Venting for gas fireplaces in Harbour Inlet, checked end to end
Termination caps replaced to the vent maker's listing and set to the manual's clearances.
- Owned and run locally
- Available for same-day service
- Fully licensed and insured
- Family owned and run
When the gas fireplace vent is the suspect
- Plants grown over the termination
- Water marks around the wall penetration
- Fire behaves oddly when fans run
- Unknown vent parts after a renovation
Jump to
From the appliance collar to the termination cap
How a direct-vent system is put together
Nothing passes between a direct-vent fireplace and the room it heats. Air for the fire comes in from outside through one passage of the vent, usually a pipe within a pipe, and combustion products leave through the other. One termination handles both, on a wall or on the roof.
Because the system is sealed and balanced, every joint, gasket and fitting matters. The appliance manual lists the vent systems it has been tested with, along with lengths, elbows and terminations. Our vent work keeps to that list, so the sealed assembly behaves as it did when it was listed.
Negative pressure inside the house
A natural-draft fireplace depends on the pressure inside the house. Range hoods, bath and kitchen fans, dryers and other fuel-burning equipment can all pull on the house. So can poorly placed air returns, an unbalanced air handler and leaks in the upper floors, according to one appliance manual.
If your fireplace behaves differently when other equipment runs, tell us. We can test the draft under those conditions and explain the result. Fixes on the house side, such as makeup air or sealing leaks, belong to other trades. We note them clearly so the vent is not blamed for a building problem.
Painting exterior galvanized vent parts
One vent maker explains that outdoor galvanized parts last longer and look better when painted properly. Oil and dirt are removed first, then a primer recommended for adhesion to galvanized steel goes on before the finish coat.
If exposed vent parts are rusting or peeling, we explain whether painting is enough or whether the part has corroded too far. Paint work is not a substitute for a failed part. Where replacement is needed, the listed part is quoted, and finishing it is noted on the estimate.
Restoring finishes after vent access
After a concealed vent section is repaired, the opening used to reach it has to be closed. That can involve framing, drywall, plaster, tile or exterior siding, depending on where the access was made.
We explain who restores each finish before the work begins. Simple closures may be part of our scope, while decorative finishes usually go to a finish trade. Matching an existing paint or texture exactly can be difficult, and we say so in advance rather than after the wall is open.
Vent repair items listed before approval
- Concealed sections recorded as not seen
- Wall penetration seal
- Restrictor setting against the route
- Joint locking to the vent instructions
Gas venting questions for Harbour Inlet homes
Is a decorative shroud allowed over the termination?
Only a listed decorative cap or shroud made for your vent system. The manuals warn that decorative covers can change the clearances a cap needs, so we check the listing and the clearances before fitting one.
What is a draft check on a natural-draft fireplace?
After warm-up, a test at the draft hood relief opening shows which way the exhaust is moving, up the vent or back out into the room. We carry it out during vent work on draft-hood appliances.
Do exhaust fans affect my gas fireplace vent?
They can on a natural-draft unit. Exhaust fans, dryers and range hoods can lower indoor pressure and weaken draft. We can check the draft with them running and explain what the check shows.
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Chimney & Fireplace Brands We Work With
DuraVent 
Olympia Chimney and Venting 
Copperfield Chimney Supply 
Rutland 
Heatilator 
Heat & Glo