The Unit 1 HRV is installed in the basement. Since the bottom of the unit is below grade it was going to be something of a challenge to get the condensation drain out of the building....but then who knows how much condensation is expected in winter. We decide to drain into a bucket and see if evaporation can keep up with condensation.
Unit 2 had its own challenges. To reduce breaks in the envelope, the HRV for unit 2 would exhaust through the 2nd floor bathroom exhaust duct. At the same time the 3rd floor bathroom, which never had ducted ventilation, also was going to be connected to the 2nd floor bathroom exhaust duct. It's a busy duct.
This image is looking up to the 3rd floor soffit. The vent on the right is the exhaust damper for the 2nd + 3rd floor bathroom and the Unit 2 HRV. The small hole on the left has a small clear hose protruding so condensation can drip out.
The HRV was designed to pull from the 3rd floor back room and vent into the 2nd floor back room. Because the connecting staircase is in the front of the house, the air circulates throughout the house. The air intake is not visible as it is hidden within the new soffit. Normally this might be fine, but the soffit is fabricated from a PVC material, and I'm not comfortable having our fresh air filtered through a solar heated PVC box.......of course I could be nuts.
We get our exterior water spigot back, while finally solving that mysterious leak in the wall. This is just in time for spring grass re-seeding.
We got the bulk of our backyard back as the contractors start pulling materials and equipment out.
The mason arrived to fix the foundation which had split. This shows the opening the Mason made to fix the guts of the wall.
Here we're all finished.
Anderson foam is coming in for a final spray to fill in the few areas ripped out by various electricians, plumbers, and cable guys and to spray an area where the drywall had not been removed prior to the main spraying back in December.