I use a dedicated table top cooker for my turkey roasting. It uses 120vAC and this last Thanksgiving it operated off my PV. I don't remember exactly what it used to cook a 13lb bird with stuffing but it was not much.I have a small Breville toaster oven (as well as their inverter microwave). I cook a lot of stuff in it. It's about 1/5 the capacity of a standard oven. Unless you're going to cook a turkey, or have a huge family, I see no use for a "full sized" oven. Even when I've had them (most of my life) you only mostly use a very small part of it so I think that large box is inefficient anyway. It also only takes like 4 minutes to get to 400F compared to my full sized ovens that took over 20 minutes. My meal is usually done by the time the large oven even reaches temp. Lots of wasted energy. It's 120v and the heating elements just pop in/out without having to take anything apart.
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Electric oven
- Thread starter Dwd902
- Start date
This is my next challenge , we use a filthy gas oven ,
methane, toluene , formaldehyde, benzine ,carbon monoxide etc ,
it has to go , too much pollution in the house.
So I am researching electric ovens and I think we can do it .
We have an air fryer , odd title really , its just a small oven , but even at 1300w it is only on for 10/20 minutes
so really low consumption .
Theres going to be a big hole that the gas oven will leave so electric is the way to deal with these 3 issues .
Induction hob is fantastic so efficient but no baking in either of these two appliances .
I think it is a mindset to achieve low consumption and this inspires more innovation .
I look forward to electric oven suggestions please ?
methane, toluene , formaldehyde, benzine ,carbon monoxide etc ,
it has to go , too much pollution in the house.
So I am researching electric ovens and I think we can do it .
We have an air fryer , odd title really , its just a small oven , but even at 1300w it is only on for 10/20 minutes
so really low consumption .
Theres going to be a big hole that the gas oven will leave so electric is the way to deal with these 3 issues .
Induction hob is fantastic so efficient but no baking in either of these two appliances .
I think it is a mindset to achieve low consumption and this inspires more innovation .
I look forward to electric oven suggestions please ?
KITROBASKIN
Solar Enthusiast
Sounds like you consider using propane as being somewhat still on the grid. Remember that off grid electrical systems can fail, needing days (weeks?) to solve. If you already have some propane capability, keep it around. The fuel does not go stale like gasoline.
Depending on your eating habits, countertop appliances can go a long way. A full scale electric oven does not need to be used when the clouds linger.
Depending on your eating habits, countertop appliances can go a long way. A full scale electric oven does not need to be used when the clouds linger.
Most common in US seem to be 30" whereas here in europe 600mm/24" is most common.
I'd look for 24" wall mount oven with convection bake+ Pyrolytic self-cleaning as these probably have better insulation to reach the required temps for pyrolytic cleaning. (pyrolytic cleaning cycle is quite power-hungry but you don't need to run that too often and you can do it when your batteries are full and sun is shining)
2200W seem to be pretty much standard in here. To burn frozen pizza in our oven it takes about 16 minutes with pizza put in cold oven.
I'd estimate that getting up to temp takes maybe 8 minutes and after that the oven is cycling at 30% power.
Maybe 400Wh to bake a frozen pizza in that case.
BigDoug
New Member
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- Nov 23, 2022
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There are only two things that I've come across that won't work with my countertop toaster oven - a full-size turkey, which is only made on Thanksgiving - and large frozen pizzas. Everything else fits into it.
If you aren't baking those things and are just using your standard 9x13" casserole dish to bake stuff in, these things are great. They use way less energy. If you go this route, though, be sure to confirm the internal size - some are bigger than others and the smaller ones are just small enough that your standard 9x13" casserole dish won't fit if it has handles (ask me how I know....)
The downside is that they take up space on the counter top, or somewhere else if you put them away after usage (like I do).
If you aren't baking those things and are just using your standard 9x13" casserole dish to bake stuff in, these things are great. They use way less energy. If you go this route, though, be sure to confirm the internal size - some are bigger than others and the smaller ones are just small enough that your standard 9x13" casserole dish won't fit if it has handles (ask me how I know....)
