Make up air
Automatic damper with pressure sensor installed near exterior wall, and secondary backdraft damper for an insulating air pocket, and fresh air wall cap
https://jet.com/product/detail/32a600d2380c4e679fe4fb8eb2ba5394?jcmp=pla:ggl:a_nj_dur_gen_hardware_a1_b1:heating_ventilation_air_conditioning_a1_other:na:PLA_648327839_30263633542_pla-161722007100:na:na:na:2&code=PLA15&gclid=CPGusfKWps8CFaSAMgod-AMI3g&gclsrc=ds
http://www.broan.com/docs/catalogs/Broan-Make-Up_Air_Damper_Application_Guide.pdf
http://www.homedepot.com/p/Speedi-Products-6-in-Galvanized-Back-Draft-Prevention-Damper-AC-BD-06/202907125 upflow only (vertical, will not work horizontal)
http://www.homedepot.com/p/6-in-Fresh-Air-Vent-FAV6/100396938?MERCH=REC-_-PIPHorizontal1_rr-_-202914302-_-100396938-_-N
https://jet.com/product/detail/32a600d2380c4e679fe4fb8eb2ba5394?jcmp=pla:ggl:a_nj_dur_gen_hardware_a1_b1:heating_ventilation_air_conditioning_a1_other:na:PLA_648327839_30263633542_pla-161722007100:na:na:na:2&code=PLA15&gclid=CPGusfKWps8CFaSAMgod-AMI3g&gclsrc=ds
http://www.broan.com/docs/catalogs/Broan-Make-Up_Air_Damper_Application_Guide.pdf
http://www.homedepot.com/p/Speedi-Products-6-in-Galvanized-Back-Draft-Prevention-Damper-AC-BD-06/202907125 upflow only (vertical, will not work horizontal)
http://www.homedepot.com/p/6-in-Fresh-Air-Vent-FAV6/100396938?MERCH=REC-_-PIPHorizontal1_rr-_-202914302-_-100396938-_-N
This user has not saved anything yet.