The best replacement for heat shield is covercraft.

The best alternatives to heat shield are rated as following:
★★★★★  covercraft
★★  heat wrap
★★  turbo blanket

Your alternative for heat shield is not listed? Suggest!
Speaking about heat shield, one probably shouldn't forget about ghost rings.

Other search terms related to heat shield and their ratings are:
★★★★★ ghost rings
You have in mind a companion for heat shield and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of heat shield in all years. Click on graph for more.
heat shield
covercraft
heat wrap