greenhouse heaters

[BikerDoc5968]

Just a minute.... Can I assume you heat your home with a natural gas furnace????? And is this furnace located in a basement???? And if so, then there should be a gas line that goes from the meter located outside to the furnace inside????? YES???? Now, how far from your home structure will the GH be located? Somewhere in the course of that gas line there must be shut-off valve or other connecting link which would serve as a point of access. Connect at that point and run your line, whether black pipe, flex copper or whatever, along the ceiling of the basement and outside.From this point, you can run buried copper in a PVC conduit as I did. No permits, no inspectors, no leaking gas... just a warm GH! Having said all of this and not knowing your specific situation, I understand some modification will be necessary. In my picture #5 above, that line goes out through the base of the home. The PVC conduit comes through the base, goes down into the ground about 1' and travels buried about 18" under the full run of the GH and then back up as pictured in #6. Now, is all that I did by the "book".... probably not but it is safe, protected and works for me.