Hey guys, just got back from camping. Yea the heater was great. We used an oil heater in a Cavalier CT.
The canvas isnt insulated in any way and during the night we had a Very cold night and it didnt make the tent toastie warm but took all the nip out of the air and was very comfortable inside. ( Frosted car window in the morning )
One thing is the heater drys the air out so make sure your well hydrated or find a way of replacing a bit of the moisture in the air or you will wake up wondering y your so thirsty
Other thing we did was replace our blow up mattresses the girls slept on last time with a sponge mattress as the air mattress got very cold from the ground temp.