Yes. It connects to the inside of the tank, where the hot water is. Heat from the hot water will heat the vent pipe by conduction. The top end should be much warmer than the bottom end, near the floor or outlet.
yes there are direct vent gas water heater available Absolutely NOT
B-vent pipe.
a direct vent water heater is more fuel efficient (cost's less to operate). aside from that there isn't much difference, aside from not needing a double wall flue through the roof on a standard gas water heater.
The difference between a mobile gas water heater and a standard gas water heater is that a MH unit will use an outside air intake for combustion. That is the most important difference.
No. Gas water heaters are not all designed to use direct venting.
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YES
The gas valve for the water heater should be turned on when you need hot water and off when you do not need hot water.
P.F Edwards has written: 'Direct vent water heater test' -- subject(s): Gas Water heaters, Testing, Water heaters, Gas
It means your water heater does not have the right combustion air for the gas valve to operate correctly or your vent may be plugged
The necessary steps for gas water heater vent pipe installation include measuring and cutting the pipe to the correct length, ensuring proper alignment and slope for efficient venting, securely connecting the pipe to the water heater and vent hood, and sealing any joints with high-temperature silicone. It is important to follow manufacturer instructions and local building codes for safe and effective installation.
I am considering buying a gas water heater. How does a gas water heater work?