heater hose for water heater

LQQKatJon

Well-known member
Oct 22, 2010
3,204
516
113
St. Cloud, Mn
lqqkatjon.blogspot.com
I am in process of putting together a 76-78 original water heater into my 75. my square atwood failed a few years ago, and I went and installed an
on-demand behind the fridge. Even though that has worked, it has some issues that I am not happy with. I have an issue with the quick burst of cold
water when shutting on and off shower, and it needs a little more flow to kick in, so family tends to use more water then needed. it is also out
in the elements behind the fridge for below freezing use. So I sourced a used water heater, and now I picked up a stainless tank, so I have
everything swapped over and pretty much ready to install. (springtime project as coach is in storage).

so I am going to replace all the heater hoses, and I was wondering if there is a brand or part# that people have used and are happy with. I know it
is 5/8" heater hose, and I see I can get 50' roll of the stuff pretty easy. but is there a brand that is tougher/more quality? I have bought some
heater hose at store sometimes, and some folds over when you try to bend it, other stuff is more solid. I also would guess I need to be careful
on OD as it still has to go through those holes in the body to get from under the coach up into the bathroom.

I see someone mentioning silicone hose, but I always worry about that too, because I have seen some really cheap silicone hoses too. so hard to
tell what to buy.

I am looking at gates, as that is what I would think is the name brand hose?? Gates 28401 Heater Hose...

also length, I would guess a person needs about 50' right?

--
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
 
Jon,

I replaced mine about 10 or 11 years ago (it's probably time to do it again) and used the better part of a 50' roll of whatever brand the premium auto
parts store sold me. I think it might have been Goodyear, Gates, or maybe Dayco. Anyway, it has lasted and I have had zero problems with it.

If you have a good parts house that you deal with, I would trust their recommendation.
--
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles,
Solar battery charging. GMCSJ and GMCMI member
 
I am fully behind using silicone hoses to replace all heater hoses. After having the original rubber oil fill hose fail multiple times until a
silicone replacement became available, I am a firm believer of the cost benefits of using all silicone hoses (Heater, vacuum, etc.) in our hot engine
compartments. I have had no failures since going this route and no regrets regarding the cost and the elimination of the nuisance in changing the
rubber hoses so frequently. I did buy high quality silicone hoses though. They were remnant cut offs from an industrial installation that I found on
ebay.
 
No silicone for me. Extremely poor tear resistance and require special clamps to not start the tear process. The oil fill is a different story as oil
and fumes attack the rubber. Many coaches have never had the long hoses to the rear replaced. Not a good idea, but a testimony.
--
John Lebetski
Woodstock, IL
77 Eleganza II
 
I didn't know special T-bolt clamps were indicated for silicone hoses. I have used standard worm drive SS clamps with no failures with over 10yrs of
use and over 60,000 miles with my silicone hoses. My rubber heater hoses inevitably failed after an average of 3-5yrs. In fact, the GMC shop manual
recommends replacing them yearly presumably because of their short life expectancy. However, the quality of rubber hoses might have improved since
these '73 to '78 recommendations were made. I didn't find that to be the case up until 10 years ago when I changed to silicone.
 
The police package Caprice cars included silicone hoses, but special clamps. Less likely to burst during pursuit as less aging issues.
--
John Lebetski
Woodstock, IL
77 Eleganza II
 
You want the electro-chemical resistant lined hose. Once coolant penetrates the inner layer it degrades the cord layer and will visibly wick out the
cord ends. It’s then past due for replacement. .
--
John Lebetski
Woodstock, IL
77 Eleganza II
 
I have had great luck with Gates green strip hose. I little more money but I have some that's 20 years old and still going strong. I'm not much on the
silicone for a number of reasons; special clamps, and permeability being among them, not to mention the cost. Even with the correct clamps they seem
to need attention occasionally. Just my way of thinking, Hal
--
"I enjoy talking to you. Your mind appeals to me. It resembles my own mind, except you happen to be insane."

1977 Royale 101348,

1977 Royale 101586, Diesel powered,

1974 Eagle Bus 45',w/slideout,

Rio Rancho, NM
 
Your wasting money on the exotic hose unless your going to use it for 40
years,
A good brand is more than you need.
ALso keep in mind NOT to pull the old hose out as you'll have a time puttin
in the new.
Connect the new to the old with good duct tape and pull the new through.

