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Frequently Asked Questions....
- Q: How do tankless water heaters work?
A: Tankless water heaters work on demand. They only heat water when necessary. When a hot water fixture is opened or hot water is required by an appliance, the heater will sense the demand and heat water accordingly. Instead of wasting energy and money storing hot water when it is not needed, tankless water heaters provide only as much hot water as needed.
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- Q: What is the difference between a storage tank water heater and a tankless water heater?
A: Tank water heaters store and heat water at all times, thus incurring higher operating costs, whereas tankless water heaters only heat water as needed. In addition, tank heaters have a limited supply of hot water, while tankless heaters provide an unlimited supply of hot water.
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- Q: How much money can be saved if a tankless water heater is used in place of a storage tank?
A: The California Energy Commission estimates that a water heater uses approximately 25% of all energy consumed by any household. Using a tankless water heater will allow a home to use up to 50% less energy for water heating, which can cost up to hundreds of dollars per year.
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- Q: Which model of tankless water heaters is right for my application?
A: The best way to size a tankless water heater for any application is to estimate the peak flow capacity that will need to be supplied by the water heater at any time. For residential use, this will most likely be the maximum number of showers that may be used simultaneously, multiplied by the flow rate of the showerheads. This calculation should only be done by a trained Imperial Tankless consultant. Once this maximum flow rate is calculated, your one of our Sales Consultants will guide you to the proper machine and installation.
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- Q: What temperature should the water heater be set at?
A: The set temperature of the water heater depends on how it will be used. A comfortable shower temperature should not be much higher than 100 degrees F (temperatures above 120 degrees F will cause burns). Lower temperatures will also prevent scale deposits from forming and affecting the operation of the heater. Most of our customers set the digital control at 108 degrees.
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- Q: How do I change the temperature on the water heater?
A: All Imperial Tankless water heaters come standard with a remote digital temperature controller, which allows you to adjust the water temperature. The water temperature is displayed on the control panel, and can be adjusted using the up and down buttons.
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- Q: What if there is not enough water pressure from the heater?
A: If the pressure being supplied into the water heater is low, the pressure coming out of the water heater will also be low. If the supply pressure is normal and the water pressure is still low, the water heater may be too small for your application. Contact Imperial Tankless about replacing your heater with a larger one.
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- Q: Do I need a water softener?
A: It is suggested to use a softener in areas where hard water is a problem.
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- Q: Water is dripping from the relief valve on the outlet of the heater.
A: This may be a failure of the relief valve, or a response to dangerously high temperatures or pressures in the water heater. Contact one of our Sales Consultants to check this problem.
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- Q: There is a number flashing on the control panel.
A: When the temperature is set to 140 deg. F or higher, that temperature will flash on the control panel display for the first ten seconds. If the number continues to flash after ten seconds or if there is no number displayed, contact us for service.
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- Q: Can tankless water heaters be used in extremely cold regions?
A: Most tankless water heaters have freeze protection that will protect it from below freezing temperatures, but only down to 5 degrees F. Even if the heater is installed indoors, follow the instructions in the Owner's Manual and Installation Guide.
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- Q: Is regular maintenance required?
A: Consult the Owner's Manual and Installation Guide for proper maintenance procedures. You may also call us with any maintenance questions you have.
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