1 With all needed parts and labor, hiring a plumber to install a traditional gas water heater costs $300-$3,500 or more, depending on capacity (with 40 or 50 gallons the most common sizes); length of warranty (typically 5-12 years); and the amount of repairs required to meet current building codes.
L-Theanine and Caffeine Dosage. Theanine and caffeine are most often used in a 2:1 ratio. Each capsule contains 200mg of theanine and 100mg of caffeine. For best results, individuals should take 1 theanine and caffeine capsule per day.
Directions on bottle: L-theanine can be taken at a dose of 1-200 mg three times per day. Rhodiola dose will depend on quality and preparation. The dose range should be on the label. When starting something new, it is best to test your body and product with smaller dose the first day.