If you are in the market for a tankless water heater and want some help deciding if you should go for a gas powered or electric powered unit, this article is for you!
There are advantages and disadvantages of both and we will explore them in depth so you can make the right choice. If you need help buying a tankless water heater, check out this guide.
Gas powered units in general are much more powerful than electric, in terms of maximum flow rates and maximum temperature rise. Of course, they use more energy and produce emissions that will require ventilation and a natural gas hook up. Currently, the cost of natural gas is cheaper than electricity (check out this calculator to prove it) so that additional energy is negated with lowered cost. Gas powered units are much more expensive up-front and require professional installation since you will need to hook up natural gas.
Electric tankless water heaters are smaller and less expensive than gas powered units. Usually, they are best suited for providing hot water to a single room, instead of an entire house. Their flow rates will range from 1 GPM to 4.0 GPM and will be able to raise temperature between 20F – 40F for the most part. If you only need to provide hot water for a single room in the house, you can definitely use electric. If you want to use electric for your entire house, you will need to purchase and install multiple units to achieve it. Currently, there is no electric tankless water heater capable of providing hot water for the average American household.
For most households, a Gas powered unit is going to be the logical choice. If however you don’t have access to natural gas, or electricity is especially cheap for you (or you have an offgrid setup), you may want to consider going with electric.