We have no water right now. Are there any concerns about our tankless water heater? Should we turn it off? I don't know nuthin' about this thing.
Well, a tankless water heater is still comprised of pipes that can freeze. If it's indoor, it might be kept warm enough to not matter but most people have them installed on the exterior surface of the house.InMyOpinion said:
Just curious why you would need to do anything to a tankless?
Asking because I have 2 of them and I was without water/very low water pressure (not enough to trigger the unit to come on) for a little over 24.
Water was back to normal last night and everything works just fine
GotchaChase said:Well, a tankless water heater is still comprised of pipes that can freeze. If it's indoor, it might be kept warm enough to not matter but most people have them installed on the exterior surface of the house.InMyOpinion said:
Just curious why you would need to do anything to a tankless?
Asking because I have 2 of them and I was without water/very low water pressure (not enough to trigger the unit to come on) for a little over 24.
Water was back to normal last night and everything works just fine
If you know that you are going to have potential for really low temps and aren't looking to keep the water heater running via streams of water in the house, I'd cut off the inlet supply, drain the lines via the flush and turn it off so it doesn't have any potential for issues. A lot of folks don't run enough of a stream when they drip faucets to actually engage the water heater so they can definitely be at some risk in bad conditions.
We put a polyfill body pillow around our exposed pipes on the exterior unit and wrap them up for freezing temps but we also do streams of hot water if temps are going to be below freezing for any significant amount of time.
For those talking about using a breaker, I highly recommend a tankless install have an indoor cutoff valve for the water inlet, an indoor switch for power and, if gas, an indoor cutoff valve for the gas all placed close to the panel for adjusting temp. It really improves ease of use/maintenance, IMO.