23ZERO tents are designed in Australia, and the name derived from the geographic coordinates of Alice Springs, Australia (23.6980° S, 133.8807° E).

Our name 23ZERO is derived from part of the co-ordinates of one the toughest places on the planet and the most central place in Australia, Alice Springs. Alice Springs is a small place surrounded on all sides by an expanse that truly helps you to remember how small we are in a huge universe.

Some folks would say that Yellowknife, where I live is also one of the toughest places to live and also pretty close to the central place in Canada. Officially, Baker Lake, (64.3176° N, 96.0220° W) Nunavut is termed the “Geographical centre of Canada”. Yellowknife (62.4540° N, 114.3718° W) is approximately 934km the west of baker Lake. Coordinates aside, Yellowknife is still a tough place to live, and literally (seasonally) at the end of the road. During the winter the Tibbitt to Contwoyto Winter Road extends approximately 400 to 600km beyond the all season road (highway 4) that ends at 65 km east of Yellowknife.  Average temperatures in Yellowknife vary from +25C to -30C and with windchill can plunge to -45C. 

Below -30C it is just downright ….(swear word) Cold!.  I don’t even think about using a tent at those temperatures. My comfortable limit is close to -23 (Below) Zero.

I’ve got a winter liner for the 23ZERO rooftop tent and built a propane heater system using a Propex HS2800 heater, a car battery, 20lb propane can, ducting and a table (brown box in picture). If looks a bit jury rigged – it is !. This is the prototype that we tested last year. Version 2 is on a metal step ladder to support the venting pipes from the heater and it takes about 10 minutes to set up.

As a bonus, not only is the tent warm, the ducting can also be use to warm up the truck !.

If you have any questions about the set up – drop me a comment.