His experiments with heating stoves in the 1860s led to the reshaping of his foundry business from the roller grain drill to the heating stove.

It contained two rows of double seats, a central aisle leading to the teacher's desk, and a heating stove at the north end.

The company restored the building, leaving antique heating stoves, carefully retouched decorative friezes and warm parquet floors in many offices.

The wooden cars were set alight by their heating stoves, but no attempt was made to extinguish the fire.

Cast iron heating stoves with detached pipes are located near the south end.