Portable comfort so you can heat the room your way. Ideal for bedrooms or nurseries, SoftHeat hydronic baseboards wrap your family in gentle, steady warmth that fills the space. Using smart design, this heater reduces the effect of indoor allergens and has a lower surface temperature than many portable models. This portable heater can be plugged into any grounded, 120-volt outlet. This plug-in hydronic electric baseboard warms small to medium sized rooms up to 175 sq. ft.