Time for cat #5!

[begreen]

With cat inflation also comes wood inflation. Can’t really guess whether either item will change. Cats have remained very steady.

The big “leap” is the 20% wood savings which is what I measured as have many other full time wood heaters but that’s variable. Wood usage efficiency over a winter is not equivalent to the steady state efficiency rating the epa gives a stove.

I understand that this is academic and just for fun.

The 20% improvement makes sense. This was compared to the Heritage which was sending a lot of heat up the flue. I can remember us discussing how much hotter the flue readings were compared to what I was seeing. At one point I even thought the flue thermometer was defective but then another Heritage owner reported similar flue temps.

 

[bholler]

I am sorry but by what metric does an old Fisher beat any of those stoves in efficiency? It's honestly just absurd

 

[Ashful]

I am sorry but by what metric does an old Fisher beat any of those stoves in efficiency? It's honestly just absurd

Wrong thread, bholler!

Time for a chimney liner?

To elaborate further on bholler's last sentence, modern stoves are more efficient than older stoves. Read "efficiency" as "more heat into your room, less heat up the chimney". With less heat going into the chimney, draft suffers, as heat is the engine that makes draft work. Big clay tile...

www.hearth.com

 

[Todd]

No need for guessing and there is still much more to this most recent study, just under limited release. Full study can be posted soon, once deemed "sharable".

Environment Canada just paid to have a VERY extensive study done on efficiencies, VOC's, black carbon etc. It is based upon an Italian cordwood test method. The finding are very interesting, especially given the regulators are really looking at VOC's. But this is a snip on the 93 tests they did as it relates to efficiency. (We can start a new thread once the entire study can be posted)

I think he was referencing this by BKVP

 

[begreen]

Efficiency testing talk moved to its own thread

Efficiency testing

Hijack moved from the cat #5 thread https://www.hearth.com/talk/attachments/efficiencies-pdf.316313/

www.hearth.com

 

[Ashful]

Efficiency testing talk moved to its own thread

Efficiency testing

Hijack moved from the cat #5 thread https://www.hearth.com/talk/attachments/efficiencies-pdf.316313/

www.hearth.com

Thanks for posting a link. 👍 Sometimes these tangents get dropped or lost when moved.