, they déplacent the heat of l& #39; intA©rior towards l& #39; extA©rior. Usually, these apparatuses function à l& #39; électricité, but certain gases plutôt that streaming. & lt; br/& WP; L& #39; efficacité of pumps à heat also a factor d& #39; économies d& #39; énergie, these unités can provide. In certain cases, you can économiser jusqu& #39; à fifty percent of your coÔ ts of heating. & lt; br/& WP; If l& #39; efficacité of your pump à heat is élevé, you could économiser even more d& #39; money on your coÔ ts d& #39; énergie. A pump à heat à high output, one will need less d& #39; électricité to heat or cool your house, therefore they are much more effective. & lt; br/& WP; However, these apparatuses are très teux coÔ. Thus, you owe être sÔ R that c& #39; is what you want in the measurement of the heating and of cooling of your hearth is concerné. To see as a consumer of many criticisms that possible to have good a idée of which unités are available on the marché and oà ¹ people are satisfied with those and those which do not reçoivent good criticisms. & lt; br/& WP;