mmm forgot abt this until last couple of days....

new boiler exhaust sited under a well-positioned PIR for (seperate,
distantly mounted) outside lights.

When the boiler's burning and outside light level is low (i.e. all
winter!) the steam plume/exhaust triggers the PIR and all the outside
lights come on like a f-in Xmas tree....

Now that particular PIR sensor's wiring goes through the boiler room/
area -

What would it take to dream up some sort of "interlock" to temporarily
switch off/disable that PIR when the boiler is firing...or is moving
the PIR from it's favoured location the only way?

NB there is another PIR on the same circuit and having that and the
lights still operational would be preferred

TIA
cheers
JimK