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On demand hot water heater problems are not always caused by the unit itself. Gas supply, water flow, venting, electrical connections, mineral buildup, system sizing, and tankless installation conditions can all affect performance. John Owens Services has served Santa Rosa since 1986, and our tankless water heater team evaluates the complete system before recommending the next step for your Santa Rosa home.
A singular tankless hot water heater can adequately handle a larger home as long as the flow rate of the unit meets the hot water demands of the home.
Larger gas lines are required in tankless units because they use a larger amount of fuel than tank units.
A Rinnai instant water heater system can be good for older homes looking to increase energy-efficiency, but larger home upgrades could be required depending on the age of the home.
Installation costs and requirements are much higher for an electric or natural gas tankless water heater than a traditional tank unit. A tankless unit also might not be able to meet hot water demands if your household constantly runs multiple hot water utilities at once.
An on demand water heater system must be flushed once every twelve months.
If water pressure drops when multiple appliances are being used at once or if water never heats past a lukewarm temperature.
It is likely your house’s GPM (gallons per minute) requirement is higher than the capacity of the tankless water heater. This can happen when you constantly run multiple hot water appliances at once, like multiple showers and a dishwasher or washing machine all going at the same time.
This can be caused by scale buildup, blocked vents, or problems with the gas or power supply, depending on if you have a gas or electric tankless hot water heater.
Both tankless and heat pump water heaters are excellent energy-efficient choices, but the best option will depend on your specific household requirements and the structure of your home. Our licensed plumbers can help you decide which system makes the most sense for you.
From the Marin coast to Sonoma wine country, we bring honest plumbing, heating & cooling to homeowners across both counties — based locally since 1986.