[Stoves] [MHAtech] Re: Top lit updraft combustors

[Tom Miles]

Similar Gasifiers get 15%-20% yields. I would question 25% or more. 

T R Miles Technical Consultants Inc.
tmiles at trmiles.com
Sent from mobile. 

> On Dec 18, 2017, at 6:50 PM, Norbert Senf <norbert.senf at gmail.com> wrote:
> 
>> On Mon, Dec 18, 2017 at 6:22 PM, Ronal W. Larson <rongretlarson at comcast.net> wrote:
>> 	[RWL:  I sometimes hear of reverse flow in chimneys.  Not  to worry in your systems?
> 
> It can be an issue with cold starts, but is not a safety concern because there will be noxious smoke, which is obvious. There are various workarounds/fixes for this
> In normal operation, the heater is warm, and will keep powering the chimney draft long after the fire is out until all the heat is sucked out of the mass.
> During the charcoal phase, when the thermal mass has been heated, chimney draft is never an issue.
> 
> This is quite the opposite of "airtight" stoves that you fill with wood and then turn down for an overnight burn. During the middle-of-the-night charcoal phase, draft can get low and house depressurization can cause a reversal and CO spillage. 
>> 
>> 	[RWL:  No - medium .  I almost never varied a percentage point from 25% by weight (multiply by about 30/18 to get energy).  But we hear 30% by weight sometimes (low temperature char).
> 
> Thanks, interesting to know what a good number for yield would be ...............N
> 
> -- 
> Norbert Senf
> Masonry Stove Builders
> 25 Brouse Road, RR 5
> Shawville Québec J0X 2Y0
> 819.647.5092
> www.heatkit.com
> _______________________________________________
> Stoves mailing list
> 
> to Send a Message to the list, use the email address
> stoves at lists.bioenergylists.org
> 
> to UNSUBSCRIBE or Change your List Settings use the web page
> http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org
> 
> for more Biomass Cooking Stoves,  News and Information see our web site:
> http://stoves.bioenergylists.org/
> 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20171218/02b1dd2f/attachment.html>