How much electricity to maintain an oven at 150 degrees?

[slowmotion]

So, to summarise the responses thus far: no-one has a clue.

Thanks everyone.

I'll try again. Our oven has a 2600 watt element. If I set the thermostat to 130 C and turn it on, it comes up to temperature in about 8 minutes. It takes a few minutes to settle down, but within ten minutes it's cycling at one minute on, five minutes off. It will do that for as long as it takes. The fan runs all the time of course. I guess that the fan is about 70 watts. That lot adds up to an average continuous load of about 0.5 kW. If you want to cook a bit of piggy-wiggy for seven hours, that's going to be about 3.5 kWh. At say 17p per kWh, that's about 60p in cooking costs. Of course, things will be a bit worse than this because your slab of pig introduces some thermal mass into the equation, rather than the empty oven situation that my illustration is based on.

A quid, tops.

 

[classic33]

I'll try again. Our oven has a 2600 watt element. If I set the thermostat to 130 C and turn it on, it comes up to temperature in about 8 minutes. It takes a few minutes to settle down, but within ten minutes it's cycling at one minute on, five minutes off. It will do that for as long as it takes. The fan runs all the time of course. I guess that the fan is about 70 watts. That lot adds up to an average continuous load of about 0.5 kW. If you want to cook a bit of piggy-wiggy for seven hours, that's going to be about 3.5 kWh. At say 17p per kWh, that's about 60p in cooking costs. Of course, things will be a bit worse than this because your slab of pig introduces some thermal mass into the equation, rather than the empty oven situation that my illustration is based on.

A quid, tops.

He never mentioned anything about the cost of heating the oven upto temperature though, just maintaining the temperature.

New type of cooker maybe?

 

[slowmotion]

He never mentioned anything about the cost of heating the oven upto temperature though, just maintaining the temperature.

New type of cooker maybe?

If you are cooking for seven hours, the oven pre-heat energy of about eight minutes, full power, is just down there in the noise.

 

[raleighnut]

I'd just whack it in my 'Slow cooker' pretty sure it's 150W so that's like 7hrs of a couple of light bulbs or only just over 1 KWh.

 

[classic33]

I'd just whack it in my 'Slow cooker' pretty sure it's 150W so that's like 7hrs of a couple of light bulbs or only just over 1 KWh.

LED, energy saving or standard though?

 

[raleighnut]

LED, energy saving or standard though?

Any lamps that use 150W.

 

[classic33]

Any lamps that use 150W.

I've a couple of 100W bulbs that claim to use 22W.

 

[swee'pea99]

I'll try again. Our oven has a 2600 watt element. If I set the thermostat to 130 C and turn it on, it comes up to temperature in about 8 minutes. It takes a few minutes to settle down, but within ten minutes it's cycling at one minute on, five minutes off. It will do that for as long as it takes. The fan runs all the time of course. I guess that the fan is about 70 watts. That lot adds up to an average continuous load of about 0.5 kW. If you want to cook a bit of piggy-wiggy for seven hours, that's going to be about 3.5 kWh. At say 17p per kWh, that's about 60p in cooking costs. Of course, things will be a bit worse than this because your slab of pig introduces some thermal mass into the equation, rather than the empty oven situation that my illustration is based on.

A quid, tops.

So, somewhere shy of a quid. Right. Thanks. Interesting. (It was delicious BTW! )

 

[classic33]

So, somewhere shy of a quid. Right. Thanks. Interesting. (It was delicious BTW! )

Was it worth it though?

 

[presta]

[QUOTE 4989193, member: 9609"]just make a calculated guess
2200w element running 30% of the time = 0.66 kw[/QUOTE]
It's a good guess. At 150C in a 20C kitchen, mine uses 630W (2240W on a 28.1% duty cycle.)

Can depend on the age of the cooker as well.

And the temperature of the kitchen.

So, to summarise the responses thus far: no-one has a clue.

I've already told you how to do it at the top of the thread.

Slow day in Prestaland?

How much more childish are you going to get?

 

[classic33]

It's a good guess. At 150C in a 20C kitchen, mine uses 630W (2240W on a 28.1% duty cycle.)

And the temperature of the kitchen.

I've already told you how to do it at the top of the thread.

How much more childish are you going to get?

Can't be anywhere near hot enough to cook the meat. If it is, he could do with turning the heating down!

 

[presta]

Can't be anywhere near hot enough to cook the meat.

I can see you've never been in the self-caterer's kitchen at the Exeter Globe.

 

[classic33]

I can see you've never been in the self-caterer's kitchen at the Exeter Globe.

Nope.

 

[slowmotion]

How much electric does the fan use?

I estimated 70 watts but it's probably nearer 25 watts.

 

[lutonloony]

Ive got a gas oven, it would take ages to cook light bulbs( or is it lamps) in it it