The barrel-shaped Honeywell 360 Degree Surround Heater won’t win any design awards, but it’s small and compact at 6 x 5.87 X 3.2 inches, so it will be fairly inconspicuous in a den or family room.

Honeywell UberHeat Ceramic Heater ($24.74, originally $30.78; amazon.com) This compact heater is ideal for tabletop placement, but don’t let its small size fool you.