<html><head></head><body dir="auto" lang="en-GB" style="background-color: rgb(255, 255, 255); line-height: initial;"> <div style="width: 100%; font-size: initial; font-family: Calibri, 'Slate Pro', sans-serif, sans-serif; color: rgb(31, 73, 125); text-align: initial; background-color: rgb(255, 255, 255);">Dear Richard</div><div style="width: 100%; font-size: initial; font-family: Calibri, 'Slate Pro', sans-serif, sans-serif; color: rgb(31, 73, 125); text-align: initial; background-color: rgb(255, 255, 255);"><br></div><div style="width: 100%; font-size: initial; font-family: Calibri, 'Slate Pro', sans-serif, sans-serif; color: rgb(31, 73, 125); text-align: initial; background-color: rgb(255, 255, 255);">The Cat Pee Award refers to the patent application in the 1680's on the invention of the downdraft stove (J Stove) which bears the claim that it could burn without odour, the stinkiest fuel known to man which was 'coal soaked in cat piff'.</div><div style="width: 100%; font-size: initial; font-family: Calibri, 'Slate Pro', sans-serif, sans-serif; color: rgb(31, 73, 125); text-align: initial; background-color: rgb(255, 255, 255);"><br></div><div style="width: 100%; font-size: initial; font-family: Calibri, 'Slate Pro', sans-serif, sans-serif; color: rgb(31, 73, 125); text-align: initial; background-color: rgb(255, 255, 255);">A version of the combustion system was incorporated into the Franklin stove in 1742 by famous Benjamin. It has a sort of angled downdraft combustion that is a cross between the original and a crossdraft burner. </div><div style="width: 100%; font-size: initial; font-family: Calibri, 'Slate Pro', sans-serif, sans-serif; color: rgb(31, 73, 125); text-align: initial; background-color: rgb(255, 255, 255);"><br></div><div style="width: 100%; font-size: initial; font-family: Calibri, 'Slate Pro', sans-serif, sans-serif; color: rgb(31, 73, 125); text-align: initial; background-color: rgb(255, 255, 255);">Downdraft stoves were made in places as far flung as Mongolia (1906) and Pretoria (2005). </div><div style="width: 100%; font-size: initial; font-family: Calibri, 'Slate Pro', sans-serif, sans-serif; color: rgb(31, 73, 125); text-align: initial; background-color: rgb(255, 255, 255);"><br></div><div style="width: 100%; font-size: initial; font-family: Calibri, 'Slate Pro', sans-serif, sans-serif; color: rgb(31, 73, 125); text-align: initial; background-color: rgb(255, 255, 255);">By inverting the downdraft stove the same result can be obtained if one is willing to give up the facility of refuelling. We know them as TLUDs or IDD combustors. </div><div style="width: 100%; font-size: initial; font-family: Calibri, 'Slate Pro', sans-serif, sans-serif; color: rgb(31, 73, 125); text-align: initial; background-color: rgb(255, 255, 255);"><br></div><div style="width: 100%; font-size: initial; font-family: Calibri, 'Slate Pro', sans-serif, sans-serif; color: rgb(31, 73, 125); text-align: initial; background-color: rgb(255, 255, 255);">Regards </div><div style="width: 100%; font-size: initial; font-family: Calibri, 'Slate Pro', sans-serif, sans-serif; color: rgb(31, 73, 125); text-align: initial; background-color: rgb(255, 255, 255);">Crispin, an admirer of downdraft</div><br><div id="_originalContent" style=""><meta http-equiv="content-type" content="text/html; charset=utf-8"><div><p>And the cat pee award Approvecho : How did that originate? </p><p>To wit, this recent story from NPR;</p><p>Phosphorus Starts With Pee In This Tale Of Scientific Serendipity<br>by Adam Cole</p><p>NPR - February 2, 2016</p><p>The history of science is full of happy accidents — most folks have heard that penicillin was discovered in 1928, when a few mold spores landed on some neglected petri dishes in a London lab. But sometimes serendipity's role is a bit less ... mainstream....</p><p><a href="http://www.npr.org/sections/health-shots/2016/02/02/465188104/phosphorus-starts-with-pee-in-this-tale-of-scientific-serendipity?sc=17&f=1001&utm_source=iosnewsapp&utm_medium=Email&utm_campaign=app">http://www.npr.org/sections/health-shots/2016/02/02/465188104/phosphorus-starts-with-pee-in-this-tale-of-scientific-serendipity?sc=17&f=1001&utm_source=iosnewsapp&utm_medium=Email&utm_campaign=app</a></p></div><br><!--end of _originalContent --></div></body></html>