The best replacement for heat lamp is heat pad.

The best alternatives to heat lamp are rated as following:
★★★★★  heat pad
★★★  space heater
★★  flood light
★★  infrared
★★  white heat lamp
★★  grow light
  infrared heat lamp
  heat rock

Your alternative for heat lamp is not listed? Suggest!
Speaking about heat lamp, one probably shouldn't forget about exhaust fan.

Other search terms related to heat lamp and their ratings are:
★★★★★ exhaust fan
chicks
carving board
You have in mind a companion for heat lamp and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of heat lamp in all years. Click on graph for more.
heat lamp
heat pad
space heater