I'm planning on installing a natural gas pool heater. I want to have a 1-1/4" black iron pipe exit the house where it will run for about 5ft to the heater which will then be reduced to 3/4". I don't want the pipe to be in contact with the ground to prevent corrosion. I think it would also be easier to paint the underside of the pipe if it was elevated about 6 inches from the ground.
Being elevated like that does it make sense to place a permanent concrete block under the pipe somewhere halfway in-between the house and the heater? I want to protect the line and the equipment in case someone decides it's a good idea to stand on top of the pipe. Is there an an industry standard to something like this? Is the concrete block a good idea?