The best replacement for radiators is baseboard.

The best alternatives to radiators are rated as following:
★★★★★  baseboard
★★★★  underfloor heating
★★★  convectors
★★★  central heat
★★  copper radiators
★★  baseboard heating
★★  drains
★★  floor heating
★★  space heaters
★★  fan heaters
★★  underfloor
★  storage heaters
★  central heating
★  electric heaters
★  underfloor heating costs
★  hot water radiators
★  baseboard heat
★  tumble dryer
★  electric underfloor heating
★  stock radiators
★  brass radiators
★  warm air heating
★  murray radiators
  baseboards
  forced air heating
  down flow radiators
  brass

Your alternative for radiators is not listed? Suggest!
Speaking about radiators, one probably shouldn't forget about towel rails.

Other search terms related to radiators and their ratings are:
★★★★★ towel rails
★ baseboard heat
★ heat pumps
underfloor heating
You have in mind a companion for radiators and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of radiators in all years. Click on graph for more.
radiators
baseboard
underfloor heating