Whole-house humidifiers.
Indianapolis winter indoor humidity routinely drops to 15–20%, which is drier than the Sahara. That's why your wood floors shrink, your nose bleeds, the static-shock factor is constant, and your toddler's bedroom always smells like a humidifier left running. A whole-house humidifier — typically an Aprilaire 600 or 700 mounted on the furnace return — pulls humidity up to 35–45% across the whole house using your existing ductwork. Installed and tied into the furnace blower, not a window-rattling portable unit.
Range: $750–$1,400 installed depending on the model and the existing plumbing run. Most installs finish in half a day.
Whole-house dehumidifiers.
The flip side, for summer. Indianapolis humidity in July can sit at 70%+ indoors even with the AC running, and AC alone doesn't pull moisture out fast enough in a sealed, newer-construction home. A whole-house dehumidifier (Honeywell DR90 is the common pick) ties into your ductwork and removes 90 pints of moisture per day. The house feels cooler at a higher thermostat setting and your basement stops smelling like a basement.
Range: $1,600–$2,400 installed.
Filtration: 1-inch vs 4-inch vs HEPA.
Standard 1-inch pleated filters are fine for normal homes that get changed every 30–60 days on schedule. Most homes don't change on schedule. A 4-inch media filter (MERV 11–13) has about four times the surface area, captures finer particles, lasts 6–12 months, and doesn't restrict airflow nearly as much. Total cost over five years is lower than the 1-inch route.
True HEPA filtration on residential HVAC requires a dedicated bypass setup because HEPA's pressure drop is too high for a standard residential blower to push through. Worth it for severe-allergy or immunocompromised households. Range: $1,800–$3,200 installed with the bypass.
UV coil sanitization.
UV-C lamps mounted near the evaporator coil prevent mold and biofilm from growing on the always-damp coil surface, which keeps airflow high and eliminates the musty smell that gets blamed on "the AC." We don't sell UV as a virus-killing tool — the in-duct science on that is mixed — but for coil sanitization, it's a worthwhile add. Range: $400–$650 installed.
Ventilation (ERV / HRV).
If your house was built after about 2015 it's probably tight enough that it doesn't breathe naturally. That means cooking smells, off-gassing, and CO2 build up. An ERV (energy recovery ventilator) or HRV (heat recovery ventilator) pulls stale air out, brings fresh outdoor air in, and recovers most of the heating or cooling energy in the heat exchanger. Most useful in newer-construction tight homes. Range: $1,800–$3,400 installed.
Cleaner air, drier basements, fewer allergy days. Sized to your system, not to our sales target.
Frequently asked.
Do I really need a whole-house humidifier in Indianapolis?
In winter, indoor humidity often drops to 15–20%. A whole-house humidifier holds it at 35–45%, which prevents dry skin, static, hardwood floor shrinkage, and respiratory irritation. Most homes built before 2010 don't have one and benefit from adding one.
What's the difference between a 1-inch and 4-inch filter?
A 4-inch has roughly 4× the surface area, captures finer particles, and lasts 6–12 months versus 30–60 days for a 1-inch. Costs more per unit but less per year, and your blower motor doesn't fight as hard against the restriction.
Are UV lights worth it?
For coil sanitization, yes — UV-C near the evaporator coil keeps mold and bacteria from growing on the damp coil surface, which improves airflow and reduces musty smell. For broader air-purification claims (killing airborne viruses), the in-duct science is mixed.
What does an ERV or HRV do?
They pull stale indoor air out and bring fresh outdoor air in, recovering most of the conditioning energy in the process. Most useful in tight, newer-construction homes that don't breathe naturally.
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