IMO money spent on insulation and weatherization in general is better than money spent on HVAC. That is unless your places is already a passivehaus.................
Make the envelope rock solid and then heat it with incandescent light bulbs or something like that.
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Chipping away on a daily basis.
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You know you're an ecorenovator if anything worth insulating is worth superinsulating.
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S-F: "What happens when you slam the door on a really tight house? Do the basement windows blow out?"
Green Building Guru: "You can't slam the door on a really tight house. You have to work to pull it shut."
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