Size Guide for Water Heaters
To tank or not to tank? A tankless water heater can be more expensive initially but will provide you with an unlimited supply of hot water. Tankless units use coils to heat water meaning there is always a supply to your home. The only downside is that modern units can only handle ~10 gallons a minute and for reference, most showers flow at around 2 gallons per minute so for a small family or home this can be a perfect solution. Storage tanks, on the other hand, have a lower cost, but only supply a limited amount of water. Having a larger tank will fix this problem. A good rule of thumb is 30 gallons per 2 people. So a family of 4 should be very comfortable with a 60-gallon unit, but could also get by with a slightly smaller one.