Hornet 5000 eco heat exchanger...constantly buzzing

[voivod]

Mate I used to work with went to service a boiler ...
Anyone else seen this type of heat exchanger?

 

[Chalked]

Amazing!
must have been turned off for some time.

 

[snoopy8888]

free fresh honey

 

[lame plumber]

ooh honey in the bottom of that comb. Reminds me of when my kids were small, went for a walk and found a tree hit by lightning split in 2, exposing a massive bees nest, all the bees were scrabbling to save their honey and what was left of their brood, but if you were careful you could nip in and break off hoge lumps of honey filled comb. we popped back a couple of days running with a bucket and cleared away about 30 pounds of comb. A week later it was all gone, foxes and other critters has a lovely feed.

 

[PhoenixServices]

Probably had 3 llgsc done on that with it in there.