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Spruce

  • Posts: 8653
Diesel Hot Water System ... again
« on: March 26, 2010, 10:23:48 pm »
Hi
For those of you who have diesel fired hot water systems, Ionics, DIY (Eberspacher or Webasto). Does your system just heat the water to the brush head or does it also heat the tank water using a by pass valve as well?
I know from the 'hundreds' of recent threads that the L5 gas heaters just heat the water to the brush head.
Thanks
Spruce
Success is 1% inspiration, 98% perspiration and 2% attention to detail!

The older I get, the better I was ;)

SimonMoore

  • Posts: 139
Re: Diesel Hot Water System ... again
« Reply #1 on: March 27, 2010, 12:40:37 am »
my hotbox (webasto)heats the water to the brush head. the thermopure all in one system feeds back to tank

Darranvps

Re: Diesel Hot Water System ... again
« Reply #2 on: March 27, 2010, 08:34:29 am »
I have a Thermopure PRO-7 from Ionics, and it heats the water in the tank.

matt

Re: Diesel Hot Water System ... again
« Reply #3 on: March 27, 2010, 08:54:54 am »
I have a Thermopure PRO-7 from Ionics, and it heats the water in the tank.

i am surpried by that ( and i didnt know it )

its not the much effeciant way to do it, surely its better to just heat the water on the way to the glass

hardly green either is it ? ? ?

Window Washers

  • Posts: 9036
Re: Diesel Hot Water System ... again
« Reply #4 on: March 27, 2010, 09:11:33 am »
I have a Thermopure PRO-7 from Ionics, and it heats the water in the tank.

i am surpried by that ( and i didnt know it )

its not the much effeciant way to do it, surely its better to just heat the water on the way to the glass

hardly green either is it ? ? ?
I would be shocked if it heats up the tank with hot, maybe got confused by an over flow putting hot in the tank, I dont think Ionics would do something like that, forget the green, it would cost forture each day to use it.
If your not willing to learn, No one can help you, If you are determined to learn, No one can stop you ;)

Re: Diesel Hot Water System ... again
« Reply #5 on: March 27, 2010, 09:32:19 am »
Hey take no notice of me i've probably got it all wrong but my understanding is...


All deisel systems heat a small tank of water- 50l for example- and this is fed to the brush head, or back to the main tank, or mixed with cold water from the main tank.


LPG on demand systems go straight to the brush. However i have a tap to a main tank by pass on both of mine, this allows for release of pressure to stop over night hose swelling, fast fault finding, and de-icing of reels by repeated pressuring up.

But i do not have diesel so this is just my best guess.

Nathanael Jones

  • Posts: 5596
Re: Diesel Hot Water System ... again
« Reply #6 on: March 27, 2010, 09:33:44 am »
The Purefreedom one heats a separate coil of coolant liquid ( 6 - 10 litres I'd guess) that passes through a heat exchanger,..so its pretty much "on demand" heating even if done indirectly.

Window Washers

  • Posts: 9036
Re: Diesel Hot Water System ... again
« Reply #7 on: March 27, 2010, 09:35:23 am »
Hey take no notice of me i've probably got it all wrong but my understanding is...


All deisel systems heat a small tank of water- 50l for example- and this is fed to the brush head, or back to the main tank, or mixed with cold water from the main tank.


LPG on demand systems go straight to the brush. However i have a tap to a main tank by pass on both of mine, this allows for release of pressure to stop over night hose swelling, fast fault finding, and de-icing of reels by repeated pressuring up.

But i do not have diesel so this is just my best guess.
would like to pop over and look at your systems one day Clive ?
If your not willing to learn, No one can help you, If you are determined to learn, No one can stop you ;)

Nathanael Jones

  • Posts: 5596
Re: Diesel Hot Water System ... again
« Reply #8 on: March 27, 2010, 10:50:21 am »
Inside a PF system:


Spruce

  • Posts: 8653
Re: Diesel Hot Water System ... again
« Reply #9 on: March 27, 2010, 12:32:34 pm »
Thanks chaps
I really appreciate your input. I am in the process of putting a DIY system together - 2 man, and have just realised that the 2 stainless steel heat exchangers only hold 175mm of water each. A Webasto 5KW furnace as per Nathanael system will heat that up in seconds, hence the large expansion/header tank.
I was also wanting to instal a bathroom towel rail as I always have a pile of soaking wet towels at the end of the day as I go round after cleaning and dry the entrance doors and sills down (although I try to blade the sills first to remove as much sitting water as I can). But that's me - my son doesn't dry the doors down and I haven't heard a complaint about that yet, even although I cleaned all his customers before he joined the business.
Spruce.
Success is 1% inspiration, 98% perspiration and 2% attention to detail!

The older I get, the better I was ;)

thermoclean

  • Posts: 168
Re: Diesel Hot Water System ... again
« Reply #10 on: March 27, 2010, 06:26:36 pm »
i have been using these systems for years and the best advice i can give us if you have a 5kw heater
give it 5kw of duty these heaters work best when pushed. you should have at least 6 liters of coolant
in your curcuit

Nathanael Jones

  • Posts: 5596
Re: Diesel Hot Water System ... again
« Reply #11 on: March 27, 2010, 08:05:29 pm »
isn't 5KW a bit small? Most WFP heaters are the 9kw model aren't they?

euan78

  • Posts: 37
Re: Diesel Hot Water System ... again
« Reply #12 on: March 27, 2010, 08:16:11 pm »
isn't 5KW a bit small? Most WFP heaters are the 9kw model aren't they?
:o do you think so mate im getting a hot water system fitted at pure freedom on thurs and its only 5.2 surely it will be good enough they have a 9 kw but thats on the two man set up.

