Air Filters North Grenville (Kemptville)

Serving Kemptville, Oxford Mills & Burritts Rapids

Pleated furnace, heat pump and commercial HVAC filters for North Grenville – from new Kemptville subdivisions to century farmhouses along the Rideau – manufactured in Brampton and shipped to your door.

  • ✓ Made in Canada
  • ✓ Custom sizes
  • ✓ MERV 8 · 11 · 13
  • ✓ No customs or duties
Delivery to North Grenville (Kemptville)$25 flat rate
Typical delivery3–9 business days
Made & shipped fromBrampton, Ontario
Family relaxing together in a bright, clean living room

Air quality in North Grenville (Kemptville)

  • Highway 416 traffic
  • Wood stove smoke
  • Ragweed & hay pollen
  • Wildfire smoke
  • Field & gravel road dust
  • Humid river valley summers

North Grenville sits astride Highway 416, the main link between Ottawa and the 401, so Kemptville's west side sees a steady flow of commuter cars and transport trucks. Away from the highway, though, the township is quiet farmland, cedar bush and small hamlets like Oxford Mills, Bishops Mills and Heckston, where the bigger air quality factors are seasonal: dust from gravel concession roads and fieldwork in spring and fall, and the smell of manure spreading on nearby dairy and cash-crop farms.

Kemptville Creek winds through the middle of town before joining the Rideau River, and the low, wet ground along both waterways keeps summer humidity high. That suits mould spores in late summer and fall, and the open fields that surround Kemptville grow plenty of ragweed and grass pollen. Spring brings heavy tree pollen too – the township's woodlots and the Ferguson Forest Centre's plantations are beautiful, but maple, poplar and pine pollen finds its way into every house with an open window.

Eastern Ontario also gets its share of wildfire smoke. In the summer of 2023, smoke from the Quebec fires drifted across the Ottawa Valley and pushed air quality advisories well into the high-risk range for days at a time. In winter, the haze is closer to home: many North Grenville households heat partly or entirely with wood, and on cold, still mornings that smoke settles in the creek valley and slips into neighbouring houses through fresh-air intakes.

North Grenville (Kemptville) climate, homes & HVAC systems

Winters here are noticeably colder and snowier than in the GTA, with long stretches below −20 °C in January and a heating season that runs from October well into May. Summers are warm and humid enough that most newer homes have central air or a cold-climate heat pump. Either way, the furnace or air handler fan runs for much of the year, and the filter is doing work in every season.

Housing in North Grenville is a real mix. Kemptville's newer subdivisions have high-efficiency gas furnaces, HRVs and often 4- or 5-inch media cabinets, while older homes in the village core and out on the concessions may run oil or propane furnaces with a basic 1-inch slot. Rural properties are almost all on private wells and septic, many use a wood stove or outdoor wood furnace as primary or backup heat, and a growing number have added ducted heat pumps to cut fuel costs.

Recommended for North Grenville (Kemptville)

MERV 11 for most homes, MERV 13 in smoke season

A pleated MERV 11 filter handles farm dust, pollen and pet dander well without choking older oil or propane furnaces. Move to MERV 13 if you burn wood, live close to the 416, or have anyone at home with asthma – and keep a spare on the shelf for wildfire smoke advisories.

Shop MERV 11 →   Shop MERV 13 →

Seasonal filter tips for North Grenville (Kemptville)

  • Spring: Swap in a fresh filter in April when tree pollen and dust from drying concession roads arrive together.
  • Summer: Close up and run the AC on humid or smoky days so the filter, not an open window, handles the air.
  • Fall: Change the filter after harvest and manure season, before the furnace takes over in October.
  • Winter: If you heat with wood, check the filter monthly – stove smoke and ash load filters faster than gas heat alone.

Which MERV rating is right for your North Grenville (Kemptville) home?

MERV (Minimum Efficiency Reporting Value) measures how well a filter captures particles of different sizes under the ASHRAE 52.2 test standard. Higher numbers catch smaller particles. Most residential furnaces in Canada run well on MERV 8 to MERV 13 – here is how to choose:

Rating What it captures Best for
MERV 8 Dust, lint, pollen, mould spores and larger particles (3–10 microns) Budget-friendly everyday protection, rental units, new-build dust
MERV 11 Everything MERV 8 does plus pet dander, fine dust and some smoke (1–3 microns) Most family homes, pets, seasonal allergies
MERV 13 Fine particles down to 0.3–1 micron, including much of the PM2.5 in wildfire smoke Asthma, allergies, wildfire smoke, newborns and seniors

Not sure? Read our complete MERV rating guide. If you are moving up to MERV 13 on an older furnace, a deeper 2-inch or 4-inch filter keeps airflow healthy.

Popular furnace filter sizes in North Grenville (Kemptville)

Older farmhouses and oil furnaces in the township usually take a 1-inch filter like 16x25x1 or 20x20x1, while newer Kemptville homes often have a 4-inch or 5-inch media cabinet.

How to measure: the size printed on the filter frame (e.g. 16x25x1) is the nominal size; the real filter is usually about ½" smaller (15½ x 24½ x ¾). Order by the printed size, or measure your old filter and use our size search. Odd size? We build special and custom sizes to order.

