Water heater models can be divided according to whether the unit has a tank for storage or not and the type of fuel that powers the unit. Understanding these factors for a water heater can help identify the best unit for your needs. Tankless gas water heaters have particular pros and cons that can help steer your decision. If you have more questions, you can contact a water heater installation company.
Pro: Energy Efficient
Traditional tanked water heaters have dozens of gallons of water that fill up the tank, receiving heating from the burner assembly, and then sit and wait for you to need that water. When you do use some of the water, more cold water enters the tank for heating so that the tank stays full. This constant refilling regardless of need wastes both water and the fuel source that powers the burner.
A tankless gas water heater is attached to the water lines and only heats the water that passes through when you turn on the faucet and ask for it. The on-demand nature of the heater saves energy and water costs without depriving you of any warm water.
Pro/Con: Provide Continuous Supply – to One Faucet at a Time
The tankless water heater can supply a continuous supply of hot water without fear that you will "run out" since there isn't a draining tank in the equation. A tankless heater is therefore a better choice if you frequently have demands for a large supply of water such as filling up a large bathtub.
The downside is that the tankless water heater setup can only provide that continuous supply to one faucet or outlet at a time. You can't fill up that large bathtub and run the dishwasher in the kitchen at the same time, for example. If you have a busy household that needs to operate several faucets at the same time frequently, you might want to stick with a traditional water heater.
Con: Higher Upfront Costs
A tankless water heater can cost more upfront than a traditional tanked unit. If you can't afford the initial cost, a tanked water heater is a better option. But if you can afford the price tag, you will likely end up seeing lower long-term costs. The improved energy efficiency will save you on utility bills. The simpler design of the tankless system means that repair costs are lower especially since tanked unit problems often require replacing the entire tank.
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