Origins
The wheaten terrier originated in Ireland around the 19th century. The dog was bred for the farm. At the time of the development of the terrier, the animal was used as an all-purpose helper: part farm-hand, part-companion. The terrier was often used for hunting and also to kill pests that were found around the farm. Other uses included herding flocks and keeping watch over the farm.
Size
The height and weight of the wheaten terrier varies from dog to dog and is noticeably different between genders. According to Canada's Guide to Dogs, however, the ideal height for male terrier is about 18.5 inches and 17.5 for the female. As for weight, the ideal is between 35 and 40 lbs. for males and 30 to 35 lbs. for females.
Temperament
Wheaten terriers tend to be confident and happy dogs. They are also alert; yet, despite their past use as watch dogs and herders, they are not as aggressive as other types of terrier. The wheaten terrier is also very active and maintains a "puppy-like" disposition throughout its life. Consistent with their history as family companions and farm hands, the terrier enjoys companionship, and usually thrives in a family setting.
Health Issues
Wheaten terriers are generally healthy dogs, usually living between 12 and 15 years. However, these terriers are susceptible to protein-wasting disease also known as protein-losing nephropathy. In this condition, the dog loses protein through its kidneys. Protein wasting is potentially fatal for the dog, but can sometimes be managed. Wheaten terriers are also prone to flea allergies and dermatitis.