- 1 What is the downside of a tankless water heater?
- 2 How long does it take for a tankless water heater to pay for itself?
- 3 Does tankless water heater save energy?
- 4 How much does a tankless water heater increase home value?
- 5 Can you run out of hot water with a tankless water heater?
- 6 Is it worth switching to a tankless water heater?
- 7 What size tankless water heater do I need for a family of 5?
- 8 Why are tankless water heaters so expensive to install?
- 9 Can a tankless water heater work for the whole-house?
- 10 How do I know what size tankless water heater I need?
- 11 Why does my tankless hot water heater go cold?
- 12 What is the best brand for tankless water heaters?
- 13 How much does it cost to install a tankless water heater?
- 14 How heavy is a tankless water heater?
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.
How long does it take for a tankless water heater to pay for itself?
The payback period for a gas tankless heater is 22 to 27 years, while the payback period for an electric one is between 12 and 20 years. It takes 20 to 25 years for a tankless water heater to last.
Does tankless water heater save energy?
Tankless heaters can be 24-34% more energy-efficient than regular water heaters for households that use 41 gallons or fewer of hot water daily. Tankless heaters can be 8-14% more energy-efficient for households that use around 86 gallons daily.
How much does a tankless water heater increase home value?
If you are looking to increase the value of your home, adding a tankless water heater to your features is a great place to start. According to a study conducted by Zillow, homes with tankless water heaters sold for 4% more than their expected value. On average, these homes also sold 43 days faster than expected.
Can you run out of hot water with a tankless water heater?
With a tankless system, there isn’t a supply of hot water that can be depleted. Instead, the water heater heats up water as there is a demand for it. It will keep doing this as long as there is demand – and that means you won’t run out of hot water!
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. Because they don’t waste power, you can also enjoy the fact that your home will be more sustainable and eco-friendly.
What size tankless water heater do I need for a family of 5?
In short, a family of 5 would need a 10 GPM gas tankless heater or 27 kW electric tankless heater if you live in the northern part of the USA, where the input water has a lower temperature. The tankless heater has to work extra hard to bring the water temperature up to 110˚F or 120˚F.
Why are tankless water heaters so expensive to install?
Tankless water heaters can be expensive to install compared to storage tank water heaters, and this is because they often use pipes that are a different diameter and have special ventilation requirements.
Can a tankless water heater work for the whole-house?
A whole-house tankless water heater is built to provide continuous hot water whenever you need it. Both tank and tankless whole-house water heaters have their advantages. Tank-type water heaters have a lower upfront cost and are often easier to install when replacing a similar type tank water heater.
How do I know what size tankless water heater I need?
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.
Why does my tankless hot water heater go cold?
Another problem that tankless water heaters can run into is that of a cold water sandwich—a plumbing term given to sudden temperature fluctuations, when your tankless water heater produces hot and cold water intermittently. This can be caused by: A dirty water filter on the cold water inlet.
What is the best brand for tankless water heaters?
Best tankless water heaters
- Best overall: Rinnai RUR160iN Water Heater. Courtesy of Amazon.
- Editor’s pick: Rinnai RU130iN. Courtesy of Amazon.
- Best for low prices: EcoSmart Eco 18 Electric Tankless Water Heater. Courtesy of Amazon.
- Best electric tankless water heater: Rheem RTEX-24.
- Best point-of-use heater: Bosch Tronic 3000.
How much does it cost to install a tankless water heater?
The gas tankless water heater installation cost would be in the $1200 to $3000 range if switching from electric to gas. You do save about $250 because you do not need a tempering valve installed with a gas tankless water heater installation.
How heavy is a tankless water heater?
A tankless water heater typically weighs about 25 pounds and can be mounted on a wall, taking up about two square feet of space.