Buderus Panel Radiator bleed key?

TAG

Anybody know the proper "key" size needed ?

A leaking manifold took out my hot water heating system (Panels/ Radiant) .. other than pump replacements the heat side has never been opened up since I installed in back in 1993. Got it back together but had to get it going w/ power flushing (boiler hot)

Couple of the third floor panels are only partially hot. For whatever reason some of the bleed valves have a slit for a screwdriver and some don't. Murphys law here ... need to bleed those that .... don't.

Buderus must not supply the key w/ the unit or I would have a few dozen of them around.

kcopp

You can get a key that does that. https://www.supplyhouse.com/Apollo-Valves-H240400-Radiator-Bleeding-Key
The US ones are a bit wimpy.
The ones from the UK are much better.

TAG

kcopp --- Thanks --- Did see that one and I always need something from SH. It's backordered

Tried a small needle nose plier on one of the bigger units --- it worked but the plastic ring cracked. Not really a good fix -- not much air came out either?

Turning the Danfoss heads up on all the units has the floor in the 70's ....the bypass valve on the units are all hot -- so I know the loops are working. With the temps going down into the teens I had to get the system back up and running. Both for heat and fear of any of the PEX freezing.

Big Ed_4

I seen the bleeder keys sold at Home Depot