Heater Questions?

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pyebibby
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Heater Questions?

Post by pyebibby »

Ive Got a Internal Heater with a Swivel knob on it, I was Wondering 1; At what point do people normally Change their Heater from Hot to cold or don't you?

Also when i turn it all the way on, there is like a seperate notch at the end of the turn. What does this do?

Thanks Chaps + Chapsess's!


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mike.perry
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Re: Heater Questions?

Post by mike.perry »

Fully anti clockwise is off, clockwise is fully on then decreasing fan speed until almost off on fully clockwise.
I only use off & full on. In hot weather the tap on the engine can be turned off so the fan blows slightly cooler air.
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pyebibby
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Re: Heater Questions?

Post by pyebibby »

And you turn it according to the weather on a day to day basis


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Neil MG
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Re: Heater Questions?

Post by Neil MG »

Yes, it's a good question!

Theoretically maybe, the tap can be opened in winter and closed in summer, but like you say it might need opening or closing for a specific journey. I tend to leave mine open and adjust the blower fan, ie turn it down and open the quarterlights if it gets too hot. My thought is that if you keep the tap closed for any length of time there is a good chance it or the heater pipes will become blocked or leak when you reopen it.
1956 Morris Minor Series II
1959 MGA 1600 Roadster
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pyebibby
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Re: Heater Questions?

Post by pyebibby »

yh quater lights are pretty brill to be honest... does it use any more fuel having heater on?


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ASL642
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Re: Heater Questions?

Post by ASL642 »

No.

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d_harris
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Re: Heater Questions?

Post by d_harris »

I tend to leave my heater permanently on, and open the windows if need be.

The heater tap seems to not do a lot anyway :roll:

chickenjohn
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Re: Heater Questions?

Post by chickenjohn »

d_harris wrote:I tend to leave my heater permanently on, and open the windows if need be.

The heater tap seems to not do a lot anyway :roll:
You probably need a new one then! The valve does wear out after many years.
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Re: Heater Questions?

Post by bmcecosse »

Running the heater fan does put some load on the dynamo and therefore on the engine - so a small increase in fuel consumption. But it costs nothing just to let the fresh air blow through. Of course - opening the quarter lights increases drag = more fuel used. So only open them when going downhill - in neutral with the engine switched off.......
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d_harris
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Re: Heater Questions?

Post by d_harris »

chickenjohn wrote:
d_harris wrote:I tend to leave my heater permanently on, and open the windows if need be.

The heater tap seems to not do a lot anyway :roll:
You probably need a new one then! The valve does wear out after many years.
Why do I "need" one? I'm quite content to leave the heater on!

mike.perry
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Re: Heater Questions?

Post by mike.perry »

Removing the wing mirrors would compensate for the extra fuel used by the heater fan :roll:
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pyebibby
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Re: Heater Questions?

Post by pyebibby »

mike.perry wrote:Removing the wing mirrors would compensate for the extra fuel used by the heater fan :roll:
Would be as useful in my spares box as on my wings...


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santadawes
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Re: Heater Questions?

Post by santadawes »

Not to mention my Police Light Box complete with blue beacon.... :roll:

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