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Horstmann E7

JOHNPT · 2010-10-11 22:06:47

I have changed a few Graslin E7 timers over the past year with Horstmann E7 timer. Although I find the Horstmann E7 very good they have a disadvantage that they have to be set for a min of 4 hrs per night (sometimes the owner only wants an hour per night) Does anyone recommend an alternative product which is reliable

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11-10-2010 11:06pm

#1

JOHNPT

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I have changed a few Graslin E7 timers over the past year with Horstmann E7 timer. Although I find the Horstmann E7 very good they have a disadvantage that they have to be set for a min of 4 hrs per night (sometimes the owner only wants an hour per night) Does anyone recommend an alternative product which is reliable

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#2 11-10-2010 11:29pm
M cebee

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ya -4hrs may be excessive for a smaller cylinder(never really thought about it)

what's wrong with all these grasslin's??

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#3 11-10-2010 11:51pm
Dubstar07

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Siemens do good models usually.
What's the problem with the Grasslin

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#4 12-10-2010 8:53am
JOHNPT

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I have changed 4 in last year which were burnt where they were connected - I not sure is it because they were loose connections or is there a fault with them.

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#5 12-10-2010 12:17pm
M cebee

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the cable connections? sounds like a poor install

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#6 12-10-2010 2:36pm
astrofool

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This the Horstman Electronic 7 (http://www.voltimum.co.uk/news/13565/cm/horstmann-electronic-7---simple-to-use--simple-to-install-and-fully-beab-accredited.html), or the quartz timer one?

The electonic allows you to set 3 on/off intervals, as well as a timed boost.

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#7 13-10-2010 4:22pm
JOHNPT

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Ya was burnt around cable connections - possibly not tightened properly but having changed 4 with same problem - I dont trust them - maybe screws come loose easily - they were burnt bably and plastic melted. I havent seen any problems with Siemens model - only Grasslin

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#8 14-10-2010 4:09pm
Red Alert

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Just wondering - does anyone ever wire the main element up to the meter-switched off-peak circuits like Storage heaters? It seems relatively common in the UK, and avoids having to set the timer to match the Nightsaver times.

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#9 14-10-2010 4:42pm
M cebee

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on via timer
off via control pair from esb at 8am approx

through a contactor

-still needs a timer unless -you're heating water for 8hrs

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#10 29-12-2010 12:54am
liveandnetural

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grasslin timer recall
http://www.boards.ie/vbulletin/showthread.php?t=258033

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