air source heat pump

Who are CS Heat Pumps?


We are part of the Cool Solution Group, specialising in the design, installation, maintenance and repair of commercial, industrial refrigeration, air conditioning and sustainable technologies. At CS Heat Pumps we help both domestic and commercial clients find effective, sustainable ways to heat their properties. Our specific expertise lies in air source heat pumps and mechanical ventilation heat recovery.


Will I need planning permission for an air source heat pump?

No, although the installation must comply with the MCS planning standard. It also needs to be less than 0.6 cubic metres in size, used solely for heating purposes and more than 1 metre from a boundary.


Do they need to be left on all the time? If so, are they noisy?

An air source heat pump will deliver heat at lower temperatures over long periods. More so than conventional boilers. In the winter they may need to be left on all day and night to heat your home more efficiently, but the control system will do this automatically. Our heat pumps are installed outside of buildings. Air source heat pump noise levels are below those recommended by MCS; only slightly more than a large fridge freezer.


Can any property have an air source heat pump?

New builds are perfectly suited to one but, with reasonable levels of thermal insulation, most existing properties are also suitable. They work particularly well with oil, LPG, coal or electric storage heaters. For maximum efficiency it’s advisable to have cavity wall installation, loft insulation and double glazing installed. The survey and specification will take this into account, ensuring that the heat pump meets the maximum heat demand of the property under the coldest conditions.


Can air source heat pumps be installed with my existing radiators?

Additional or larger radiators may need to be fitted but, in many cases, existing radiators sized for 65–70°c water can be used with a lower water temperature, especially if the property has double glazing, loft and cavity wall insulation.


Will an air source heat pump work with microbore pipework?

As long as a good flow rate is maintained, a solution can be found.  Get in touch with us to find out more.


Is a buffer tank needed?

Our air source heat pumps have an inverter driven compressor, this means the system will accurately match the heating load by ramping up or down in small steps as required. Because of this, a buffer tank is not necessary as the system’s defrost period is 3-5 minutes, which may happen up to twice an hour on particularly cold and humid days. During these defrost periods the indoor temperature won’t drop below the required level.


What’s the lowest outside temperature they can work at?

Even when temperatures drop below zero there is enough energy in the air for an air source heat pump to operate. Some models can still work in temperatures as low as -25ºC.

Our heat pumps are designed to operate at maximum efficiency any time of year, automatically regulating the system so that it never uses more energy than needed.


What is ‘Weather Compensation’?

Weather Compensation measures outside conditions and automatically adjusts the heated water to as low a temperature as possible so that the heat pump is working at maximum efficiency.


How long will a heat pump last?

Most manufacturers state 15 years. This will vary depending on where they have been installed and how open to the elements they are, but you can expect them to last as long as a gas boiler.


Are they easy to service and maintain?

Once they’ve been fitted you can pretty much forget about it. A minimal amount of maintenance is required since there are no burners or flues and the refrigeration gases and compressor are in a sealed unit.


Can you use air source heat pumps with other technologies?

So long as the control systems are suitable, they can be operated to work as a lead or support system for any other fossil or renewable heating technology. You’ll need to highlight this in the survey and specification especially if solar thermal is installed. Combined with solar PV panels, an air source heat pump can make an ideal way to produce cheap electricity to heat your home.


How environmentally friendly are Air Source Heat Pumps?

Very, once installed you could average a saving of six tonnes of carbon dioxide a year!


You can find out more about how a heat pump works here.

Or visit the Energy Saving Trust website.