Denver Tankless Water Heater Services
Imagine stepping into your shower and enjoying a steady stream of hot water that never runs out, no matter how many people in your household need to get ready. That’s the key advantage of a tankless water heater—an innovative system that heats water on demand instead of storing it in a bulky tank. By only operating when hot water is needed, these systems can lower your energy bills and save valuable space in your home.
This modern upgrade outperforms traditional water heaters, delivering greater comfort and efficiency. At Allen Service, we’ve been helping local property owners embrace cutting-edge home technologies since 1962. Our family-owned business provides top-quality installation and service, helping you fully enjoy the benefits of this convenient and energy-efficient solution.
To schedule an estimate for a tankless water heater in Denver, call (970) 431-6574 today.
Water Heater Sizing for Denver’s Unique Environment
Choosing the right tankless water heater for a home in Denver requires careful consideration of local environmental factors like altitude and groundwater temperature. At 5,280 feet, Denver’s elevation affects gas-fired models because the thinner air contains less oxygen, which can impact combustion. Manufacturers often include specific guidelines for adjusting their units at higher altitudes to maintain performance and safety.
Denver’s cold groundwater is another crucial factor, with temperatures dropping into the 40s Fahrenheit during winter. The “temperature rise” refers to how much heat the water heater must add to bring this cold water up to a usable temperature, usually around 120°F. A greater temperature rise demands more energy and can reduce the unit’s flow rate, measured in gallons per minute (GPM). It’s important to select a unit capable of handling both the significant temperature rise, and the GPM required to run multiple fixtures simultaneously. A smaller unit may struggle to meet household demands during the colder months.
Hear From Our Happy Customers
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“Allen Service came out promptly and saved the day for me! My 50-year-old condo needed service immediately & they delivered! I recommend this company wholeheartedly. Ask for Brian and Michael!”Drew V.
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“The company was responsive and went above and beyond. They worked through my broken sink issue and were informative along the way. Extremely polite and efficient. I would absolutely ask Allen for service again!”Dorothy G.
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“Allen has been our preferred vendor for maintenance and repairs across our entire apartment community. Their team is consistently prompt, professional, & efficient. They respond quickly, diagnose the problem accurately, & complete repairs quickly.”Alison W.
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“Zach Workman did an excellent job fixing my AC capacitor. And even gave me a very well explained run down of how AC units work, especially capacitors. This was beneficial to me as I am a tradesman myself. Highly recommend Allen Service.”Chance I.
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“I had a great experience with Allen Service when our AC stopped working. Kevin, was extremely polite and knowledgeable. He was able to diagnose and resolve the issue quickly and even provided some informative advice for us moving forward.”Jenna A.
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“Awesome service and customer care. They were stupendous! I noticed immediately how positive and energetic they were, working together as a team to rectify our issues. These young men were personable, courteous, & very informative.”Nicholas S.
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“My technician today was professional, courteous, thorough, and made everything easy to understand. My AC had stopped working and Allen was able to get someone to my house within 4 hours which was exceptional and appreciated!”Shannon M.
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“A wonderful experience with both of the technicians today. They arrived early, were pleasant, very professional, and installed an amazing unit.”Mary F.
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“Exceptional customer service from the first phone call, to scheduling, to completion of service appointment, to diagnosing the A/C not cooling properly. Extremely impressed. I will gladly be telling everyone I know to call for any of your services!”Christie S.
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Key Considerations for Switching to a Tankless Water Heater: Gas Lines & Venting
Upgrading to a tankless water heater is more complex than swapping out your old unit. It often requires significant changes to your home’s utility lines. Unlike conventional tanks, tankless water heaters demand a high volume of fuel instantly to heat water on demand, with BTU ratings up to four or five times higher. Most homes with a ½-inch gas line can’t handle this demand, meaning you’ll likely need to upgrade to a ¾-inch or even 1-inch gas line to accommodate the fuel needs.
Venting is another major factor that works differently from traditional water heaters. High-efficiency tankless models use sealed combustion systems and require separate PVC or ABS plastic vents for both air intake and exhaust. This typically involves drilling two new holes through your exterior wall, as existing chimney flues are incompatible. Proper venting is essential for the appliance to function safely and efficiently.
Understanding the “Cold Water Sandwich” Effect in Tankless Water Heaters
If you’ve recently switched to a tankless water heating system, you may encounter the “cold water sandwich.” This happens when one person finishes a shower and someone else starts theirs shortly after. The second user might notice a quick burst of cold water during an otherwise hot shower. This occurs because when the first person turns off the tap, the tankless unit shuts down, leaving some hot water in the pipes. There’s a brief delay when the next shower starts as the unit heats new water, creating a gap where cold water flows through.
Although this is a common feature of tankless systems, modern technology has made strides to reduce this issue. Many newer tankless water heaters now come with small built-in buffer tanks or recirculation systems that keep water consistently warm in the pipes. These innovations help provide a smoother, more comfortable experience without unexpected temperature changes.
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Protecting Your Tankless Water Heater from Hard Water
Denver, like many parts of Colorado, has hard water with high levels of minerals like calcium and magnesium. While safe to drink, these minerals can seriously affect the performance and lifespan of a tankless water heater. When the heat exchanger rapidly heats water, the minerals can separate and form a hard layer of scale. This buildup restricts water flow and coats the heat exchanger, making it work harder and longer to heat water.
Over time, this added strain reduces efficiency, increases energy use, and may cause overheating, leading to premature shutdowns or permanent damage. To avoid these issues, manufacturers recommend regularly flushing or “descaling” tankless water heaters—usually once a year. This process involves running a cleaning solution through the system to break down mineral deposits.
We can help you keep your tankless water heater in top shape with our professional descaling services. Our team uses safe and effective cleaning solutions to remove stubborn mineral buildup and ensure your system runs efficiently. By trusting us with this essential maintenance, you’ll extend the lifespan of your water heater and save on energy costs.
Schedule an estimate for a tankless water heater in Denver by calling (970) 431-6574 or contacting us online today. We also serve Aurora, Centennial, Boulder, Greeley, Eaton, and the surrounding areas.
