Borehole heat pumps: Everything you need to know

Each household requires a constant supply of heating and cooling based on climate. Heat pump systems or Ground source heat pumps are one of the most common ways of pumping heat for both home and industrial use.

As the name suggests, these are the pumps that are meant to extract heat to the ground surface. The best heat pumps have the ability to supply an entire house with sufficient hot water and efficient HVAC in a much better way if compared to other traditional methods.

What is a Ground Source heat pump system?

A ground Source Heat Pump also known as a geothermal heat pump is a central system of heating and cooling that is meant to transfer heat to and from the earth.

Heat pumps for boreholes are vertical ground collectors or arrays that are being used to collect heat energy to and from ground source.

These heat pumps are not only efficient but also effective. Borehole pumps normally require a smaller amount of garden space to be installed and nothing more. However, the depth of the borehole for the heat pump can vary according to the size of your heat pump.

In other words, a geothermal heat pump uses the earth temperature as a heat source in winters without any intermittency. This system takes advantage from the ground’s moderate temperature to reduce operational costs and boost efficiency of your heating and cooling system.

Ground source heat pumps are more efficient

Ground source heat pumps extract heat energy from the temperatures of underground, they are more stable as compared to air temperatures throughout the year. This is because of the thermal inertia, ground temperature is warmer than the air above in winters, it is cooler than the air above during summers.

In other words, these can offer you the best cooling and heating system very efficiently compared to electric or air heat pumps.

How do the borehole heat pumps systems work?

The temperature in the earth below 20 ft is approx. equal to the average annual air temperature (MAAT) locally. However, the temperature below the  20 ft. of the surface of earth maintains a constant temperature that is nearly average MAAT. In many areas the temperature ranges from 50-60 °F or 10-16 °C.

Just like a refrigerator or an AC, these systems are based on heat pumps to transfer heat from the ground. These heat pumps can sufficiently and efficiently transfer heat from cool spaces to warm spaces, against a natural flow direction.

The major component of a heat pump is a refrigerant loop pumped via a vapor compression refrigeration cycle that can move heat. The Ground Source Heat Pumps transfer heat to the ground for cooling in summers and extract ground heat for heating in winters.

However, on the basis of climate, the Ground source heat pumps can be designed for one of the above-mentioned modes only.

How to create the heat pump systems?

Here are the steps of creating borehole for heat pump systems:

1. The very first step is to drill a hole deep in the ground. However, the diameter and length of the borehole is based on the pump you want to install.
2. Pipework will then be inserted in the borehole.
3. Once the borehole is finished, a specific borehole pump will be installed in the well, this pump will supply the heat pump ( usually installed in the building we need to heat)
4. The last step is to connect the heat pump with the pipe-loop to start an efficient HVAC system for your property.

Get the best solution

As you can see, all calculation need to be carried out by expert technician, since there are many factors involved in selecting the correct pump for the application. However, this is still a very interesting system efficient, effective and environmental friendly.

At Peel Pumps we are supplying borehole pumps that are generally meant to be used in open loop ground source heat pump systems, to run the heat pump effectively.

Borehole pump from Peel Pumps can work for you

Our borehole pumps have been developed appositively to work for extended hours in the best possible way. We have specific pumps for this application, they are meant to last for more than 30,000 hours.

An heat pump is designed to work throughout the year for an average of 12 to 18 hours a day. The heat pump has to be extremely efficient and strong but also the “supply” borehole pump in the well has to guarantee special performances.

Our Special borehole pump features a  2 wire motor internally protected, this make the installation very simple. Our borehole pump can be connected with a heat pump directly without any extra external devices or control box.

Even more, the special hydraulic with 30% fiberglass and Noryl impeller, guaranteed an outstanding working performance also when there is sand or manganese in the water.

Why are our borehole heat pumps preferable?

Here are some reasons that make borehole heat pumps recommended for this application:

Efficient

Our heat pumps motors are very efficient and run at lower temperature compared to other borehole pump motors.

High coefficient of performance

Great performances are obtained by the special design of the impellers with floating ring. Especially in condition of sand in the borehole, our pumps keep an high coefficient of performance for longer.

Cost-effective

Setup costs of heat pump systems are a bit higher as compared to conventional systems. However, the efficient HVAC systems based on Peel Pumps’ borehole pump can let you save much more from energy bills in a very short period. Low cost of maintenance and an average life of components of over 10 years, make this solution even more cost effective.