- 1 How many gallons per minute does a whole-house tankless water heater use?
- 2 Does size of tankless water heater matter?
- 3 What is the downside of a tankless water heater?
- 4 Can a tankless water heater fill a tub?
- 5 Is it worth switching to a tankless water heater?
- 6 Can tankless water heater heat whole house?
- 7 Is 200 amp service enough for tankless water heater?
- 8 What is the best temperature for a tankless water heater?
- 9 How do I choose the right size tankless water heater?
- 10 How long does a tankless water heater last?
- 11 What is the best brand for tankless water heaters?
- 12 What size water heater do I need for a family of 5?
- 13 How much does it cost to switch to a tankless water heater?
How many gallons per minute does a whole-house tankless water heater use?
The model recommended on the chart for your area is based on a desired maximum flow rate of about 3 gallons per minute and should be regarded as the smallest recommended model for a general whole-house residential water heater – selecting a more powerful model will provide higher flow rates.
Does size of tankless water heater matter?
Size matters when it comes to your tankless water heater. In fact, it is the most important part of choosing a new unit for your home. To work properly, a tankless water heater needs to be just the right size to meet your home’s hot water demand.
What is the downside of a tankless water heater?
The primary disadvantage of on demand or instant hot water heaters is the upfront cost. The smaller units that you often see won’t produce enough hot water to serve most households. They’ll only serve one faucet at a time—a problem if you want to shower while the dishwasher is running.
Can a tankless water heater fill a tub?
A small tankless water heater can take a long time to fill a large tub. Two smaller water heaters can do the job of one big water heater.
Is it worth switching to a tankless water heater?
The big advantage of tankless water heaters is that they use less energy since they only heat up water when you need it. You can save hundreds on your energy bill each year. According to Consumer Reports, you should expect to pay about $800 to $1,500 or more to have your tankless water heater installed.
Can tankless water heater heat whole house?
Even in a cold climate, these efficient units can provide both domestic hot water and whole-house heating. Tankless water heaters are a proven technology with a track record of many years for heating DHW (see “Installing On-Demand Water Heaters,” 2/06).
Is 200 amp service enough for tankless water heater?
A: Electric Tankless water heaters usually require substantial and expensive upgrades in your system. This extra load requires at least 120 amps. The average home has a total capacity of 200 amps, which means an upgrade would be needed.
What is the best temperature for a tankless water heater?
You’ll want to shoot for 100-115 degrees Fahrenheit for your water to be heated. If your groundwater temperature is 60 degrees and you want your shower at 110 degrees, that’s going to be a 50-degree rise.
How do I choose the right size tankless water heater?
How to Select the Right Size Tankless Water Heater
- Determine the maximum number of devices you want to run and their total flow rate. Then, add up their flow rates (gallons per minute).
- Determine required temperature rise.
- Sizing Example: An average shower will be between 104–106° and uses 2.6 gallons of water.
How long does a tankless water heater last?
Most tankless water heaters have a life expectancy of more than 20 years. They also have easily replaceable parts that extend their life by many more years. In contrast, storage water heaters last 10–15 years.
What is the best brand for tankless water heaters?
Our Top Picks
- BEST OVERALL: Rinnai RU160iN. The capabilities of the Rinnai RU160iN are impressive.
- RUNNER UP: Rheem 240V Tankless Water Heater.
- BEST ELECTRIC: Stiebel Eltron Tempra 36 Plus Tankless Water Heater.
- BEST PORTABLE: Hike Crew Portable Propane Water Heater.
- BEST POINT OF USE: ECOTOUCH Tankless Water Heater.
What size water heater do I need for a family of 5?
For example, a family of 5 – 7 people may not require a 60 – 80 gallon water heater. In some cases, a family of this size may be able to get by with a 50 – 60 gallon water heater. In addition, a family with 2 members may require a water heater with a water tank that is larger than 30 gallons.
How much does it cost to switch to a tankless water heater?
An electric tankless unit will cost about $500 to $700, roughly the same as a traditional tank model, while the cost of a gas tankless heater runs about $1,000 to $1,200. Beyond the initial cost, the national average for the installation of a tankless unit is slightly over $1,700.