Perhaps I'll comment on these 2 messages on Friday.  

Patrick Spragge

> On Dec 22, 2016, at 8:27 AM, Alistair Bell <albell@SHAW.CA> wrote:
> 
> If you look at the chemistry of propane combustion and you spend some time to understand it, then you will see how much water vapour is produced per unit of propane burned.
> 
> It's is not fake news or exageraration. It's basic science. As unpopular as science is these days, it still rules.
> 
> 
> Alistair
> 
>> On Dec 22, 2016, at 8:20 AM, Don Hanson <dhanson928@GMAIL.COM> wrote:
>> 
>> The word was the Mr. Heater, and others, catalytic propane, create a lot of
>> water vapour in a Vanagon.  That seems to be fake news, or perhaps an
>> exaggeration.
>>  I've been running two now, in the wet southwest desert, one in a camp
>> trailer and one in the "annex" (my Vanagon)   Fairly humid here now,and no
>> interior moisture problem at all.  Perhaps the catalytic combustion is
>> dryer than people have said..
>>   Now when I ignite the Westie cook top, the Vanagon steams right up,
>> immediately.
>>    So there you go, a report of one family's (two humans and three large
>> Chesepeake dogs, full timing with two Mr. Heaters as our comfort heat)