How often to change your furnace filter in North Grenville (Kemptville)

Filter depth Typical home Pets, allergies or smoke
1-inch Every 1–3 months Every 30–45 days
2-inch Every 3–4 months Every 2 months
4-inch Every 6–9 months Every 4–6 months
5-inch Every 9–12 months Every 6 months

Rural North Grenville homes with gravel driveways, pets or a wood stove should check filters every month in winter and after spring fieldwork, when dust levels peak. See the full filter changing guide.

Dirty used furnace filter beside a new clean pleated filter
A clogged filter (left) restricts airflow and makes your furnace work harder.

Air filters for North Grenville (Kemptville) businesses & property managers

North Grenville's commercial base is growing fast along County Road 43 and the 416 interchanges: retail plazas, restaurants, light industrial units, schools, the Kemptville District Hospital, long-term care and retirement homes, and the education and community tenants on the former agricultural college campus. Farms, equipment dealers and municipal buildings round out the list, and all of them run furnaces, rooftop units or air handlers that need regular filter changes.

We supply facility managers, contractors and farm operators across the township with pleated, pocket and panel filters in bulk. Set up a business account and we can ship the right sizes on a schedule, so you are never stuck waiting on an order when a rooftop unit is overdue.

Shipping & delivery to North Grenville (Kemptville)

Orders to North Grenville (Kemptville) ship for a $25 flat rate, and orders of $2,500 or more ship free. Most orders arrive in 3–9 business days.

Standard sizes are usually made and shipped within 1–2 weeks; custom sizes can take up to 3 weeks. Prefer to collect? Free pickup is available Monday to Friday, 7:00 AM – 4:30 PM at 15 Melanie Drive, Brampton. Full details are on our shipping & returns page.

Why North Grenville (Kemptville) customers choose Canadian Air Filters

Canadian Air Filters production floor in Brampton, Ontario
Made in BramptonWe manufacture our filters in Ontario – not a reseller shipping from overseas.
Tested ratingsMERV ratings based on ASHRAE 52.2 testing, so you get the filtration you pay for.
Any sizeOver 1,800 filters online in standard and special sizes, plus custom sizes made to order.
Real peopleQuestions? Call 905-867-3667 or email info@canadianairfilters.com.

Areas we deliver to in North Grenville (Kemptville)

Kemptville · Kemptville village core · Oxford Mills · Oxford Station · Bishops Mills · Burritts Rapids · Heckston · Actons Corners · Kemptville Creek area · Rideau River shoreline · County Road 43 corridor · Highway 416 corridor

Nearby location pages: Ottawa, Clarence-Rockland, Russell Township, Merrickville-Wolford, Beckwith Township, Carleton Place, Mississippi Mills (Almonte), Montague Township, McNab/Braeside, Arnprior, Horton Township, Renfrew, Whitewater Region, Laurentian Valley, Pembroke, Smiths Falls, Perth, Drummond/North Elmsley. Or see all locations we deliver to.

North Grenville (Kemptville) air filter FAQ

What MERV filter should I use in a Kemptville home?

MERV 11 is the best all-round choice for most Kemptville homes, catching pollen, farm dust and pet dander. Use MERV 13 if anyone has asthma, if you live near Highway 416, or during wildfire smoke advisories.

Will a better furnace filter help with wood stove smoke?

A MERV 13 filter captures a large share of the fine particles in wood smoke once they reach your ductwork. It works best if your furnace fan circulates air while the stove is burning, and paired with a well-sealed stove and chimney.

My farmhouse has an oil furnace – can it handle a pleated filter?

Yes. Most oil furnaces run fine on a pleated MERV 8 or MERV 11 filter. If you want MERV 13 on an older unit, ask your HVAC technician about upgrading to a deeper 2-inch or 4-inch filter rack to keep airflow healthy.

Do I still need a filter if I have an HRV?

Yes. The HRV brings in fresh outdoor air, but your furnace or air handler filter still cleans the air circulating through the house. Many HRVs also have their own small filters that should be cleaned or replaced a few times a year.

Does North Grenville get wildfire smoke?

It does. Smoke from fires in Quebec and northern Ontario reached the Ottawa Valley repeatedly in 2023. Keeping a spare MERV 13 filter on hand means you can upgrade the moment an advisory is issued.

Can a filter help with dust from a gravel road?

Yes – pleated filters trap road and field dust that drifts in through doors and windows. Homes on gravel roads should check their filter monthly in dry spells and plan on changing it more often than town homes.

How much does shipping to North Grenville (Kemptville) cost?

Orders to North Grenville (Kemptville) ship for a $25 flat rate, and orders of $2,500 or more ship free. Most orders arrive in 3–9 business days.

Can you make custom-size filters for my North Grenville (Kemptville) home or building?

Yes. Because we manufacture in Brampton, we can build non-standard and custom sizes to order – usually within about 3 weeks. Use our custom filter form or email info@canadianairfilters.com with your dimensions and MERV rating.

Helpful air quality guides

Ready to breathe better in North Grenville (Kemptville)?

Made in Brampton · $25 flat rate · standard & custom sizes.