Need help. How can you use oil to transfer heat to well insulated rocks so those rocks can stay hot enough to boil water all night?
beancube2008 2 years ago
Oh good!
Wondering how it will run in midday in summer!
I keep an eye on you ;)
R.
electrique527 2 years ago
GReat job. Paint your hot part of the engine in matt black. It will icrease warmth of it :))
mieszalniapasz 3 years ago
Bloody awesome job mate...never thought of using old radar dish !!!
CraziestOzzy 3 years ago
Did you use Mylar?
pantadon 3 years ago
No, it's ordinary kitchen foil, 12 segments glued-on with craft cement - the aerosol spray stuff. Quick test only!
james9149 3 years ago
James, I've built dark curtains and heat reflectors from tin foil and book plastic, the stuff that is used to cover school books. It makes the tin foil durable and easy to handle.
teemuruskeepaa 3 years ago
Wow, great work. Timing the water boiling thing should give you some measure of power input--can you measure the output to check efficiency?
desiredusername 4 years ago
OMG you have been busy in that shed! Ahhhhhhhh! it's awesome! I am just finding the mirror glass now for my first rig on small motor.
britgaskets 4 years ago
Be careful: sunlight this concentrated can give serious burns, and cause sunburn in seconds! Protect hands and eyes.
james9149 4 years ago
I take the opportunity to be the first one who comments, it is very nice. How did you build the pistones?
rezahasseli 4 years ago
Need help. How can you use oil to transfer heat to well insulated rocks so those rocks can stay hot enough to boil water all night?
beancube2008 2 years ago
Oh good!
Wondering how it will run in midday in summer!
I keep an eye on you ;)
R.
electrique527 2 years ago
GReat job. Paint your hot part of the engine in matt black. It will icrease warmth of it :))
mieszalniapasz 3 years ago
Bloody awesome job mate...never thought of using old radar dish !!!
CraziestOzzy 3 years ago
Did you use Mylar?
pantadon 3 years ago
No, it's ordinary kitchen foil, 12 segments glued-on with craft cement - the aerosol spray stuff. Quick test only!
james9149 3 years ago
James, I've built dark curtains and heat reflectors from tin foil and book plastic, the stuff that is used to cover school books. It makes the tin foil durable and easy to handle.
teemuruskeepaa 3 years ago
Wow, great work. Timing the water boiling thing should give you some measure of power input--can you measure the output to check efficiency?
desiredusername 4 years ago
OMG you have been busy in that shed! Ahhhhhhhh! it's awesome! I am just finding the mirror glass now for my first rig on small motor.
britgaskets 4 years ago
Be careful: sunlight this concentrated can give serious burns, and cause sunburn in seconds! Protect hands and eyes.
james9149 4 years ago
I take the opportunity to be the first one who comments, it is very nice. How did you build the pistones?
rezahasseli 4 years ago