Suppliers of: passive stack ventilation natural ventilation solar powered air conditioning natural lighting light pipes possitive pressure ventilation sunpipes or sunpipe natural daylight pipes natural passive ventilation

Since its inception, Monodraught Ltd has always sought to invent, explore and develop innovative concepts.
By maximising natural available energy from the wind and the sun, Monodraught products helps their users reduce their energy consumption, costs, and carbon footprint.
Key products include the WINDCATCHER® natural ventilation systems that provides a controlled quantity of fresh air into a room from roof level, whatever the wind’s direction, and without mechanical assistance; the SOLA-BOOST® solar assisted natural ventilation systems that uses the WINDCATCHER technology in coordination with a solar powered fan to guarantee additional ventilation on sunny days; and the SUNPIPE® natural daylight systems that delivers daylight to areas that windows cannot reach.

SUNPIPE natural daylight systems:

The Monodraught SUNPIPE directs sunlight into a room from roof level. Here, the SUNPIPE collects daylight using a patented Diamond dome, then it uses a silverised mirror-finished aluminium tube to transfer the light to a room, and finally a ceiling diffuser evenly distributes the light around the room. The Diamond dome and diffuser also seal the SUNPIPE from the ingress of rain, dust, and insects.

The SUNPIPE is effective in sunny, overcast, and rainy conditions, requires no maintenance, and is compatible with many building designs. For example, multi-floor solutions are possible and common, but some loss of transmittance will occur.

When compared against a roof light, a SUNPIPE eliminates glare, significantly reduces heat gains in the summer, and minimises heat losses in the winter. The SUNPIPE is manufactured in a wide range of diameters and Monodraught can provide a full design and installation service.

WINDCATCHER natural ventilation systems:

The Monodraught WINDCATCHER natural ventilation system channels a controlled quantity of fresh air into a room from roof level, whatever the wind’s direction, and without mechanical assistance.

The WINDCATCHER is divided internally into four quadrants so that one or more face into the wind. Here, windward quadrants supply air under that action of positive wind pressure, and leeward quadrants extract stale air under the action of negative wind pressure. On still days, the WINDCATCHER acts as a conventional passive stack using the natural buoyancy of warm internal air to stimulate air flow out of the building. Volume control dampers located at ceiling level vary the rate of ventilation according to the building requirements. In addition, during summer months the dampers open at night to provide night time cooling, which can help to reduce peak internal temperatures.

The Monodraught WINDCATCHER system eliminates the need for air conditioning without compromising the security of the building.

WINDCATCHER X-Air next generation natural ventilation system:

The WINDCATCHER X-Air system is the result of four years intensive research and development, the system bristles with innovation and a number of patented technologies. One of WINDCATCHER X-Air’s defining features includes distinctive styling and patented LED architectural lighting.

The patented corner design not only increases performance but it also allows excess wind to bypass the system, reducing loading on the unit in high winds. Another innovation includes ACTIVLOUVRE® modulating aerofoil louvre technology featuring specially designed aerofoil blades that minimises resistance and maximises airflow combined with an internal system which provides significantly smoother internal airflow.

SOLA-BOOST solar assisted natural ventilation systems:

The SOLA-BOOST® is an extension of the proven WINDCATCHER design, providing additional ventilation on sunny days whilst maintaining zero running costs. With the ever increasing threat of global warming and rising energy prices, the application of an increased range of successful energy free natural ventilation strategies has become even more urgent and important.

The SOLA-BOOST includes the addition of a solar driven internal fan that increases the airflow up to 260l/s. Conversely the fan operation can be set up to extract stale air. All this without any energy cost. A unique feature of the system is the patented PowerTrack™ control system. This system works on the basis that the brighter the sun, the greater the speed of the boost fan. The unique switching results in 2½ times more power from the solar panel than can otherwise be achieved by a direct connection.

COOL-PHASE passive ventilation systems :

The COOL-PHASE® passive ventilation system is a low energy, intelligent, passive cooling and heat recovery system for use within Commercial, Academic and Health Care environments. The COOL-PHASE system was developed in collaboration with The University of Nottingham, BASF Ltd, and the Carbon Trust, and is Monodraught’s answer to a mechanical air-conditioning system.

COOL-PHASE provides powered fresh air ventilation, but can store and discharge large amounts of latent thermal energy by utilising a micro-encapsulated phase change material (PCM) slurry. The PCM can store up to 4kWh of thermal energy, and supply approximately 1kW of cooling. Incoming air is passed over a series of precision engineered spiral wound heat exchangers, through which the PCM is pumped. A significant difference between the temperature of the air before and after heat exchange can be achieved, using a fraction of the power required to run a conventional air conditioning system.

SOLA-VENT natural daylight and solar powered extract ventilation system:

The Monodraught SOLA-VENT® natural daylight and solar powered extract ventilation system is a fully integrated bathroom light/ventilation kit, incorporating the Sunpipe, two compact halogen downlighters and a solar powered extract fan – all in one unit! The Sola-vent is available in two attractive, modern designs and is the ideal solution for bathrooms and shower rooms where ventilation is essential.

ABS Systems:

Whereas the Monodraught WINDCATCHER and SUNCATCHER natural ventilation systems are aimed at larger scale applications for commerce and industry, it is recognised that there is an increasing demand for smaller low cost installations in Homes, Shops, Offices, Doctors’ Surgeries, etc. ABS systems are ideal to provide natural light and ventilation to bathrooms, kitchens, toilets etc.

HEAT HARVESTER:

The Heat Harvester, is designed for winter use and is aimed to cut energy bills and heating bills by up to 50%! All buildings that have a high floor to ceiling of 5m or more suffer the same fate in that much of the heat that is produced at ground floor level rises up to ceiling level, with the result that the temperature at ceiling level can often be 4°C – 5°C higher than at floor level but all this high level heat is totally wasted!
The patented Heat Harvester is designed like a mini jet engine and sucks in hot air from above, when suspended just below ceiling level and blasts that hot air back down to floor level, which can be a distance of 10m − 15m. The remarkable thing is that it does this all with a 35W motor, which costs less than 10p per 24 hour day to run.

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