Short run of propane to stove and tankless WH

propanetankless

I have a small stove with a propane conversion kit and a 3gpm propane tankless water heater. This is for a small MIL suite ~650 sqft. Both the stove and the water heater are on the same exterior wall, about 6ft apart. The wall has no windows or other openings. I want to place 2 20lb BBQ tanks outside on that wall. I've been searching for information about connecting a changeover valve like used in RVs to them. From there, a short run of black pipe, through the wall to street elbows and a shut-off valve at each appliance. Both appliances have 1/2" connections. I can't seem to find specific information about connecting the tanks to the black pipe. What do I use? I am going to have this pressure tested and inspected after I'm done.

Best Answer

What I ended up getting was a hose with a regulator. On the other end was a 3/8" flare female. I found a 3/8" flare male to 1/2" MIP (Male iron pipe). I used a 1/2" coupling to a 3" nipple to a tee. From there it went to each of the 1/2" nipples through the wall, to a street elbow, and finally to a gas shutoff valve. This is the basic setup now. I'll have to order a changeover for the 2nd tank.

street elbow => shutoff         street elbow => shutoff
|              ---------        |
|                wall           |
|              ---------        |
|__________________Tee__________|
                    |
                    |
              1/2" coupling
                    |
        3/8" male flare to 1/2" MIP
Regulator with hose 5/8" female to 3/8" female
              propane tank
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