Oil supply lines and Tigerloop devices: keeping air out of the fuel line

A Tigerloop de-aeration device: engineer's shortlist

• Air in the oil line causes erratic firing, noise or ignition failure
• A Tigerloop continuously separates air rather than needing manual bleeding
• Long or below-burner-level supply runs benefit from one most
• Fitting a de-aerator can convert a two-pipe system to effectively one-pipe
• Genuine oil leaks at fittings still need finding and fixing separately

Where a Tigerloop de-aeration device usually comes from

A Tigerloop sits in the supply line close to the burner and uses a small internal reservoir to separate air from oil before the fuel pump draws it through, effectively self-bleeding the line continuously rather than relying on the installer getting every joint perfectly airtight. It is particularly valuable on long supply runs, tanks positioned below the burner, or older two-pipe systems being converted or repaired.

Where we deal with this

• Staverton (BA14) · 11 mi
• Westwood (BA15) · 10 mi
• Bathampton (BA2) · 9 mi
• Shoscombe (BA2) · 3 mi
• Kilmersdon (BA3) · 2 mi

Questions we get asked

Does a Tigerloop fix a genuine oil leak?

No — it manages air already in the line but does not stop oil escaping from a leaking joint, which still needs repairing directly.

Is fitting one worth it on an older system?

Often yes, especially where nuisance lockouts or noisy burner start-up have been a recurring problem.