Tankless Water Heater

6 Responses to “I Am Considering A Tankless Water Heater. How Long Does It Take To Flow Hot Water When You Turn On The Shower?”

1. Icon
   February 4th, 2010 @ 11:33 pm

   As long as it takes to move the water through the pipe from the tankless heater to the shower head.
   Same as a standard tank.

2. gizmoe
   February 5th, 2010 @ 2:27 am

   see
   http://www.bchydro.com
   where there is an article about the pros and cons of these heaters. Flow rates may limit the number of places hot water will come out at the same time. Also there are other energy considerations involved. It might help you decide what is best.

3. witness protection
   February 5th, 2010 @ 9:26 am

   My mom installed a tankless water heater in her house. Electric. Takes a very long time for hot water to get to any faucet. The water has to be heated when the hot water faucet is turned on, so it takes a few minutes to get the water to an acceptable level. Not instant. Like when you heat water on the stove. It’s not 125 degrees as soon as you turn on the burner. Takes a while.
   Gas heaters are supposed to be quicker heating.

4. go redwings
   February 5th, 2010 @ 12:10 pm

   not long cause its tank less the hot waters already in the lines! hope this helps.

5. Beautifully Dazed
   February 5th, 2010 @ 2:58 pm

   Tankless Water Heaters, also called Instantaneous or Demand Water Heaters, provide hot water only as it is needed. Traditional storage water heaters produce standby energy losses that cost you money. We do not leave our homes heated while vacationing. We only heat our homes when there is a demand for heat. In the same way, a Tankless Water Heater is used only when there is a demand for hot water.
   When a hot water tap is turned on, cold water travels through a pipe into the unit. In an electric Tankless Water Heater an electric element heats the water. In a gas-fired Tankless Water Heater a gas burner heats the water. As a result, Tankless Water Heaters deliver a constant supply of hot water. You don’t need to wait for a storage tank to fill up with enough hot water. Typically, Tankless Water Heaters provide hot water at a rate of 2 – 5 gallons (7.6 – 15.2 liters) per minute. Typically, gas-fired Tankless Water Heaters will produce higher flow rates than electric Tankless Water Heaters. Some smaller Tankless Water Heaters, however, cannot supply enough hot water for simultaneous, multiple uses in large households. For example, taking a shower and running the dishwasher at the same time can stretch a Tankless Water Heater to its limit. To overcome this problem, you can install a “whole house” type Tankless Water Heater or install two or more Tankless Water Heaters, connected in parallel for simultaneous demands of hot water. You can also install separate Tankless Water Heaters for appliances—such as a clothes washer or dishwater—that use a lot of hot water in your home.
   For homes that use 41 gallons or less of hot water daily, Tankless Water Heaters can be 24% – 34% more energy efficient than conventional storage tank water heaters. They can be 8% – 14% more energy efficient for homes that use a lot of hot water, around 86 gallons per day. You can achieve an even greater energy savings of 27% – 50% if you install a Tankless Water Heater at each hot water outlet.

6. John
   February 10th, 2010 @ 12:57 am

   This web site has a calculator which lets you calculate how long a shower with a hot water tank will last.
   http://crazycalculations.com/water_tanks/

   A good system would be an instantaneous electric water heater but they use 11kw so you have to have good wiring in the house to take the load. My parents have one. The flow is not very strong but it’s OK.

Leave a Reply