Our Process
Venting work for Lock Arbor gas fireplaces
Where the termination may sit
A wall termination has to keep its distance from openings and surfaces. Table 503.8 of the Florida fuel gas code sets direct-vent terminal clearances, including 12 inches above grade and a distance from openable windows and doors that grows with the appliance's input. DuraVent's instructions give their own figures, such as 12 inches above a deck or balcony and 18 inches below a ventilated soffit.
The appliance manual can set different distances again, and the installation has to meet every figure that applies. We measure the termination on your Lock Arbor home against the manual for the installed unit and the code, and we explain any shortfall and how it can be corrected.
A termination that stays clear
A wall termination must not be easily blocked or obstructed, DuraVent's direct vent instructions say, and the same instructions tell owners to look for bird nests and other foreign material during the yearly inspection. Shrubs that grow up around a cap, a stored ladder or a new fence can all interfere with it.
When we inspect the venting at your Lock Arbor home, our team checks the space around the cap as well as the cap itself and recommends trimming or moving what crowds it. Where only a relocated termination will solve it, we price that work.
How high a B-vent must rise
Florida's fuel gas code (section 503.6.6) requires a Type B gas vent to terminate not less than 5 feet in vertical height above the highest connected draft hood or flue collar, and section 503.6.7 requires it to end with a listed cap or listed roof assembly. DuraVent adds that pipe from 3 to 12 inches in diameter must end at least 2 feet higher than an adjacent wall or obstruction within 8 feet.
Height and the cap both affect how the vent draws. Our team checks the B-vent above your Lock Arbor roof against the roof pitch table in the vent instructions, the nearby walls and the code, and prices any extension or cap replacement it needs.
Roof flashing and storm collar on a B-vent
Where a B-vent passes through the roof, the Type B instructions call for a hole giving a 1 inch air space, a roof flashing fitted tightly to the roof with shingles overlapping its top edge, non-hardening sealant at the flashing base and at the pipe joint, and a storm collar over that joint for a watertight seal.
Water staining on the ceiling near a vent pipe can point to that flashing or collar. Our team checks the roof penetration for the B-vent serving your Lock Arbor fireplace and reseals or replaces the flashing and collar where needed.
