[P @ F]

This is the vid for the exchanger clean , not sure i would use the acid he is but he does mention that specific acids are out there to get it done safe

https://www.youtube.com/watch?v=3ljHwrbQQE4

[P @ F]

This one shows how coked up they can get after little use
About 6 minutes onwards is what you want to see

https://www.youtube.com/watch?v=6wrfEuQKBIM

[NWH]

When mine is under heater load it’s reading 12-9 because there healthy batteries,if it’s starts off at 12-5 then the heater kicks in it will drop down from that quickly if there only half charged.
Mine also will go up to 14-00 v more often than not but as I said 1 battery is not enough for a diesel heater you’ll drain it quickly. My bet is on the plates for the lack of heat your getting I reckon you change the plate you’ll get more heat, I did.

[dazmond]

im surprised that you didnt get 2 x105ah numax batteries fitted to run the grippa heater matt....i have the smart split charge relay AND charge my 2 batteries up overnight every night to keep the batteries in good nick......

mine read 12.6 AT THE END OF THE DAY (once ive turned my heater off and the batteries are not under load)with my van engine off and this is when ive been parked up for hours......

under load(at the end of the day) they can read 12.4 or even 12.3 if im reeling in at the same time as turning off the heater.....

with engine running my batteries will be reading between 13.7-14.1......

[NWH]

At 12-3 12-5 they need a blast from the mains,I plugged the van in at the weekend it was still good before but just to be safe I charged them,pulling up at every job this week with the van off it’s been reading 13-1 13-4 then dropping to no less than 12-9 under load from the heater.

[P @ F]

At 12-3 12-5 they need a blast from the mains,I plugged the van in at the weekend it was still good before but just to be safe I charged them,pulling up at every job this week with the van off it’s been reading 13-1 13-4 then dropping to no less than 12-9 under load from the heater.

You sure you got a 9kw not a 5kw 
Supersonic heat and supersonic batteries all in one van 

[Slacky]

Ive just bought a 110amp battery from Halfords. Fitted it in the car-park, alongside (in line) the existing battery.

So, its a 5 minute drive back from Halfords to my place and Id say the temp was markedly improved on the circulating water by the time I got back here. I suspect the original battery therefore isn't holding its charge, so probs time to change that one and have two brand new 110 amp units.

[P @ F]

Yay for Slacky 
Definately the best time to get another exact same battery , as the old one will pull the new one down .

[NWH]

When you install 2 batteries inline together they should both be brand new.

[Slacky]

This time tomorrow they will.

[dazmond]

Ive just bought a 110amp battery from Halfords. Fitted it in the car-park, alongside (in line) the existing battery.

So, its a 5 minute drive back from Halfords to my place and Id say the temp was markedly improved on the circulating water by the time I got back here. I suspect the original battery therefore isn't holding its charge, so probs time to change that one and have two brand new 110 amp units.

yep thatll do it matt....you should be fine for a few years now....even if you do a lot of driving with a split charge relay you should still bench charge once a week just to keep the batteries topped up,i charge mine every night due to very little mileage during my working day....

[dazmond]

just as a matter of interest nigel/jonny.what is your temperature probe reading after 30 mins of recirculating back to the tank?im getting anywhere between 43c-51c even with a full 500L tank(depending on outside temp)

[Jonny 87]

just as a matter of interest nigel/jonny.what is your temperature probe reading after 30 mins of recirculating back to the tank?im getting anywhere between 43c-51c even with a full 500L tank(depending on outside temp)

That’s a lot hotter than mine mate.

I’m Running mine constantly back to the tank, and after 30 mins it will mayb go up to 25 degrees. It takes 3 or 4 hours to get to 50 degrees.

That doesn’t sound right to me. No way In 30 minutes could it heat up your tank to 40 degrees.

That would mean you could Stick your heating on for an hour in the morning and have a tank full of 50-60 degree water.

[P @ F]

Daz , where is this probe positioned ?

[dazmond]

just as a matter of interest nigel/jonny.what is your temperature probe reading after 30 mins of recirculating back to the tank?im getting anywhere between 43c-51c even with a full 500L tank(depending on outside temp)

That’s a lot hotter than mine mate.

I’m Running mine constantly back to the tank, and after 30 mins it will mayb go up to 25 degrees. It takes 3 or 4 hours to get to 50 degrees.

That doesn’t sound right to me. No way In 30 minutes could it heat up your tank to 40 degrees.

That would mean you could Stick your heating on for an hour in the morning and have a tank full of 50-60 degree water.

you ve got a 650 though mate.it probably takes longer......

first thing in the morning i turn my heater on and it might read say 7c on my temp gauge,by the time i get to work in 15 mins its reading 35c.....after lunch its 45c-51c!tank is warm to the touch and theres steam rising from the lid if i unscrew it....

[dazmond]

by lunchtime ive usually only got 250L left so that will make the temperature higher.....

[P @ F]

So where is this probe positioned within the system , and i assume its water temp and not the coolant ?

[dazmond]

Daz , where is this probe positioned ?

no idea rich!i didnt fit the heater!

[dazmond]

So where is this probe positioned within the system , and i assume its water temp and not the coolant ?

oliver said its a water temp probe for the frost stat....(so when it reads 2c it kicks into  life for 10 mins until it reaches 7c then turns itself off)

[֍Winp®oClean֍]

Bloody Norah,  it's complicated stuff this diesel heater malarky!!

It would be cheaper and less hassle to fill up from a hot tap!