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Fradle
Dabbler
Registered: 01/25/04
Posts: 15
Last seen: 9 years, 3 months
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AA 941 cooker efficiency
#13028432 - 08/09/10 07:11 PM (14 years, 5 months ago) |
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Anybody tried to insulate their canners to save on propane? During winter I don't mind much but hell its hot right now.
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Fungal growth
Lootinint



Registered: 03/21/10
Posts: 3,641
Loc: under a rock in your yard
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Re: AA 941 cooker efficiency [Re: Fradle]
#13028514 - 08/09/10 07:30 PM (14 years, 5 months ago) |
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i know what you mean, man. persistance is pc'ing in 90 degree weather w/o air conditioning.
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Doc_T
Random Dude




Registered: 03/06/09
Posts: 42,395
Loc: Colorado
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I PC after dark with the door open.
What do you plan to insulate with? Fiberglass batting?
-------------------- You make it all possible. Doesn't it feel good?
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Fradle
Dabbler
Registered: 01/25/04
Posts: 15
Last seen: 9 years, 3 months
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Re: AA 941 cooker efficiency [Re: Doc_T]
#13028701 - 08/09/10 08:13 PM (14 years, 5 months ago) |
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Something like that. Maybe those sleeves used to insulate water heaters. I sent an email to the manufacturer for some advice.
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Doc_T
Random Dude




Registered: 03/06/09
Posts: 42,395
Loc: Colorado
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Re: AA 941 cooker efficiency [Re: Fradle]
#13028892 - 08/09/10 08:55 PM (14 years, 5 months ago) |
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Sounds itchy. Plausible idea if you can pull it off though. Might be a product you could market- this could be your million-dollar idea.
-------------------- You make it all possible. Doesn't it feel good?
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Doc_T
Random Dude




Registered: 03/06/09
Posts: 42,395
Loc: Colorado
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Re: AA 941 cooker efficiency [Re: Doc_T]
#13029036 - 08/09/10 09:19 PM (14 years, 5 months ago) |
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You might just try something like a little wool blanket wrapped around it. (Not if you have a gas stove, obviously, nothing flammable in that case.) But even like a doggy blanket might give you a yes/no answer as to whether this is worth exploring.
-------------------- You make it all possible. Doesn't it feel good?
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Fradle
Dabbler
Registered: 01/25/04
Posts: 15
Last seen: 9 years, 3 months
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Re: AA 941 cooker efficiency [Re: Doc_T]
#13029386 - 08/09/10 10:17 PM (14 years, 5 months ago) |
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I tried it once with my small 12 qt. canner. It was on one of those portable electric ranges. The thing took over an hour to reach 15 psi it was driving me nuts. I just wrapped a towel around it and that helped a lot. Now Im using gas. With the burner open wide it takes 7 min before the weight starts to dance! (although that much heat will break glass and mess up your grain)
The AA941 fully loaded with bags takes 55-60 minutes to reach 15psi and about 35 minutes to come back down to 0. I usually wait a minimum of 2 hours after 0 psi before opening but everything is still very hot. I don't use bags anymore and I never checked my time with jars but I guess that it would be the same, if not faster. What about your time?
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RogerRabbit
Bans for Pleasure


Registered: 03/26/03
Posts: 42,214
Loc: Seattle
Last seen: 1 year, 10 months
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Re: AA 941 cooker efficiency [Re: Fradle]
#13029398 - 08/09/10 10:23 PM (14 years, 5 months ago) |
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The AA pressure cookers are pretty thick. I doubt you'd save a whole lot by insulating it. I insulate the 55 gallon drums I sterilize in outdoors and it helps greatly, but they're much thinner. My infrared thermometer only reads 150F when I point it at the AA at 20 PSI, but it reads 220F when pointed at my drum sterilizer, which only operates at 2 PSI. RR
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"I've never had a failed experiment. I've only discovered 10,000 methods which do not work."
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