My father and I built this home 3 years ago wheile my sister and I were going to school so we would be closer to the college, it is a semi (we own 1 half), it is about 800 sq feet, open kitchen and living room. ALL Electric heat, no furnace no gas etc. and not looking to put either of those in as there is no space for a furnace. In the winter it is humid in this house, the windows (good quality) sweat, the house is very air tight and is insulated at R30+. I live in northern Ontario, heating season is 5 months plus with 2-3 months being well below freezing. What can I do to improve the air quality in the house and reduce the humidity in the winter. There is no room for ducting and with the house complete we arent cutting holes, the house is only 2 feet off the ground in the highest point so there isnt room for working under there. I have read about HRV units but I am not familiar with hvac at all but from what I have gathered an hrv unit needs to be paired with a furnace and will not work with electric base boards as there is no ducting right? I have also looked at hepa filters but again I am still confused as to how they work, do hepa filters pull in fresh air from outside (through some sort of duct - like a range hood etc.) and exhaust stale air?? My gf and I are getting ready to purchase this house from my parents but are curious on how to make an electric heat, very air tight home breathe better, no issues with cutting a moderate hole in a exterior wall but like I said its a small home and there is NO room for a furnaced sized machine.
Any feed back would be appreciated, sorry for my ignorance on this subject, I have done every other trade other than HVAC.