It is connected with the same line meter and safety precautions.
Can you connect a 20 lb propane tank to a house water heater.
Propane a c units not cheap but have long life.
If you have a dot tank with a type 1 fitting you can use a hose like the mb sturgis propane pigtail 100833 15 which can connect to a regulator like 108220.
You could wrap a heat tape around it and then insulate the tank or for a short term fix warm the tank and regulator with hot water.
You could even connect inside directly to the furnace but you will still face the cooling issue.
It sounds like you are needing a hose and regulator to go from your 100 pound cylinder to the house main line.
You need to install a pressure regulator between the tank and hot water.
Link to parts you might need on amazon connecter kit.
Then wrap a hot rag or towel around the regulator.
However some homes use propane as a source of energy to warm water provide heat and cook indoors.
The warmer you can keep the tank and more importantly the regulator the less problem you will have maintaining pressure.
All you have to do is buy an adapter hose for about 20 from amazon or walmart and a 20 pound refillable propane tank the kind that comes with barbecue grills and your cost for propane will go down a huge amount and no more green bottles in the land fill.
You can connect a propane tank of nearly any size to your household hot water heater as long as you satisfy three conditions.
30 yrs hvac exp.
Https amzn to 2qzha3ai was looking for a way to connect a 20lbs.
If you managed to get it connected you could place the cylinder in a warm water bath after it cools.
The empty propane tank weighs about 20 pounds so if you add the 17 pounds of gas you have a full propane tank weighing around 37 pounds.
How much propane you can get out of the cylinder depends on how cold it is outside and how fast it is being drawn off.
From there you can connect a hose assembly like the 4 foot 100383 48 mbs if your main line uses a 1 2 inch flare fitting.
Propane generator w storage cells for electric use.