I was bored to death with hard and slow starting, smokeback on windy days etc!
When i cut a restaurant fridge for it's stainless, i recuperated the fan in it. Which had melted a wire inside. Repaired this. It' IP65 or 66, so i thought, why not. Made a bracket, and voila, power asist draft. Ok, not pure rocket, but once the draft is strong and the last elbow is hot, i can turn it off. Mind you, i haven't tried it in strong southern wind yet. Ill report back then.
This green machine seems it will never work right. I've started it up today, with the fan, and i had a smidge of smoke. After a while, with roaring fire, and the fan on, it shouldn't smoke anymore! And it's smoke, not steam, i can smell it.
Or is my air drawing cooling the fire. Nevertheless, when i thought it was hot enough, i switched the fan off; and it was smoking like a box stove.
Firebox is insulated. Nearly with the right dimensions. i have a P channel, not drawing much, but it's there. I have a door with an opening that i can reduce. usualy open between 7 an 8cm, x7cm height. So 49 to 52cm², compared to the 201 of the 16cm riser. That's a bit more than the advised 20% oppening. So what is wrong?
Ok fuel might be less than optimal. But it's not at 20% moisture. Usualy sticks offcuts from woodworking. Actualy the wood in there today has spent most of the summer in the tipper of my truck. I haven't been able for a while, to get the back of the firebox to glow. Ok it's not that cold outside, around the 10C° for the moment. But it should work ok! It has worked all right in the past, where i could see only a haze. Nothing has changed since. I plan on enlarging the transition area, tho it's not that far off. I have a projection of at least 235cm². 15cmx5cm gap at the nearest, tho i have 8cm on the radius of the barrel. So it should be a bit more.
It's not a funny feeling, having to work with sub optimal parameters, like the crappy chimney. Restriction through the wall etc. And i can't move yet, the sale being blocked by the other part's liquidator.
Max, If there isn't enough draft you will have to open the primary air to get a complete burn. When I first made my batch box it worked fine. Once I connected it to my bench it slowed down a bit and I had to play with the door opening. After plenty of trials I felt concerned enough to notify to forum with this post which Peter placed in the library.
Have you cleaned it recently? Sounds like your system parameters are pretty tight, perhaps there is a bit of buildup somewhere throw in you off that is noticeable in warmer weather. Another thought I had was that perhaps the good draw of the fan is giving enough draft to overload the afterburner with hydrocarbons that can't be consumed. Still, though, if the balance between primary and secondary air is right it would seem that even an assisted draft should have the right proportions. So back to grizbach's thoughts, I guess...
flybywire: Glass window from an old washing machine is designed to take high temps. Cheap solution to your need.
Jan 27, 2019 0:10:58 GMT -8
coastalrocketeer: Anyone posting in this shout box... if you have something you want people to see and respond to, create a thread in the appropriate forum section... this is not the place to have a discussion... it is for short announcements
Feb 7, 2019 0:11:23 GMT -8
coastalrocketeer: you won’t likely get replies to questions here, and it is not a spot that makes holding an ongoing discussion possible...
Feb 7, 2019 0:12:22 GMT -8
TexasGonzo: Sooooo glad I found this site! Its always rewarding to find such a super group of folks! To any and all, feel free to PM me anytime. Thanks for having me!
Mar 11, 2019 18:56:41 GMT -8
jlmtech: GADGET: CONSIDER USING A JET PUMP INSTEAD OF A BLOWER FAN TO INDUCE DRAFT; NO CLOGGING.
Mar 26, 2019 8:19:28 GMT -8
michaelegan: i am unable to open the sketchup files on my mac. I used sketchup a few years back but apparently the company now requires a subscription. does anyone have any advice/instructions on how to use the program or how to view pictures without spending money?
Aug 20, 2019 18:41:48 GMT -8
mannytheseacow: michaelegan: download AutoCAD student version for free... import .SKP
Aug 23, 2019 13:33:44 GMT -8
topbaza: hi everyone, been searching all over net and this is were i need to be i think!!
Sept 28, 2019 6:16:25 GMT -8
anounaki: Hi, why I cant upload photos when I make new tread to this forum?
Feb 28, 2020 2:09:40 GMT -8
ahansen: photos under 1 mb not possible?
Jun 4, 2020 0:09:21 GMT -8
belgiangulch: Photo's are possible. They must be downloaded elsewhere and the image url (adress) is copyied.
Sept 14, 2020 7:26:15 GMT -8
belgiangulch: While creating a thread click on the small picture in the banner above the reply. A box pops up, paste the image url in the box. Pay no attention to the huge list of numbers and such.When you finish and hit reply your post with pictures will come up.
Sept 14, 2020 7:29:27 GMT -8
deadstarsstillburn: Hi there. I was directed this way by folks on the Permies.com website and am hoping I can get some information on how a total newbie can get started designing, siting, building, and not-dying-in-a-horrible-house-fire with a new RMH in a 160-year old home
Oct 21, 2020 6:52:10 GMT -8
deadstarsstillburn: The people over there recommended either a 6" batchbox or an 8" J-tube. I don't know what those are but am going to try to figure that out. What I need is a blueprint that I can scale to fit the need for my house. I have something likne 5000 square feet
Oct 21, 2020 6:53:00 GMT -8
deadstarsstillburn: but I do not need to heat all of it by any means. probably only need to heat half of that, maybe less.
Oct 21, 2020 6:53:15 GMT -8
deadstarsstillburn: moreover, the house has 3 storeys (large attic) so I assume if I get very efficient heating on the ground floor, that will go a long way toward heating the upstairs as well, no?
Oct 21, 2020 6:53:59 GMT -8