About This Service
Confirm Fit Before Choosing the Product
Outlet shape, dimensions and fitting method determine cap selection. A photograph can suggest a style but cannot confirm compatibility. Twin assesses the termination before specifying the replacement; homeowners can describe the concern from the ground and leave elevated measurements to the service visit.
Check the Single-Flue Fitting
A single-flue cap is selected for an individual outlet. The shape, exposed termination and intended fitting method matter more than a rough visual width. Ask whether the quoted product attaches to that outlet or requires a different supporting arrangement before an order is finalized.
Identify Unusual Outlet Shapes
A nonstandard-looking termination should not be forced into the closest familiar product size. Its shape and system identity need assessment. Keep an available model or old part description for the visit; final fit should be established at the outlet rather than inferred from the ground.
Identify the Available Mounting Surface
The visible outlet may not provide the same mounting surface as the product shown in an online example. Selection should follow the actual termination and relevant instructions. Ask which part will carry the attachment and whether additional component work is needed.
Name the Features in the Selected Product
Rain protection, screening and spark-arresting functions should not be assumed from the word cap alone. Ask the proposal to identify the intended product and features. The suitable arrangement depends on the connected system and applicable requirements, not an improvised mesh choice.









