Roof fans are designed to extract air from buildings. They are especially useful in summer when extracting relatively warm air from under the roof will pull cooler fresh air into the building through other openings in the building.
Vertical roof fans discharge air vertically from the fan, whilst horizontal roof fans, typically using a centrifugal impeller, discharge the air radially. With horizontal roof fans, weatherproofing is easy because they have a cowl cover over the fan and roof opening. Vertical roof fans do have internal covers to protect from rain, and the air discharge is directed around the edge of the cover.
There are numerous configurations and sizes available in the Puravent roof fan range as well as accessories including, attenuators, roof curbs, flashings, and controls. They are suitable for connecting to exhaust-air ventilation systems, typical applications for roof fans include offices, schools and other working environments that require cool and comfortable temperatures.
Puravent supplies an extensive range of roof fans from leading manufacturers Mark and Systemair, with direct driven and thermo roof fan options available. If you require any assistance, please call us on 01729 924108 to discuss your requirements.
Average The Room Is A Normal Residential Room, Office, Reception Area Or Similar, Where There Is Not Overly Crowded With People, Computer And Office Equipment.
Above Average There Are Factors That Contribute To Additional Heat Being Generated In The Room E.G. Strong Lighting, Overcrowding With People And Office Equipment, Conservatory Type Room, Or Flat Roofed Room.
High There Are Factors That Contribute To A High Heat Load In The Room. E.G. Commercial Cooking, Much Computer And Server Equipment, Switchgear, Temporary Building With Thin Walls And Flat Room, Plain Glass Conservatory.
The Total Average Pressure Drop Over Your Higher Efficiency Filters And/Or Carbon Filters Is;
Pascals
This Pressure Drop Is Costing In Energy Alone
£
Per year
It Is Probable That A Sanuvox In-Duct System Could Break Down The Biological, Chemical And Odourous Contaminants On This Air Flow For Between 16 And 25% Of This Running Cost
£
Lower energy cost estimate of an equivalent Sanuvox system (16%)
£
Higher energy cost estimate of an equivalent Sanuvox system (25%)
This calculator is provided as a broad based indication of the energy cost of running a filter based air purification, and an indicative cost of running a Sanuvox system as an alternative. It should not be assumed to be absolutely accurate and should not be used as the basis of an actual system design or forecast of cost saving of an actual system. We accept no liability for consequences of the inappropriate use of this calculator, or its results. Actual figures would depend on the proposed system for a particular application and on the exact parameters of that application.