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.
The five factors below are important deciders of whether or not you will experience any L-Theanine side effects. 1. Dosage. The L-Theanine dosage that you use is a very important factor in deciding whether you may or may not feel any L-Theanine side effects. The recommended L-Theanine dosage is around 100-200 mg, once or twice daily.