Secondly, the 20066 introduces a ReadyStart Briggs & Stratton engine, which starts without priming or choking. Like all models in the series, the 20066 utilizes a 22" steel deck designed to handle rough and uneven terrain. The height of cut can be set at one of nine positions between 1.25" and 4.25". The most significant features found only in higher models are electric start and blade override. Two years of full warranty coverage are offered.