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Old 09-13-2016, 01:46 PM   #81
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Originally Posted by M1031A1 View Post
Justin,

I've spent the $170 to relocate my heater hose to below the floorboards and am re-routing the front heater to go straight down from the heater core to the new hose below the floor via new galvanized steel pipes. I'm connecting the under-seat heaters (2) the same way - through the floorboards - and also connecting my Webasto heater to the system in such a way as to have the option to isolate the engine when we're boon-docking, but open the system when it's cold and need to warm the engine up before starting.

I'll have that system going later this fall. Right now it's too hot to work on the electrical system during my mid-day breaks. I'll post my progress on my thread (hopefully in time to help you with your bus) as conditions allow.

M
Thats a cool idea. So you have the hoses running under the bus? I am very interested to see how that all shapes up.

It actually gave me an idea that I quickly sketched up here:



It does not solve the heater hose cost, but it does allow me to maintain access to the hoses in case they need repaired/replaced. The hoses will basically run along the metal floor in the center of the bus. I will then build the sub floor around it, with a removable board to allow access the heater hose compartment in the middle of the bus.
Maybe I am being over paranoid about the heater hose failing on me, but I can see that being a mess if its impossible to get to.
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Old 09-13-2016, 02:17 PM   #82
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I would say if I were converting fully i would definitely run the heater lines under the bus.. but insulate them... otherwise with wind whipping over them you'll lose a ton of heat.. I'd put them inside some Line-hide at least... I dont have a pic of mine where i ran my A/C ducts to the rear inside it but here is a link to biy it... it snaps together quite tight so you could conceal your heater lines in it but still take it apart to replace them..

DiversiTech 230 D3 78 Long 3 SpeediChannel Line Set Cover

-Christopher
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Old 09-14-2016, 04:09 AM   #83
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Justin,

I'm running the hose inside the frame rail under the floor boards. Pics and details coming soon.

M
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Old 09-14-2016, 11:02 AM   #84
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I wonder if there is some PEX that would withstand the high temps of coolant and would last longer than 3-4 yrs and be cheaper too. How about black iron or galvanized pipe if you plan to run inside the bus but under your finished floor.
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Old 09-14-2016, 11:41 AM   #85
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PEX for heating is max at 200 degrees so i wouldnt use it for coolant loops.. if you were to overheat your bus it could run up to 230 or higher...

theres regular copper pipe.. or perhaps flexible refrigerant copper tubing would work..

I seriously doubt that most of the rubber heater lines in these busses have been replaced every 3-4 years.. and if kept in an indoor environment where they arent open to the elements or excessive engine heat, UV, salt, Oil, etc they will last quite a bit longer than 3-4 years

-Christopher
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Old 09-14-2016, 02:09 PM   #86
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Yep, heater hoses *can* last for decades, as long as nothing is rubbing on them. If there is something rubbing on them, it might be only hours.
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Old 09-17-2016, 10:38 PM   #87
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I was able to get some of the floor up today. The metal looks like its in great shape, with only a touch of surface rust here and there. More pictures and video in a couple days. Still think its weird that they nail down the plywood.





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Old 09-17-2016, 11:12 PM   #88
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The yellow wrecking bar is at least a foot or possibly two feet
short for pulling floor nails but it can be accomplished with the
smaller tool if you hammer the nails side to side to slightly open
the floor holes before pulling the nail.
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Old 09-18-2016, 06:47 AM   #89
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check ebay for heater hose, i got 100 feet of 3/4 for 90 bucks delivered.it had 1" but with the pump its big enough. i ran my hose under also. great job on your build
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Old 09-18-2016, 07:10 AM   #90
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you want to use 1" for your main heater feed lines, then most smaller heaters that are purchased will use 5/8.. I boight some 1" to 5/8" adapters.. even with the pump you will find you need more heat than you think you do..

1" heater line is sold at almost every NAPA store.. I bought a bunch of it as I replaced alot of heater line in my bus...

-Christopher
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