Taylors Diesel heater question

dazautomatics

dazautomatics

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Hi Guys

Have just purchased a Taylors 79D Diesel heater and have a question over the mounting height.
Taylors specify that the flue pipe must be 1300mm min length from the top of the heater to the deck head (Flue length), have any of you guys fitted this with less pipe than this and did it work ok??

Any advice would be very much appreciated

Thanks

Darren & Vicki
 
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I have a diesel heater but not Taylor's.
Do they mean the minimum flue length rather than height to deck?
If so you could get a longer chimney to fit on the deck in order to get the right total length.
Check out Kuranda if that's the case.
 
dylan said:
I have a diesel heater but not Taylor's.
Do they mean the minimum flue length rather than height to deck?
If so you could get a longer chimney to fit on the deck in order to get the right total length.
Check out Kuranda if that's the case.
Click to expand...

Sorry

Not making myself very clear :-)

Yes I am asking if the flue length is critical.

Thanks

darren
 
Yes the flue length is critical. I've just moved mine from a position where it had too short a flue length and too little head for the supply tank. It was totally inefficient with these two defeciencies, it ran, but badly. In the new position I have 1200mm inside and a further 50mm outside. I also did away with the header tank and ran the supply from the main tank though an SU fuel pump. The difference is remarkable, lights easily, burns clean and the output is much much higher. Tip, don't buy Taylors flue pipe, it's rubbish and expensive. I got mine from guy who fabricates custom stainess exhausts systems. 50 mm O/D fits perfectly and he polished the internal section, £50 the lot. Ditto fuel pump if you go that way, breakers yard or fleabay.
 
In part, to be fair, It is the chimney that radiates much of the stoves useful heat, and in so doing of course helps draw the exhaust up through itself. So less flue, less heat output/more wasted heat ..

What they don't like on deck is an obstruction near to the flue that will cause eddies and downdrafts- eh the cockpit dodger.

For what it's worth I have 1500mm internal flue including two 45deg angles, then on deck another 1000mm which is insulated by sleeving with a 100mm dia tube, ( just like the balanced flue on a domestic boiler if youve seen one), this takes the exhaust high and clear of eddies, but for sailing I use a shorter 500mm section and sometimes(!) just plonk the cowl directly into the deckflange with no flue extension at all.

The key test us that when lit there should be mostly a column of blue flame inside the heater if it is 'drawing' correctly.

Also, the lower it is in the cabin, the warner your feet and nether regions will be, but don't forget it radiates heat in all directions. I have a driptray/ heatshield below mine as its base is a mere 150mm off the cabin sole and this is good practise when healed over sailing to contain any leaks or mishaps or so I have been told.
Enjoy!
 
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Thanks for you help guys

We fit it yesterday and managed to squeeze 1200mm on the flue, the heater is fantastic and have wanted one of these for 7 years. The flame is intermittant but due to the flue location (near the sprayhood) I think we will need to bend over and except the £100 hit for the balanced flue, such is life!

Again thanks for your help

Daz and Vic x
 
One of the reasons for the minimum flue length, I suspect, is to do with temperature where it penetrates the deck and transferance to the deck. If you have a very short flue internally the deck may get a bit hot.
 
Main reason is draw but it's a good point. I took the temperatures of my 1.2 m internal section and got 170 degs! Just above the heater 100 degs half way up and 75 degs where it exits the deckead. That was with the heater at full blast.
 
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