old honeywell #2 relief valve is it filled with mercury

mikedo

one of my plumber friends has an old honeywell #2 relief valve its 3ft tall and looks like theres a spaceship on top i think they are filled with mercury does anyone know if that is true

EBEBRATT-Ed

Yes they have mercury in them

bburd

A.k.a. the Honeywell heat generator. Yes, full of mercury.

mikedo

anyone know where to dispose of it properly

Jamie Hall

mikedo said:

anyone know where to dispose of it properly

Contact your State environmental protection people -- they will be able to guide you to a contractor or site who will be able to handle it. For, I might add, usually a handsome fee.

JUGHNE

If allowed to tip over might spill out mercury....a lot of it.

Many government agencies have an "amnesty" day every 30-60 days at some collection point.
Ours will take mercury, lead, small batteries etc.

CLamb

JUGHNE said:

If allowed to tip over might spill out mercury....a lot of it.

Many government agencies have an "amnesty" day every 30-60 days at some collection point.
Ours will take mercury, lead, small batteries etc.

You might want to heat seal it in a sturdy plastic bag just in case.

Here is an example of how you could dispose of it in Union County, New Jersey. Just label it a "mercury switch" which it is but not electrical.

Erin Holohan Haskell

Here's a video on the Honeywell Heat Generator: https://heatinghelp.com/systems-help-center/honeywells-heat-generator/

And a podcast episode: https://heatinghelp.com/dead-men-tales/a-50000-dollar-mistake/