You should try to get the best tankless water heater so that it works neatly and effortless for your specific needs. There are many factors you should consider to ensure that the heater you are buying is the best or not. One very important factor is the size of the tankless water heater. Are you looking for what size tankless water heater do i need? Read more on Tanklesshome.
The importance of the right sized tankless water heater
A small water heater will give less water and if it is too big, then you may get more hot water but the energy consumption will also be higher. Thus, you need to find what size is right for your home. There are many factors to help you choose the right sized water heater for your home. These factors are taken into account as per the hot water requirements of your home.
Factors to help you choose the right size of tankless water heater
The flow rate: While buying a tankless water heater, you should first find the flow rate. This can be calculated in a simple manner. All you have to do is find the number of devices you want to work and then find the total flow rate. If you want to run the shower and the kitchen tap at the same time, and each flow rate is say, 2.6 and 0.75, then the flow rate of the water heater will have to be (2.6+0.75) 3.35 or around that figure.
The temperature rise: Calculating the temperature rise is another factor that will help you finding the right sized tankless water heater. The temperature rise is calculated by subtracting the temperature of the hot water from the temperature of the cold water, that is, the difference between the output and the input. Thus, if the water is to be heated to around 105°, then the water heater should have at least 55° as the temperature rise.
The hot water requirement: The amount of hot water you will need is what will determine what kind of tankless water heater you will need. That is the basis of the flow rate calculation. The tankless water heaters come in compact sizes and also do not consume lot of energy. So, if you have a large family and multiple bathrooms, you will need more water. In such a case, it is best to have multiple water heaters as well. Thus, size is something then you do not have to bother about. But at the same time, you will still want to calculate the flow rate and temperature rise, because that will ensure smooth working of your water heaters and the assurance that you will get the required hot water as and when you need it.
Climate: The climate of the place you live in is what will aptly decide the temperature rise. If it is a cold area, then there will be a vast difference but if it is relatively a warmer area, then the temperature rise will differ as well. In cold regions, powerful water heaters are required whereas in warmer regions, you do not need too much hot water and also there is no need to heat water a lot. You can at such time adjust the temperature so that energy consumption is less.