IAQ in a Pretty Bad House, Zone 5a Connecticut
My recent blower door test has confirmed my suspicions – my 1953, single story, 1400 sq ft ranch house is drafty – 15.7 ACH 50. My HERS rater will recommend a few fixes for this, but as our original oil furnace has finally given up the ghost, I would like to know your opinions on a replacement system that addresses the IAQ.
My preference for a replacement is an LP boiler and radiators (we already use LP for many other items on the property, including the generator). With the existing ducts needing replacement, I would like to add either an HRV or HEPA unit that will utilize new ductwork (as Martin suggests that an HRV should have it’s own ductwork). The AtmosAir bi polar ionization system has also been recommended along with a HEPA system.
Does anyone have any advice about this equipment and/or plan? The heating contractors we have had look at the system just provide us with quotes for whatever we ask about and don’t provide advice (that we desperately need). By the way, we are keeping warm with a wood-burning fireplace insert that we installed a few years ago, along with a few micathermic heaters in the bedrooms, so we are prepared to take some time to get this right. Thanks!