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Atwood Heat Exchanger Capacity [message #313063]

Sun, 12 February 2017 13:05

misnomer

Messages: 40
Registered: April 2015
Location: Reno

Karma: 1

Member

I've been searching and searching and can't find anything indicating the heating capacity (BTUs or whatever) of the heat exchanger in any of these tanks (Atwood, OEM, or the replacements at Applied).

Does anybody know a rough order of magnitude capacity on these exchangers? Or how long it takes to heat a tank of water with engine heat?

77 Birchaven 23 w/ 455 Reno, NV

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Re: Atwood Heat Exchanger Capacity [message #313065 is a reply to message #313063]

Sun, 12 February 2017 13:42

wally

Messages: 643
Registered: August 2004
Location: Omaha Nebraska

Karma: 5

Senior Member

misnomer wrote on Sun, 12 February 2017 13:05

I've been searching and searching and can't find anything indicating the heating capacity (BTUs or whatever) of the heat exchanger in any of these tanks (Atwood, OEM, or the replacements at Applied).

Does anybody know a rough order of magnitude capacity on these exchangers? Or how long it takes to heat a tank of water with engine heat?

15 or 20 minutes driving heats ours

Wally Anderson
Omaha NE
75 Glenbrook

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Re: [GMCnet] Atwood Heat Exchanger Capacity [message #313066 is a reply to message #313063]

Sun, 12 February 2017 13:48

jimk

Messages: 6734
Registered: July 2006
Location: Belmont, CA

Karma: 9

Senior Member

I'll see if it in the manufactures info

Sent from my iPhone

> On Feb 12, 2017, at 11:05 AM, John Yurtinus wrote:
>
> I've been searching and searching and can't find anything indicating the heating capacity (BTUs or whatever) of the heat exchanger in any of these
> tanks (Atwood, OEM, or the replacements at Applied).
>
> Does anybody know a rough order of magnitude capacity on these exchangers? Or how long it takes to heat a tank of water with engine heat?
> --
> 77 Birchaven 23 w/ 455
> Reno, NV
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502

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Re: [GMCnet] Atwood Heat Exchanger Capacity [message #313069 is a reply to message #313063]

Sun, 12 February 2017 14:36

jimk

Messages: 6734
Registered: July 2006
Location: Belmont, CA

Karma: 9

Senior Member

Your 6 gal Atwood is 8,800 BTU

Sent from my iPhone

> On Feb 12, 2017, at 11:05 AM, John Yurtinus wrote:
>
> I've been searching and searching and can't find anything indicating the heating capacity (BTUs or whatever) of the heat exchanger in any of these
> tanks (Atwood, OEM, or the replacements at Applied).
>
> Does anybody know a rough order of magnitude capacity on these exchangers? Or how long it takes to heat a tank of water with engine heat?
> --
> 77 Birchaven 23 w/ 455
> Reno, NV
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

_______________________________________________
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502

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Re: [GMCnet] Atwood Heat Exchanger Capacity [message #313075 is a reply to message #313069]

Sun, 12 February 2017 16:11

misnomer

Messages: 40
Registered: April 2015
Location: Reno

Karma: 1

Member

It's 8800 BTU/hr from the propane burner, I'm trying to figure what the engine heat exchanger does. If it's 15 to 20 minutes, that's a bit faster than the propane burner - maybe safe to say somewhere north of 10kbtu/hr but not 20k.

So to come clean on my ulterior motive behind this question, I'm contemplating if it's feasible to use an RV water heater to drive a hydronic heating system. There are systems from Ardi and others that couple a giant boiler with a smaller hot water tank, but they cost an arm and six legs. It sounds like the exchanger in the cheaper RV/Marine heaters can pull enough heat from the tank, though the burner in the heater wouldn't be able to keep up, and I suspect it'd struggle with the high duty cycle.

77 Birchaven 23 w/ 455 Reno, NV

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Re: Atwood Heat Exchanger Capacity [message #313080 is a reply to message #313063]

Sun, 12 February 2017 17:32

jhbridges

Messages: 8412
Registered: May 2011
Location: Braselton ga

Karma: -74

Senior Member

I don't like the hydronic setup = there isn't any place you can stand in a blast of hot air when you come in from the cold.

--johnny

Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons. Braselton, Ga. I forgive them all, save those who hurt the dogs. They must answer to me in hell

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Re: [GMCnet] Atwood Heat Exchanger Capacity [message #313082 is a reply to message #313080]

Sun, 12 February 2017 17:51

Ken Henderson

Messages: 8726
Registered: March 2004
Location: Americus, GA

Karma: 9

Senior Member

Johnny,

Sound like you, like me, grew up backing up to an open fireplace! :-)

Ken H.

On Sun, Feb 12, 2017 at 6:32 PM, Johnny Bridges via Gmclist <
gmclist@list.gmcnet.org> wrote:

> I don't like the hydronic setup = there isn't any place you can stand in a
> blast of hot air when you come in from the cold.
>
> --johnny
> --
> '76 23' transmode Norris upfit, 76 26' Eleganza(?) with beaucoup mods and
> add - ons.
> Braselton, Ga.
> "The road goes on forever, and the party never ends" --Robert Earl Keen
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach

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Re: [GMCnet] Atwood Heat Exchanger Capacity [message #313091 is a reply to message #313082]

Sun, 12 February 2017 20:00

misnomer

Messages: 40
Registered: April 2015
Location: Reno

Karma: 1

Member

Hah! I'm the opposite - I hate how a forced air furnace dries everything out.

77 Birchaven 23 w/ 455 Reno, NV

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Re: Atwood Heat Exchanger Capacity [message #313094 is a reply to message #313063]

Sun, 12 February 2017 21:24

JohnL455

Messages: 4447
Registered: October 2006
Location: Woodstock, IL

Karma: 12

Senior Member

How fast does the waterheater get hot?? Depends on how agressive your right foot is.

John Lebetski
Woodstock, IL
77 Eleganza II

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Re: Atwood Heat Exchanger Capacity [message #313108 is a reply to message #313063]

Mon, 13 February 2017 07:42

jhbridges

Messages: 8412
Registered: May 2011
Location: Braselton ga

Karma: -74

Senior Member

I keep forgetting Ken H's replies show as mail as well as here - and get answered as mail Smile

We were uptown - we had a fireplace and a floor furnace. Stand on the grate in the morning to dress.

--johnny

Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons. Braselton, Ga. I forgive them all, save those who hurt the dogs. They must answer to me in hell

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