Tankless Water Heater Market Size, Share & Trends Analysis Report By Type (Condensing, Non-Condensing), By Product (Electric, Gas), By Application (Residential, Commercial), By Location (Indoor, Outdoor) and By Region (North America, Europe, APAC, Middle East and Africa, LATAM) Forecasts, 2026-2034

Tankless Water Heater Market Size

The global tankless water heater market size was valued at USD 4.77 billion in 2025 and is projected to grow from USD 5.13 billion in 2026 to USD 9.11 billion by 2034, registering a CAGR of 7.45% during the forecast period from 2026 to 2034. Europe dominated the tankless water heater market with a market share of 34.8% in 2025.

Tankless water heaters are an excellently cost-efficient alternative to conventional water heater tanks, in addition to being more energy-efficient than traditional water heater tanks. Tankless water heaters, also called instant, constant flow, tank-less, direct-vent, or flash hot water heaters, are appliances that do not store any water in internal tanks but instead heat large volumes of water quickly by convection from a supply source. Other names for tankless water heaters include instant, constant flow, tankless, direct-vent, or flash hot water heaters. After there, the heat is sent to a network of showerheads, faucets, and bathtubs, where it is used to directly heat the water. Tankless heaters are an excellent choice for situations in which there is either an inadequate supply of natural gas or propane gas or in which there is a concern about the cost of the fuel.

Product Insights

In 2018, electric heaters held the largest market share, and it is projected that this segment would have the most rapid expansion in the years to come. These kinds of heaters are simple to set up and need a lower investment in labor than other kinds. In addition, electric items often have a long lifespan and have low ongoing maintenance and repair costs. When compared to their gas equivalents, these heaters feature a cutting-edge design that makes it possible to place them in a limited amount of space and eliminates the need for ventilation in the process. In addition, electric items call for far less or even no maintenance, in contrast to gas products, which need periodic maintenance performed by qualified personnel. It is anticipated that these features would promote the usefulness of items powered by electricity in comparison to their gas equivalents.

Request Customizationto receive a tailored report.

Application Insights

In 2018, the residential application market had the dominant share of 72.4% of the overall market. The rising popularity of products that save energy and are better for the environment, such as tankless water heaters, is the primary driver that is driving demand for these kinds of items in the domestic market. Additionally, during the forecast period, an increase in the number of residential units because of a growing middle-class population is anticipated to drive the adoption of these solutions, particularly in emerging economies such as India and China.

In addition, increasing quality of living combined with a movement in consumer preference toward goods that are energy efficient, such as tankless water heaters, is anticipated to continue to be a factor that is positive for the expansion of the market. In addition to this, the launch of creative goods is anticipated to pave the way for new opportunities. For example, Rheem's Prestige models have EcoNet Smart Technology, which offers Wi-Fi connectivity and add-on capabilities that give system security, control, and monetary savings. This technology is available in all of Rheem's models.

From 2019 to 2025, the market for commercial applications will rise at a compound annual growth rate (CAGR) of 7.8%. Over the course of the forecast period, an important driver that is projected to drive demand for tankless water heaters is anticipated to be increasing product visibility of new products. For example, the tankless water heater offered by Intellihot not only eliminates energy waste and the associated negative environmental effect, but it also reduces greenhouse gas emissions by more than 40%.

In addition, the tankless system includes two years of remote monitoring 24 hours a day, seven days a week, with serviceable components being sent onsite in advance. This feature contributes to the increased use of these systems in the business sector. The need for tankless water heaters is expected to be fueled by an increase in the number of commercial buildings because of the expansion of the tourist sector. In addition, the demand for hot water across restaurants, hotels, and resorts is expected to increase. Increasing awareness and severe government rules on the use of energy-efficient and environmentally friendly water heaters across government buildings and hospitals would lead to an increase in demand during the projected period.

Speak to an Analystto discuss market opportunities.

Regional Analysis

As a result of increased manufacturing adoption and a movement in customer demand toward more energy-efficient and cost-effective products, Europe maintained the largest market share in 2018. In addition, growing demand from commercial establishments such as restaurants, hotels, and hospitals is anticipated to have a beneficial influence on the expansion of the market. In addition, a growing number of nations, like Switzerland, Germany, and the United Kingdom, are adopting tankless water heaters, which is driving up demand in the region.

From 2019 to 2025, it is predicted that growth in North America will occur at a CAGR that is the highest, at 10.7%. Over the course of the projection period, one of the most important factors that will be driving demand for tankless water heaters is an increased awareness connected to ecological products, together with an increase in product visibility. In addition, the presence of significant competitors in the area is anticipated to drive demand for tankless water heaters in the years to come.

Unlock Regional Insightsto access country-level data, & regional trends.

List of Key and Emerging Players in Tankless Water Heater Market