Greg,
Yes, those are some of the same reasons why I ended up with a small custom automotive type heater core w/fan. I was thinking that since my new muffler is made of inconel, and with a CO detector, it would be safe to pull some heat from around the tangential muffler.
An alternative may be to build a new automotive style heater but pay closer attention to the weight.
Mark
On Wed, Dec 16, 2009 at 12:32 PM, Greg Ward <gregw@onestopdesign.biz> wrote:
Hey Mark;
We've been looking at the same things with our install. We talked to our exhaust guy, and he feels that with the exhaust temps that these rotaries have, that it might not be a good idea, (the muff). Next step was hot water, plumbing, and a heater core inside some where, which was sort of a negative idea. We kept all of our cooling lines exterior, so that a coolant leak wouldn't happen inside at about 10K feet, and 200+ knots, not a good scenario. J.C. Whitney has a small electric heater that has some possibilities, so we are looking into that and some other ideas.
Greg Ward
Lancair 20B N178RG in Progress
----- Original Message -----
Sent: Tuesday, December 15, 2009 1:41 PM
Subject: [FlyRotary] Cabin Heat (Was Oil Cooler)
Jeff,
I'm considering going to a heat muff since there is sooooooo much exhaust heat that's just going to waste. I was going to incorporate it into the heat shield of my newest muffler design. Of course, I'll need to add a CO detector in the cabin for safety.
Mark
On Tue, Dec 15, 2009 at 3:24 PM, Jeff Whaley <jwhaley@datacast.com> wrote:
Well with 3 coolers already, I didn’t want to add a heater core and all the plumbing – I may move my scavenge point from oil cooler to water radiator as it is below the engine (uphill for warm air) and closer to the firewall (fewer corners to turn). I picked the oil cooler because at the time my oil temp was higher than water temp – now it’s the other way around … also the outlet of oil cooler as installed is less likely to get contaminated with exhaust fumes.
Jeff
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