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Read This Before You Buy a Tankless Water Heater

Read This Before You Buy a Tankless Water Heater

Tankless water heaters enable you to heat water only when you need it. They produce more hot water while using less power saving you money, space, and energy as compared to regular tank heaters. They can heat all water or just one appliance, sink or shower.


A tankless water heater uses electricity, natural gas or propane to provide you with a constant source of hot water. These water heaters can curtail costs by using an HVAC heating and cooling system. The initial cost to purchase a tankless water heater is expensive, but most people get enough energy savings from the appliance by using an HVAC service company.

How to Pick the Right Tankless Water Heater

It is crucial to select the right tankless water heater size for your home. The two things essential things to think about before making a purchase are the flow speed, which is the water calculated in GPM (gallons per minute) for an appliance or equipment, and the temperature increase, which is the contrast between the water from ground and the temperature of piping water coming in.

Flow Speed

To calculate your piping water requirements, note down all the equipment you’ll operate at once. To get the total flow rate, add up each appliance’s flow rate. You can also read the manufacturer’s manual or look for the GPM stamp on the product. 

Temperature Increase

Temperature of ground water fluctuates and can range from 0 to the upper 20s, measured in Celsius. Normally, inside home water temperature varies from 40 – 50 degrees Celsius. Calculate the temperature increase by subtracting the temperature of water coming in from inside water temperature. 

When purchasing a tankless water heater, consult residential HVAC design services. They can help you consider factors such as your house size, the discharge rate of water from your fixtures, the water temperature prior to heating up and the desired temperature of water. 

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