View Single Post
Old 01-02-2017, 01:18 PM   #11 (permalink)
Master EcoModder
Join Date: Sep 2012
Location: Victoria, BC
Posts: 398

Topoff - '92 Geo Metro LSi
90 day: 48.54 mpg (US)

'91 Miata - '91 Mazda Miata
90 day: 27.2 mpg (US)

'86 Fiero GT - '86 Pontiac Fiero GT

Purple Penny Pincher - '95 Pontiac Firefly Base
90 day: 38.91 mpg (US)

Jett-Black - '01 Volkswagen Jetta
90 day: 39.02 mpg (US)
Thanks: 24
Thanked 118 Times in 88 Posts
You're right, a triac would most likely fail short.

I think you're making it too complicated, though. Why not start with a 2000w/240v element. It will have 1/4 power at 120v. Now it's 500w. Throw a diode in, and it's only getting power half the time, so now it's 250w. If that's not low enough, then put two in series instead, and you have 125w.

If you're talking lower power like this, I'm not sure I see much need to bother with immersed elements. I'd slap some PTC heater elements on the outside, possibly insulate it, and call it done.


Last edited by Stubby79; 01-02-2017 at 01:39 PM..
  Reply With Quote