"John A. Weeks III" wrote in news:john-
:

No, I meant CO2. A catalytic heater uses gas to create heat
without burning. The waste products are water and CO2. If
you are burning the gas, then you get CO. The catalytic
heaters are advertised as "safe" since there is no flame,
but they use Oyxgen. This reduces the oxygen level in the
air, which allows your body to start using CO2 in place of
the O2, which can cause brain damage or kill you. The big
issue is getting enough fresh air when you use one of these
things, or having an oxygen depletion sensor. I'd never
suggest using an open flame heater in an enclosed location,
so those are not even a question of being used.

-john-



A catalytic heater would burn natural gas, LP, or propane just like a
furnace or stove burns it to generate heat. However, there is would be no
flame with a catalytic heater. Therefore the same applies as with
burning: gas + O2 -- CO2 + H2O.

High levels of CO2 would first make you sleepy, then at even higher levels
it would kill you (eventually) by changing the pH of your blood.

Finally, by displacing oxygen, CO2 would kill (at very high levels) by
asphyxiation. This is commonly used in medical research to euthanize
experimental animals. It is a humane death, without suffering.

--
Best regards
Han
email address is invalid