On the other side, if you decide to purchase a gas-fired water heater, there are a couple of gas type and venting requirements you need to consider, like your house's gas type - propane or natural gas. Consult an authorized electrician to be sure that you know the specs of your house systems. Make sure that you have a circuit available that will handle the tankless water heater. So make sure that your house electricity system can manage the water heater you're going for. Most of the devices will vary from 110V to 277V each model has different requirements. If you decide to stick with an electric tankless water heater, analyze the amperage, voltage, and circuit breaker requirements carefully before buying. What Are The Different Types of Tankless Water Heaters? Electric We will briefly explain how a tankless water heater works, explain what you need to know before you purchase one, and let you in on the units' operating features so you're fully equipped to make an informed decision. The purpose for which the water heater will be usedīelow is our guide to tankless water heaters.The mounting position, size, and water flow each unit offers.The type of fuel that the water heater will utilize.What Should A Person Know Before They Purchase A Tankless Water Heater?īefore you even pick a tankless water heater, it is quite essential to consider the following: But there are dozens of different models and sizes available, so in order to pick the best tankless hot water heating unit or system, you will need to keep in mind a few critical factors before finalizing your purchase. We were able to choose the best tankless water heater by the typical needs of an average person. How Did We Pick the Best Tankless Water Heater?