I have some questions about preventing frozen (water) pipes:
1) I have some water supply pipes in the garage.
I leave the furnace (laundry) room) door partially open so that the garage doesn't get too cold (garage seems to stay around 50 degrees).
I don't want to open the furnace room door all the way, since there are a load of water pipes in the furnace room.
Is the foam heat insulation (Frost King found at Home Depot) for the garage water supply pipes enough? (I already insulated the garage pipes that way about a month ago).
Or should I install heating cable as well? I am in northern NJ as a pint of reference.
Like I said, the garage temperature is around 50.
I guess it may go down to 45 or 40 when it gets really cold out...I haven't monitored/checked the garage temprature that closely/often.
The previous owner (or one before that) had heating cable wrapped around the pipes, although I think it wasn't working anymore. There was old insulation (not the new foam stuff, but rather the off-white attic-like insulation material with a white paper-like exterior finish) around the pipes, but it wasn't in good shape.
2) There is a thicker black metal pipe in the crawl space on ground level (bi-level house, no basement), but I assume it is NOT a water supply pipe? I assume it might be a drainage pipe of some sort.
Can anyone confirm this?
(I can take photos of this pipe and send them if necessary for verification).
This pipe was not wrapped in any way when I got here, and the previous owner was here for seven years, so it would appear to be okay.
If it is a water SUPPLY pipe, the previous owners may, however, have kept the door in the hallway leading into this decent size crawl space open to get the space heated.
All of the sides/walls/gaps of the crawl space connected to the outside are wrapped with insualtion (just like the type in the attic).
I don't mind wrapping this pipe, but it is long and there is no outlet, so heating cable would be a pain.
I could put insulation though.
However, I only want to consider either of these two options if it turns out to really be a water SUPPLY pipe (as opposed to simply a drainage pipe).
3) The house seems to have two water meters?
One is inside the garage - I have insulated all the water supply pipes serviced by this meter.
(I obviously didn't insulate the thick water drainage pipes in the garage).
BUT there is a second(?) square green metal water meter with two pipes coming out of it, right OUTSIDE the garage.
a) should this outdoor meter's THICK pipes be wrapped in any way?
b) what is the purpose of this meter?
Sorry for my ignorance on this...
4) What about turning the water MAIN off when I am not home for extended periods (i.e during work day) in winter?
I know it will be a hassle, but does that make sense?
Will it put excessive strain/wear on the knob, if it is opened and closed daily on cold winter days?
Will the water already in the pipes have a greater chance of freezing than if the main is not turned off? I doubt it, since I assume the pressure would be reduced; however I wanted to ask the experts here.
I guess, if nothing else, turning the main off will at least minimize damage if the pipes do freeze, especially since I don't have a basement and work during the day, and water leaking and/or running from the pipes all day could be catastrophic!!
5) I have a 2nd (half) bathroom that I don't use.
I have been flushing the toilet once a day and turning both the hot and cold water faucets on for 20 seconds or so a day.
With respect to pipe freezing: Is it better to do this during the (cold parts of) winter, or just leave them and bot use them at all?
GENERAL QUESTIONS:
If pipe freezing happens when pipes are exposed to freezing temperatures, why do they mention to have house temperature no lower than 55?
Is this so that the pipes near the outside walls get warmed up?
I mean if the pipes were subjected to temperatures of 50 degrees, for instance, would they be able to freeze?
(In any case, I like to play it safe. I actually don't let the house temperature go below 62. Until I get all the pipes properly insulated, I have set the thermostat to 67 when I am not home).
The answer to this will help to answer whether the garage pipes being wrapped with Frost King foam pipe insulation is enough.
Thanks a lot for any, and all, tips and suggestions, to those
who read through this lengthy post!
Hopefully this thread will help others as well.
Not all of us are fortunate enough to live in warm climate areas.
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