eBay or your local classified advertisements are the best bet, since I don't think there are any US manufacturers anymore. Smudge pots are such an environmental nightmare, and there are much better and more cost-effective methods available. Simply starting up water sprinklers over the trees when there is frost danger will take care of them as well as smudge pots would. Orchard fans are another possibility.
You might be able to find some old ones tucked away in some farmer's shed, but they are illegal to use in most areas due to the major pollution hazard.
eBay
You may be referring to the use of smudge pots which is a method of using oil burning heaters in orchards to prevent freezing of the crops.
are smudge legal in california
Ther is a company in Australia called Henstock Technologies selling a smudge pot or choofa, called a "Demon"
They do not work by heating the air. They work by producing a heavy smoke layer over the orchard which reduces the heat loss by radiation to the night sky.
A small smudge
A small smudge
The plural of smudge is smudges.
A small smudge
Smudge isn't a Moshling.
The plural of smudge is smudges.
olive orchards ____ Orange, lemon and lime orchards can be found in Spain. Olive groves (not orchards) as well.
The address of the Otis Orchards Library is: 22324 E. Wellesley Avenue, Otis Orchards, 99027 9336