should i insulate my hot water copper pipe?
I noticed that if i use hot water in my kitchen less frequently than few times per hour then the water takes a while (about 30sec) to warmup again next time. I visited my crawlsoace and found indeed about 15 feet of naked copper pipes until the tank, and noticed that after 20min the pipe has indeed lost its heat radiatively
So to reduce the water and energy waste would it make sense to put some insulation around the pipe (the one for the hot water, i live in California, the cold pipe never freezes)?
Anyone did this? Why is it not there already, is it impopular or ‘bad’? Is the sleeved foam tube better than fiberglass? Do you see lower bills?
so if it is so easy to do, and may (i yet have to hear about sb confirming the drastic savings) save my bills, then why is there no foam yet? do builders not know that? (i checked both my house and a friends, no foam whatsoever)
It’s a great idea
You’ll save energy and that = dollars
The foam tubes work great and unless you enjoy working with itchy fiberglass, I recommend them.
They come in different sizes so measure the pipe. Get some duct tape to join them. You can cut the tubes with a nice sharp knife (like cutting a salami). If you have corners cut the foam at a 45 degree angle. Just like making a picture frame. You can cover the cold water pipes too. So you won;t have to wait so long for a glass of cold water.
Good luck
BioBased Insulation’s spray 
A fiberglass cup holding hot coffee (if possible)