[tmotten]

What should be my expectations with a propex hs2000 for heating a van that's been left out in -10F/-25C temps for the day? How long would it take for that space to heat up enough to take the down jacket off?

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[phil]

It never will.

 

[tmotten]

Even when it's fully insulated? I'm thinking of using the van in winter in the Canadian Rockies going skiing or something. Do most people just keep it running with the thermostat? Not sure I trust it enough to run when I'm not there.

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[phil]

I gave an answer based on an empty metal van.

I don't have one, but

If you also have insulated windows, a curtained off cab area and all exposed metal covered, based on the specs there is no reason why it wouldn't work. The output is about 6400 BTUs.

https://www.propexheatsource.co.uk/heaters/hs2000

The only reason to keep it on is to keep something from freezing.

If you have a van and cold weather you can experiment with an electric heater and a kil-o-watt meter to get the insulation to an acceptable level.

Comparison,

The Espar D2 is rated at 2900/4100/6500/7500 BTUs that allows for some adjustment if you don't get the insulation right.

http://www.eberspaecher-na.com/fileadmin/data/countrysites/EB_Kanada/pdf/EB_Airtronic_D2_D4_D5_WEB_READY_01_26_15.pdf

 

[RDinNHandAZ]

Know the heat output of the Propex? Use GaryBIS’s calculator to find out your heat loss. If the heater output is more than your heat loss it will heat the van. Science is wonderful isn’t it?

https://www.builditsolar.com/References/Calculators/VanHeatLoss/VanHeatLoss.htm