Post by ericaus on Dec 4, 2015 11:58:06 GMT -8
Hi Guys, The pipe for the bell finally arrived so I can start work on the project.
s1204.photobucket.com/user/erickendall1/library/
Here are the figures that I've come up with thanks to Peter and others.
Firebox Internals:
Length – 720mm
Height – 540mm
Width – 360mm
I'll be using standard fire bricks in the construction of the fire box with the outer shell profiled and fabricated out of 12mm plate..The box will have a flange around perimeter to allow it to be bolted into the bell. This way the foot print of the heater will only be the diameter of the flanged ends (825mm) with the fire box elevated from the floor level around a metre.
Heat Riser:
Inside Diameter – 250mm
Wall thickness – 50mm
Height – 1800mm
I'll be using castable refractory ceramics for this and will need to make up a suitably sized cylinerical mold. I'll have to make the riser out of short spigoted modules around 300mm long that can be lowered in from the top and locate together .
Port:
Width - 90mm
Height - 396mm
P - Channel:
Width - 90mm
Height - 27mm
This unit will be installed on a timber tongue and groove floor, so I'll need to cut a hole and dig footings and fabricate a suitable base to bolt the unit to. This will have to be adjustable so that the unit can be plumbed up when in position.
The top and bottom flange plates will be profiled out of 20mm plate with 24 holes around the circumference to allow for bolting together. I'll be using 30mm BMS 4500mm long threaded both ends for the fixing method. To make the unit look more aesthetically pleasing I'll be shrouding the 30mm BMS with 38mm OD 304 stainless steel tubing. This will have a clearance fit into both the flange plates. I'll keep with the stainless theme and use stainless steel dome nuts on all attachments.
I've yet to design the doors for the fire box. I read a posting here a few weeks ago about the idea of a split door system and I think it was Erica that suggested having a third door below the two spit ones. I think for a fire box of this size that would be a great idea, so I'll go with the three. I'll make these from cast iron with glass inserts in the top two.
I'll post a link to drawings once they are complete.
I'd appreciate any comments from the experts here. This is the first rocket heater that I've looked at building, although I did build a standard cast iron box heater years ago that we are still using today. I put a link to this picture in another thread.
Thanks again for any comments.
s1204.photobucket.com/user/erickendall1/library/
Here are the figures that I've come up with thanks to Peter and others.
Firebox Internals:
Length – 720mm
Height – 540mm
Width – 360mm
I'll be using standard fire bricks in the construction of the fire box with the outer shell profiled and fabricated out of 12mm plate..The box will have a flange around perimeter to allow it to be bolted into the bell. This way the foot print of the heater will only be the diameter of the flanged ends (825mm) with the fire box elevated from the floor level around a metre.
Heat Riser:
Inside Diameter – 250mm
Wall thickness – 50mm
Height – 1800mm
I'll be using castable refractory ceramics for this and will need to make up a suitably sized cylinerical mold. I'll have to make the riser out of short spigoted modules around 300mm long that can be lowered in from the top and locate together .
Port:
Width - 90mm
Height - 396mm
P - Channel:
Width - 90mm
Height - 27mm
This unit will be installed on a timber tongue and groove floor, so I'll need to cut a hole and dig footings and fabricate a suitable base to bolt the unit to. This will have to be adjustable so that the unit can be plumbed up when in position.
The top and bottom flange plates will be profiled out of 20mm plate with 24 holes around the circumference to allow for bolting together. I'll be using 30mm BMS 4500mm long threaded both ends for the fixing method. To make the unit look more aesthetically pleasing I'll be shrouding the 30mm BMS with 38mm OD 304 stainless steel tubing. This will have a clearance fit into both the flange plates. I'll keep with the stainless theme and use stainless steel dome nuts on all attachments.
I've yet to design the doors for the fire box. I read a posting here a few weeks ago about the idea of a split door system and I think it was Erica that suggested having a third door below the two spit ones. I think for a fire box of this size that would be a great idea, so I'll go with the three. I'll make these from cast iron with glass inserts in the top two.
I'll post a link to drawings once they are complete.
I'd appreciate any comments from the experts here. This is the first rocket heater that I've looked at building, although I did build a standard cast iron box heater years ago that we are still using today. I put a link to this picture in another thread.
Thanks again for any comments.