The downside is that they take up space on the counter top, or somewhere else if you put them away after usage (like I do).
DougfromdaUP
Solar Enthusiast
This is right in line with what I've seen with my 30" self cleaning. While you're drawing a couple of Kw steadily while it's preheating (mine is more like ten minutes,) the insulation is so good that once you're up to temperature it cycles with pretty short "on" periods. The outside is cool, even on top. Once you heat the insides it doesn't take much power to keep it at temperature.
Just don't run the self-cleaning cycle between November and February. I hate the smell anyway. I line the bottom with tin foil....
Many Aussie offgrid homes use electric stoves and ovens(although daytime cooking is preferred over nightime- easier on the batteries lol)
But then we tend to have fairly large solar arrays (10kw 'used' to be the most common size for rural properties, now 20kw and even more are becoming the norm...)
My own will be 18kw when fully up and installed (gotta finish the house first though) and that is going to be all electric
Although I have found that I really don't need an oven these days (the only thing I ever used mine for was making ham and cheese toasties)- and I haven't found anything yet that I couldn't comfortable cook in the 'camp kitchen' in the shed - all electric, and thats only running off the 1.5kw 'temporary' array at the shed... (out of sight is an electric 2 burner 'tabletop' hotplate 'stove'- which hardly gets used anymore anyway- I mostly used that for pancakes in the morning, until I found I could cook them in the airfryer lol)- btw the airfryers are great for even the biggest pizza
All running off a 12v 1600Ah lithium battery bank (16x 400Ah 4S4P), and a 12v 8kw inverter, with 6x 250w secondhand solar panels
When I had rellies staying last year- that 'camp kitchen' was cooking for 6 people with no issues (and quite frankly it didn't take much longer than it would have in a 'normal' kitchen...)
The caravan still has its LPG gas oven, but it hasn't been turned on in probably 5 years now- there probably isn't any gas left in the cylinder by now...
But then we tend to have fairly large solar arrays (10kw 'used' to be the most common size for rural properties, now 20kw and even more are becoming the norm...)
My own will be 18kw when fully up and installed (gotta finish the house first though) and that is going to be all electric
Although I have found that I really don't need an oven these days (the only thing I ever used mine for was making ham and cheese toasties)- and I haven't found anything yet that I couldn't comfortable cook in the 'camp kitchen' in the shed - all electric, and thats only running off the 1.5kw 'temporary' array at the shed... (out of sight is an electric 2 burner 'tabletop' hotplate 'stove'- which hardly gets used anymore anyway- I mostly used that for pancakes in the morning, until I found I could cook them in the airfryer lol)- btw the airfryers are great for even the biggest pizza
All running off a 12v 1600Ah lithium battery bank (16x 400Ah 4S4P), and a 12v 8kw inverter, with 6x 250w secondhand solar panels
When I had rellies staying last year- that 'camp kitchen' was cooking for 6 people with no issues (and quite frankly it didn't take much longer than it would have in a 'normal' kitchen...)
The caravan still has its LPG gas oven, but it hasn't been turned on in probably 5 years now- there probably isn't any gas left in the cylinder by now...
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Good point , I had not considered the system shutting down and I dont really want to run the genny to use an oven .
We always have a little camping cooker on hand as when we lived on grid there were always power cuts !
OzSolar
Whatever you did, that's what you planned.
I was thinking about the same thing. Non-electric back up's can also go a long way. Most of us have a 2 burner Coleman (or similar) camping stove. I have one that uses screw on 1lb propane bottles.
I've been yelling back and forth to another room where the boss is doing something in the kitchen, to consult with my local expert. I am told 1) The oven is on for about 10 minutes to heat up, then just sort of "pulses" on and off every little bit, even at 400 degrees (higher than she usually uses, which is 350). So, I think we can safely say about 750-800 watts for an hour's actual use. I'll use 1KW for the once per month we need it, for calculations. 2) Induction cooktop is way better than gas, and if I force her to use gas again in the new house I'll be making my own meals. 3) Air fryers are amazing, and often much better than an oven (e.g., chicken wings). We'll have propane at the new house for some things, but NOT for cooking.
what numbers do you want? We are a family of 6 and we use the oven here and there, more so stove top cooking. We general do more oven cooking in the winter too according to my numbers, but our highest usage was Aug this past year. I think we did 2 family parties with lots of cooking done buy us if I recall..
