From a small wall fan to large ducted fresh-air handling units — ventilation designed to suit any need.
Heat recovery ventilation transfers heat from the air being extracted from a building to the incoming fresh air, so the building loses less energy. It can recover up to approximately 50% of the energy in the extract airstream. Plate heat exchangers are the most common type and keep the two airstreams separate.
Opening a window does provide ventilation, but it wastes energy — in winter, heat and humidity are lost; in summer, cooled air is replaced by warm air from outside. The result is undesirable for both indoor climate and energy efficiency, forcing HVAC systems to work overtime to compensate.
Cool Stream Ventilation can design a ventilation system to suit any need, from a small fan in the wall to large ducted fresh air handling units used alongside air conditioning to keep you at the right temperature while keeping your environment fresh.
Target ventilation systems provide a cooling effect by directing tempered fresh air to areas that operatives occupy frequently, offering temporary respite from uncomfortable surrounding areas. Natural ventilation systems take advantage of convection currents created by air at different temperatures, widely used for office building atria — though for commercial and industrial applications, natural ventilation is extremely limited, as mechanical assistance is usually required to move air through ducted systems. It's important that any extract system is balanced by an input or make-up air system to maintain the displaced extract air.
Heat pumps and heat recovery ventilation systems provide more environmentally friendly ways of controlling air temperature indoors — vital for new large buildings, office blocks, shops and restaurants requiring healthy air quality.
Extract energy recoverable via heat recovery
Heat exchanger — the most common heat recovery type
Coil systems used where input/extract are remote
Cross-contamination between air streams
Heat recovery enables a system to recover up to approximately 50% of the energy from the extract airstream of a ventilation system. As environmental issues become increasingly influential in mechanical ventilation design, a heat recovery facility can contribute to considerable energy savings and reduced carbon emissions. The most common type used is the plate heat exchanger, transferring energy from one air stream to another with no cross-contamination; where input and extract systems are remote from each other, a run-around coil system can overcome practical installation issues.
A noticeably fresher, more comfortable space.
Oxygen levels increased, CO2 levels reduced with fresh air.
Fumes, smoke, odours and dusts are controlled.
Input air balances extract for a stable system.
Opening a window wastes energy: in winter heat and humidity are lost, and in summer cooled air is replaced with warm air from outside, so HVAC systems work overtime.
Heat recovery enables a system to recover up to approximately 50% of the energy from the extract airstream, contributing to energy savings and lower carbon emissions.
An extract ventilation system should be balanced by an input or make-up air system to replace the displaced extract air.
Yes. From a small fan in the wall to large ducted fresh air handling units used alongside air conditioning.
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