Go look at "The Rodenator". The videos are pretty cool.
Particularly the $1895 price tag.
I think I can put one together for a whole lot less than that. I just have a few questions. The hose is quoted as "T" type. I am ass-u-ming then, that propane needs a special hose. It also needs a special regulator, which is available at their site cheaper than I can find it at some other sites checked.
I would use good ninety degree valves downstream from the mixing chamber, and flashback arrestors on each leg.
Can anyone steer me to a site for a good piezoelectric generator and igniter? I want one that is pretty hefty, but that can be run off a wire about four feet long. I am thinking of making a box of a control panel and mounting one of the heavy barbecue sparkers that has a twist dial. But, if I can find a smaller battery powered one, a push button on a 9v. battery would be a lot lighter.
I am moving soon to an area where I have gophers in my front yard. Lots of ever growing mounds. I know a lot of the local ranchers, and I think I can make some side money on this. It surely won't cost a lot to make a setup and try it. I'll have 6.13 acres total soon, and I know I'll be having a constant warfare with gophers.
Input appreciated.
Steve