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Martin Rice (Sparkymart) - Cornwall AO

Isolating heater

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Martin Rice (Sparkymart) - Cornwall AO

I'm looking at putting a heater control valve in the car to cut the hot water into the heater 

The question is do I need a valve with a bypass or will a standard on/off  valve do?

It going into a zetec with the recommended over cooling plumbing 

Cheers

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Oily Steve

Martin, mine is a duratec and I have recently fitted a bypass heater valve.

I didn't like the idea of completely blocking off coolant flow from the engine into the thermostat, which is always flowing regardless of thermostat opening, so I went for the bypass option.

 

I assume the plumbing might be similar between zetec and duratec but others may be able to confirm.

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Four Greens

I fitted this bypass valve, from a land rover I believe to my 2.0 Ltr Zetec to control the heater matrix temperature. The control is a cut to length choke cable controlling how much hot water is allowed into the heater. For the cooling system to work correctly coolant flow must be maintained through these pipes so a cut off valve is not suitable. I used the original rubber hoses cut appropriately. 

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Martin Rice (Sparkymart) - Cornwall AO

Thanks guys that's exactly what I needed to know 👍

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Oily Steve
1 hour ago, Greenstreak-Andy D said:

I was looking to do the same, after our trip to Austria in the recent heat wave!!

Hope this option would keep me a tad cooler!

 

Looking at this one...

https://www.t7design.co.uk/tx2-heater-bypass-valve-16mm-5-8-pull-to-bypass.html

Andy

 

Andy, that’s the one I have recently fitted

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Steve (stevel) - Lancashire AO

Fitted a Ford Fiesta bypass valve with a on off switch on dash, been on car about 5 years ago and still going strong.

Steve

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Martin Rice (Sparkymart) - Cornwall AO

Got one on order from T7   I might try and rig an RC servo to drive it using a small pot . As I want to install a better heater over the winter , been wanting to do it now for a couple of years but haven't had the time yet 

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