The need for frequent maintenance of roller bit
Roller cone bit system and buildings with life, no need to repair and maintenance, but also it than other traditional heating system is unable to compare, unless it is a man-made destruction, such as screws nail into the floor, marble floor tiles, etc. the heating material damaged, broken, affect the indoor heating effect.
Bit system manufacturers warranty of ten years, life in 50 years. The only roller cone bit system prone to failure only thermostat. Bit the product itself basically does not need maintenance.