I am currently renovating my home and installing a new heating system. The house is on a slab and the plumber is installing all the new baseboard pipes up through the walls and through the ceiling. He did not want to chop out the concrete floors to go under doors.
The house is 1000 sq. ft. and the pipes go up and than back down four times on one zone.
I was told this could be a problem with getting air in the heating pipes, is this true, if so what is the rule of thumb for vertical rise to horizontal run?
Thanks,
Greg
Replies
Sounds like more vertical rise than most circulator pumps could overcome, initally (before the system is charged).
If there are valved connections for charging the system, than a larger pump can circulate water or water/gycol until it runs clear. Then circulator pumps could handle it. (The plumber comes with and leaves with the larger pump in this scenerio).
If you are running water only, I like to plumb it so city water can blast though each zone separately. Once all the noises and bumping and bubbles stop, close the valves to that zone and blast out the next one.
But lacking acessible air bleed valves at every high point, you need something like one of the above solutions in order to clear the air (and inital gunk) from each zone.
I always power purge my systems.
Make absolutely sure it is installed in the "pumping away" manner. Use a good air eliminator like Sparco or Spirovent.