jakeybaby Posted January 30, 2009 Share Posted January 30, 2009 I have a series 11 and wanted to know if there is a heated front screen for them ? Tim Quote Link to comment Share on other sites More sharing options...
Gazzar Posted January 30, 2009 Share Posted January 30, 2009 I have a series 11 and wanted to know if there is a heated front screen for them ?Tim devon 4x4, about 150 quid. G. Quote Link to comment Share on other sites More sharing options...
jakeybaby Posted January 30, 2009 Author Share Posted January 30, 2009 devon 4x4, about 150 quid.G. Thanks Gaz thats looks just the job Tim Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted January 30, 2009 Share Posted January 30, 2009 I hope you get more sense out of them than I did on the wiring: - How much current does it draw? - Dunno mate. - Do I wire both panes in Series or parallel? - Dunno mate. - Do I need a timer on it (as many cars do) - Dunno mate Still bought it as there's not many alternatives that actually give you forward visibility in a damp Series, but I have found that you'll probably need a BIG (50A) relay per pane as the inrush current is pretty big (it pops a 30A fuse). In the absence of any sensible guidance from either Devon or Uroglas (who make them but dealing with them is like talking to fog ) I would run the screen for short-ish periods to demist it and then switch off, either via a timer or just with a switch. Not to mention the fat that a Series alternator will never keep up with the current draw, especially if you've got your headlights on too. A variation of Bull Bar Cowboy's Series/Parallel electric fan control circuit could be a nifty thing, run it at full pelt on the timer to demist quickly then drop down to half power to keep things clear with lower current draw. Quote Link to comment Share on other sites More sharing options...
jakeybaby Posted January 30, 2009 Author Share Posted January 30, 2009 I hope you get more sense out of them than I did on the wiring:- How much current does it draw? - Dunno mate. - Do I wire both panes in Series or parallel? - Dunno mate. - Do I need a timer on it (as many cars do) - Dunno mate Still bought it as there's not many alternatives that actually give you forward visibility in a damp Series, but I have found that you'll probably need a BIG (50A) relay per pane as the inrush current is pretty big (it pops a 30A fuse). In the absence of any sensible guidance from either Devon or Uroglas (who make them but dealing with them is like talking to fog ) I would run the screen for short-ish periods to demist it and then switch off, either via a timer or just with a switch. Not to mention the fat that a Series alternator will never keep up with the current draw, especially if you've got your headlights on too. A variation of Bull Bar Cowboy's Series/Parallel electric fan control circuit could be a nifty thing, run it at full pelt on the timer to demist quickly then drop down to half power to keep things clear with lower current draw. Thanks for the advice, I will no doubt have problems wiring it in, wiring and alternator should be ok as i`m running a td5 engine in this one, its a special i`ve just bought off Malcolm (whitbread) Tim Quote Link to comment Share on other sites More sharing options...
landroversforever Posted January 30, 2009 Share Posted January 30, 2009 - Do I wire both panes in Series? It would help as they are for a series Quote Link to comment Share on other sites More sharing options...
Snagger Posted January 31, 2009 Share Posted January 31, 2009 They should be wired in parallel, as wiring in series will give a big voltage drop on the second screen and the combined resistance will be too high anyway. The thick end of 50A sounds about right until they warm up and the resistance increases, like FF said. The relay and fuse on my RRC's front screen are prety hefty (60A, I think). If your alternator and other loads on it permit, having the screen heated all the time makes it more resistant to stones - the increased ductility of the warm glass will make it less likely to chip or crack. Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted January 31, 2009 Share Posted January 31, 2009 They should be wired in parallel, as wiring in series will give a big voltage drop on the second screen and the combined resistance will be too high anyway. True, although with mine temporarily wired up in series it does demist (very slowly) and once clear stays clear with much less current draw than running at full pelt. Quote Link to comment Share on other sites More sharing options...
Daan Posted January 31, 2009 Share Posted January 31, 2009 Are these windows triplex? The standard toughened screens go in a million pieces once hit and you cant see anything when this happens. Not to mention loss of life if a tree sticks through it. Daan Quote Link to comment Share on other sites More sharing options...
Snagger Posted February 1, 2009 Share Posted February 1, 2009 The normal screens are available as duplex laminate or as a toughened single pane. The heated screens would be at least duplex, possible triplex. With luck, the elements will be in a reasonably thick vinyl laminate, with glass oneither side, which would be a strong composite. As FF has found, wiring them in series will vastly reduce the current draw, but will also make them very slow to clear the screen, somewhat defeating the purpose. I'd fit them in parallel with a 5min timer relay to prevent excess drain on the electrical system. Quote Link to comment Share on other sites More sharing options...
jakeybaby Posted February 1, 2009 Author Share Posted February 1, 2009 The normal screens are available as duplex laminate or as a toughened single pane. The heated screens would be at least duplex, possible triplex. With luck, the elements will be in a reasonably thick vinyl laminate, with glass oneither side, which would be a strong composite.As FF has found, wiring them in series will vastly reduce the current draw, but will also make them very slow to clear the screen, somewhat defeating the purpose. I'd fit them in parallel with a 5min timer relay to prevent excess drain on the electrical system. Thanks for the help lads, I`m not bad with mechanics but the electrics side is all a bit much but i will give it a go. Tim Quote Link to comment Share on other sites More sharing options...
HoggyN Posted February 1, 2009 Share Posted February 1, 2009 Tim Another heated screen supplier here Tamworth, so possibly nearer to you. Quote Link to comment Share on other sites More sharing options...
