AZdog

@edwmax

What I am looking for is a larger regulator to allow more gas flow through - the problem that I have had is that most regulators don't indicate their max BTU output, but rather state their PSI rating.

I am looking for a regulator with around 200k BTU flow through.

@ICE

Unfortunately my BB@ and propane shops around here don't sell anything with more than a 160k flow.

Rego regulator Looks like this one can handle 935,000 BTU - think it will do the trick.

What you are looking for is a regulator with larger inlets & outlets. ... The one you linked to has 3/4" dia outlet. It should more than meet your needs. The BTU capacity of the regulator is based on pipe size & internal orifice size, not PSI. .... But, the questions now are, ..... can your tank supply the required gas flow ???? ... Is the gas piping from the tank & regulator to your trail manifold line 3/4 inch (or 1/2 inch)???? ..... Are there any pipe size restictions in the supply lines????

Ice Cream Man's explanation is correct. .... But what is not being understood is that as PSI is increased quantity of flow is decreased. Thus accual BTUs being delivered decreases. Also, increasing the PSI increase the back pressure on the tank, therefore, the amount of gas the tank can generate decreases.

..... This is no different than someone putting their thumb over the end of a water hose to increase the distance the water will squirt. As the pressure increase the water will squirt a father distance, but the amount of water flowing out (BTUs in your case) decreases.

ref:

pipe size:

http://home.mchsi.com/~gweidner/pipe-sizing-charts-lp.pdf LP Regulators:

http://inspectapedia.com/plumbing/Gas_Cylinder_Regulators.htm **Vaporization Rates of Cylinders** (3rd chart down): [http://www.uscarburetion.com/lp_gas.htm[/url]
post edited by edwmax - 2010/08/20 08:43:39