Dual or upgraded heaters? - Defender Source
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  #1  
Old April 29th, 2014, 12:22 AM
akdefender
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james
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Dual or upgraded heaters?

Seeing as I am in the defender buying market. I've heard that in cold climates they like to stay cold inside. Is there any upgrades that can be made to the heating unit? Or possibly wire in a second unit to run at the same time as the original one?
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  #2  
Old April 29th, 2014, 12:28 AM
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Jason Lavender
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Some of the Canadian market NAS trucks had an aux heater under the passenger seat. Or if you're going ROW/import trucks, anything running diesel you can add a Webasto to.

That said, there's also the blower motor upgrade and bulkhead cutout mods that you can do which do help as well (search the tech section and you'll find it).
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  #3  
Old April 29th, 2014, 12:33 AM
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I added a barrier blocking off the load space and that helped quite a bit. I also did some stick on foam rubber seals to the doors to help stop air leaks. This summer I'll do the bulkhead mod and possibly add a aux heater from a conversion van to help.

The heater puts out plenty of heat just way to little air flow.
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  #4  
Old April 29th, 2014, 12:47 AM
akdefender
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Quote:
Originally Posted by ArmyRover View Post
I added a barrier blocking off the load space and that helped quite a bit. I also did some stick on foam rubber seals to the doors to help stop air leaks. This summer I'll do the bulkhead mod and possibly add a aux heater from a conversion van to help.

The heater puts out plenty of heat just way to little air flow.

What is the bulk head mod? I have not heard of that one yet
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  #5  
Old April 29th, 2014, 12:54 AM
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Quote:
Originally Posted by akdefender View Post
What is the bulk head mod? I have not heard of that one yet
Some light reading
http://www.defendersource.com/forum/...t=blower+motor

Also, Tom's drop-curtains are the bomb and will also help keep the heat in:
http://www.defendersource.com/forum/...t=drop+curtain
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  #6  
Old April 29th, 2014, 12:58 AM
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Quote:
Originally Posted by ArmyRover View Post
I added a barrier blocking off the load space and that helped quite a bit. I also did some stick on foam rubber seals to the doors to help stop air leaks. This summer I'll do the bulkhead mod and possibly add a aux heater from a conversion van to help.

The heater puts out plenty of heat just way to little air flow.
Don't be upset when you remove the heater to find that you can not increase to hole size, seems that early lower dashes (some???) can not be done.
At least for me I found this out before getting the B/H galvanized, I did cut mine but welded the cut piece back in
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  #7  
Old April 29th, 2014, 10:25 AM
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Well that sucks guess aux heater it is lol

My curtain is similiar to Tom's setup but I got it for free it's from a Hummer that was getting a new soft top kit.
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  #8  
Old April 29th, 2014, 10:32 AM
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I have a 10 kW heater in mine that replaced the stock one. It is at least 3 times the output of the stock one. I've never needed to turn it on full speed in the 90, even at -30.

http://www.red90.ca/photos/land-rovers/Heater

Around $200. Adding a second heater also works well. This can be a coolant one or a diesel fired one.

One of the biggest things is making sure the truck is very well insulated and draft proof. I'm running 1" of insulation for the majority of mine.
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  #9  
Old April 29th, 2014, 11:44 AM
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I think if you removed the wiper motor Dash cover yiou should be able to see if you can opine up the heater hole.

A faint heart never f&&&ed a pig
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Edward Teach is the Blackbeard, and is a member of the Birmabright Brotherhood.

Still looking for that place where I can carry a paddle and get asked what's that.

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  #10  
Old April 29th, 2014, 11:47 AM
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Quote:
Originally Posted by roverman2010 View Post
Don't be upset when you remove the heater to find that you can not increase to hole size, seems that early lower dashes (some???) can not be done.
At least for me I found this out before getting the B/H galvanized, I did cut mine but welded the cut piece back in
That is a RHD problem. LHD, there is a lot of space available.
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  #11  
Old April 29th, 2014, 11:55 AM
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Quote:
Originally Posted by Red90 View Post
That is a RHD problem. LHD, there is a lot of space available.
Never thonk of that
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Edward Teach is the Blackbeard, and is a member of the Birmabright Brotherhood.

Still looking for that place where I can carry a paddle and get asked what's that.

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FC101 GS FFR
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85 LR90
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  #12  
Old April 29th, 2014, 12:04 PM
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The left side of the heater plenum ends short because of the wiper motor. The right side goes all the way to the end on LHD dashes.
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  #13  
Old April 29th, 2014, 12:52 PM
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I had the same problem on my rhd truck.

in my 200tdi, the biggest impediment to heat is holes/drafts. Cold air comes in through many places on the bulkhead, and leave many places near the doors, nullifying the heat from my heater
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  #14  
Old April 29th, 2014, 09:00 PM
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The thing that made the biggest difference in my 110 was replacing the main door seals and also installing 2011MY+ lower door seals.
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  #15  
Old May 1st, 2014, 01:30 PM
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Seat heaters and the opening of the vents up do wonders. Also in a 90 i would add Door seals and new cowl seals as well a curtian maybe needed as well to keep the heat up front. Insulation as well with the exmoor matting system helps out a good bit for me also.
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