General energy efficiency housing question
I am hoping someone can help me out with a general question.
I am in a newly built home (3 years old). It was well built and air sealed. Our energy bills are quite low so that helps support my theory of a well sealed house. I can give more details upon request. We have an HRV installed to be used for fall/winter/spring when the house is generally closed up and requires ventilation. We have found in the winter that the house tends to get very dry. I have our HRV set to not continuously run but set at a level of 50%. The house doesn’t get to that humid and the HRV doesn’t kick on. In the winter the humidity in the house is around 25-30%. We are noticing that the floors are cracking a bit at this lower humidity. Why would the humidity be so low in the house? Should I be running the HRV on low continuously during the winter months? The house is large (approximately 6000 sqft) with only three occupants. We use forced air natural gas to heat. Are we just not generating enough moisture for a house that size to keep the humidity high enough? Should I be looking at getting a small humidifier to help generate more moisture.
I live in Ontario Canada so we do get cooler winters but nothing that would be that extreme most winters.
Any insight or advice you may have would be greatly appreciated. I have asked countless HVAC contractors but they are not experts in efficiency.
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