DIY heat recovery and ventilation question
Ok..so it’s been a while. We completely destroyed and then rebuilt our 1800s house and aside from some trim and exterior improvements…we have been comfortably living in it now for over a year with many thanks from this site. We used the cut and cobble insulation system combined with blow in with a mooney wall to keep our house very energy efficient. Even in the deep cold of winter our heat bills are below 100 bucks in a 1400 square foot house built over 135 years ago.
The problem is the basement. I’ve insulated and air sealed and have a dehumidifier going constantly but the occasional heavy rain brings some water in and the whole house smells musty coming up from the basement when the house is closed and the AC is on. The house is pretty tight and I have no air exchanger.
I’ve been looking into a fan tech unit and recently been looking into some DIY solutions..one using a length of PVC and some soda cans (i’m sure it can be done better with a small aluminum pipe spaced out inside a larger pvc section).
I’m working on the water intrusion issue but still feel some fresh air would be nice. I didn’t have this problem last year before I replaced all my old original leaky basement windows with glass block and sealed it up.
Does anyone have any experience with the DIY HRV or ERV units? Thanks much
GBA Detail Library
A collection of one thousand construction details organized by climate and house part