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All You Need to Know about the Best Tankless Water Heaters

Warm water is essential in the house, and getting the best tankless water heaters is recommended. Tankless water heaters provide you with much required hot water as you need it. This ends up saving you money in the long run. They heat the water directly as you need it, and a water tank is not required. This ensures there is a continuous supply of hot water as needed. This is mostly helpful in places such as the bathroom, hot tubs, booster for dishwasher, clothing washers and other appliances, as well as solar heating systems.

How they work

Traditional heating systems hold water in a tank where they heat it. However, a tankless water heater heats the water on demand, which reduces the loss of water on demand. When you turn on the cold water, it travels via a pipe into the unit. The water is then heated through an electric or a gas burner, ensuring a constant supply of hot water. You can go through tankless water heater reviews to get the best heater.


  • Instant hot waters: Once cold water is flushed out, there is a constant supply of hot water.
  • Saves space: The best tankless water heaters are much smaller than traditional bulk systems. They are mostly mounted on the wall, which saves space.
  • Eliminating standby loss: Traditional systems reheat water repeatedly, which increases the cost of energy. It does this continuously, even when no one is home. A tankless water heater eliminates this standby loss.
  • The hot water does not run out: A traditional unit can run out of hot water in a house with heavy usage. A tankless water heater ensures that there is a constant supply of hot water in the house.
  • Warranties: Most brands offer longer warranty duration for a tankless water heater. This ensures that all repairs or replacements are covered if anything goes wrong.
  • Suitable for smaller homes with low hot water consumption needs. This water heater will eliminate stand by loss while providing instant hot water for your needs.
  • Tankless water heaters are also available in both electric and gas models. This ensures that it suits your home’s electrical infrastructure.

After going through tankless water heater reviews, you may decide to install it in your house. However, there are various factors that you need to consider before installing it in your home. These are:

  • Size: The tankless water heaters are rated depending on the possible maximum temperature at a given water flow rate. You need to assess the flow rate and temperature rise to determine the best size for your water heater. You can do this by determining the number of devices you will be using at a given time.
  • Fuel type: You will need to select the fuel type for your water heater, which could be gas or electric. If it is gas, you will need to consider gas line compatibility. You need to ensure that your current gas line can provide sufficient gas for your system. Electrical power is also considered as even gas tankless water heaters will still use electricity to power some functions.
  • Cost: This is also another factor that you can consider. Gas tankless water heaters are a bit more expensive. However, they are more efficient.
  • Ventilation: There are different ventilation requirements for tankless water heaters. This heater can have two forms of vents. Direct-vent work by pulling air from the environment outside the home. This usually requires an exhaust and intake vent. Power-vent, which works by using the indoor air for combustion and the exhaust vent to the outside of the house. Stainless steel material that is not prone to corrosion is gas-tight, which prevents leaking of carbon monoxide.
  • Location: Where the tankless water heater is going to be mounted is a factor that you need to review. Ventilation can decide where it will be mounted. The power-vent type of ventilation requires that the water heater is stored in a spacious room with vents and satisfactory airflow. Small size tankless water heaters are suitable for a small home.

You can choose from three types of the best tankless water heaters. These are the condensing, non-condensing as well as hybrids. In as much as they offer various benefits to the home, there are a few disadvantages of using a tankless water heater. These are:

  • Inconsistent temperatures: When the water heater is required to supply multiple outlets at the same time, there may be inconsistency in temperatures.
  • Initial cost: They initial cost of purchase and installing the unit is high.
  • Limited hot water supply: Tankless water heaters provide a steady supply of hot water. However, some models have a limit of the gallons they can heat at a given time. This means that it may fail to keep up when the requirements for hot water varies.