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marigold

Joined: 02 Sep 2005
Posts: 12458
Location: West Sussex

Posted: Sun Oct 16, 05 1:44 pm Post subject:

When I boil the kettle (electric - I'm not a Luddite about everything - I like that it switches itself off

), I usually fill a flask at the same time and use that for the next few drinks.

Flask-hot water is fine for most things and I figure you have to heat the kettle as well as the water each time you boil it, so the more water you boil the more efficient it is (as long as you use all the water) ..... But I could be wrong about that

ele

Joined: 05 Sep 2005
Posts: 814
Location: Derby

Posted: Sun Oct 16, 05 2:59 pm Post subject:

Lozzie wrote:

The "Low Energy Cooking" area of George Marshall's website www.theyellowhouse.org.uk has some interetsing notes about the use of boiling water in the kitchen ... I have just spent about 10 mins looking for the bit on his website that explains why a hob kettle is better than an electric one but I have come up blank - sorry!

Interesting site, I guess cos it says as lot of extra heat is used to take water into the final stage of boiling then switching off the kettle before it quite gets there would save some leccy and be fine for most drinks.

I liked the little rant about how you can't buy dishwashers with hot and cold water feeds, when I bought ours I spent ages trying to find one that would

jema
Downsizer Moderator

Joined: 28 Oct 2004
Posts: 28233
Location: escaped from Swindon

Posted: Sun Oct 16, 05 3:17 pm Post subject:

ele wrote:

I liked the little rant about how you can't buy dishwashers with hot and cold water feeds, when I bought ours I spent ages trying to find one that would

Very true

that would save a lot of energy.

dougal

Joined: 15 Jan 2005
Posts: 7184
Location: South Kent

Posted: Sun Oct 16, 05 3:42 pm Post subject:

ele wrote:

I liked the little rant about how you can't buy dishwashers with hot and cold water feeds, when I bought ours I spent ages trying to find one that would

Its off topic for this thread, but these days good dishwashers
1/ only use a little water, rather less than 20 litres for the cycle
2/ and don't get it very hot - a 50C wash is usually fine (needing only half the heat energy of an 80C wash).
so, actually, they don't use much energy for heating water.
Also, as the yellowhouse site mentions, there is often a comparable amount of water (cold) in the hot pipe between tank and appliance.
The yellowhouse people insulated those pipes - but STILL run off water at the sink until it 'comes hot'.
This would be very energy wasteful if the water was NOT heated by solar, as the yellowhouse people do.
Adding the hot fill connection, and its extra powered valve and its control system, is going to add a few quid to the cost of the machine, and use more materials, to no good effect for ordinary customers.

So - summary: dishwashers nowadays don't have hot water inlets because there's no benefit, and some disadvantage, for almost all buyers.

suse

Joined: 15 Sep 2005
Posts: 1

Posted: Wed Oct 19, 05 3:18 pm Post subject: yellow house
what an excellent site!

thos

Joined: 08 Mar 2005
Posts: 1139
Location: Jauche, Duchy of Brabant (Bourgogne-ci) and Charolles, Duchy of Burgundy (Bourgogne-�a)

Posted: Wed Oct 19, 05 3:31 pm Post subject:

marigold wrote:

Flask-hot water is fine for most things ...

Not tea, which is about the only thing I use the kettle for.

thos

Joined: 08 Mar 2005
Posts: 1139
Location: Jauche, Duchy of Brabant (Bourgogne-ci) and Charolles, Duchy of Burgundy (Bourgogne-�a)

Posted: Wed Oct 19, 05 3:36 pm Post subject:

Fiddlesticks Julie wrote:

So if my kettle blows up then I need to persuade himself to invest in a woodburning Aga!

Sorry, Agas are only oil, gas or electric. You can have a Rayburn.

I'm looking into ranges at the moment - I'm amazed how many companies make them. Unfortunately, most only seem to sell to the UK or Ireland.

marigold

Joined: 02 Sep 2005
Posts: 12458
Location: West Sussex

Posted: Wed Oct 19, 05 3:44 pm Post subject:

thos wrote:

marigold wrote:

Flask-hot water is fine for most things ...

Not tea, which is about the only thing I use the kettle for.

You are quite right, though tea made with flask-hot water is a little better than tea kept hot in a flask. I did say "most things"

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