A vented range hood pulls cooking exhaust, grease, and moisture through ductwork and pushes it outside the house. A recirculating hood (the microwave-combo type I find in most pre-2010 Colorado Springs kitchens) just runs the air through a charcoal filter and blows it back into the room, doing nothing about heat, moisture, or the fine particles and combustion gases that are the real air quality concern, especially with a gas range. Installation runs $300–$3,000+ depending on scope, from a straight hood swap on existing ductwork up to a full new duct run through an exterior wall, interior wall, or ceiling.
Why Do Recirculating Hoods Fall Short?
Most homeowners assume their range hood is doing the job. In my experience walking into these kitchens, it usually isn’t.
Recirculating hoods (also called ductless hoods) pull air through a filter and recirculate it back into the kitchen. The charcoal filter catches some grease and reduces some odors. What it doesn’t remove: heat, moisture, and the fine particles produced by cooking on any stove type.
A 2012 study by Lawrence Berkeley National Laboratory modeled California homes where people cook with gas regularly. It found that in winter, when homes are sealed up tightest, about 60% of them had indoor nitrogen dioxide levels high enough to break the legal limit for outdoor air. Cooking on any stove, gas or electric, creates fine particles (called PM2.5, particulate matter small enough to breathe deep into your lungs). Gas burners add nitrogen dioxide, carbon monoxide, and formaldehyde on top of that, all byproducts of the flame itself. A recirculating filter doesn’t deal with any of this. It just runs the air through a charcoal pad and blows it back into the room.
A vented hood solves this at the source. The air gets pulled up, moved through ductwork, and exhausted outside. Grease, smoke, moisture, heat, and combustion gases leave the building instead of recirculating through your kitchen and into the rest of the house.
What’s the Colorado Springs Kitchen Problem?
There are three things I’ve found make kitchen ventilation more relevant here than in most markets.
Grease accumulation. Colorado’s air is very dry (indoor winter humidity often runs just 10 to 20 percent, well below the 30 to 50 percent common in more humid climates). In a kitchen without proper venting, airborne grease from cooking doesn’t stay wet and easy to wipe up for long. It dries fast and settles onto cabinets, the backsplash, the walls, and the range itself. Over the years, it builds into a film that’s hard to clean and can even become a fire hazard (I’ve scraped enough of this off cabinet undersides to know it’s not an exaggeration). Proper venting pulls that grease outside before it has a chance to settle.
Gas ranges are common. A large share of Colorado Springs homes have gas ranges, from newer subdivisions like Briargate to older, established neighborhoods like Broadmoor and Old North End. Gas combustion produces nitrogen dioxide and carbon monoxide on top of the cooking particles that any stove produces. These gases irritate the lungs and airways, and studies have documented real health effects at the levels produced by indoor cooking without ventilation. Venting directly addresses this.
Ranch-style homes have easy duct paths. Colorado Springs has a high proportion of ranch-style and split-level homes. Many of these have a straight shot from the range to an exterior wall: just 3 to 6 feet of duct run, no cutting through the ceiling, no complicated routing. That makes vented hood installation simpler and less expensive here than in markets dominated by two-story builds with interior kitchens (most of the straightforward installs I do in these ranch-style neighborhoods wrap up in an afternoon).
What Are the Types of Vented Range Hoods?
Under-cabinet hood. The most common residential option. Mounts to the underside of the cabinet above the range and connects to ductwork running through the cabinet and out the wall or up through the cabinet and ceiling. Straightforward to install in most Colorado Springs kitchens with exterior wall access.
Wall-mounted chimney hood. For ranges on walls without upper cabinets. The hood mounts directly to the wall with a decorative chimney extending to the ceiling. Ductwork runs up through the chimney to the ceiling or out the wall. A popular option in kitchen remodels where upper cabinets have been removed above the range.
Island hood. Hangs from the ceiling above a cooktop on a kitchen island. Requires ductwork through the ceiling joists (the framing boards above the ceiling). This is the most complex residential installation, and the cost is significantly higher than wall or under-cabinet options.
Insert/liner. A blower unit installed inside a custom or decorative hood enclosure. Common in higher-end kitchen remodels where the hood is a design feature built by a carpenter with a commercial-grade blower installed inside.
What Size Hood Do You Need?
Range hood capacity is measured in CFM, which stands for cubic feet per minute. The right CFM depends on your range type and kitchen size.
| Situation | Recommended CFM |
|---|---|
| Electric range, standard kitchen | 200 – 300 CFM |
| Gas range, standard kitchen | 300 – 400 CFM |
| High-output gas range (professional style) | 600 – 900 CFM |
| Island installation (add for open volume) | +100 – 150 CFM |
One important limit: residential range hoods above 400 CFM can cause negative pressure problems. That means the hood pulls so much air out of the house that it can suck combustion exhaust back down fireplaces, water heaters, and furnace flues instead of letting it vent outside, which is a safety hazard. Homes with a high-output gas range that needs 600 CFM or more should have a makeup air system (a vent that brings in outside air to replace what the hood pulls out) installed at the same time. This is not a common conversation, but it matters in Colorado Springs homes with gas fireplaces and older HVAC systems.
