Hi all:
I can think an option or two... ;)
First one is that
Moen makes a great little
antifreeze mixed temp. outside faucet... see image. Check them out at:
Google Image Result for http://ec-images.acehardwareoutlet.com/225/products/4303822_042909L_TK.jpg
Sold at all plumbing supply stores everywhere (or under some name brand). As mentioned by Ballenger this type of faucet requires you to run the additional hot water line over to where the faucet will go. If it is a short run for the hot water pipe this choice offers a very nice solution for you as it allows a full range of cold to hot right at one handle.
If it is a long run to the outside faucet you can also install a
mixing valve back at the boiler room and then connect the outlet from the mixing valve to the cold water pipe for the outside faucet. This keeps you from having to run a hot water pipe all the way to the outside faucet and also allows you to use the existing outside faucet EXCEPT that you will be setting the temperature that you desire and in order to change temperature settings you will need to go to the room with the mixing valve... so may not work for you. This is a great solution if you have a long run or finished ceilings to deal with and say an
outside shower you want to run... you would set at like 100F for a comfortable quick rinse, but no one could get burned (burns at 125F and above) and you wouldn't have to run pipe everywhere.
Anyway, a couple more options...
MARK
.