Installing an ERV in a Monolithic Dome Home RenewAire EV130 ERV — The ERV Unit itself is hooked up. Hole Ready for Chiseling — Holes drilled, ready to be broken or chiseled out. Hole Chiseled Out — Concrete removed. Rebar needs be cut out with saw. Vent Cap — Sleve is foamed into place, ready for vent cap on roof. Vent Cap on Airform — Vent cap glued and screwed onto the Airform. NP 1 — NP1 Single part Urethane caulking used to glue down flange and water proof. Vent Cover — Looking up from inside after roof vent cover is installed. Flange to Connect — Flange ready to connect to ERV Before and After Installation — The CO2 monitor shows the carbon dioxide levels before and after ERV installation. Covers 4 Days. RenewAire EV130 ERV — This unit is installed in the home of Judy and David B. South. It has made an enormous difference in the air quality inside the home. RenewAire EV130 ERV — This unit is installed in Charca Casa. RecoupAerator Whole House Unit — The RecoupAerator® Whole House Unit is simply the best home ventilation system you can buy. RenewAire EV130 ERV — This machine brings outside “fresh” air into the home and exhausts an equal amount of the home’s stale air.