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Post by Andyberg on Dec 27, 2017 17:20:04 GMT
I often run mine for 12 hours at a time, done so today, no adverse effects. They cut out automatically if they get too hot, mine happily runs all day as do a few others I know. They don't like cycling apparently ( cutting in and out constantly like if you only had a small radiator connected so it's getting too hot then cooling IYKWIM) but can't see that being an issue on boat CH.
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Post by Telemachus on Dec 27, 2017 17:21:13 GMT
Ive run out of coal but have some diesel... I have a question regarding heating and the webasto unit. Im on shore power and would like to know if its unadvisable to run a Webasto Thermo Top C for most of the day, or is it better to run it for a few hours and then off for so many hours? The main thing is to avoid the Webasto cycling on and off over a fairly short time period (called “short cycling”) as this tends to coke them up. So you may have thermostatic valves on the radiators. Bad, because when the cabin heats up and they shut down, the Webasto has no-where to dump the heat so it shuts down. Then shortly afterwards the temperature of the water reduces and it re-lights, then shuts down shortly afterwards. Or you may have a wall mounted thermostat that shuts the Webasto off as the set temperature is reached, then turns it on not long afterwards. Or if you have neither but the Webasto can produce more heat than the rads can dump into a hot cabin, again you get short cycling or at best it goes onto 1/2 power which is also a bit prone to coking it. So for these reasons, it’s best to run the heater hard for a while, then turn it off for a while as soon as any of the things I mention above happen. I consider 1hr on to be the minimum desirable on time. Leave it off for long enough that the next run is at least an hour, preferably more. There’s no particular issue with starting it when it is hot, the aim is to ensure it stays running for an hour or more. |
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Post by quaysider on Dec 27, 2017 19:33:36 GMT
I have to admit, before I fitted the fire, we had it running all the time... which WOULD have been ok were we plugged in - instead, I think it walloped the batteries.
These days, I have it set to come on somewhere around 5 or 6 am - (ie about an hour and half before I plan to get up)... ours is quite a big system, with pipes going the complete "circumference" of the boat along with 7 rads, a heated towel rail and 3 fin rads... able to dissipate 6.75 kw in theory (although the websasto is the 5.25 kw unit) + the calorifier... I don't "think" ours will ever cycle /
I just wish the control it comes with had an automatic shut OFF after it's come on so you could leave the boat for a day or 2 without worrying.
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Post by Mr Stabby on Dec 27, 2017 19:47:12 GMT
The Webasto Thermo Top C was designed to keep truck engines warm overnight primarily in Scandinavian countries and they prefer to be "run hard". Provided you have sufficient battery power then the best way to use them is to run them as hot as you can for as long as you can. According to Webasto's website www.webasto.com/gb/markets-products/truck/heating-systems/products/thermo-top-c/ there are over a million of them in use, the vast majority of these will be running flat out all night for at least five nights a week. |
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Deleted
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Post by Deleted on Dec 27, 2017 20:05:40 GMT
The Webasto Thermo Top C was designed to keep truck engines warm overnight primarily in Scandinavian countries and they prefer to be "run hard". Provided you have sufficient battery power then the best way to use them is to run them as hot as you can for as long as you can. According to Webasto's website www.webasto.com/gb/markets-products/truck/heating-systems/products/thermo-top-c/ there are over a million of them in use, the vast majority of these will be running flat out all night for at least five nights a week. Not arguing with the usage but it would seem odd to run a burner all night just to keep the engine warm. Do they also warm the cab or is there a second (warm air?) Heater involved. It just seems like quite a lot of fuel usage but I guess as its heating the cost is quite low as red diesel could be used. I don't know much about it but seemed odd to me that a vehicle engine would be kept heated all night. I suppose if its really cold then there would be some sort of engine maintenance saving to be achieved by keeping it warm. |
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Post by Telemachus on Dec 27, 2017 20:15:32 GMT
