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Rinnai tankless water heater — Longmont, CO

Looking for rinnai tankless water heater in Longmont, CO? Call WaterHeater Pros for a contact a provider — no obligation. Licensed plumbers serve Longmont and the surrounding area, and you'll get straight answers on timing and what affects the price.

Last updated: September 24, 2026

Need help right now? If your water heater is leaking or you have no hot water, don't wait for the problem to get worse. Water damage can happen quickly, so it is best to address the issue right now. We have local technicians ready to help you get things back to normal. Licensed, independent service providers serve your area — call now for a contact a provider. (978) 759-4817

What affects the price

The final price for a new water heater depends on a few moving parts. First, you have to choose the right fuel source—gas or electric—and decide if you want to stick with a standard tank or upgrade to a tankless model. We also look at the physical space where it sits and whether your current venting or gas lines meet modern safety codes. If we need to move the unit or upgrade plumbing to get it up to speed, that shifts the labor involved. Exact pricing confirmed free on the call.

About this service

A Rinnai tankless unit heats water only when you turn on the tap, rather than storing it in a large tank. This is a great choice if you want to save space or stop running out of hot water during long showers. These systems are highly durable, though the final cost depends on your home's gas line capacity and venting requirements. We can evaluate your setup and provide exact pricing confirmed free on the call.

While you might not think about hot water as much in the summer, it is a great time to evaluate your system’s health. Because the incoming groundwater is warmer, your heater doesn't have to work as hard, making it a stress-free window to replace an aging unit before you hit the busy autumn season.

Frequently asked in Longmont

What are the benefits of a hot water heater?

A properly functioning hot water heater is essential for daily comfort and hygiene in any Longmont home. It provides hot water for showering, laundry, dishwashing, and sanitation. Modern units, including energy-efficient models and tankless systems, can also significantly reduce utility bills by consuming less energy to heat water. Ensuring your water heater is well-maintained or replaced when necessary guarantees consistent access to hot water and prevents unexpected disruptions, contributing to a more comfortable and convenient living environment.

What are the advantages of Energy Star water heaters?

Energy Star certified water heaters, available for various types including tankless and storage tank models, are designed for superior energy efficiency. This certification indicates that the unit meets strict energy performance standards set by the U.S. Environmental Protection Agency. For Longmont residents, this translates to lower monthly utility bills and a reduced environmental footprint. By consuming less energy to heat water, these units offer long-term cost savings and contribute to a more sustainable household operation, making them a wise investment.

What is the typical cost for tankless water heater installation?
When should I consider an electric tankless water heater?

Electric tankless water heaters can be a suitable option for Longmont homes where natural gas is not available or where space is extremely limited. They offer on-demand hot water heating, eliminating standby energy losses. However, it's important to note that electric models typically have lower flow rates compared to gas units and may require significant electrical upgrades to your home's panel to handle the higher amperage draw. A professional assessment is crucial to determine if an electric tankless unit is the right fit for your hot water demands.

Are RV water heaters different from home units?

Yes, RV water heaters are specifically designed for the unique constraints of recreational vehicles. They are typically smaller, more compact, and often operate on propane or a combination of propane and electricity to conserve space and energy. While the principle of heating water is the same, the components and installation differ significantly from residential units. If you're experiencing issues with your RV water heater, it's best to consult with a specialist familiar with these specialized appliances, rather than a standard residential water heater technician.

What is included in the tankless water heater and installation cost?
What are the benefits of a Navien tankless water heater?

Navien tankless water heaters are known for their advanced technology, high efficiency, and user-friendly features. Many models offer ultra-high efficiency ratings, leading to significant energy savings for Longmont homeowners. They provide continuous hot water on demand, reducing the likelihood of running out. Navien units often come with sophisticated control panels and robust warranties, offering reliability and peace of mind. When considering a Navien, professionals will assess your home's specific hot water needs to ensure optimal sizing and performance.

Also serving nearby: Boulder · Thornton · Westminster · Arvada · Greeley

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More on this: DOE water heating — efficiency and sizing.

Service area details

98,630residents
3,396per sq mile
4ZIP codes served

Serving all of Longmont — population 98,630; about 3,396 residents per square mile across 29.0 sq mi. ZIP codes covered include 80501, 80502, 80503, 80504.

Neighborhoods served in Longmont: Prospect, Old Town, Downtown Longmont, Mountain View Estates, Columbine — and every surrounding area.

Areas we serve

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