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Air Conditioning


Air conditioning is not a luxury. The benefits of a well-designed system can be seen very quickly in a more productive workforce and, in retail applications, more positive customers.

We design air conditioning systems for a wide range of premises and applications. We have installed systems in shops, offices, factories and restaurants and specialise in unique installations where a custom designed installation allows for 'spot' cooling in large factories where in would be uneconomic to cool a large area.

If you are considering installing or upgrading, or require maintenance of an existing system, call us to arrange a free, no obligation quotation.



These systems use the air to carry the energy from inside to outside and vice versa. This system uses Air Handling Units or Roof Top Packages to condition the air, filter it and send it through ductwork to the occupied space where the conditioned air will heat or cool the space required.

Air Handling Units contain a cooling coil (connected to a chiller or condensing unit) and a heating coil (connected to boilers or electric heaters), filters and circulating fans. Roof Top Packages contain refrigerant cooling cycle, heating coils, filters and circulating fans.



These systems are most commonly used in offices, shops, restaurants, residential, training rooms etc. These systems use refrigerant gas to carry the energy from outside to inside or vice versa. They comprise of an outdoor condensing unit and indoor fan coil unit.

The case of cooling the outdoor condensing unit cools the refrigerant and sends it through a small bore pipe to the indoor fan coil unit (ceiling cassette, wall mounted unit, ducted unit, multi-split unit etc) where it will expand to lower the temperature of the refrigerant in the pipe, hence when the air in the room is circulated over the coil will lose its unwanted heat and humidity. Heating is achieved by the outdoor condensing unit reversing the cycle.

These systems are most commonly used in offices, shops, restaurants, residential, training rooms etc



There are different solutions available to the problem of heating an area. Offices and shops require a different approach to that needed for a factory or warehouse.

On these pages we illustrate some of the solutions, but please feel free to contact us for your specific situation.


Heat pump air conditioning is an option for heating offices with the added benefit of having summer cooling from the same unit (see Air Conditioning for further information).

Garage Workshops

Radiant heating or warm air depending on particular environment – workshops having doors open regularly or with high air change rate would benefit from radiant tube heating.

Sports Halls

The requirements of most sports halls dictate that radiant tube, U tubes, single linear, double linear or Nor-Ray-Vac; with ball guards are particularly effective.

Retail Stores

Radiant or warm air heating may be suitable depending upon individual requirements, air change rate in building and insulation properties of building.

If you are considering installing or upgrading, or require maintenance of an existing system, call us to arrange a free, no obligation quotation.



Warm air systems are generally available in two categories, cabinet heaters which sit on the floor and unit heaters which are mounted in the air. Both types of appliance can be Natural Gas, LPG or Oil Fired and are available in a wide range of outputs. There are various product ranges within the two categories, i.e. room sealed units, fuel economy units, vertical cabinets, horizontal cabinets, to name a few, each having their own particular application all of which warm the premises by blowing warm air around either free blowing or through ductwork.

Warm air units generally have a very simple method of operation, they work only when either the time switch or frost thermostat is on. When either of these conditions is satisfied and the room thermostat is calling for heat the operational sequence will commence. When the flame is established and the heat exchanger has reached the required temperature the main fan unit will switch on blowing the heated air either through free blowing heads or into ductwork. The heater will continue to operate until either the room thermostat time switch or frost thermostat switches to the off position, at which point the burner will shut down, the heater will commence another cycle when the control devices again call for heat output.



DE stratification systems utilise the fact that warm air rises. In large or tall warehouses and commercial spaces, this means that the warmest place is usually just below the roof or ceiling, where the benefit is lost to those below.

Thus, DE stratification fans (and modern roof mounted warm air heaters now incorporate a DE stratification function) 'blow' that warm air down to ground level to produce more efficient heating.



Radiant heating is available in different forms, 'U' tube, single linear tubes, double linear tubes, continuous tube systems (Nor-Ray-Vac) etc., in a wide range of outputs, each to suit particular applications.

The radiant heater warms all solid objects and surfaces in its path. They are mounted overhead and produce infra-red radiant heat that is directed downward by a reflector. The infra-red heat passes through the air without heating it and falls on people, floors and equipment below creating a comfortable all-round radiant warmth at low level without having to heat the whole volume of the building or roof space.

Radiant heating is particularly efficient reducing running costs, it provides rapid heating up times, systems can easily be zone controlled. They are particularly effective in garage workshops, factories, sports halls, aircraft hangers etc.