Tankless Water Heaters
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Tankless Water Heaters in Denver
Tankless water heaters, also known as demand-type or instantaneous water heaters, provide hot water only as it is needed. They don’t produce the standby energy losses associated with storage water heaters, which can save you money.
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How They Work
Tankless water heaters heat water directly without the use of a storage tank. When a hot water tap is turned on, cold water travels through a pipe into the unit. Either a gas burner or an electric element heats the water. As a result, tankless water heaters deliver a constant supply of hot water. You don’t need to wait for a storage tank to fill up with enough hot water. However, a tankless water heater’s output limits the flow rate.
Tankless water heaters may provide hot water at a rate of 2–5 gallons (7.6–15.2 liters) per minute. Gas-fired tankless water heaters produce higher flow rates than electric ones. Sometimes, however, even the largest, gas-fired model cannot supply enough hot water for simultaneous, multiple uses in large households. For example, taking a shower and running the dishwasher at the same time can stretch a tankless water heater to its limit. To overcome this problem, you can install two or more tankless water heaters, connected in parallel for simultaneous demands of hot water for necessary use of hot water throughout the home at the same time.
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Rod and Zack did a great job with the tankless water heater install. He was courteous, explained the project, took care…
Rod and Zack did a great job with the tankless water heater install. He was courteous, explained the project, took care to cover the floors, worked quickly to restore water to the house, and left the job site clean! It was a very professional job and this is the 2nd time we’ve had Now Heating and Air install products for us.
I used Now Heating and Air for install of a new furnace/AC/tankless hot water heater. Eric worked with me to pick the…
I used Now Heating and Air for install of a new furnace/AC/tankless hot water heater. Eric worked with me to pick the perfect system and oversaw the process of install to ensure perfection. Which is exactly what I got. From start to finish they were wonderful. Today a leak was found from my new furnace and Now Heating and Air was able to get someone to me same day AND it was repaired. Miguel and Juan were so very kind and professional. Highly recommend Now Heating and Air!!!
Advantages and Disadvantages
For homes that use 41 gallons or less of hot water daily, demand water heaters can be 24%–34% more energy-efficient than conventional storage-tank water heaters. They can be 8%–14% more energy efficient for homes that use a lot of hot water — around 86 gallons per day. You can achieve even greater energy savings of 27%–50% if you install a demand water heater at each hot water outlet.
The initial cost of a tankless water heater is greater than that of a conventional storage water heater, but tankless water heaters will typically last longer and have lower operating and energy costs, which could offset its higher purchase price. Most tankless water heaters have a life expectancy of more than 20 years. They also have easily replaceable parts that extend their life by many more years. In contrast, storage water heaters last 10–15 years.
Tankless water heaters can avoid the standby heat losses associated with storage water heaters. However, although gas-fired tankless water heaters tend to have higher flow rates than electric ones, they can waste energy if they have a constantly burning pilot light. This can sometimes offset the elimination of standby energy losses when compared to a storage water heater. In a gas-fired storage water heater, the pilot light heats the water in the tank so the energy isn’t wasted.
The cost of operating a pilot light in a tankless water heater varies from model to model. Ask the manufacturer how much gas the pilot light uses for the model you’re considering. If you purchase a model that uses a standing pilot light, you can always turn it off when it’s not in use to save energy. Also consider models that have an intermittent ignition device (IID) instead of a standing pilot light. This device resembles the spark ignition device on some gas kitchen ranges and ovens.
Installation and Maintenance
Proper installation and maintenance of your demand water heater can optimize its energy efficiency. Proper installation depends on many factors. These factors include fuel type, climate, local building code requirements, and safety issues, especially concerning the combustion of gas-fired water heaters. Therefore, it’s best to have a qualified plumbing and heating contractor install your demand water heater.
Let NOW heating and air in help you select the best tankless water based on your family’s needs and affordability. Also, allow NOW heating and air to service your equipment in a timely manner to make sure it runs properly and lasts longer. Water heater maintenance can significantly extend your water heater’s life and minimize loss of efficiency. Talk to your NOW heating and air representative for more information on what to expect from your tankless water heater in the Denver area.