Average Cost Tankless Water Heater Installation: A Comprehensive Guide

Tankless water heaters have gained popularity due to their energy efficiency and compact design. Unlike traditional storage tank water heaters, tankless units heat water only when needed, eliminating standby energy losses. This results in lower utility bills and a reduced environmental footprint. However, the upfront cost of installation can be higher, making it essential for homeowners to understand the pricing factors involved.
Factors Affecting Tankless Water Heater Installation Costs
The total cost of installing a tankless water heater depends on several variables. Below are the key factors that influence pricing:
- Unit Type: Electric tankless water heaters typically cost between $500 and $1,500, while gas models range from $1,000 to $3,000.
- Labor Costs: Professional installation fees vary by region but generally fall between $800 and $1,500.
- Fuel Source: Gas units require proper venting and gas line modifications, adding to the installation cost.
- Electrical Upgrades: Electric models may need upgraded wiring or circuit breakers, increasing expenses.
- Retrofitting: Converting from a traditional to a tankless system may involve additional plumbing work.
Popular Tankless Water Heater Brands and Models
Several reputable brands offer high-quality tankless water heaters. Below is a comparison of popular models and their average installation costs:
| Brand | Model | Type | Unit Cost ($) | Installation Cost ($) |
|---|---|---|---|---|
| Rinnai | RU199iN | Gas | 1,200 – 1,800 | 1,000 – 1,500 |
| EcoSmart | ECO 27 | Electric | 500 – 700 | 800 – 1,200 |
| Navien | NPE-240A | Gas | 1,500 – 2,000 | 1,200 – 1,800 |
| Stiebel Eltron | Tempra 36 Plus | Electric | 1,000 – 1,300 | 900 – 1,400 |
Long-Term Savings and Energy Efficiency
While the initial investment in a tankless water heater is higher, the long-term savings can be substantial. Tankless units are up to 34% more energy-efficient than traditional storage tank heaters, according to the U.S. Department of Energy. Homeowners can expect to save between $100 and $300 annually on energy bills, depending on usage patterns and local utility rates.
Additionally, tankless water heaters have a longer lifespan, often lasting 20 years or more with proper maintenance. This contrasts with traditional units, which typically need replacement every 10 to 15 years. The combination of energy savings and durability makes tankless water heaters a cost-effective choice over time.
References
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