Good day, probably stupid question, do i have to shut down the main gas valve if i am shutting down the main water valve due to being away.
My water heater is running on gas, if there is no more water will the heater keep heating up without water in it?
Or should i shut down the main water valve and the gas isolation valve to the water heater keeping the main gas valve on? This does not seem to make any differences as the pilot 🔥 is gone too.
Thank you.
Storage.
Depends then on how long you're going to be away. Check the guidance for your jurisdiction on turning off hot water systems; if you're not using hot water there's very little saving - and a public health caveat to be aware of.
Generally speaking …
Storage hot water heaters, should have a "vacation" or "away" setting … Still heats water, but at far lower temp.
I would be looking for such a function - rather than turning off BOTH water/gas at mains.
+++ what about your retic/garden/lawn - esp coming into summer. Surely they need watering too.
If you do go with what you are suggesting above … Make sure that you 100% drain heater of water otherwise will breed BAD bacteria) … Online threads, then also mention about "flushing" the heater when re-filling.
Unless you will be away for 4+ months … Far better to use vacation setting.
That’s nice. I didn’t see any vacation mode in side my HWS. Is this setting generally inside the tank if this feature is available? It is vulcan 4.
I don't isolate either but if u do one, you may as well do the other
No. There should be a gas valve near the gas HWS and this is the one you turn off just for the gas HWS, but if you are going on holidays it is better to turn off the main gas valve.
If i turn off the gas valve to the gas HWS, wouldn’t the flame goes off and i would have the issue of water in storage tank growing bacteria?
We always turn our hot water off if we are going away and never had an issue (shutting off the gas line when we had gas, and then the electric boost when we switched to solar). I had heard when the water is reheated on your return so long as it gets up to 60~70 degrees that will kill anything living in the tank (so no problem there), only an issue if you use the water before it has properly been reheated. Of course I am neither a plumber nor a doctor though, either of those might have a different opinion!
Yeah. So i am thinking of draining the water tank either by taking long showers or release it via pressure valve. Before i go, i will turn off the isolation water and gas valve to the tank, used up all the hot water then turn off the main water and gas valve.
When back, blast the flame on max to heat up the tank filled with fresh water.
@OhNoUShiz: Check out google for what you are going to do before you do it. Good luck and best wished for this when you get back and then for the next year you use the HWS.
May be check out google before posting to learn about the real world and how to keep healthy. There is a big difference between theory and practice for some thing. Unfortunately social media is not very good with this.
Google "what temperature does bacteria grow at" and have a read.
i think the real question is "Should I not Shut The Main Gas Valve?"
Is your HWS storage or continuous flow?