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TexSky00 · 09-12-2024, 04:18 PM

Sorry if this has been answered already, but I could not find it with a search.

Basic question: do the little steel regulators used on camp stoves (e.g. Coleman 328 Cascade) with the 16oz disposable bottles have a minimum input pressure for operation?

My specific situation: Buying the Coleman Cascade 328 3-burner stove for my SIL for his Coleman 2001 Westlake pop-up. The Westlake has a high-pressure connection on the frame that is regulated to 16psi.
The Cascade stove uses the 16oz bottles with a metal regulator connection (5430-5651) that drops the pressure to 15psi.
So I'm wondering if I use an unregulated hose with appropriate adaptors to connect the 16psi from the camper to the regulator input on the stove, can I expect the regulator to operate properly and drop the pressure by 1psi to 15psi for the stove? Or will the regulator provide no flow because the 16psi input is lower than it expects straight from a bottle?

Alternative: Would it be safe to operate the stove straight off the 16psi from the camper (assuming I can assemble a hose with the proper fittings)? Will the +1psi difference be enough to cause safety issues with the stove?

Tried calling Coleman, but their customer support was no help.

Old-Biscuit · 09-13-2024, 01:58 PM

This is a head scratcher.......I find it difficult to believe the Coleman Stove operates on 15 psi to the burners.
RV LP Systems and even Residential Gas Systems (LP or Natural) drop pressure from tank/cylinders (100-250 psi) down to 0.39/0.4 psi for appliances
(2 stage regs.....100/250 psi>15psi (1st stage)>>0.39/.4 psi 11"WC (2nd stage output

That Coleman Trailer does have a high pressure reg that controls at 16 psi outlet.........connection it directly to stove w/o reg would be a Bonfire/Blow torch
Connecting it to the Cascade 5430-5651 Reg should work as that reg should drop input pressure down to 11"WC for the burners

THenne1713 · 09-13-2024, 03:18 PM

Most all RV appliances, including 25k-btu furnace, use 11-inches water column pressure (= LESS than 1-PSI); Common Exceptions can be deep fryer or blow torch.

My suspicion is that the lower pressure 15-psi regulator is more to reduce risk associated with the quick disconnects for grills?

TexSky00 · 09-14-2024, 06:00 PM

Thanks for the replies guys. I'm definitely not a propane expert, but significant reading on camping portals more focused on pop-ups and tent camping lead me to believe that this stove is a "high pressure" model. My own outdoor stove is a Camp Chef Everest 2X which is also a "high pressure" stove and according to the technical expert I spoke with at Camp Chef that stove operates on internal pressure of 10psi.
All the folks over on the other forum (PopUp Portal) seem to agree that the high pressure outdoor stove supplied with the Coleman/Fleetwood pop-ups in the late '90s and early 2000's operated on 16psi.
As I said, I'm no expert and I don't understand exactly how this works. I do know that the whole purpose of these "high pressure" outdoor stoves is to supply high BTUs and robust flames to fight wind when cooking outdoors.

I'll give the setup a try with the extension hose connecting the 16psi regulated output from the trailer to the input of the external regulator for the Coleman Cascade stove and see if the regulator really can take a 16psi input and drop it to 15psi as designed.

BTW, yes I'm aware of the 0.5 psi (11" wc) pressure of internal appliances as well as the external QC on my own TT. That is why I'm not able to connect my Everest 2X to my QC. The pressure is not high enough for the stove. I checked this with Camp Chef. This only applies to the "Mountain" series of Camp Chef stoves, not the others.