How many propane accessories can run at once?
I'm wondering how many propane accessories can be expected to operate simultaneously. This is my first time purging the fuel lines this year (late start, busy life, blah blah blah), so maybe things w...
Forum Discussion
nomad297 wrote:Old-Biscuit wrote:
Regulators should be set to maintain 11" WC with 100% of propane equipment in service (although 50% will work).
Sounds like your LP regulator is NOT working correctly.....could try to adjust it but may just want to replace.
This is not entirely true. The regulator only regulates pressure and not the flow. Correct pipe sizing for the total BTUs at the specific long run to maintain no more than a 1/2" drop on an 11" water column is the standard. This means that your system should be sized such that each appliance, when turned on will not cause more than a 1/2" drop on an 11" water column at the appliance. If you now have a 3/8" regulator, you might add enough to cause you to need a 1/2" regulator, or a 3/4" regulator, or maybe even a 1" regulator. You don't increase the pressure (water column) on an undersized regulator when you add more appliances -- you increase the size of the system and maintain the same water column.
Bruce
But if the regulator is undersized you will need to increase the btu flow capacity of regulator along with the increased pipe sizing or the regulator will not be able to flow enough propane to maintain the 11" WC.
Regulators do have different flow capacities.
Typical 2 stage RV regulator has roughly 210,000 btu flow capacity so that 11" WC can be maintained when ALL appliances are in service
