A gas water heater consists of two assemblies: a tank to hold the water, and a burner under the tank to heat it. The two never touch, so you can't have natural gas in your water.
The bubbles you see in your water are air.
Yes
If you have an instantaneous hot water heater, and your faucet doesn't flow enough water it won't turn on the water heater. Thus requiring another faucet to be turned on.
If water is only drawn from the cold faucet, then no, the water heater is not involved. However, if water is drawn from the hot faucet- even for a few seconds- hot water IS withdrawn from the heater, and fresh cold water drawn in to be heated- even if the hot water did not make it all the way through the pipe to the faucet- and the water heater will work to heat that fresh cold water.
Water is coming down from upstairs or it is back pressure from the water heater. If it is the water heater, it can come out of either side of the faucet.
When you want to know when your hot water heater is broken, simply run your faucet and test the water. If it's cold, the heater is broken.
Check the temp on your hot water heater, you can turn it up.
There are a few things you can do. First wrap the hot water lines from the water heater to the faucets. You can also install a hot water circulation system that basically circulates hot water to the faucet 24/7. This allows you to have almost instant hot water each time you turn it on. You can also install a small on demand water heater near that faucet. It will produce hat water when the faucet is turn on. There is no storage tank on this type unit. They are very small and can fit under a sink.
The water heater may be rusting out. Try flushing it. This involves hooking a hose to the faucet on the bottom of the water heater, opening the valve for a few minutes, and then closing it. Have the hose discharge into a bucket or a drum to see if there is a large amount of rust. If so, you should replace the water heater. == Answer== It sounds like they used a black nipple on tub spout. you need to change to galv. or brass. hope this helps.
it has to heat up, just like water has to warm in the faucet.
Sounds like the anode is giving up the ghost or a faulty dip tube
Factors to consider when shopping for a natural gas wall heater is the reputation of the brand, the length of the warranty and the safety features of the heater.
Generally this is caused by pressure being built up from the water getting hot in the hot water heater. By code you should have a hot water heater expansion tank on the cold water inlet of the water heater to absorb the added pressure. If this is your problem, the excessive pressure could possibly burst your water heater. The faucet stem or cartridge or washer may be loose or moving and blocking flow.