5 min read · updated October 16, 2026A whole-home humidifier mounts on the furnace ductwork and adds moisture to every room as the furnace runs, raising a Michigan house from the 15-to-20 percent humidity typical of January to a comfortable 30-to-40 percent. That reduces static shock, dry skin, nosebleeds, cracked hardwood and the feeling that 70 degrees is cold. Bypass and fan-powered units suit most homes; steam units handle large or tight houses.
5 min read · updated October 16, 2026In a Michigan winter, keep indoor relative humidity between 30 and 45 percent, and lower it toward 30 percent or below when the outdoor temperature drops under 10 to 20°F to prevent window condensation. In summer, keep it under 55 percent, which the air conditioner handles if it is sized right. Above 60 percent in any season invites mold; below 30 brings static, dry skin and cracked wood.
5 min read · updated October 16, 2026Constant static shocks in winter mean your indoor humidity has dropped below about 30 percent, which is where air stops dissipating charge and your body stores it until you touch metal. Michigan houses routinely fall to 15 to 20 percent in January. Quick fixes help a little; the permanent fix is a whole-home humidifier on the furnace that holds the house in the mid-30s.
5 min read · updated October 16, 2026A house that gets dusty faster than normal usually has return ducts leaking in the basement or crawlspace, pulling unfiltered air into the system and blowing it out every register; a filter that air bypasses around the edges; or a filter too thin to catch fine dust. Duct cleaning rarely helps for long on its own; sealing the returns and fixing the filter cabinet does.
5 min read · updated October 16, 2026A second floor that runs hot in summer and cold in winter is caused by heat rising through the house, undersized or missing return air upstairs, long supply runs that leak and lose pressure, and attic heat through thin insulation. Fixes, cheapest first: seasonal damper balancing, adding upstairs returns, sealing ducts, more attic insulation, a variable-speed blower, and zoning with motorized dampers.
