Rotary chimney cowls used for mounting on top of the chimney on chimney ventilation ducts are devices that use wind force to support the chimney draft. The second secondary purpose of the attachment is to protect the chimney ventilation duct against precipitation. We manufacture spherical rotary bases in the range of inlet pipe diameters fi 150, fi 200, fi 250, fi 300 and fi 400 respectively from aluminum or acid-proof steel. Longitudinal chimney tops are used when we do not have much space to use the spherical base.

Assembly

The longitudinal or spherical slewing base should be mounted on top of the chimney through the base or directly on the chimney pipe. In both cases, the roots should be under the roof gable. It is important that the base is not covered on all sides by a wall or other flue pipe. In a situation where the distance between the chimney ducts is small, it is best to install longitudinal swivel bases. By flattening the base through the base, mark the hole in the mounting studs on the top of the chimney, drill the holes, place wall plugs in them, then screw the base of the rotary base by sticking the previously attached gaskets. If necessary, remove the chimney top with sealant beforehand. After checking that the whole structure is stable, put the cap on and tighten it to the base with side nuts. The cowl should rotate freely without any sound effect. When mounting the base directly on the chimney-insert pipe, fasten it with the help of side nuts - before cutting the longitudinal holes in the pipe. It should be remembered that in any case, to ensure the safety of users, the installation of attachments should be entrusted to specialized specialists.

Maintenance

Rotary bases, like any technical device, require maintenance. The review is best done once a year. A good moment is the annual review of chimney and ventilation ducts performed by chimney sweep factories. In order to carry out such an inspection, it is necessary to disassemble, by unscrewing the side nuts, the upper (rotating) part of the cap. Easy access to the chimney duct will allow you to check it, and the removed base can be cleaned - preferably with generally available detergent and running water. After drying and possible removal of technical defects, put the cap back on the base and tighten the side nuts.

Warranty

PRODMAX longitudinal and spherical rotary bases have a warranty of 2 years from the date of purchase. The warranty is valid only with proof of purchase and correctly filled out warranty card. It does not cover defects, which arose as a result of external mechanical forces, impurities, own processing, factor in chemical and unprofessional assembly. The quality of our products is very high and we hope that you will be satisfied with your purchase and many years of trouble-free operation.