Spruce

  • Posts: 8653
Re: Diesel Hot Water System ... again
« Reply #13 on: March 27, 2010, 08:21:57 pm »
In Nathanael's picture is a Webasto Thermo Top C and rated at 5.2kw.

I've got the unit now and it certainly heated a 10 litre bucket of water in no time. I am sure PF know exactly what they are doing so I am sure the 2 man unit you are having fitted will be man enough to do the job.

Nat, - is there a manufacturers name embeded in that header tank please?

Thanks

Bruce
Success is 1% inspiration, 98% perspiration and 2% attention to detail!

The older I get, the better I was ;)

Re: Diesel Hot Water System ... again
« Reply #14 on: March 27, 2010, 11:11:46 pm »
Judgeing from the pics that's car heater hose.That's what i use, great minds and all that.

No objection to you having a look ian, but it's probably less bother for me to send pics. It's not that complex.
1. i use car heater hose after heater
2. The hose splits in two after the heater to feed two pumps and two reels
3.After each pump the hose splits again with a tap, one part returning to the tank, the other to the reel.So for example if i turn the pump on the green light turns red as it pressures up.If i release the tap the pressure flushes back into the tank and the green light comes on with the pump working just the same as if i had turned the tap on at the pole.
If i close the tap it repressures and the light turns red. On cold mornings when much of the reel is frozen five or six hot flushes of this kind 'clear' the reel. If problems arise whilst working i can go back to the van and 'fiddle about' just the same as if was turning the tap on and off except that i do not have to walk to the end of the reel every time, and there is no wasted water.

At the end of a working day i can depressure the system back into the tank which stops the hoses swelling.

4. The reels are roof mounted and fixed.This makes them much easier to use and detangle.Both reels can exit out of the same door.Imagine you are parked on a busy road, this is when having both hoses come through the kerbside door is usefull.
5. The reels are electrically driven with brackets anchoring this mechanism securely to the reels.This makes repeated use such as a typical domestic day far easier, and more importantly from an earnings perspective, far faster.
6. I have two water outlets from the bottom of the skid mounted 800l tank, both with taps on.In normal use i only use one, and this goes to the heater, but i do have an inline filter just before the heater. I expect that you have strainers just before the pumps, well so do i, but the inline one is extra and will save you many problems.

The feed that is normaly used supplies two varistreams and pumps that are attached so that they can also be taken off and put inside during cold weather.The feed that is not used goes to another varistream and pump.IE, I have three of these on board and could supply three operators, or if i had a problem switch supply or switch pumps.

It's true that i do not carry three reels, but i do have a third at home if reqiured.

7.A 2.4 m closed length three stage trade ladder lies on cross members in the roof.

8. A grid with bungee rope interlinked across holds securely and displays squeeges, tee bars, wagtails, microfibres(good for drying out

9. Two little see through plastic drawer towers hold bits such as tape, ptfe, taps, jubilee clips, gas spanner etc.

10. The poles in use sit out of the way over the tank in transit and during winding in, other poles are stored in the roofspace.

As more suppliers start to fit these systems i find several of them a bit clueless as to the needs in practice.As with poles it took an awfull long time for the numpties to cotton on to the shorter closed lenght idea, many features that wouldn't actually cost any money but make life easier are ignored while people pay a lot of money for second rate stuff.

Re: Diesel Hot Water System ... again
« Reply #15 on: March 28, 2010, 06:17:23 pm »
Bump ::)

thermoclean

  • Posts: 168
Re: Diesel Hot Water System ... again
« Reply #16 on: March 28, 2010, 08:43:44 pm »
5kw is ok for one man but you want 9kw plus for two reels or 3 guys with trolleys.

Spruce

  • Posts: 8653
Re: Diesel Hot Water System ... again
« Reply #17 on: March 28, 2010, 09:07:45 pm »
Hi Slumpbuster
that new vahn of yours sound the best. Would love to see pictures of the finished product - and thanks for all the info you have given.
Thanks again
Spruce
Success is 1% inspiration, 98% perspiration and 2% attention to detail!

The older I get, the better I was ;)

drwindows

  • Posts: 258
Re: Diesel Hot Water System ... again
« Reply #18 on: March 28, 2010, 09:19:35 pm »
Quote
i am surpried by that ( and i didnt know it )

its not the much effeciant way to do it, surely its better to just heat the water on the way to the glass

hardly green either is it ? ? ?

Thermopure systems can do both.

As usual, quick to criticise ionics

As usual, don't have a clue what you're talking about.

matt

Re: Diesel Hot Water System ... again
« Reply #19 on: March 28, 2010, 11:24:06 pm »

I have a Thermopure PRO-7 from Ionics, and it heats the water in the tank.

Notice, he says "i have a thermo blah blah "


I have a Thermopure PRO-7 from Ionics, and it heats the water in the tank.

i am surpried by that ( and i didnt know it )

its not the much effeciant way to do it, surely its better to just heat the water on the way to the glass

hardly green either is it ? ? ?

Oh look, another post by you with another pathetic dig at me


funny enough in your qoute of me, you cut his first post out, i wonder why ( it didnt fit in with your aims ::)

Quote
i am surpried by that ( and i didnt know it )

its not the much effeciant way to do it, surely its better to just heat the water on the way to the glass

hardly green either is it ? ? ?

Thermopure systems can do both.

As usual, quick to criticise ionics

As usual, don't have a clue what you're talking about.

you really are a pathetic person who seems to go out of his way to make posts about me

Now lets look at it Darranvps made the post that he has the system

i said " i am surpried by that ( and i didnt know it ) "

so i was going on info from a thermobore user ( of course he might not be as clued up as you  ::),  afterall you went to window cleaning school for the day  ::), so you must be a expert eh ::)

you really need to get over your problem with me, your becoming embarrassing