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OzSolar
Whatever you did, that's what you planned.
Thanks for confirming my back of the napkin numbers! It does appear that an electric oven/stove top is well within the realm of even a modest system.
Subdood
Photon Wrangler
We have a GE electric stove/oven that came with this manufactured house, it's about 20 years old. It has one large burner element and three smaller ones on the stove top. I'm curious as to how much power a small element uses. The breaker in the house panel has a double pole 40A breaker, but I'm guessing that's for in case you're using all 4 elements and the oven?
I guess I could figure it out with a current clamp meter on the wires in the house panel but I don't have one just yet.
We rarely use the oven, if we're making a pie or casserole we just use our toaster oven, which runs on 120V and uses about 1.5KW when the element is on.
I guess I could figure it out with a current clamp meter on the wires in the house panel but I don't have one just yet.
We rarely use the oven, if we're making a pie or casserole we just use our toaster oven, which runs on 120V and uses about 1.5KW when the element is on.
Like I said, I do all my cooking on electric here, and thats on a tiny 1.5kw of of panels on the 'temporary' array at the shed- 6 of the 7 250w panels shown here are charging the sheds battery bank,(the other just runs a UV sterilising lamp and 'stirrer' water pump in the water tank behind them- they only needed a 25W panel, but I have 72 of these panels here, and I wasn't going to buy a $50 panel thats only 1/5th of the wattage of the ones sitting here lol- that I paid $27 each for!!)
There's 750W facing north, and the 750W facing west for afternoon production each on its own MPPT controller- just as the north array is dropping in power, the west array is just starting to climb to its peak- and continues right until sunset (long after the north array has dropped down into the mud)
In spring and autumn, I get about 7-8kwh a day from them, less in summer due to the heat, and only slightly less again in winter...
which one do you have?
BigDoug
New Member
- Joined
- Nov 23, 2022
- Messages
- 29
One is a Hamilton Beach 31100 - but it's an older model that they don't make anymore. I can fit 14.5 inch wide dishes in there.
I also have a Cuisinart Air Fryer/Toaster Oven - the TOA-60. It works well for what it is. But the widest dish you can fit in there is just under 12.5 inches. It's not nearly as useful, but does a good job at baking what will fit inside.
dougbert
Solar Addict
we have grid, but have been moving closer and closer to off grid mode, well because I want to
we are off grid in effect April to Oct.
1 XW Pro 6.8kw inverter
60 kwh of battery
7.3 kw of panels in winter
9.0 kw of panels in summer (I can lay panels in yard without snow on them)
Need more panels and battery
wife won't use gas (bad childhood experiences) so here is a link to my adding a Solar 14-50r receptacle
so I can choose which source to use
Solar house generator I started DIY back in 2000 - My path from Trace to Xantrex (on FLA battery) to XW Pro inverters on Tesla Model S batteries
Alright. I am fidgeting waiting for the XW Pro to get here, so..... some minor updates to the AC side schematic diagram Forward reference to the schematic in Post #1...
diysolarforum.com
dougbert
Solar Addict
YES
that is 18kw of AC, great amount of solar input. Design system to accept a 4th XP in the future. Just be watchful of loads
and get a chargeverter to charge battery by generator. Use 2 or 3 chargeverters overtime if needed
Don't feed generator into inverters. use 50 amp generator feeder circuit. I have 2 CVs
you can always use smaller generators now get bigger later
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Anyone see this article I saw the other day. Oven that runs on 120v and uses battery and boils water in 40sec. https://eepower.com/market-insights...boils-water-10x-faster-than-gas-equivalents/#
