Frit-Happens !

Technical Forum => Studio/workspace/setup/equipment => Kilns => Topic started by: Ra73 on June 22, 2012, 09:44:52 AM

Title: Costs of running a kiln?
Post by: Ra73 on June 22, 2012, 09:44:52 AM
Hi can anyone give me a rough idea of how much electricty it costs to run a small to medium kiln, trying to work it out before i move and buy one
also can a kiln run surficiently off a generator?
thanks  ;)
Title: Re: Costs of running a kiln?
Post by: Blue Box Studio on June 22, 2012, 10:00:01 AM
I ran my SC2 through a power monitor (like this but not this one http://www.amazon.co.uk/Plug-In-Power-and-Energy-Monitor/dp/B000Q7PJGW/ref=sr_1_1?ie=UTF8&qid=1340355428&sr=8-1) and it was working out at something like £1 for a batch annel which was taking about 7.5 hours.  I thought it would be a lot more, but I did it several times and costed it from my leccy unit cost so presume I am somewhere in the right area.

Actually,  the power monitor was a great buy - horrified by the power the dishwasher used in standby, now we turn it off when it finishes, not hours later when we go to bed / come back in from work.
Title: Re: Costs of running a kiln?
Post by: Redhotsal on June 22, 2012, 10:03:55 AM
On Kilncare's kilns there's actually something in the program that you can press to see how much power you've used on a cycle. It's surprisingly little actually, especially if your kiln is well insulated. My Kilncare Maxi doesn't even use a pounds worth a day though it is a fire brick construction. My old Bluebird with fibre insulation used to get so hot on the outside you could boil a kettle. Dread to think how much that one cost to run!
Title: Re: Costs of running a kiln?
Post by: Ra73 on June 22, 2012, 10:19:21 AM
thankyou for your helpful replys
i will do some resurch with the kilns as i now have to decide which one to buy
exciting   :o
Title: Re: Costs of running a kiln?
Post by: Redhotsal on June 22, 2012, 10:26:55 AM
Tina has listed a Maxine for sale on here yesterday. Low mileage and one careful lady owner. I would snap it up (but I have two!). The best thing about Kilncare is the support - second to none in my honest opinion.  Here's a link http://www.frit-happens.co.uk/forum/index.php?topic=37803.0

Note - this kiln won't get hot enough for enameling or fusing though - it's just for bead annealing.
Title: Re: Costs of running a kiln?
Post by: Ra73 on June 22, 2012, 10:57:46 AM
thanks for the maxine tip,
would it get hot enough for pmc, metal clay or fine ceramics ? as this is also my intention for kiln usage
i am a trained silversmith and like to mix materials.
  ;D
Title: Re: Costs of running a kiln?
Post by: Redhotsal on June 22, 2012, 11:04:24 AM
It would get hot enough for PMC3 but not ceramics. Think it does around 700C max, so you'd be better off with an "all rounder" kiln like the Paragon SC3. I believe Kilncare have a new kiln out but I don't know it's max temp . Their smaller Beadcube will get to those temperatures but the chamber is relatively small (but it's cheap to buy and to run). Don't hesitate to give Lee or Brian a call though - they are always helpful.
Title: Re: Costs of running a kiln?
Post by: Flyingcheesetoastie on June 22, 2012, 12:35:50 PM
I've done PMC in the beadcube but the controller will only go up to 900c so too low for bisque firing ceramics.  You can't really fire it without the controller either, so using a pyrometer to get to temperature isn't an option.
Title: Re: Costs of running a kiln?
Post by: Warm Glass UK on June 22, 2012, 01:56:31 PM
Most of our medium kilns like the Hotstart are about 50p per firing for a full fuse.
Title: Re: Costs of running a kiln?
Post by: Flyingcheesetoastie on June 22, 2012, 04:16:57 PM
To add a comparision, my flatbed is about £8 for a 2 day paint firing to 700c and annealing for 10mm thick glass. It's 2x1m though!
Title: Re: Costs of running a kiln?
Post by: Kaz on June 22, 2012, 05:15:28 PM
I think the Maxine works out to about 60-70p per time depending on whether I advance the programmer.