plumbing a coolant heater on 12-HT (1 Viewer)

TLC Norway

woodwelder
Joined
Apr 3, 2009
Messages
2,382
Location
North of Norway
seems my coolant heater isn't very effective at covecting/percolating the water through the block, only a small portion at the back of the 12ht is getting heated.
On the little 2lt engine its working fine, but its all the way down at the frame rail, on the 12ht it sits level with the oil cooler.
The heater element is from Defa 600w at 220v with thermostat.

715.jpg


I used a fitting by the oil pressure sender, at oil cooler. the heater should draw water from there, and it rises up to the very rear of the engine, t-ed into the heater hose going from the underseat heater into the top of the head, (under seat heater is swithced off) where the standing "coolant" 4 inch tall "nut" leads the water into the head.
Any better ways of hooking that up? better locations?

edit: adding that the element is type da411715, see it here:
Slangvärmare 411715 - Laitis AB
 
Joined
Apr 21, 2014
Messages
664
Location
Eastern Finland
Both of my Cruisers has a Defa 750W units plumbed similarly.
The lower hose is t-ed to a lower radiator hose and the other is t-ed to rear heater hose.
Pics will tell more than 1000 words.

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