Quiz: Do you know how to choose the best water heater for home?
by Staff
Arriving home after your workout, you head to the shower, knowing you'll have plenty of hot water, regardless of how many family members preceded you. Aren't you glad you took our quiz to learn all there is to know about choosing a water heater?

Which of the following water heating sources is the most efficient?

  • heat pump
  • coal
  • electricity

On average, how long will a conventional water heater with a storage tank last?

  • 10 years
  • 15 years
  • 20 years

What is one of the advantages of an electric water heater over units that burn fuel?

  • Electric heaters cost less than other types.
  • They are smaller in size than other types.
  • They heat water faster than other types.

Which of the following water heating sources is the least efficient?

  • electricity
  • natural gas
  • coal

What should you be sure you have plenty of before considering buying a solar water heater?

  • intermittent rain
  • very hot weather
  • abundant sunshine

What do natural gas water heaters need in addition to a gas supply?

  • a lot of space
  • a venting system
  • a large air intake

What is a disadvantage of a heat pump water heater?

  • They cost more.
  • They run constantly.
  • They are noisy.

About how much water is used during a shower?

  • 12 gallons (45 liters )
  • 15 gallons (57 liters)
  • 18 gallons (68 liters)

What size capacity water heater would a four-person household likely require?

  • 30 to 40 gallons (113 to 151 liters)
  • 40 to 50 gallons (151 to 189 liters)
  • 50 to 60 gallons (189 to 227 liters)

What triggers a tankless water heater to begin heating water?

  • thermostat
  • water pressure
  • turning on a hot water tap

What is one advantage of tankless water heaters?

  • They are portable.
  • They operate only when needed.
  • They are much quieter to operate.

Approximately how much can you save on your water heating bill with a tankless water heater?

  • 20 percent
  • 30 percent
  • 40 percent

What is one disadvantage of a whole-house tankless water heater?

  • The installation is expensive.
  • The maintenance costs are high.
  • They use a lot of floor space.

On average, how long do tankless water heaters last?

  • 10 to 12 years
  • 15 to 20 years
  • 25 to 30 years

In the U.S., what is the best way to check the efficiency of any appliance?

  • Check the capacity printed on the unit.
  • Check the Energy Star sticker on the unit.
  • Check the user manual supplied by the manufacturer.

How do you determine the efficiency of a water heater from its Energy Star label?

  • Look for the energy factor.
  • Look for the first-hour rating.
  • Look for the heating index.

Rather than going from store to store to compare labels, where could you find a chart of energy factor (EF) ratings for various appliances?

  • Check a list that is available online.
  • Ask a salesperson for a list.
  • A list is posted at every store.

How is recovery rate displayed on the Energy Star sticker?

  • energy factor rating
  • time factor rating
  • first hour rating

What are two important factors for sizing storage tank heaters?

  • cycle time and recovery rate
  • storage capacity and recovery rate
  • storage capacity and floor space used

What model would you shop for if you have low ceilings where you plan to install a water heater?

  • compact
  • lowboy
  • half-size