The tankless indoor models have a vent flue attachment at the top of the water heater.
Tankless water heater outside.
The main disadvantage to outdoor tankless water heaters is that they need freeze protection for the heat exchange if they ll be exposed to cold temperatures.
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Simply locate the appropriate water heater sizes on ecomfort using your information.
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But what s the difference.
The vents are located on the front of the water heater near the top of the unit.
If you live in a climate where temperatures drop below freezing you must always be sure to take precautions to avoid freeze damage such as draining the unit.
Below we ve highlighted what size water heater you would need in our example of 6 5 gpm at a 63 f temperature rise.
Power vent units use indoor air for combustion and simply vent the exhaust to the outside.
The main thing is that they are installed outside of course meaning their ventilation is outside.
These water heaters do not need to be vented because the unit is already installed outside.
There are many advantages to outdoor water heaters but there are also several disadvantages to take into account before you decide that one is right for you.
One of the reasons why you should get a tankless water heater is that your place might not have enough space for one or it s too cramped or the house is too old and the air duct system can t be replaced without having to demolish the entire house then getting an outdoor tankless water heater is a possibility.
Direct vent units pull in air from outside the house so they have two vents for intake and exhaust.
An outdoor unit is installed outside the home and is designed to withstand the elements.
Exterior tankless water heater is able to save a large amount of space for you it is installed outside the wall of the bathroom or kitchen so even with a small home you can still get one for convenience using.
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Tankless water heaters can be vented in two ways.
Once you have your total flow rate and the required temperature rise you can find the right size tankless water heater for your home.
Fear not there are outdoor units for nearly every major tankless heater model on the market.