Anyone using the Mr. Heater "Journey" catalytic heaters?

Skibane wrote:

ktmrfs wrote:
Unvented propane appliances dump slightly less than a gallon of water into the air for every gallon of propane burned.

Operating on the 1500 BTU "low" heat setting, a catalytic heater would need to run 2.5 continuous days to consume a gallon of propane (and thus produce one gallon of water).

One person exhales that same amount of water in roughly 48 hours (not counting daily activities such as bathing, showering, washing dishes, etc.)

So - Yes, it contributes some additional moisture, but not a huge amount.

Actually, a RV can be considered a "confined space", a 8' x 30' RV is only 240 square feet which is not a lot of space.

Bathing, cooking and breathing can put a considerable amount of moisture into the air, so much so that in the right weather conditions your ceiling will start dripping water droplets.

Now add in any extra moisture input from an unvented gas fired heater without adding any way of allowing air exchange from the outside you are just making a bad thing even worse.

I did some work for one of my BILs when he was building a new house, heated the basement with two unvented propane heaters.. Every morning I had to dry and clean the rust and rusty moisture off of my tools and that was in a 30'x70' 2100 sq ft basement..

Don't know of any gas fired device that states safe operation can be achieved in small fully enclosed spaces without outside air exchange..

Personally, myself, just inhaling the combustion byproducts of unvented gas heaters gives me headaches and flairs my Asthma after a couple of hrs.

Use if you must at your own risk, but if you must, read and head operating instructions.