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Electricity or LPG for Cooking - Which is better?

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(@fake_silhouette)
Posts: 24
Eminent Member
 

Re: Electricity or LPG for Cooking - Which is better?

by better what do you mean?

LPG is cheaper and is used by most people
Elec is more expensive and is used by less people

LPG has more people who can fix
Elec has less people who can fix

LPG can cause fire (leaks) so more hazardous
Elec can cause fire (improper wirings) so less hazardous (not for old establishments)

LPG runs out and needs to be replaced (you can't buy LPGs whenever wherever
Elec is postpaid (but would not work if there's no power)

LPG has more fakes and imitation
Elec has less fakes and imitation (i don't think there is even one but i can't be too sure can I)

LPG can be misused by children more (highten the stove?)
Elec can be misused by children less (you can easily put up a breaker though)
*they are both dangerous if played at though

anyway my point is
there is no perfect tool / machine / people / whatever
everything has its pros and cons
so think of something that best fits your needs
________
Ship Sale

 
Posted : 16/07/2010 7:33 am
(@kchan)
Posts: 15
Active Member
 

Re: Electricity or LPG for Cooking - Which is better?

guys, when u say electric vs lpg.. kasama ba dyan yung electric stove na ceramic top. may alam po ba kayo regarding this kind of stove compare to lpg?

 
Posted : 04/09/2010 12:06 pm
(@joey81)
Posts: 1098
Member
 

Re: Electricity or LPG for Cooking - Which is better?

We went for the Imarflex induction cooktop, but we had to do some calculations before making the final decision.

Our average consumption is one 11kg LPG tank per month. The energy density of LPG is 46.44 megajoules per kg. Thats a total of 510.84 mj per tank. I've read gas stoves are only 40% efficient, meaning only that percentage of the energy actually goes into the food you are cooking. The other 60% is dissipated unused in your kitchen.

 
Posted : 04/09/2010 4:25 pm
(@joey81)
Posts: 1098
Member
 

Re: Electricity or LPG for Cooking - Which is better?

So we are actually using only 204.34 mj for our cooking.

Punta tayo sa electricity. 1 kWh is 3.6mj. Induction cooktops
is 84% to 90% efficient. Lets take the conservative side. 204.34/0.84 = 243.26.

We will consume 243.26 mj or 67.57 kWh if we used the induction stove.

 
Posted : 04/09/2010 4:36 pm
(@joey81)
Posts: 1098
Member
 

Re: Electricity or LPG for Cooking - Which is better?

Based on our latest electric bill, Meralco is effectively charging us P11.46 per kWh. So that's 774.53 petot!

 
Posted : 04/09/2010 4:41 pm
(@joey81)
Posts: 1098
Member
 

Re: Electricity or LPG for Cooking - Which is better?

And yung latest purchase namin ng LPG (yes, we need it pag brownout) is only P575.

Waaaahhh!!! Lugi na pala ako at today's Meralco rates. :'(

Sa computation namin two years ago mas mura pag induction.

 
Posted : 04/09/2010 4:54 pm
(@joey81)
Posts: 1098
Member
 

Re: Electricity or LPG for Cooking - Which is better?

Pwede na pala akong mag-post ng link.

kWh to joules

Induction stove efficiency

LPG (propane) energy density

How induction works

AFAIK, induction is the most energy efficient cooktop, because heat is generated by the pot/pan itself. There is no radiant heat lost from the stovetop, no matter the size of your cookware.

@kchan, I don't know yet what is the efficiency of the ceramic hob, but I'm pretty sure mas makakatipid ka pa rin pag LPG.

 
Posted : 04/09/2010 5:07 pm
(@kchan)
Posts: 15
Active Member
 

Re: Electricity or LPG for Cooking - Which is better?

@joey boss thanks sa explanation mo. yan pala ung iniisip ko induction nasa dulo na nang dila ko kanina hindi ko lang maalala. anyways thanks very much sa explanation mo, so ill go for lpg parin.

sa charcoal vs lpg naman, based sa observation ko mas mura parin lpg, kasi walang control ang heat nang charcoal and matagal, magpapabaga ka pa hehehe

 
Posted : 04/09/2010 5:13 pm
(@joey81)
Posts: 1098
Member
 

Re: Electricity or LPG for Cooking - Which is better?

You're welcome!

BTW, depending on your place, you might need to consider where the 60% goes.

If you live in a condo that 60% heats up your room and will give extra load to your aircon. That's 306.5 megajoules of heat (assuming 1 tank per month).

I don't know how efficient air conditioners are but lets assume it consumes 1joule per joule of energy removed from the room:

306.5 / 3.6 = 85.14kWh

That's 957 pesos spent getting rid of unused heat! Way much more than the ~200 pesos na natipid mo if using LPG instead of induction.

 
Posted : 05/09/2010 8:53 am
(@kchan)
Posts: 15
Active Member
 

Re: Electricity or LPG for Cooking - Which is better?

ok naman, normal kitchen na napakainit din pag nag cook dahil kulang sa ventilation.

what about ung lpg stove saver something na nabibili sa mga tyangge stores, ung bilog na may wire mesh. do u guys consider na this really works? i tried this before mukhang ok naman dahil mas nakakafocus ung fire but i dont know if it really works dahil hindi ko mamomonitor, madami kasing nagamit nang stove

 
Posted : 06/09/2010 8:53 am
 Neo
(@neo)
Posts: 65
Trusted Member
 

Re: Electricity or LPG for Cooking - Which is better?

