The best replacement for storage heaters is central heating.

The best alternatives to storage heaters are rated as following:
★★★★★  central heating
★★★★★  gas central heating
★★★★  panel heaters
★★★  convector heaters
★  electric heaters
★  oil central heating
★  electric radiators
★  oil filled radiators
★  underfloor heating
  radiators

Your alternative for storage heaters is not listed? Suggest!
Speaking about storage heaters, one probably shouldn't forget about economy 7.

Other search terms related to storage heaters and their ratings are:
★★★★★ economy 7
You have in mind a companion for storage heaters and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of storage heaters in all years. Click on graph for more.
storage heaters
central heating
gas central heating