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This is one of the few 'how to' videos that is clear, thorough and succinct. It's professionally done and a pleasure to watch. Thank you! Though I do have a question, please: A plumber told me that this type of water heater does not use any more gas than an instantaneous heater. He explained why, but I still don't understand. From what I gather, with tank heaters, when the water temperature drops to a certain point, the thermostat prompts flames to kick in and heat the water again. That means, gas is regularly being used to heat water, even if you're not using the water. Whereas, with an instantaneous hot water heater, the only gas that's used is the gas that you're actually using. Therefore, wouldn't instantaneous heaters use a lot less gas?
I have an old 1992 AO Smith water heater that came original with my house, and it has been working for those 20+ years and still is. AO Smith makes a darn fine device!
***** I do, however, have another question. My aunt recently got a new water heater, because the pipes on the old one somehow corroded shut, although there was no surface corrosion. How could this have happened within the pipe? She gets city water, and I believe there is a filter on the incoming main.
Elena & Ryan The cold water enters the water heater under pressure and displaced warm water in the tank as sonn as you open the faucet upstairs. No pump needed.
One thing I've been confused about is what controls the burner? When and why does it shut off? And when and why does it turn back on? Is it a pressure reader or a thermostat? I've always found that confusing. Btw. Good video. :-)
I can answer that question for you.. What controls the burner is usually a thermostat that controls the temperature in the water. It usually shuts off when the temperature is at the selected setting (if you have a selectable heater dial). It shuts off so it doesn't get hotter and hotter and so it doesnt overheat. On some older models, it is a pressure reader, newer ones have a thermostat. Well there you go.
As long as you don’t have a gas leak it is not dangerous. That being said you still should be very cautious. If there is a gas leak and enough of the gas builds up it can be ignited by either the burner inside the water heater or by an external source. If there is no gas present then there is nothing to ignite. I would still try and avoid smoking around any gas appliance. Gas often will settle low to the floor and you may not smell it right away. Be aware and be safe! We want you to be around to watch a few more videos.
I have a steady stream of water leaking from the bottom, at the back, where pilot is. Im assuming I should turn off water. Do I turn it off at tank? Or do I turn it off at the water main?
The problem with high efficiency furnaces and hot water heaters/boilers is that exhaust air containing CO and CO2 could leak out of the condensation port.
That would never happen as the video mentions that the carbon monoxide gets vented outside so there would be no chance for it to leak from the exhaust vent
a friend of mine has a gas water heater, and i noticed that the cold inlet pipe is just as hot as the outlet hot water pipe. Do you have an answer for that?Thanks.
Fabio Darocha - that would typically be the case when the unit is not being used but is working. Hot water will heat both hoses/pipes equally. Once someone uses the hot water and cold water is flowing into the unit the cold water pipe should go colder for that timeframe.
so if the heater is turned on in the bed room, and the air temperature is not as hot as before or almost room temperature, it is possible the dip tube could be broken off or has holes in them, am i correct ? thanks !
+michael lee If the dip tube breaks the water at the bottom of the tank will be hot, but the water where the out going tube picks up the water will be warm at best.
raredreamfootage no gas water heaters don't need electrical connections as you probably know. The small electrical power requirements are met solely through the thermocouple or thermopile.
please reply wehre should i set we have Low, A B C and Very hot where should i set the temp we dont have hate in our water when i go basement the setting was on Low i am scared to change the setting coz i really dont knew idea how this things work,,,,
@RepairClinic.com I have a Rheem Fury Natural Gas 40 US Gallon 36,000 BTU water heater with an EF of .59 and I have accidentally spilled water on the thermostat (about a teaspoon of water), should I replace it or will it be ok, or should I just wait and see if the thermostat malfunctions and causes the T&P valve to activate or the burner to stop firing, the thermostat is almost identical to this one (waterheatertimer.org/images/Gas-water-heater-89-valve-2.jpg)
So, for some reason my water heater is still working but as the water, for example when i turn on the sink for the hot side there is NO hot water what so ever it like the hot water just disappear some where. I been without hot water for a week now, need to get it fix but have no idea what wrong, please if anyone got any idea that would help a lot.
If you have no hot water at any of the faucets make sure the valve on the water heater is turned on. You can watch the how it works video to help you . The cold water pressure pushes the hot water out of the tank and into the hot water lines. www.repairclinic.com/Video/VLVideoLayer/1032
