Custom On-chain Fee Rate for Loop Out?

Hi team,

I’m using Lightning Terminal on Umbrel to perform loop outs from the Lightning Network to on-chain BTC. A major issue I’m facing is the inability to manually set the on-chain fee rate.

The GUI only allows setting a confirmation target (starting from 100 blocks), which is too slow for my use case. I want the loop out to confirm as quickly as possible.

If I leave the field blank, the fee defaults to something like 1 sat/vbyte, which is way too low given the current network congestion. As a result, transactions get stuck in the mempool for a long time.

Is there a way—through Umbrel’s terminal, CLI, or config—to specify the exact fee rate (e.g., 15 sat/vbyte) manually?

Thanks!

Check the loop-out GUI, CLI, and configuration paths mentioned in the report, starting with how the confirmation target is passed to the operation. Compare those entry points with the requested explicit sat/vbyte value; done means the supported configuration or the required feature scope is clearly established.

Written by the indexing model from the issue text.