Tankless water heaters provide an energy-efficient method of hot water supply in your home. Storage water heaters hold water in the tank and use energy to keep it warm. A tankless water heater draws in the water that it needs, heats it up quickly and sends it on to the faucet or appliance that needs hot water.
Tankless heaters can provide hot water for much longer than storage water heaters — a real bonus if you’ve ever been in the middle of a shower when your hot water ran out.
One question that many people have is whether one heater will be enough. Since a tankless water heater heats water on demand, there is a limit to how much water it can put out at any given time. In most cases, a tankless heater can produce between 2 and 5 gallons of water per minute. If you’re running your dishwasher and washing machine and you decide to take a hot shower, you might find that you don’t have enough hot water to go around.
One solution to this problem is to install more than one tankless heater. Some people find that a dedicated water heater for appliances that have heavy hot water use can solve the problem of running out of hot water when you need it. For example, washing machines, dishwashers or hot tubs might get a separate water heater from the one used to heat water coming from the faucets. Any bathroom that is in a remote location from the main water heater might also benefit from its own tankless heater.
Installing tankless water heaters can improve the overall efficiency of your home. According to the Department of Energy, a home with heavy hot water usage can see from 8 to 14 percent more energy efficiency, while a home with less usage will see 24 to 34 percent more efficiency. This amount can grow as high as 50 percent when additional heaters are installed.
If you are in the Sacramento area and have questions about tankless water heaters or any other HVAC issues, contact All Year Heating, Air Conditioning & Solar. We’re always happy to help.
Our goal is to help educate our customers about energy and home comfort issues (specific to HVAC systems). For more information about other HVAC topics, download our free Home Comfort Resource guide.
Hot shower image via Shutterstock