Last Activity:03-20-2015 1:17 PM
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Posted in thread: PIDs, furnace valves, and duty cycles. on 04-01-2013 at 12:22 AM
I've dug a bit through the forums and I haven't seen anybody address this question. What is the
ideal range duty cycle for using PIDs to run typical gas furnace valves like the Honeywell
VR8200? How l...
Posted in thread: Possible direct spark ignitor alternative. Robertshaw 785-001 on 03-04-2013 at 12:40 AM
I don't use that type of system, but yes, you would need an ignition control for each valve.I
assume, you need an ignitor system like that for each valve? Do you use it's type of system
Posted in thread: How much heat does a fermentation produce on 03-01-2013 at 07:30 PM
I guess I wasn't clear. Yes, I mean glucose.C6H12O6 -> 2 C2H5OH + 2 CO2 + 235 kJ/molSucrose
is:C12H22O11 + H2O -> 4 C2H5OH + 4 CO2 + 425 kJ/molYou can do any other sugar you want and get
Posted in thread: How much heat does a fermentation produce on 03-01-2013 at 02:22 AM
I know I'm raising a zombie here, but since I've been going over this problem over and over
again for a peltier build I thought I'd share with people what I think is a better answer to
Posted in thread: Possible direct spark ignitor alternative. Robertshaw 785-001 on 02-25-2013 at 04:55 PM
My safety concern is that there is no test for failed ignition in this setup. It is possible to
have a situation where gas is pouring out of your burner and you're not getting ignition
because of a st...
Posted in thread: Valves and connections for propane on single tier on 02-10-2013 at 04:25 PM
While impatiently waiting for a reply I did manage to uncover this document detailing a huge
amount of what people want to know about gas valves. So, I thought I'd share. important detail
that is rel...
Posted in thread: Valves and connections for propane on single tier on 02-09-2013 at 08:54 PM
If your using Honeywell gas valves the regulator doesn't mean as much, due to the ability of
the gas valve to control inlet pressure and and outlet pressure. You do need to make sure the
regulator is ...
Posted in thread: Help with propane plumbing on 02-09-2013 at 08:34 PM
Awesome thread guys. Hopefully somebody can help me figure out what I'm doing wrong. I'm trying
to setup an all 11"WC LP gas setup because I'm planning to do a Honeywell valve temperature
Posted in thread: Which thermowell for STC1000 probe? on 01-25-2013 at 04:02 PM
If you really want to use a thermowell, you can get a replacement probe. Supposedly they are
are using a NTC 10KOhm @ 25C, 3435 Beta probe. can get a replacement probe that can slide
into a >5mm the...
Posted in thread: Possible direct spark ignitor alternative. Robertshaw 785-001 on 01-25-2013 at 03:40 PM
I wasn't trying to imply that it was entirely safe. Even manual ignition isn't safe. I know
I've had more than one time where I was fumbling with a blown out lighter and gotten a small
boom. It defini...