Navien tankless water heater — Thornton, CO
Last updated: September 24, 2026
What affects the price
When you are looking at the price of a new water heater, a few main things shift the final number. The type of unit you choose—whether it is a tank model or a tankless system—is the biggest factor. You also have to consider the fuel source, like gas or electric, and the physical space where the heater sits. If your home needs new venting, updated piping, or a different hookup to meet current safety codes, that adds labor time to the project.
About this service
Navien specializes in high-efficiency condensing tankless technology that extracts heat from exhaust gases to save energy. You should consider this upgrade if you are looking to lower utility bills while maintaining a consistent supply of hot water for multiple bathrooms. Installation involves adjusting gas lines and intake venting.
Even though it is warm outside, your water heater is still working daily. Summer is a great time to adjust your settings, as the incoming water isn't as cold, which can actually help extend the life of your unit. If you are planning a home renovation or just want to upgrade to a more efficient model, call us to talk through your options.
Frequently asked in Thornton
What are the repair costs for a Navien tankless water heater?
What is the general tankless water heater cost?
The general tankless water heater cost involves the price of the unit itself and the installation labor. Factors like the unit's GPM (gallons per minute) capacity, its energy efficiency rating, and brand will affect the initial purchase price. Installation complexity, including any necessary upgrades to gas lines or venting, also plays a role in the overall expense.
What is the tankless hot water heater installation cost?
What makes energy efficient tankless water heaters a good investment?
Energy-efficient tankless water heaters are a smart investment for Thornton homeowners because they significantly reduce energy consumption. They heat water only when needed, eliminating standby heat losses common with tank models. This leads to lower utility bills over time. Their longer lifespan compared to traditional tanks also contributes to their value.
How do I adjust my water heater thermostat?
Adjusting your water heater thermostat is generally straightforward. Locate the dial, often behind a small access panel on the unit. Turn it to your desired temperature setting, typically recommended at 120°F to prevent scalding. If you're unsure or uncomfortable, a specialist can safely make the adjustment for you. Always consult your owner's manual.
What are the signs my water heater is leaking?
If you notice water pooling around the base of your water heater, it's a sign of a leak. This could be from a cracked tank, a faulty valve, or a loose pipe connection. Rust streaks running down the side of the tank or dampness on the ceiling below the unit also indicate a problem. Prompt attention is crucial to prevent further damage.
Can I get my RV water heater serviced in Thornton?
Yes, RV water heater services are available for residents in the Thornton area. Specialists can diagnose and repair issues specific to recreational vehicle water heating systems. This includes checking propane connections, water lines, and the heating element. Ensuring your RV's hot water system is functional is key for any trip.
Also serving nearby: Westminster · Denver · Arvada · Lakewood · Boulder
More on this: DOE water heating — efficiency and sizing.
Service area details
Serving all of Thornton — population 144,922; about 3,970 residents per square mile across 36.5 sq mi. ZIP codes covered include 80241.
Neighborhoods served in Thornton: Carpenter, Eastlake, Pioneer, Thornton Creek, Westminster — and every surrounding area.
Areas we serve
Browse by state, then city.