are kwh the same for gas and electric

[F]

But, certainly on days when the house needs to be heated, it's not really 'wasted'. It's just providing additional space heating.

[Scion]

fred put finger to keyboard:

I worked with someone who thought it was a waste to use a teabag only once. He would dry out a used teabag and re-use it. As this was in an office with a kitchenette area, he didn't even have to supply the original teabags - he would fish other people's out of the sink.

[charles]

the was an advert running in the late 1960s for some expensive hifi equipment - for which you would need to save up. One way of doing this was to re-use tea bags. the alleged winner got 173 cups out of netea bag.

[Dave Liquorice]

As you say tiny, how much water are we talking about, teaspoon full?

All I know is that on the backup camping gas hob it takes longer to boil a similar quantity of water than the electric kettle takes. Not sure what the gas burner rating is though, probably not the 2.5 to

3kW of the rapid boil kettle... Another point of waste may also come from people not adjusting the gas correctly and having the ends of the flames licking up the sides of the kettle. The gas ought to be adjusted so the flames are just within the kettle base.

IIRC the OP was worried about energy bills, TBH short duration high power loads like the kettle use bugger all. The PC sat in the corner churning away at 75 W for 10 hours uses the same as a 3 kW kettle used 5 times for 3 mins/time:

75 * 10 = 750 Whr 3000 * (3/60) * 5 = 750 Whr

[<me9]

I did a test some years ago with my then electric kettle and the whistling kettle on the gas cooker.

It worked out (roughly) as more KWH for gas in proportion to the ratio of gas to electric prices.

In other words it cost virtually the same, but the gas kettle was less efficient, but put more heat into the room.

So electric kettle in summer and gas in winter.

With the (very very) old cooker with a pilot light we put the kettle over the pilot overnight for a quick boil in the morning. The pilot had it warm by morning. No longer worthwhile with the new(ish) cooker, so now electric.

[<me9]

You get the rated KWH /without/ condensing. More if you do. That's why condensing boilers are almost "loss free".

[Dave Liquorice]

k - for multiplier kilo = x1,000 W - Watts, persons name so uppercase. Hr - Abreviation for hours, not H for Henry (unit of inductance, uppercase persons name).

Explain. If you don't condense the water how do you recover the latent heat of vaporisation?

[<me9]

I'm not prepared to be pedantic. the meaning was clear.

The calorific value of the fuel is traditionally measured without condensing.

Thus the latent heat is a 'bonus' in the traditional 'efficiency' calculations when using a condensing boiler.

More an accountancy fiddle than a physical/engineering definition!

[Bill Wright]

I did the same thing for the same reason and it's been a great success. Saves heating up a very long pipeful of water just to wash a cup.

Bill

[Huge]

"When I use a word,? Humpty Dumpty said in rather a scornful tone, ?it means just what I choose it to mean ? neither more nor less.?"

[Bob Eager]

The usual law applied. The correction had a mis-spelling (Abreviation) and an inaccuracy ("uppercase" should have been "capitalised")!