Are there any plug in (or even wired in) timers which allow one to
turn something on for an hour or so and then turn off automatically?

I'm after something like the immersion heater 'booster' switches that
allow you to press a button to turn the immersion heater on for an
hour but then revert to normal timed operation. I really want a plug
in version though for controlling 1kW or so and I want it at a
reasonable price, not the 20 pounds or more that the immersion heater
switches cost.

Any suggestions?

--
Chris Green

In message ,
writes
Are there any plug in (or even wired in) timers which allow one to
turn something on for an hour or so and then turn off automatically?

I'm after something like the immersion heater 'booster' switches that
allow you to press a button to turn the immersion heater on for an
hour but then revert to normal timed operation. I really want a plug
in version though for controlling 1kW or so and I want it at a
reasonable price, not the 20 pounds or more that the immersion heater
switches cost.

Most modern programmers have an "hour" button

I have an RWB9 - press button, get an hour "on time"

I forget what it's rated at, but the relays inside are 5A rated IIRC

--
geoff

wrote in message
...
Are there any plug in (or even wired in) timers which allow one to
turn something on for an hour or so and then turn off automatically?

I'm after something like the immersion heater 'booster' switches that
allow you to press a button to turn the immersion heater on for an
hour but then revert to normal timed operation. I really want a plug
in version though for controlling 1kW or so and I want it at a
reasonable price, not the 20 pounds or more that the immersion heater
switches cost.

Any suggestions?

--
Chris Green

Costco (Lakeside) have some Unicom timers with a countdown feature, they
have had them for years. Not sure if they return to normal times operation
after the countdown timer has finished though.

Sparks...

raden wrote:
In message ,
writes
Are there any plug in (or even wired in) timers which allow one to
turn something on for an hour or so and then turn off automatically?

I'm after something like the immersion heater 'booster' switches that
allow you to press a button to turn the immersion heater on for an
hour but then revert to normal timed operation. I really want a plug
in version though for controlling 1kW or so and I want it at a
reasonable price, not the 20 pounds or more that the immersion heater
switches cost.

Most modern programmers have an "hour" button

I have an RWB9 - press button, get an hour "on time"

I forget what it's rated at, but the relays inside are 5A rated IIRC

.... but I suspect that such CH timers are expensive, maybe even more
than the 20 pounds or so for an immersion heater switch.

--
Chris Green

In message ,
writes
raden wrote:
In message ,
writes
Are there any plug in (or even wired in) timers which allow one to
turn something on for an hour or so and then turn off automatically?

I'm after something like the immersion heater 'booster' switches that
allow you to press a button to turn the immersion heater on for an
hour but then revert to normal timed operation. I really want a plug
in version though for controlling 1kW or so and I want it at a
reasonable price, not the 20 pounds or more that the immersion heater
switches cost.

Most modern programmers have an "hour" button

I have an RWB9 - press button, get an hour "on time"

I forget what it's rated at, but the relays inside are 5A rated IIRC

... but I suspect that such CH timers are expensive, maybe even more
than the 20 pounds or so for an immersion heater switch.

Dunno - I didn't pay for mine

but yes, prolly

Costco are selling timers 3 for a tenner ATM - you could take a look,
that should be pikey enough for you

--
geoff

Owain wrote:
wrote:
Are there any plug in (or even wired in) timers which allow one to
turn something on for an hour or so and then turn off automatically?
I'm after something like the immersion heater 'booster' switches that
allow you to press a button to turn the immersion heater on for an
hour but then revert to normal timed operation. I really want a plug
in version though for controlling 1kW or so and I want it at a
reasonable price, not the 20 pounds or more that the immersion heater
switches cost.

You could make one with a Maplin timer board and a relay to do the
switching, or a programmable relay from RS.

RS have mechanical run-back timers - try stock codes 536-2779 328-184

But by the time you've added on the cost of a case, 13A panel socket,
etc, you're probably looking at £20 or so anyway.

Very true, that's the problem. Plug in timers do most of what I want
(and only cost a few pounds) but a "turn on for an hour" button would
make them perfect.

I don't know their prices, but Elkay have switches which do exactly what
you want (although not plug-in).

Horribly expensive! Like £75 for some of them.

--
Chris Green

wrote in message
...
Owain wrote:
wrote:
Are there any plug in (or even wired in) timers which allow one to
turn something on for an hour or so and then turn off automatically?
I'm after something like the immersion heater 'booster' switches that
allow you to press a button to turn the immersion heater on for an
hour but then revert to normal timed operation. I really want a plug
in version though for controlling 1kW or so and I want it at a
reasonable price, not the 20 pounds or more that the immersion heater
switches cost.

You could make one with a Maplin timer board and a relay to do the
switching, or a programmable relay from RS.

RS have mechanical run-back timers - try stock codes 536-2779 328-184

But by the time you've added on the cost of a case, 13A panel socket,
etc, you're probably looking at £20 or so anyway.

Very true, that's the problem. Plug in timers do most of what I want
(and only cost a few pounds) but a "turn on for an hour" button would
make them perfect.

I don't know their prices, but Elkay have switches which do exactly what
you want (although not plug-in).

Horribly expensive! Like £75 for some of them.

--
Chris Green

These look like the Costco ones I mentioned before...
http://cgi.ebay.co.uk/ws/eBayISAPI.d...m=110073202311

You may want to ask the seller if these ones feature the countdown timer.

I have one in front of me now, you can have it set to timed (with a
randomisation, so the on and off time is randomised by up to an hour either
way, if you wish) or you can have it set to countdown, when the countdown is
finished, it does NOT revert to timed operation automatically, you have to
change the mode back to timed.

Sparks...

Sparks wrote:
wrote in message
...
Owain wrote:
wrote:
Are there any plug in (or even wired in) timers which allow one to
turn something on for an hour or so and then turn off automatically?
I'm after something like the immersion heater 'booster' switches that
allow you to press a button to turn the immersion heater on for an
hour but then revert to normal timed operation. I really want a plug
in version though for controlling 1kW or so and I want it at a
reasonable price, not the 20 pounds or more that the immersion heater
switches cost.

You could make one with a Maplin timer board and a relay to do the
switching, or a programmable relay from RS.

RS have mechanical run-back timers - try stock codes 536-2779 328-184

But by the time you've added on the cost of a case, 13A panel socket,
etc, you're probably looking at £20 or so anyway.

Very true, that's the problem. Plug in timers do most of what I want
(and only cost a few pounds) but a "turn on for an hour" button would
make them perfect.

I don't know their prices, but Elkay have switches which do exactly what
you want (although not plug-in).

Horribly expensive! Like £75 for some of them.

--
Chris Green

These look like the Costco ones I mentioned before...
http://cgi.ebay.co.uk/ws/eBayISAPI.d...m=110073202311

You may want to ask the seller if these ones feature the countdown timer.

I have one in front of me now, you can have it set to timed (with a
randomisation, so the on and off time is randomised by up to an hour either
way, if you wish) or you can have it set to countdown, when the countdown is
finished, it does NOT revert to timed operation automatically, you have to
change the mode back to timed.

OK, thanks, I'll follow that up, £16.99 for three is a very reasonable
price.

--
Chris Green