I use #40 propane bottles because they’re a lot easier for the old man to manipulate than more traditional #100 bottles. I just keep more bottles around, which has the added benefit of redundancy. But while you can tell a bottle is nearly empty by weight, there’s only one sure way to find out it’s completely empty…

…and that’s for the fire to go out. Normally, at the worst possible time.
We’re finally getting a rainy day. I woke at five to the sound of a hard rain on the bedroom’s metal roof; that didn’t last long but it has drizzled and dripped all day without pause. Depressing even when it’s welcome. Fortunately it’s cool, and also fortunately it was going to be baking day in any case and I was looking forward to the cheering smell of nearly-done bread. Should have been warned by the lack of that lovely scent.
















































Either get a second switchover regulator, or plumb your stove to your furnace regulator?
I trust you were able to salvage the batch, maybe start a new trend, twice baked bread 😉
You may want one of these…
https://www.amazon.com/gas-grill-propane-gauge/s?k=gas+grill+propane+gauge
I heat a pumphouse and a small shop with propane*, and the switchover regulators are wonderful. One neat bit is that they’ll have a check valve, so you can disconnect the empty tank without having to turn off the heaters. I used to immediately take the empty to the local fill station, but now I have spare tanks, so I can refill later on.
New 50 pound tanks seem to have disappeared locally, but the 40s are a bit easier to manhandle.
(*) We have some serious winter (-28F personal best), and I’m trying to run the pumphouse off grid, so I’d rather not use electric heat.