The sweet spot for most Colorado Springs kitchens is 300–400 CFM: enough to handle gas cooking well without creating pressure problems.
What Does Vented Range Hood Installation Involve?
Replacement (Existing Ductwork)
The simplest scenario. An existing ducted hood is being swapped for a new one using the same duct connection and electrical outlet.
What’s involved:
- Disconnect and remove old hood
- Mount new hood to cabinet or wall
- Connect to existing ductwork
- Wire to existing outlet or junction box
- Test airflow and verify the exterior damper opens (the damper is the flap that lets air out and blocks it from blowing back in)
Time: 1–2 hours
Cost: $300–$850 including the hood unit
New Installation: Exterior Wall (No Existing Duct)
The most common scenario in Colorado Springs homes that have never had a vented hood. The range is on an exterior wall or close to one, and duct runs straight through the cabinet and wall.
What’s involved:
- Remove existing recirculating hood or OTR (over-the-range) microwave
- Install new hood or mount new hood in cabinet
- Cut through cabinet base and exterior wall for the duct
- Install duct run (typically 6-inch round or 3.25 x 10-inch rectangular)
- Install exterior wall cap with backdraft damper
- Wire to existing outlet or run new circuit
- Seal penetration inside and out
Time: 3–5 hours
Cost: $800–$1,800 including hood, ductwork, and labor
New Installation: Interior Wall or Ceiling Route
When the range is on an interior wall and ductwork must travel horizontally through cabinets then up through the ceiling, or route through an adjacent space to reach the exterior.
What’s involved:
- Everything above, plus additional duct runs and possible ceiling work
- May require cutting through drywall and patching
- More elbows and turns reduce airflow, so the hood’s CFM rating needs to account for this
Time: 4–8 hours
Cost: $1,200–$2,500+ depending on route complexity
Island Hood Installation
The most involved residential installation. Ductwork must run through ceiling joists and either exit through the roof or travel to an exterior wall. Both routes require significant ceiling work.
Cost: $1,500–$3,000+ including hood and installation
What Ductwork Details Matter?
A vented hood is only as effective as its duct run. A few things that affect performance:
Keep turns to two or fewer. Every 90-degree elbow (a bend in the duct) cuts down on airflow. A hood rated at 400 CFM with three elbows might only deliver about 280 CFM at the outside cap. Ask for elbows with a smooth, wide curve instead of a sharp turn, and keep the duct run as straight and direct as possible.
Use the right duct diameter. Most residential hoods take 6-inch round duct or 3.25 x 10-inch rectangular duct. Going down to 4-inch duct cuts airflow a lot and makes the hood louder. Match the duct size to the hood’s collar (the round opening on top of the hood where the duct connects).
Exterior cap with backdraft damper. The wall or roof cap needs a damper that closes when the hood is off. Without it, cold Colorado air (and sometimes insects) can come back through the duct in winter. This is a small detail that gets skipped on cheap installations, and it creates a noticeable draft.
No flex duct. Flexible aluminum duct is tempting because it’s easy to route around obstacles. But it’s also louder, it traps grease in its ridged folds, and it cuts down on airflow. Rigid duct with smooth, wide-curve elbows is the right call.
What Permits Are Required in Colorado Springs?
Mechanical permit (PPRBD): Required when adding new ductwork. The permit process is straightforward for a standard range hood install: plan review is minimal, and inspection is typically a single check during rough-in (before the walls are closed up).
Electrical permit: Required if a new circuit or outlet is being added. Many hood replacements use an existing outlet and don’t trigger this.
Simple replacement: Usually no permit required if you’re swapping a hood on existing connections with no new ductwork.
When in doubt, call PPRBD (I make that call myself before I cut into a wall). A $100–$150 mechanical permit is not worth skipping. It makes sure the installation is done correctly and doesn’t create a problem when you sell the house.
What Should You Expect From the Upgrade?
The difference between a recirculating hood and a vented one is immediately noticeable. The kitchen clears faster. Cooking smells don’t linger into other rooms. The cabinets above the range stop accumulating that film of dried grease. In winter, when Colorado Springs homes are sealed up tight against the cold, the air quality difference is most noticeable. Cooking pollutants that used to recirculate through the house now get vented outside instead.
For homes with gas ranges, the upgrade is more than a comfort improvement. It’s the difference between cooking in a ventilated space and cooking in one where combustion byproducts have nowhere to go.
Most Colorado Springs kitchens, particularly the ranch-style homes that make up a large share of the housing stock, can be vented with a straightforward exterior wall installation. It’s one of the higher-value upgrades available for the cost.
Jonathan Shea is the owner of The Colorado Handyman, serving Colorado Springs and the Pikes Peak region. He has installed vented range hoods in dozens of Colorado Springs homes, including conversions from OTR microwaves and recirculating hoods. Flat-rate written estimates, no hourly billing surprises. Licensed and insured with $2M general liability coverage.
Get a free written estimate: Contact The Colorado Handyman or call (719) 243-9718.
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