This definition applies to interactions of drugs with other drugs (drug-drug interactions), as well as drugs with food (drug-food interactions) and other substances.rug interactions overview. Whenever two or more drugs are being taken, there is a chance that there will be an interaction among the drugs. The interaction may increase or decrease the effectiveness of the drugs or the side effects of the drugs.
On average, it takes an electric heater twice as long to heat up than natural gas. It would take around 60-80 minutes for a new 40-gallon tank to gain 60 degrees, and even longer for a larger capacity tank to adequately replenish.
At publication time, residential models of tankless heaters can provide 5 gallons of hot water per minute, heated to 90 degrees. This will not be enough hot water for a family that needs hot water for showers, laundry and a dishwasher -- especially if more than one item is run at the same time. 1  Consumer Energy Center: Water Heaters. 2  Consumer Reports: Water Heater Buying Guide.  Consumer Reports: Tankless Water Heaters.