Tankless water heaters have gained popularity in recent years due to their energy efficiency, space-saving design, and continuous hot water supply. One common concern when considering their installation is whether they can be mounted on an exterior wall. In this article, we will explore whether it is possible to install a tankless water heater on an exterior wall and discuss some important considerations for such an installation.
Understanding Tankless Water Heaters
Before delving into the possibility of installing a tankless water heater on an exterior wall, it is important to understand how these systems work. Unlike traditional water heaters, tankless models do not store hot water in a large tank. Instead, they heat water on demand as it flows through a heat exchanger. This means that hot water is readily available whenever you need it, eliminating the need for a storage tank.
Advantages of Exterior Wall Installation
Installing a tankless water heater on an exterior wall has its advantages. Firstly, it saves valuable space inside your home, as these units are typically compact and do not require a significant amount of room. Mounting it on an exterior wall frees up valuable square footage that can be utilized for other purposes.
Secondly, an exterior wall installation allows for easier access to the unit for maintenance and repairs. You can simply step outside to troubleshoot any issues or perform routine maintenance tasks without having to navigate through your home or basement.
Factors to Consider
While installing a tankless water heater on an exterior wall is possible, there are several important factors to consider before proceeding with the installation.
1. Climate and Freeze Protection:
One significant consideration is the climate in your area. If you live in an area where the temperatures frequently drop below freezing, it is crucial to ensure that adequate freeze protection is provided for the unit. Tankless water heaters are sensitive to freezing temperatures, and without proper insulation or heat tracing, they may become damaged. Consult with a professional plumber or your unit’s manufacturer to determine the necessary precautions for your specific situation.
2. Venting Requirements:
Proper venting is essential for the operation and safety of a tankless water heater. These units produce exhaust gases that need to be safely released outdoors. When installing an exterior wall-mounted unit, ensure that you comply with the necessary venting requirements. This may involve installing an exterior vent or utilizing an existing chimney or flue system.
3. Wall Structure and Support:
Another consideration is the structural integrity of the exterior wall. Tankless water heaters can be heavy, ranging from around 40 to 90 pounds. As such, ensure that the wall can safely support the weight of the unit. If necessary, consult with a professional to assess the wall’s strength or reinforce it if required.
4. Distance from Fixtures:
Consider the proximity of the water heater to the fixtures it will serve. The closer the unit is to the faucets and showers, the shorter the wait time for hot water. Carefully plan the placement of the heater to minimize any potential delays in hot water delivery.
Consulting with a Professional
When considering the installation of a tankless water heater on an exterior wall, it is highly recommended to consult with a professional plumber or HVAC technician. They can evaluate your home’s specific requirements, offer advice, and ensure that the installation is carried out safely and efficiently.
It is possible to install a tankless water heater on an exterior wall, provided that important factors are considered. Climate and freeze protection, venting requirements, wall structure, and proximity to fixtures all play key roles in determining the suitability of such an installation. By seeking guidance from a professional and adhering to manufacturer recommendations, you can enjoy the benefits of energy-efficient, space-saving, and continuous hot water supply offered by a tankless water heater mounted on an exterior wall.