I cannot stress how important it is to properly drain the condensate from a tankless heater. The vent is extremely important in the piping to allow the condensate to drain freely.
Please follow your local codes on how to neutralize the condensate, but if you need to use the Navien condensate drain kit.
Here is a list of the fittings you will need for the near tankless piping,
1/2" CPVC plastic female adaptor (not metal)
1/2" CPVC tee
1/2" CPVC St. ell X 2
1/2" CPVC ell and piping
If you have any questions you can e-mail me at'
[email protected]
[email protected]

I hope you enjoy this video,
Mike

PLEASE USE A LICENSED PLUMBING CONTRACTOR TRAINED IN LEVEL 3 NAVIEN TRAINING. PLEASE FOLLOW ALL STATE AND NATIONAL PLUMBING AND GAS CODES AND TO FILE A PERMIT WITH YPOU LOCAL BUILDING DEPARTMENT.