The ekol 8 crystal defra approved stove is a traditional solid cast iron construction hand made in the same way stoves have been made for the last 200 years but using the latest technological advances in the firebox and airflow designthe crystal 8 model is a truly advanced stove which is highly efficient ultra clean burning simple to operate with robust durable construction throughout and no delicate parts to go wrongprimary secondary tertiary air controldesigned developed in dorset