Probably most new heaters have oxygen sensors, I know the Big Buddy says it= does. I don't know where it's located, but I assume it's integrated into t= he tipover switch. Bob ________________________________________ From: piclist-bounces@mit.edu on behalf of Allen = Mulvey Sent: Tuesday, November 28, 2017 7:16 PM To: 'Microcontroller discussion list - Public.' Subject: RE: [OT] Best garage heating option Much of the need for a "well ventilated area" is not so much for fear of CO but rather a need for fuel. In a well sealed environment you can burn off all your oxygen and asphyxiate yourself. Allen -----Original Message----- From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of Sent: Tuesday, November 28, 2017 9:33 PM To: piclist@mit.edu Subject: Re: [OT] Best garage heating option RussellMc wrote: > On 28 November 2017 at 18:49, Gary Crowell wrote: > >> Kerosene? >> https://www.northerntool.com/shop/tools/product_200664955_20 0664955 >> >> Never used one, was wondering. >> >> I've never met a kerosene heater that did not smell like a kerosene >> heater when operating. >> Modern ones may be different. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .