Veg Heat Exchanger

[Harky]

Regarding the "penny" mod, how the hell do you persuade the stat to let go of the housing?

Is there a spring locking washer thing? you need to prise that out and then the stat should just pull out?

[Poodle]

Should, but doesn't. Why is nothing easy? :angry-banghead:

Anyone know the size of the o-rings that go around the bottom of the housing? Looks to me to be 66mm x 4mm, but be nice to know for sure.