RV8 - OK.. So Vans has the air source to the heat muffle for cabin heat coming from the left corner of the upper engine compartment..
Can.. more importantly.. should I ?
Use the same compartment source for the not-heated air venting source? It would make the installation simpler, and I expect lower pressure drop in the scat tubing having a much shorter ducting run? than grabbing it from the CB-1002A or CB-710A forward air ramps.
I assume given the volume of air entering the chamber that heating of the incoming air is minimal as well as picked up engine odors.
Yes it eliminates the option of an air source during a fire, but most fire related procedures include closing all venting.. and yes I understand a slightly increased risk of CO2 issue. (and maybe that reason enough not to do it)
But I assume CO2 issues is more of an issue with air flow in the lower engine compartment. Have uses dual SS heater control boxes. One for heated, one for non-heated, cross connected via interior via ducting pic shown.
A pic is attached of what I was thinking..
Plus a photo of interior dual venting connections?
Just need a push to take one direction or another?
My guess its all about balancing risks?
Thanks... Alan
FRESH AIR SOURSE OPTION ??
Fresh Air by Arthur Karpinski, on Flickr
INTERIOR CROSSCONNECTED DUCTING
Cross Ducting by Arthur Karpinski, on Flickr
Can.. more importantly.. should I ?
Use the same compartment source for the not-heated air venting source? It would make the installation simpler, and I expect lower pressure drop in the scat tubing having a much shorter ducting run? than grabbing it from the CB-1002A or CB-710A forward air ramps.
I assume given the volume of air entering the chamber that heating of the incoming air is minimal as well as picked up engine odors.
Yes it eliminates the option of an air source during a fire, but most fire related procedures include closing all venting.. and yes I understand a slightly increased risk of CO2 issue. (and maybe that reason enough not to do it)
But I assume CO2 issues is more of an issue with air flow in the lower engine compartment. Have uses dual SS heater control boxes. One for heated, one for non-heated, cross connected via interior via ducting pic shown.
A pic is attached of what I was thinking..
Plus a photo of interior dual venting connections?
Just need a push to take one direction or another?
My guess its all about balancing risks?
Thanks... Alan
FRESH AIR SOURSE OPTION ??
Fresh Air by Arthur Karpinski, on Flickr
INTERIOR CROSSCONNECTED DUCTING
Cross Ducting by Arthur Karpinski, on Flickr