When you go into Amazon.com, if you do a search for “Residential Water Heater”, and then filter results by the highest rated offerings, you’ll find that the first page only features one or two non-tankless water heating options.
There are no hybrids here, there are very few natural gas or electric tankless water-heating options either. Reviewers prefer tankless water heaters because they’re cheaper and more energy efficient, so the following three reviews are of that type of water heater in the best-rated brands.
Top Residential Water Heater to Buy
Ecosmart’s entry on the list comes with a lifetime warranty for residential use, which definitely is a factor that has gotten it very positively reviewed. You can also save as much with this little device as you can with a hybrid water heater that uses electricity and natural gas, as the Ecosmart will allow you to save 60% on water heating costs.
The Ecosmart Tankless Water Heater includes patented self-modulating technology, so that you don’t have to worry about it going on the fritz while you’re gone. The manufacturer proudly boasts users will never run out of hot water, and at the same time can save up to twelve cubic feet of storage space.
Temperature can be set at one degree increments just like a thermostat, which allows you to really keep a bead on how hot the water in your home is, and not have to balance the flow. Imagine never getting scalded again, because the water is always at the perfect hot temperature.
Ecosmart’s Smart Technology heater is engineered to be what’s termed the “whole home” model. It is designed for climates where incoming water is 62 degrees Fahrenheit or above. It can heat up to 2.5 gallons a minute, which is about the equivalent of a shower, or the filling up of a sink.
With tankless water heaters, they are sized with a basis in the rate of flow and the rate of temperature rise, as between the two exists a very direct relationship. Used in colder areas, electric tankless water heaters still heat the water well, but it may not have quite as good of an output rating.
Best Outdoor Tankless Natural Gas Water Heater
First, the Rheem Low Nox Outdoor Tankless Natural Gas Water Heater one isn’t electric, but runs on natural gas. Second, it is outdoor; which saves more space than either indoor tank-based or tankless water heaters. It boasts an output of 6.4 gallons a minute at a degree increase of 35, Fahrenheit. It also features a remote control and about 10 feet of thermostat wire.
It is designed specifically as a residential water heater, and also has the boast of giving the user the freedom to never run out of hot water again. It uses next generation burner technology, and the manufacturer says this machine is the best in the industry. It has a higher output yield than the Ecosmart, so if that’s what is attractive to you, this is the better buy.
Best Rated Water Heater for the Money
Last but certainly not least is the Rinnai Propane Tankless Water Heater. This beast offers an output of 9.4 gallons per minute, which is certainly the highest on this list. It operates at between 10,300 and 199,000 BTUs, and comes standard with a digital controller of the MC-91-1US variety that includes an error code indicator.
It has a thermal efficiency rating of 83%, and the temperature can bet set between 98 and 140 degrees Fahrenheit. That’s for residential use, though that temperature setting can be yanked up to 185 degrees Fahrenheit for commercial use. It is rated at a degree increase of 30 degrees Fahrenheit for up to five plumbing/appliance outlets at the 9.4 gallons per minute rate.
Rinnai means it when they say you’ll never run out of hot water. NEVER! And that’s what you want, isn’t it? That should be par for the course with a hot water heater, it seems.
Furthermore this machine boasts exceptional energy efficiency, which leads to lower energy costs. As well, there is extreme simplicity in this device’s exterior installation, and it qualifies for federal tax credit A, which very few water heaters do. Certainly not the other offerings on this list. As a tankless water heater, it really reduces waste because it only heats water as the hot water is needed. That’s par for the course on all three of these heaters, actually; and one of the chief offerings tankless water heaters can boast, beyond being space-saving and long-lasting.
However it’s not quite as energy efficient as the other entries in this list, only saving you 40% on energy costs annually. Though this device has been Energy Star qualified for installation in mobile homes.
In the end, tankless water heating solutions aren’t the only residential water heating options out there, but according to Amazon.com, they are the most well-reviewed. This is in large part because of their inexpensiveness and simplicity.
Most of them will only cost you about half the price of an equally functional analogue in the tanked heater realm. But tankless heaters are often much more reliable, and certainly have fewer maintenance related issues, as they don’t have nearly the confusion which comes from a multitude of moving parts.
These do indeed seem to be the best residential water-heating options on the market right now.