Martin Cooper Posted July 8, 2011 Share Posted July 8, 2011 I have these fittd to mine. To my mind an essentail fitment for safety and conveniences. Should be law for anything otehr thatn a 'sunny days' series. On modern roads, I'd make a series, an MOT failure without 'em! Exteme? Maybe, but not by much. Modern conditions demand it. Really, the best way to a clear screen and keep it clear in your condnesation ridden series. High on the list of essential mods for a daily-driver series along with disc brakes & Defender mirrors. You gotta see where your going in thoes first few minutes for your own and others safety. I've defender heater too which also helps a lot. But it won't demist as quick as heated screens. It can be fitted to (the existing inlet with a bit of flat ducting) I'm running a 2.5 petrol (altenator) so have few power issues tho' But don't listen to me, I'd ban woofter-plate too. And any of that "Croc Dundee' faker nonsense. Who are those guys kiddin'?! Seriously tho' Fit those 2 x screns. You won't regret it. Quote Link to comment Share on other sites More sharing options...
missingsid Posted July 16, 2011 Share Posted July 16, 2011 I just looked and found this site which looks to be a good price? Windscreen Wiring Circuit is for a single screen and needs to be doubled. Now all I need is to be able to cut down a series 2/3 one? Marc. Quote Link to comment Share on other sites More sharing options...
David Sparkes Posted July 16, 2011 Share Posted July 16, 2011 Why do you need to cut one down? What are you thinking of fitting it to? BTW, check availability before getting too excited. Supply of these tends to be intermittent. Price is immaterial, as I believe there is only one supplier, so the only choice is to buy, or not. Cheers. Quote Link to comment Share on other sites More sharing options...
Snagger Posted July 16, 2011 Share Posted July 16, 2011 I have these fittd to mine. To my mind an essentail fitment for safety and conveniences. Should be law for anything otehr thatn a 'sunny days' series. On modern roads, I'd make a series, an MOT failure without 'em! Exteme? Maybe, but not by much. Modern conditions demand it. Really, the best way to a clear screen and keep it clear in your condnesation ridden series. High on the list of essential mods for a daily-driver series along with disc brakes & Defender mirrors. You gotta see where your going in thoes first few minutes for your own and others safety. I've defender heater too which also helps a lot. But it won't demist as quick as heated screens. It can be fitted to (the existing inlet with a bit of flat ducting) I'm running a 2.5 petrol (altenator) so have few power issues tho' But don't listen to me, I'd ban woofter-plate too. And any of that "Croc Dundee' faker nonsense. Who are those guys kiddin'?! Seriously tho' Fit those 2 x screns. You won't regret it. I have very little fogging in my 109, and the Defender heater clears it very fast. I'll just wait the 10-15 seconds it takes to clear in the rare circumstances the screen has fogged up and keep them clear when sitting in the car with the engine off by opening the window a few mm. Heated screens are great for most drivers - I retro-fitted one to my RRC and was very pleased with it. However, about 30% of drivers suffer problems with them at night as the vertical elements cause visual illusions or distortions. My wife is one of those people, and the screen made it impossible for her to gauge rate of closure with other vehicles and develop tunnel vision at night on unlit roads, even though she has good eye health and has no problems with other cars or with the RR since we refit an standard screen. I'd advise anyone considering heated screens to try a vehicle fitted with them at night in all road conditions first before splashing out. (By the way, that 30% figure came from the windscreen fitters who replaced the screen for us - they seemed completely unsurprised when I mentioned the issue, which had seemed very unusual to me previously). Quote Link to comment Share on other sites More sharing options...
missingsid Posted July 21, 2011 Share Posted July 21, 2011 Why do you need to cut one down? What are you thinking of fitting it to? BTW, check availability before getting too excited. Supply of these tends to be intermittent. Price is immaterial, as I believe there is only one supplier, so the only choice is to buy, or not. Cheers. Can't remember for sure but I thought that Series 1 had smaller panels? Marc. Quote Link to comment Share on other sites More sharing options...
Gazzar Posted July 21, 2011 Share Posted July 21, 2011 Can't remember for sure but I thought that Series 1 had smaller panels? Marc. No, bigger panels, the cab in a series 1 is much bigger than any later series/defender. Quite a nice place to be, actually. The lower bulkhead is the same width (ish) but the bulkhead doesn't have the styling curve at the waist, it goes straight up, and thus a bigger cabin. You'll not get the panels to fit a series 1, unless you get them made specially. Maybe heating the frame would do????? Kidding. G. Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted July 21, 2011 Share Posted July 21, 2011 I'd be tempted to bolt an Eberspacher somewhere unobtrusive and call it done - almost instant heat and far more efficient than anything LR have fitted. Quote Link to comment Share on other sites More sharing options...
Cartman Posted July 21, 2011 Share Posted July 21, 2011 I have fitted just the one pane to the drivers side on out S2A and wired via a relay at 25 Amperes. Not had to use it in anger yet but bound to soon? We did a group purchase through the Series 2 club for around 50 sets of screens at £110 a pair a year ago direct with Uroglas Quote Link to comment Share on other sites More sharing options...
kevanf1 Posted October 10, 2011 Share Posted October 10, 2011 I have fitted just the one pane to the drivers side on out S2A and wired via a relay at 25 Amperes. Not had to use it in anger yet but bound to soon? We did a group purchase through the Series 2 club for around 50 sets of screens at £110 a pair a year ago direct with Uroglas Which is currently running again Quote Link to comment Share on other sites More sharing options...
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