Can a Diesel Heater Keep Me Warm? Truck Camping Below Freezing Temps

We are testing out a diesel heater for our winter truck camping set up on a late season deer hunt in Oklahoma. The below freezing weather will be a good test to see if our diesel heater can heat my wedge style Harker truck camper in heavy winter winds. US CODE LFG25 FOR 20% OFF THESE HUNTING TOOLS ...