It depends on jow much it is, We have used pex out here in N.Cal for the last 3 years and they still dont let you use it in parts of the bay area, if you are going to do the job yourself then then tool you will need will cost more in $ than all the material and time it would probably take you to do it in copper- I like the pex when used with a mana-block ,meaning each run is a home run, otherwise to me it looks like a drip system.I have never seen either fail,but on one job we were at, the mice were eating through the plastic (they could smell the water I guess.)

The highest efficiency furnaces have direct venting which means the exhaust is a plastic pipe that goes out the side of your house.

You apply the stuff and cover it in plastic wrap.

@Jon Crosby definitely agree, I was very comfortable with one cleaner,  very reliable and a great cleaner, Then she needed surgery and I did get a recommendation through a facebook group.

Try to start moving your units away from any plastic parts on the supply side of your water (other than PEX).

I was going to a Chiropractor and he recommend I had a MRI on my head and sure enough that specialist Doctor found the brain annurism and had me scheduled for surgery on the 22nd of December that was coming up and my regular Doctor had been very impressed with my health for about 30 years.  

Unfortunately I have to spend my money on fancy things like heart surgeries and medical bills.The sad fact is a lot of the people I know are in a similar boat. 

I would rather have that swapped out with plexi from tap plastics or a place like that. 

The duration shingles typically have a plastic nailing strip that is nice for an installer and good for the life of the shingle.

I can write and publish an article tomorrow about how to do heart surgery but that doesn't mean I actually know how to (I don't).I think you'll find that most service professionals catering to the real estate industry have moved away from hourly billing.