Design

• Vertical and horizontal radiators differ in the distribution of dimensions of height and width. Vertical models are generally taller than horizontal, with narrower width measurements. However, both types of radiators are available in variety of sizes and shapes to fit the needs of individual homeowners.
  
  

Energy Type

• Vertical and horizontal radiators are available in both steam and electric models. Steam models employ pipes which carry water from the building's boiler into the metal components of the radiator to create steam. Electric models utilize electric wire heating elements to create the same effect. Unlike steam models, electric vertical radiators do not require boilers.
  
  

Location

• While style availability and energy type are similar for both horizontal and vertical radiators, location can prove to be the deciding factor in choosing between the two types. Horizontal radiators are designed for installation along low walls or below windows. In addition to the shorter stature of horizontal radiators, the design of newer models helps to combat drafts of cold air that may seep through closed windows. Vertical radiators tend to be narrower than horizontal and work best in tighter spaces in kitchens and bathrooms.