Observations on the new Harman 52i Insert

[smwilliamson]

I love speculation lol.

Do we know what the new material is or the surface area?

Aluminum finned

 

[IHATEPROPANE]

Aluminum finned

Nice...this would explain the better efficiency. I believe aluminum is about 5x better at conducting heat than steel. I may be making that up since I don't know where I came up with that. But it is one of the top conductors.

 

[john193]

This site may be of some interest. Al is significantly better than stainless steel and only has about 59% of the conductivity of copper.

http://www.engineeringtoolbox.com/thermal-conductivity-d_429.html

 

[smwilliamson]

This site may be of some interest. Al is significantly better than stainless steel and only has about 59% of the conductivity of copper.

http://www.engineeringtoolbox.com/thermal-conductivity-d_429.html

There you go... My super conductive pellet stove yet to be designed will have a copper heat exchanger

 

[john193]

There you go... My super conductive pellet stove yet to be designed will have a copper heat exchanger

I think you should skip copper and go for a diamond heat exchanger...check out this link

http://www.engineersedge.com/heat_transfer/thermal-conductivity-metals-alloys.htm

 

[WoodPorn]

There you go... My super conductive pellet stove yet to be designed will have a copper heat exchanger

Maybe you can integrate it into a solar array as a conductor.
Chit...throw a battery in there too.

 

[Delta-T]

My issue with the hopper lid is that pellet get behind the lid very easily and then the lid won't close right but you cannot remove the pellets from under it either.

I actually thought this was far worse on the older, older accentra insert, before the hopper lid latch upgrade. the current one I just push the stragglers all the way back and when I close the lid they are behind the lid, rather than under the seal. the older one with the ball spring latch had a strange metal flap that help the stragglers hide from you.

 

[briansol]

There you go... My super conductive pellet stove yet to be designed will have a copper heat exchanger

great.. now our stoves are going to get robbed and sent to the scrap yard :/

 

[kinsmanstoves]

I still have not put my hands on one.

Eric

 

[Rock Crusher]

The heat exchanger plates on my new 52i are magnetic. Rules out aluminum, also my unit got very quiet after the third bag of pellets. Before that it did make some "extra" noises-thought I was going to have to do some investigating!