The Webasto Thermo Top C was designed to keep truck engines warm overnight primarily in Scandinavian countries and they prefer to be "run hard". Provided you have sufficient battery power then the best way to use them is to run them as hot as you can for as long as you can. According to Webasto's website www.webasto.com/gb/markets-products/truck/heating-systems/products/thermo-top-c/ there are over a million of them in use, the vast majority of these will be running flat out all night for at least five nights a week. Not arguing with the usage but it would seem odd to run a burner all night just to keep the engine warm. Do they also warm the cab or is there a second (warm air?) Heater involved. It just seems like quite a lot of fuel usage but I guess as its heating the cost is quite low as red diesel could be used. I don't know much about it but seemed odd to me that a vehicle engine would be kept heated all night. I suppose if its really cold then there would be some sort of engine maintenance saving to be achieved by keeping it warm. Presumably by keeping the engine coolant hot you allow the normal cab heating to work. |
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Post by Mr Stabby on Dec 27, 2017 20:26:58 GMT
The Webasto Thermo Top C was designed to keep truck engines warm overnight primarily in Scandinavian countries and they prefer to be "run hard". Provided you have sufficient battery power then the best way to use them is to run them as hot as you can for as long as you can. According to Webasto's website www.webasto.com/gb/markets-products/truck/heating-systems/products/thermo-top-c/ there are over a million of them in use, the vast majority of these will be running flat out all night for at least five nights a week. I don't know much about it but seemed odd to me that a vehicle engine would be kept heated all night. I suppose if its really cold then there would be some sort of engine maintenance saving to be achieved by keeping it warm. I spent four years driving trucks the length and breadth of Russia in the 1990s and in the Winter we never turned the engine off, day or night, for months at a time. EDIT- some pics www.trucknetuk.com/phpBB/viewtopic.php?f=35&t=51951&p=2297790 |
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Post by Telemachus on Dec 27, 2017 20:29:04 GMT
I don't know much about it but seemed odd to me that a vehicle engine would be kept heated all night. I suppose if its really cold then there would be some sort of engine maintenance saving to be achieved by keeping it warm. I spent four years driving trucks the length and breadth of Russia in the 1990s and in the Winter we never turned the engine off, day or night, for months at a time. That must have been “interesting”! Do you speak Russian? |
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Post by Mr Stabby on Dec 27, 2017 20:31:49 GMT
I spent four years driving trucks the length and breadth of Russia in the 1990s and in the Winter we never turned the engine off, day or night, for months at a time. That must have been “interesting”! Do you speak Russian? Yes, not fluently but not far off. |
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Post by thebfg on Dec 27, 2017 20:34:28 GMT
I don't know much about it but seemed odd to me that a vehicle engine would be kept heated all night. I suppose if its really cold then there would be some sort of engine maintenance saving to be achieved by keeping it warm. I spent four years driving trucks the length and breadth of Russia in the 1990s and in the Winter we never turned the engine off, day or night, for months at a time. EDIT- some pics www.trucknetuk.com/phpBB/viewtopic.php?f=35&t=51951&p=2297790nice post shame the pics have gone. |
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Post by Mr Stabby on Dec 27, 2017 20:41:25 GMT
nice post shame the pics have gone. If you can't see them (or any other Photobucket photos anywhere else on the internet) then you just need to download the Photobucket fix. It's free and it only takes a few seconds. I'll see if I can find the link. EDIT Try this. If you're using Google Chrome, go to the three dots on the top right side of the screen and click them. A drop down should appear. Hover your mouse over "More Tools," and when the next drop down appears, click on extensions. Go to the link towards the bottom that says "Get more extensions." In the search box, type "Photobucket Fix," and hit enter. Click the install button and once it's done, you should be able to see photobucket pictures again. For FireFox users, click on the three bars on the right side of the screen, then click on add ons. Click search for "photobucket hotlink" and click install. Same result. Read more: thunderboat.boards.net/thread/2654/photobucket-fix?hotlinkfix=1514407354202#ixzz52UpPPEOX |
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