2005 tdi engine heater

Does anyone know what there is out there for wng/block heaters for 2005 tdi Passat wagons? I can’t seem to fine anything, anywhere! That little sucker takes forever to get heat in the early mornings and winter is almost upon us again. Thanks

FrostHeater is the one I usually see mentioned.

Blocking the radiator always helps too. Election season is upon us and the plastic signs work great.

Check your thermostat.