Rondo Plus is suitable for all which should be acid-resistant and flame-retardant three-layer stack, which is also suitable for burning grain. Cabins chimney may be used for long periods, and often in the first ignition of the fireplace chimney draft is weak and the smoke could come inside. RondoPlus is doing well even in this situation, because Rondo chimney does not need to pre heat itself in order to operate well. Rondo finished pipes have been developed to operate at low temperatures. Every section adds 330mm in height. Available with single, double or triple flue. Courtesy by rakennustieto Finland. These downloadable objects are only available in Finnish at the moment. Courtesy by rakennustieto Finland. These downloadable objects are only available in Finnish at the moment.