De-mister Heater Matrix

[Greg2]

Yes you're quite correct, but don't worry all is not lost!

If you remove the thermostat(s) from the engine and take one into a (decent) local motor factors, you are very likely to be able to find an identical 'stat with a higher operating temp, say 88 or 90 degrees.

That's exactly what I did, after I fitted a webasto madera 8kw matrix to my boat.
Finding it only blew luke warm I remembered what a huge difference fitting an 88deg thermostat made to the heater output of a Mini compared to a summer stat of 82.

I managed to find a 90 deg stat for the boat at very affordable cost, and it improved the heat output considerably.
Remember, it does then leave less margin for engine overheat, so I also have exhaust temp readouts fitted to aid early warning of any problems.

Try this before giving up!

Very interesting. I would never have thought of this an an option to be perfectly honest. I assume that there aren't any issues with an engine expected to run at 80 running at 90?

 

[LittleShip]

Very interesting. I would never have thought of this an an option to be perfectly honest. I assume that there aren't any issues with an engine expected to run at 80 running at 90?

There should be no problem running your engine slightly hotter than stated, in fact you may find it to be a little more efficient.

That said, as already stated your are closer to the boiling point and probable damage if you should have a overheat problem.

I had an 88 degree stat in Little Ship with no problems at all. After a stat problem this year I fitted what was recommended and she now runs cooler than before..... I will go back to the 88 when I have got nothing lease to play with.

Tom

Ps. Get the stat with a bleed hole in it, if you can't drill a small hole in the stat to allow a little water to pass through.

 

[Greg2]

There should be no problem running your engine slightly hotter than stated, in fact you may find it to be a little more efficient.

That said, as already stated your are closer to the boiling point and probable damage if you should have a overheat problem.

I had an 88 degree stat in Little Ship with no problems at all. After a stat problem this year I fitted what was recommended and she now runs cooler than before..... I will go back to the 88 when I have got nothing lease to play with.

Tom

Ps. Get the stat with a bleed hole in it, if you can't drill a small hole in the stat to allow a little water to pass through.

Thanks, very helpful. Must admit I was thinking it would be okay as these are the coolest running engines we have had in a boat (fourth boat) and I know of boats that run consistently at 90.