Pwede na pala akong mag-post ng link.

kWh to joules

Induction stove efficiency

LPG (propane) energy density

How induction works

AFAIK, induction is the most energy efficient cooktop, because heat is generated by the pot/pan itself. There is no radiant heat lost from the stovetop, no matter the size of your cookware.

@kchan, I don't know yet what is the efficiency of the ceramic hob, but I'm pretty sure mas makakatipid ka pa rin pag LPG.

whew! grabe, sir joey. talagang pinag-aralan mo to. parang thesis ah! 😀 kidding aside, i'm glad you posted this information, and your personal experience and calculations. i myself has been considering getting a pair of single plate induction cooker, when i move to my new house. i've heard so much about its efficiency and it being an energy saver. though i didn't do calculations like you did. but, after reading your post, i think i'd better change my plans, and consider LPG stove again.

my plan is to really have my kitchen/cooking appliances running on electricity (no LPG) like the rice cooker/steamer/poacher, blender, oven, toaster, microwave oven, coffee maker, juicer, etc.

should i also do cost and energy calculations on these appliances so that i'd know which i should prioritize?

 
Posted : 09/03/2011 4:56 pm
 Neo
(@neo)
Posts: 65
Trusted Member
 

Re: Electricity or LPG for Cooking - Which is better?

And yung latest purchase namin ng LPG (yes, we need it pag brownout) is only P575.

Waaaahhh!!! Lugi na pala ako at today's Meralco rates. :'(

Sa computation namin two years ago mas mura pag induction.

sir joey, yung price ng LPG ngayon is about php677 na. mas tipid pa din ba ang LPG?

 
Posted : 09/03/2011 4:58 pm
(@balarila)
Posts: 1368
Noble Member
 

Re: Electricity or LPG for Cooking - Which is better?

Let me get into this fray from a different perspective: cooking.

I like to cook and, for range top cooking, it's LPG for me, hands down. I find LPG much easier to control than electricity. I look at the flame, turn the knob until it's the right size and cook. I also like the instant heat of a flame as opposed to waiting for the coil to heat up. I find LPG just much more convenient and controllable.

Now, that's for the cooking range. When it comes to the oven, I prefer electric. I feel confident that the thermostat of the oven can regulate more effectively the heat than LPG. So it's electric for me when I bake or roast. But whenever I can, charcoal is best.

For water heating, nothing beats the electric pot. In fact, when I cook something soupy, I heat up water in the electric pot which is what I use in adjusting water in what i'm cooking. Fast.

BTW, I have three LPG tanks at home: 2 duty and 1 standby, so we never run out.

 
Posted : 09/03/2011 8:30 pm
(@joey81)
Posts: 1098
Member
 

Re: Electricity or LPG for Cooking - Which is better?

sir joey, yung price ng LPG ngayon is about php677 na. mas tipid pa din ba ang LPG?

An 11-kg tank of LPG is equivalent to 67.57 kWh of electricity. According to my last month's bill, Meralco charged me P10.33 per kWh.

That's P698.xx, mas mura pa rin LPG by a bit.

Considering the "green" points of induction: zero emission, minimal excess heat, no soot in my walls/ceilings, sulit pa rin para sa akin.

Sana lang bigyan tayo ng incentives ng gov't for using energy efficient appliances.

 
Posted : 09/03/2011 9:19 pm
 Neo
(@neo)
Posts: 65
Trusted Member
 

Re: Electricity or LPG for Cooking - Which is better?

An 11-kg tank of LPG is equivalent to 67.57 kWh of electricity. According to my last month's bill, Meralco charged me P10.33 per kWh.

That's P698.xx, mas mura pa rin LPG by a bit.

Considering the "green" points of induction: zero emission, minimal excess heat, no soot in my walls/ceilings, sulit pa rin para sa akin.

Sana lang bigyan tayo ng incentives ng gov't for using energy efficient appliances.

ambilis! computed agad! siguro quiz bee champ ka nung estudyante ka, sir joey. 😀 thanks.

and since my meralco bills (and other bills and groceries) are enrolled in my citibank cash back card, i'll get 5% rebate. so assuming that's php698, i'll just be paying php663, a bit lower than the current price of an 11-kg LPG tank which is php677. pwede na din pala ang induction cooker. 😀

yep, the green points of induction cookers are also some of the reasons i was thinking of getting it. sana merong promo ang government like the palit CFLs last year. parang "trade your old gas stove with a single plate induction cooker".

sir joey, yung induction cooker mo is imarflex. ok kaya ang dowell brand? there are only 3 brands of single coil induction cookers at appliance stores - dowell, imarflex, philips. dowell is the least expensive at php1,200. ung coffee maker ko is a dowell brand. sya lang kasi ang metal thermal jug. yoko kasi glass. so far, ok naman. ala akong problema sa dowell coffee maker ko. dowell is under kolin.

at why do multiple coil induction cookers cost much much more than the single coil?

teka, O/T na yata ako... mods, ok lang kung kelangang imoderate ang post kong ito. 🙂

 
Posted : 09/03/2011 9:48 pm
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