Hi Guy ... good questions. Its a plan under development so missing some answers.
I'll try this first on a gas stove. I'm hoping for more stable temps than an electric burner with on /off cycles will provide. I have a laser heat gun to monitor the temps.
I'll start with a small test run of say 1/2 cup of oil with no cannabis. Need to confirm if the oil will get hot enough and fluid enough to go up the central pipe into the strainers. I have no idea why water goes up hill in coffee makers haha.
I found the following temperature information this am:
?-9-tetrahydrocannabinol (THC) Boiling point: 157C / 315 degree Fahrenheit ( Merck 200C @0.02). Properties: Euphoriant, Analgesic, Antiinflammatory, Antioxidant, Antiemetic
Cannabidiol (CBD) Boiling point: 160-180*C / 320-356 degree Fahrenheit Properties: Anxiolytic, Analgesic, Antipsychotic, Antiinflammatory, Antioxidant, Antispasmodic
Cannabinol (CBN) Boiling point: 185*C / 365 degree Fahrenheit Properties: Oxidation, breakdown, product, Sedative, Antibiotic
Cannabichromene (CBC) Boiling point: 220*C / 428 degree Fahrenheit Properties: Antiinflammatory, Antibiotic, Antifungal
Cannabigerol (CBG) Boiling point: MP52 Properties: Antiinflammatory, Antibiotic, Antifungal
?-8-tetrahydrocannabinol (?-8-THC) Boiling point: 175-178*C / 347-352.4 degree Fahrenheit Properties: Resembles ?-9-THC, Less psychoactive, More stable
Antiemetic
etrahydrocannabivarin (THCV) Boiling point: < 220*C / <428 degree Fahrenheit Properties: Analgesic, Euphoriant
Terpenoid essential oils, their boiling points, and properties
ß-myrcene Boiling point: 166-168*C / 330.8-334.4 degree Fahrenheit Properties: Analgesic. Antiinflammatory, Antibiotic, Antimutagenic
ß-caryophyllene Boiling point: 119*C / 246.2 degree Fahrenheit Properties: Antiinflammatory, Cytoprotective (gastric mucosa), Antimalarial
d-limonene Boiling point: 177*C / 350.6 degree Fahrenheit Properties: Cannabinoid agonist?, Immune potentiator, Antidepressant, Antimutagenic
linalool Boiling point: 198*C / 388.4 degree Fahrenheit Properties: Sedative, Antidepressant, Anxiolytic, Immune potentiator
pulegone Boiling point: 224*C / 435.2 degree Fahrenheit Properties: Memory booster?, AChE inhibitor, Sedative, Antipyretic
1,8-cineole (eucalyptol) Boiling point: 176*C / 348.8 degree Fahrenheit Properties: AChE inhibitor, Increases cerebral, blood flow, Stimulant, Antibiotic, Antiviral, Antiinflammatory, Antinociceptive
a-pinene Boiling point: 156*C / 312.8 degree Fahrenheit Properties: Antiinflammatory, Bronchodilator, Stimulant, Antibiotic, Antineoplastic, AChE inhibitor
a-terpineol Boiling point: 217-218*C / 422.6-424.4 degree Fahrenheit Properties: Sedative, Antibiotic, AChE inhibitor, Antioxidant, Antimalarial
terpineol-4-ol Boiling point: 209*C / 408.2 degree Fahrenheit Properties: AChE inhibitor. Antibiotic
p-cymene Boiling point: 177*C / 350.6 degree Fahrenheit Properties: Antibiotic, Anticandidal, AChE inhibitor
Flavonoid and phytosterol components, their boiling points, and properties
apigenin Boiling point: 178*C / 352.4 degree Fahrenheit Properties: Anxiolytic, Antiinflammatory, Estrogenic
quercetin Boiling point: 250*C / 482 degree Fahrenheit Properties: Antioxidant, Antimutagenic, Antiviral, Antineoplastic
cannflavin A Boiling point: 182*C / 359.6 degree Fahrenheit Properties: COX inhibitor, LO inhibitor
ß-sitosterol Boiling point: 134*C / 273.2 degree Fahrenheit Properties: Antiinflammatory, 5-a-reductase, inhibitor
Based on this, I'll do a first test run @ 305F to see what happens I don't want to vaporize any goodies. That said, maybe I do want to vaporize it if and only if it stays locked in the oil. A test at or over 320F is in my future.
The decarb will occur at the same time is my theory.
Now the time variable.....hmmm