Quote:
Originally Posted by BroadHopper
Those who have forced hot water, there is an antifreeze designed for such systems. You can be able to shut down your boiler without fear of ice damage.
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You have to change the fluid every so often (5-8years) and the anti-freeze eats away at your brass fittings. You just have to pay more attention to it, but it does work well.
One other issue that may come up is finding someone that will work on your system once treated. Any water that comes out of the loop needs to be dealt with the right way.
But to shut everything down, you still have to deal with any supply lines or domestic water lines freezing, no way to anti-freeze those without dealing with a mess at every start up.