Wall-mounted water heaters also called tankless water heaters or inline water heaters have become more popular due to the potentially vast energy savings possible as well as the ability to maintain a continual supply of hot water above that which can be achieved with a standard tank system.
These units are often mounted to the wall and they can be used as a centralized system or individual units can be utilized at the point of use (POU) or they can be installed using a variation or hybrid of both POU systems or centralized system. They can be more expensive than a standard hot water heater but this is offset by the longer term savings in energy and water.
On-demand Hot Water
While the efficiency of the tankless system is often used as the biggest selling point, the fact that with a tankless system, you don’t run out of hot water in the middle of your shower is the important feature. Tankless systems use a recirculation system combined with a heat exchanger and sensors to heat the water in the pipe so that it continually provides consistent temperature hot water. For residential use, this means that up to 140 degrees F water can be continually supplied to your faucet. However, this can depend on how large is the home, the system size and how many are attempting to use the hot water at the same time.
For a small to medium sized home, a centralized system with a single, high capacity tankless system will work fine. Those with larger homes, 2500 square feet or larger, will need a hybrid system or POU systems to provide the hot water as needed. Tankless systems can always be expanded as the need arises as well, such as when a remodel takes place or a new addition is made. Combined with the 80 percent and better energy efficiency, this is why most people are switching to the tankless hot water system.
Five Great Wall-Mounted Tankless Hot Water Systems
Best Condensing Tankless Natural Gas Water Heater
Designed to be indoors and hung on the wall, this water heater – EcoSmart Model #ECO 27 Electric Tankless Water Heater can be used as a centralized system for a home or used in a hybrid home along with multiple POUs. It does require three, 40 amp breakers and thus requires three separate circuits. It is a fully digital system with the capability to regulate the temperature in one-degree implements so you can fine tune the temperature.
It has a six gallon per minute rate which is great for showers and more. One of the best aspects of this model is the fact it doesn’t require venting and thus it can be installed quickly and easily. Those that have this model really enjoy the fact it doesn’t require venting with many using this model as both a POU and a central system.
Best Indoor Tankless Water Heater
Using Natural Gas, and thus requiring venting, this model – Takagi Model #T-KJr2-IN-NG Tankless Water Heater is efficient with a rating of .83. It is a wall mounted unit and it can produce up to 140,000 BTU of heat to easily sustain the 6.6 gallons per minute. This means it can be used as a centralized system or whole home system without the need of POUs.
It can also be used for radiant heating or floor heating and it is easy and quick to install. It comes with a five-year standard warranty and a ten year heat exchanger warranty and it is energy star compliant. Those that have this heater really love just how versatile this model is for their needs.
Top Tankless Water Heater for the Price
The Eccotemp Model #iE-24 Electric Tankless Water Heater is a sleek and compact unit that is wall mounted and it can be used with multiple POUs for larger homes. It doesn’t require venting and the system are specifically designed to reduce sediment build up while also ensuring isolation from the water and the electronics.
It is an all-digital unit with a maximum amp draw of one hundred amps. It uses the internal 240V system. It weighs less than twenty-six pounds so it doesn’t require specialized structural enhancement to place. This model is brand new for the 2017 season.
Best Tankless Propane Water Heater
Perfect for a home with two and a half bathrooms, this model – Rinnai Model #V65IP 6.6 GPM Indoor Low NOx Tankless Water Heater is an indoor, wall-mounted system that uses propane. (NG versions are also available. ) This is a highly efficient model and it is compliant with both California and Texas NOx standards and it is safe to use in the home. It is also certified for being able to be used in mobile homes.
The all-digital controller also has a built in error alert system and it can be expanded with various Rinnai controllers. Those that have this system really low just how much money this model saves them on their energy costs.
Best Wall Mounted Hot Water Heater
Designed and engineered for super efficiency, this model – Rheem Model #RTGH-95XLN Prestige Outdoor Tankless Water Heater is wall mounted outdoors and it uses Natural Gas as a fuel source. With a .96 efficiency rating, this model quickly pays for itself. It is also designed to be a whole home, centralized system with a 9.6 gallon per minute hot water rate.
It has a remote operation and comes with a ten-foot thermostat and it can use PVC for venting, further saving on installation costs. People who have this model are impressed with both the quality of the unit and how well it maintains the water temperature, even over heavy usage.
Be sure to use a qualified technician to install your hot water tankless system.