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Other Vintage Household Electrical or Electromechanical Items For discussions about other vintage (over 25 years old) electrical and electromechanical household items. See the sticky thread for details. |
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8th Mar 2021, 1:28 pm | #1 |
Pentode
Join Date: Jun 2018
Location: Herefordshire, UK.
Posts: 232
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Unidentified electric greenhouse heater
Hi,
My nan has this vintage greenhouse heater that she's had for many years, and after looking, we can't find a brand, we think it might be Parwin, but are not sure, if you have any idea, please let me know, pictures below. Tom |
8th Mar 2021, 3:38 pm | #2 |
Octode
Join Date: Apr 2016
Location: Ventnor, Isle of Wight, & Great Dunmow, Essex, UK.
Posts: 1,377
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Re: Unidentified electric greenhouse heater
Hi Tom,
Yes, I think you can be pretty sure it's Parwin. I repaired one a couple of years ago for a friend, but I'm sure it had an identifying plate on it somewhere or I wouldn't have known the make. The spiders had created so much web inside over the summer that the fan blades couldn't turn! The one I did had a remote thermostat on an umbilical cord rather than a built in one. I've just typed Parwin into Google and looked at 'images'. Several pictures of your heater are shown. Hope that helps, Cheers Nick |
8th Mar 2021, 6:20 pm | #3 |
Octode
Join Date: Dec 2019
Location: Owston Ferry, North Lincolnshire, UK.
Posts: 1,704
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Re: Unidentified electric greenhouse heater
It might be a silly comment but doesn't the second picture have the name printed on the label above the switch or am I dreaming again?
Dave
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8th Mar 2021, 7:12 pm | #4 |
Nonode
Join Date: Jun 2008
Location: Coningsby, Lincolnshire, UK.
Posts: 2,820
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Re: Unidentified electric greenhouse heater
It does!
Nice heater, looks rather well built! Regards Lloyd |
8th Mar 2021, 7:28 pm | #5 |
Pentode
Join Date: Jun 2018
Location: Herefordshire, UK.
Posts: 232
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Re: Unidentified electric greenhouse heater
Hi all, thanks for the replies, I believe the heater is made by parwin, but would like to know several other things please, they are:
The wattage. The year. The model number It's built like a tank, it's been used for many years and has a nice vintage Eveready plug with unsleved pins on it. Tom |
8th Mar 2021, 9:37 pm | #6 |
Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,536
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Re: Unidentified electric greenhouse heater
The wattage can be found with a simple resistance check- the wirewound elements won't vary madly as they heat up. Or just plug it into one of the cheap plug in monitor boxes.
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9th Mar 2021, 2:53 am | #7 | |
Heptode
Join Date: Mar 2017
Location: Cedar Grove, Wisconsin, USA.
Posts: 823
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Re: Unidentified electric greenhouse heater
Quote:
Dave, USradcoll1, just lurking. |
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7th Apr 2021, 7:47 pm | #8 | |
Pentode
Join Date: Jun 2018
Location: Herefordshire, UK.
Posts: 232
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Re: Unidentified electric greenhouse heater
Quote:
Tom |
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7th Apr 2021, 8:04 pm | #9 |
Dekatron
Join Date: Aug 2016
Location: Colchester, Essex, UK.
Posts: 4,108
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Re: Unidentified electric greenhouse heater
I think....that may have had a 15A round pin plug as standard. I hope it doesn't now have a 13A plug as 3kW is pushing things and could also cause the plug to deteriorate (i know it's difficult to burn down a greenhouse, and for all i know the heater might not even get used..)
If it IS still in use..If you fitted a 15A fused plug (and a socket in the appropriate place) it would hopefully have the advantage that it couldn't be used indoors! Dave |
7th Apr 2021, 8:08 pm | #10 | |
Pentode
Join Date: Jun 2018
Location: Herefordshire, UK.
Posts: 232
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Re: Unidentified electric greenhouse heater
Quote:
Come to think of it, I think the heater was actually a 2.5Kw unit, th plug does not appear to have any burn marks on it. Tom |
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8th Apr 2021, 9:04 am | #11 |
Dekatron
Join Date: Mar 2008
Location: St. Frajou, l'Isle en Dodon, Haute Garonne, France.(Previously: Ellesmere Port, Cheshire, UK.)
Posts: 3,184
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Re: Unidentified electric greenhouse heater
Hi.
Slightly off topic, sorry. A friend of ours had an immersion heater fed from an MK switched 13 amp plug in her airing cupboard. She asked me to fit a 'proper' switch instead. However, I noticed that the heater was rated at FOUR kilowatts, and had been used for many years. Surpisingly, the plug showed little sign of stress, and I still have it in use in my workshop. It's like this one, but in white.
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8th Apr 2021, 9:48 am | #12 | |
Heptode
Join Date: Jun 2017
Location: Southport, Merseyside, UK.
Posts: 646
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Re: Unidentified electric greenhouse heater
Quote:
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8th Apr 2021, 12:08 pm | #13 |
Octode
Join Date: Dec 2019
Location: Owston Ferry, North Lincolnshire, UK.
Posts: 1,704
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Re: Unidentified electric greenhouse heater
3Kw is 13.636A at 220v, 13.04A at 230v and 12.5A at 240v, so a good quality mains plug and 13Amp fuse should be fine. The fuse will nuisance blow eventually when it gets tired but won't blow instantly unless it gets an overload.
Dave
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11th Apr 2021, 11:30 pm | #14 |
Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,536
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Re: Unidentified electric greenhouse heater
And of course if the heater is rated at 240V 3kW, on a 230V supply it will only take 12A and on 220V, 11.5A approximately.
A 220V 3kW rated heater would be a problem at 240V, taking 14.9A at that voltage. (It wouldn't actually be a problem with the typical 220V mains connectors rated at 16A though.)
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