On Thu, Dec 31, 2020 at 11:31 AM Hal StClair via Gmclist <

> I have had great luck with Gates green strip hose. I little more money but
> I have some that's 20 years old and still going strong. I'm not much on the
> silicone for a number of reasons; special clamps, and permeability being
> among them, not to mention the cost. Even with the correct clamps they seem
> to need attention occasionally. Just my way of thinking, Hal
> --
> "I enjoy talking to you. Your mind appeals to me. It resembles my own
> mind, except you happen to be insane."
>
> 1977 Royale 101348,
>
> 1977 Royale 101586, Diesel powered,
>
>
>
> 1974 Eagle Bus 45',w/slideout,
>
> Rio Rancho, NM
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.gmcrvparts.com
1-800-752-7502
 
I drilled holes about 1/2 from the end of the end and also in the new hose. I used a loop of wire to connect the hoses together and pulled from the top. Worked well.

Emery Stora
77 Kingsley
Frederick, CO

>
> Your wasting money on the exotic hose unless your going to use it for 40
> years,
> A good brand is more than you need.
> ALso keep in mind NOT to pull the old hose out as you'll have a time puttin
> in the new.
> Connect the new to the old with good duct tape and pull the new through.
>
>> On Thu, Dec 31, 2020 at 11:31 AM Hal StClair via Gmclist <

>>
>> I have had great luck with Gates green strip hose. I little more money but
>> I have some that's 20 years old and still going strong. I'm not much on the
>> silicone for a number of reasons; special clamps, and permeability being
>> among them, not to mention the cost. Even with the correct clamps they seem
>> to need attention occasionally. Just my way of thinking, Hal
>> --
>> "I enjoy talking to you. Your mind appeals to me. It resembles my own
>> mind, except you happen to be insane."
>>
>> 1977 Royale 101348,
>>
>> 1977 Royale 101586, Diesel powered,
>>
>>
>>
>> 1974 Eagle Bus 45',w/slideout,
>>
>> Rio Rancho, NM
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>
>
> --
> Jim Kanomata
> Applied/GMC, Newark,CA
> jimk
> http://www.gmcrvparts.com
> 1-800-752-7502
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
Sir, All Big trucks come with silicone hose from factory and is warrantied for 750,000 miles. I get it from EBay in 50’ coil and the special
stainless clamps that have the inside collar that covers the gear holes I get from A-Z supply. You do need to pay attention to where the hose goes in
the floor especially in the 73 & 74s. They have been known to have medal S s thru the floor and will not pull thru. It is inside the wall and really
isn’t real hard to unscrew the wall and pry it out enough to get. New hoses clamped on. Sit on the floor and push wall back in with your feet or
porta power and replace screws. I have used this procedure on a few walls between door and fridge that didn’t fit so good.

> I am in process of putting together a 76-78 original water heater into my 75. my square atwood failed a few years ago, and I went and installed
> an on-demand behind the fridge. Even though that has worked, it has some issues that I am not happy with. I have an issue with the quick burst of
> cold water when shutting on and off shower, and it needs a little more flow to kick in, so family tends to use more water then needed. it is
> also out in the elements behind the fridge for below freezing use. So I sourced a used water heater, and now I picked up a stainless tank, so I
> have everything swapped over and pretty much ready to install. (springtime project as coach is in storage).
>
> so I am going to replace all the heater hoses, and I was wondering if there is a brand or part# that people have used and are happy with. I
> know it is 5/8" heater hose, and I see I can get 50' roll of the stuff pretty easy. but is there a brand that is tougher/more quality? I have
> bought some heater hose at store sometimes, and some folds over when you try to bend it, other stuff is more solid. I also would guess I need
> to be careful on OD as it still has to go through those holes in the body to get from under the coach up into the bathroom.
>
> I see someone mentioning silicone hose, but I always worry about that too, because I have seen some really cheap silicone hoses too. so hard to
> tell what to buy.
>
> I am looking at gates, as that is what I would think is the name brand hose?? Gates 28401 Heater Hose...
>
> also length, I would guess a person needs about 50' right?

--
C. Boyd
76 Crestmont
East Tennessee