Benen Huntley wrote:Peter, in your specifications the pchannel must be 54x16mm, however, in your sketchup of the sidewinder it is 26x56mm. Is this not so important to get correct?
Both sidewinders on the batchrocket site doesn't have a p-channel, but a floor channel instead. The p-channel is an overhead device, the floor channel is incorporated in the floor of the firebox. Both secundary air channels work in different ways, that's why they aren't the same. It's perfectly possible to have a p-channel in the sidewinder by the way, although I'd regard the floor channel as the better one.
In short, it is equally important to get correct, but you'd better not to mix up two different concepts.
I feel like I am getting much closer and I can't thank you enough for your willingness to help!
Before I go further. I'd like to clarify that a 150mm system is indeed the suitable size for the space in the sketchup file? It's a kitchen, living and dining. Larger than I'd like but it's what we have 😊
Benen Huntley wrote:Before I go further. I'd like to clarify that a 150mm system is indeed the suitable size for the space in the sketchup file? It's a kitchen, living and dining. Larger than I'd like but it's what we have 😊
Impossible to say, very dependant on what low winter temperatures are at your place, orientation to the sun and wind chill, to name a few aspects. To get a rough idea, revert to the calculator of Yasin Gach. See http://batchrocket.eu/en/building#size
Did you read the thread at Donkey's, about a bell inside a bell? See http://donkey32.proboards.com/thread/2260/bell-inside
The internal upstream channel and the bypass valve in there is built dozens of times and it works for sure.
This way, the exhaust opening is on top instead of low at the side of the bell. And you could build the heater wider at the place where the metal chimney pipe would go.
As an added bonus there could be also a bypass halfway up this internal chimney thing, to allow gases to stream in the chimney at a higher level. Thus making the heater much easier to start when cold.
is this clear now?