The LHPO runs only on propane, at full bottle pressure (that is, five to ten bars, depending on ambient temperature).
The LHPO may be run from either a bank of propane bottles feeding into a manifold and then proceeding along a main gas pipe to the organ, or from a single propane tank with either liquid or gas feed. If liquid feed, a gasifier must be provided with sufficient peak capacity (see below).
If a single tank, the tank must have at least a three ton filled capacity, to provide enough thermal mass for the required gas delivery rate (see below). The tank connection must be at least 1 1/2 inch inside pipe diameter, to provide for sufficient gas delivery rate.
If a multiple tank installation, at least 28, 33kg capacity bottles are needed. The bottles may not be all close packed into a rectangular array, but must be in one or two rows, with adequate air circulation around the bottle area to provide for heat transfer to the bottles.
If a liquid phase system and a gasifier are to be used, the system must be able to deliver the peak delivery rate (see below) for at least ten minutes continuously."
https://web.archive.org/web/20001204191400/http://www.lhpo.o...
and specifically:
https://web.archive.org/web/20010215034409/http://www.lhpo.o...
"2.3 Gas installation:
The LHPO runs only on propane, at full bottle pressure (that is, five to ten bars, depending on ambient temperature).
The LHPO may be run from either a bank of propane bottles feeding into a manifold and then proceeding along a main gas pipe to the organ, or from a single propane tank with either liquid or gas feed. If liquid feed, a gasifier must be provided with sufficient peak capacity (see below).
If a single tank, the tank must have at least a three ton filled capacity, to provide enough thermal mass for the required gas delivery rate (see below). The tank connection must be at least 1 1/2 inch inside pipe diameter, to provide for sufficient gas delivery rate.
If a multiple tank installation, at least 28, 33kg capacity bottles are needed. The bottles may not be all close packed into a rectangular array, but must be in one or two rows, with adequate air circulation around the bottle area to provide for heat transfer to the bottles.
If a liquid phase system and a gasifier are to be used, the system must be able to deliver the peak delivery rate (see below) for at least ten minutes continuously."