Woodburner...

[Billhook]

26 minutes ago, Stubby said:

Can't see anything .

I have had this problem before putting a video directly on a thread.  Some can see it and some cannot

i usually have to put them on YouTube 

 

Anyway this is the Rumford after an hour an a half with no wood added

[Billhook]

Just been on the roof and the temperature of the chimney pot is 7 degrees, so the efficiency of the Rumford is 500/7 x 100 or about 7000%.  I am only following the science just like Boris and I am sure it is just as accurate!

[Stubby]

56 minutes ago, topchippyles said:

Put your specs on musch 👍

Nope . Just the stop start of the vid but no clip .

[Stubby]

44 minutes ago, Billhook said:

I have had this problem before putting a video directly on a thread.  Some can see it and some cannot

i usually have to put them on YouTube 

 

Anyway this is the Rumford after an hour an a half with no wood added

Again . Nothing .

[john87]

34 minutes ago, Billhook said:

Just been on the roof and the temperature of the chimney pot is 7 degrees, so the efficiency of the Rumford is 500/7 x 100 or about 7000%.  I am only following the science just like Boris and I am sure it is just as accurate!

Would that not be 7/500 = 0.014 x 100 = 1.4

 

So 100 - 1.4 = 98.6%

 

Mind you TEMPERATURE is entirely different to heat.. Think of this, to heat the surface of a material with a very low specific heat capacity that was a good insulator to 500 degrees, would take very little heat, but to warm up the entire brickwork of your house to 7 degrees [from nothing] would take an awful lot of heat [for not a lot of temperature change]

 

Still, beats the heck out of having an insulated flue and having 500 degree flue gasses, [and a toasty warm sky!]

 

john..

[Billhook]

16 minutes ago, john87 said:

Would that not be 7/500 = 0.014 x 100 = 1.4

 

So 100 - 1.4 = 98.6%

 

Mind you TEMPERATURE is entirely different to heat.. Think of this, to heat the surface of a material with a very low specific heat capacity that was a good insulator to 500 degrees, would take very little heat, but to warm up the entire brickwork of your house to 7 degrees [from nothing] would take an awful lot of heat [for not a lot of temperature change]

 

Still, beats the heck out of having an insulated flue and having 500 degree flue gasses, [and a toasty warm sky!]

 

john..

Maths was never my strong point, but like Boris

Can you see the videos and if so can you explain why Stubby cannot see them?

Here is the Rumford after two hours with nothing added 

[john87]

5 minutes ago, Billhook said:

Maths was never my strong point, but like Boris

Can you see the videos and if so can you explain why Stubby cannot see them?

Here is the Rumford after two hours with nothing added 

No, i cannot see anything either..

 

john..

[gary112]

8 hours ago, Stubby said:

Again . Nothing .

Ya want some of these 👓👓

[Billhook]

31 minutes ago, john87 said:

No, i cannot see anything either..

 

john..

I will set about making a video on youtube tomorrow

[trigger_andy]

No, i cannot see anything either..
 
john..

Don’t worry, Les has not been able to see much since he was 13 due to his personal habits. He just pretends he can to fit in.