Furnace condensate drain
#1
12-20-03, 02:52 AM
Furnace condensate drain
I am building a vacation home and the Mechanical inspector says I have to drain the furnace condensate lines from my high efficiency furnace to the sewer line. My question is, if I install a trap and hook up to the sewer line how would I keep sewer gas from entering the house in the summer when the furnace is not running and the trap water has evaporated?
There is no A/C and the sewer drains to a septic system. Currently I have the condensate lines draining into the crawl space. Thanks for any help offered.
There is no A/C and the sewer drains to a septic system. Currently I have the condensate lines draining into the crawl space. Thanks for any help offered.
#2
12-20-03, 04:57 AM
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Install a quarter-turn ball valve on the condensate line and just shut it off when the furnace isn't running.
That's one way to prevent sewer gas.
Good Luck!
That's one way to prevent sewer gas.
Good Luck!
#3
12-20-03, 06:15 AM
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Usually an indirect drain is used such as a convient floor drain.
Barring this, there are traps made for commercial units for this application. Really nothing more than an open p-trap attached to an open vertical stack. There is a funnel looking top on the assembly the condensate line drips into. There is also an automatic trap primer ran to them which addresses the dry trap issue you raised.
Hope this helps, more questions, ask in this thread and someone will respond.
Barring this, there are traps made for commercial units for this application. Really nothing more than an open p-trap attached to an open vertical stack. There is a funnel looking top on the assembly the condensate line drips into. There is also an automatic trap primer ran to them which addresses the dry trap issue you raised.
Hope this helps, more questions, ask in this thread and someone will respond.
