On Sep 29, 7:02 pm, "old and grunpy" wrote in
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"Green Xenon [Radium]" wrote in
messagenews: snipped-for-privacy@r66g2000hsg.googlegroups.com...
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>
> > >
> >> "Green Xenon [Radium]" wrote in
> >>
messagenews: snipped-for-privacy@s20g2000prd.googlegroups.com...
> >> On Aug 9, 8:02 pm, .p.jm@see_my_sig_for_address.com wrote in
> >> >
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> >> >> Think of this - stand next to a campfire on a cold night. up
> >> >> close = toasty warm. 10 feet away = cold.
>
> >> > The overwhelming majority of heat emitted from a fire, is convective
> >> > heat, not radiant heat. There is some radiant heat but it is very
> >> > small compared to the convective heat.
>
> >> WRONG!!!!!!
>
> > Convection is what causes the fire to point upwards. Hot air travels
> > up via convection. Put your hand below or on the side of a flaming
> > candle, you won't feel much heat [esp. below the below the flame].
> > However, if you place your hand above the candle, you get a painful
> > amount of heat. This is because most of the flame emits heat via
> > convection. Only a trace amount of the fire's heat is emitted through
> > radiation.
>
> Well I am not to argue with you, however any benefits that you are getting
> from fire is radiant heat
Fire consists of hot gases that move upwards. If it were radiant heat, then the heat would not specifically move away from the source of gravity. If you aim a butane torch downward, most of the heat will still go up. If it were radiant heat, then it heat from the torch would move downward.
what ever goes up it is waste and yes it is
> definitely hot strait above of it however I would not call it convection > heat.
What mechanism other than convection would cause the heat to go upward as opposed to in all directions?
Convection heat is consider your base board water or electric as long
> you don't have forced air over but natural convection.
Huh? "base board water or electric"??