The "house" already has a regulator for the supply of gas going to the house, thus the gas from the "tap" is likely already reduced in pressure. Basically, the Suites, if supplied with a line for a tap, is likely coming after the regulator at the tanks. Therefore, one would need to remove the pressure regulator at the grill and operate off of the regulator at the tanks.
This topic was discussed, with different solutions, over on the SOITC website's forum. Here is a link to that thread.
http://www.suitesowners.com/forums/s...ht=propane+tap
Terry