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Tractor cab heater
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iowallis View Drop Down
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Joined: 04 Jun 2017
Location: North Iowa
Points: 397 		Post Options Post Options   Thanks (0) Thanks(0)   Quote iowallis Quote  Post ReplyReply Direct Link To This Post Topic: Tractor cab heater
    Posted: 23 Sep 2026 at 8:22am
I have a MF 1140 compact tractor with a cab and a loader.

The factory heater quit working and the cab manufacture, Curtis, has not responded to any inquires I have about parts, so replacing the whole heater unit.

Question- Does it make any difference which hose, inlet or outlet, that the water shut off valve is located in? Currently on the inlet side, but with the new heater it will be much more convenient to access it on the outlet side. Would like to keep the valve to shut off the flow as it already gets toasty in the cab during the summer.
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DanWi View Drop Down
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Joined: 18 Sep 2009
Location: wttn
Points: 2149 		Post Options Post Options   Thanks (1) Thanks(1)   Quote DanWi Quote  Post ReplyReply Direct Link To This Post Posted: 23 Sep 2026 at 5:22pm
I would think shutting the outlet off would allow just a little more heat make its way up to the heater unit.
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Les Kerf View Drop Down
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Joined: 08 May 2020
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Points: 1901 		Post Options Post Options   Thanks (1) Thanks(1)   Quote Les Kerf Quote  Post ReplyReply Direct Link To This Post Posted: 23 Sep 2026 at 8:11pm
With no flow it won't allow a huge amount of heat through, I would try the more convenient method and see if it works well enough.
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SteveM C/IL View Drop Down
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Joined: 12 Sep 2009
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Points: 9209 		Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: 1 hour 55 minutes ago at 6:56pm
1/4 turn valves on both where connected to block
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Coke-in-MN View Drop Down
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Joined: 12 Sep 2009
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Points: 42480 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Coke-in-MN Quote  Post ReplyReply Direct Link To This Post Posted: 1 hour 38 minutes ago at 7:13pm
Either one will stop flow - the residual heat travel should be nil and either way if no flow enters core 
Life lesson: If you’re being chased by a lion, you’re on a horse, to the left of you is a giraffe and on the right is a unicorn, what do you do? You stop drinking and get off the carousel.
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