With a direct vent system air for combustion is drawn from a vent pipe that runs through an exterior wall or the roof.
Why are direct vent water heaters so expensive.
Exhaust gases are vented outdoors through a separate vent duct or through a separate chamber of the same pipe this requires a double wall vent duct.
The difference is that a power vent water heater pulls in combustion air from the space around the appliance then uses a fan to propel the exhaust through the vent.
These heaters obtain combustion air and vent discharge thru the same pipe and have a sealed combustion chamber all of which is reflected in the price question.
One is for intake while the other for exhaust.
Why was the dv water heater installed instead of a non direct vent water heater.
Have to say i haven t looked recently.
But that s what it s all about.
For most direct vent systems two pipes are used.
A direct vent system typically results in lower water heating costs because the exhaust gases are vented vertically with no extra power required as is the case with the power vent water heater.
However unlike direct vent options combustion fumes in both vent free options are vented inside the home which affect some people who are sensitive.
Direct vent tankless water heaters require no extra power the exhaust gas is drawn out vertically through separate vent duct.
Direrct vent water heaters are more expensive they can be located in areas that other water heaters cannot.
Direct vent water heaters.
But many manufacturers now adopt concentric vents only.
Direct vent water heater when using a direct vent water heater water is heated by the heat of fuel combustion.
And unless you have a water heater that can gravity draft into a regular chimney then you need to have a forced draft water heater and that s why it s more expensive.
Over the years i ve bought dented or showroom natural gas storage tank models from sears in the usa for approximately 200usd or less for friends and family.
Ok and what about a direct vent.
Well i don t know that they are so expensive.
A direct vent system pulls in.
It s also more circuitry so that the power goes off the water heater goes off and so on.
Why tankless gas water heaters the popularity of luxury bathrooms is growing and so is the demand for large volumes of low cost hot water.
Power vent water heater.
We have six kids so the hot water in the house doesn t last long running out of hot water and time before the cost of water heaters starts rising christianson made a quick decision i heard.