Tankless hot water heater

[peer oliver schmidt]

Hal StClair schrieb/wrote
> Oliver, how many BTU's is that unit? You have room for it up front under the hatch? Shift the batteries to the drivers side I'd guess?

It is a 5kW unit, whatever that is in BTU.

I just looked at the heater. It is soo small, that it will be mounted at
the back of the step to the cockpit.

--
Best regards

Peer Oliver Schmidt
PGP Key ID: 0x83E1C2EA

'76a Eleganza II 26', VA
'73 Sequoia 23', Germany, SH

 

[emerystora]

That is about 17000 btu.

Emery Stora

>
> Hal StClair schrieb/wrote
>> Oliver, how many BTU's is that unit? You have room for it up front under the hatch? Shift the batteries to the drivers side I'd guess?
>
> It is a 5kW unit, whatever that is in BTU.
>
> I just looked at the heater. It is soo small, that it will be mounted at
> the back of the step to the cockpit.
>
> --
> Best regards
>
> Peer Oliver Schmidt
> PGP Key ID: 0x83E1C2EA
>
> '76a Eleganza II 26', VA
> '73 Sequoia 23', Germany, SH
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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[peer oliver schmidt]

Emery Stora schrieb/wrote
> That is about 17000 btu.

Is that considered good enough for a 23' in an area that is temperature
wise comparable to say Seattle?

--
Best regards

Peer Oliver Schmidt
PGP Key ID: 0x83E1C2EA

'76a Eleganza II 26', VA
'73 Sequoia 23', Germany, SH

 

[78gmcroyale]

We live in Wisconsin and have camped in Northern Wisconsin when there's been snow on the ground and outside temps of 25. Our Aqua 6L worked fine.

And although it's right next to the refrigerator side wall exterior vent, there's enough interior coach heat in that area to prevent any chance of
freezing.

 

[hal stclair]

> We live in Wisconsin and have camped in Northern Wisconsin when there's been snow on the ground and outside temps of 25. Our Aqua 6L worked
> fine.
>
> And although it's right next to the refrigerator side wall exterior vent, there's enough interior coach heat in that area to prevent any chance of
> freezing.
>
> https://aquahstore.com/catalog/

There seems to be a misunderstanding here on the heaters.
Oliver is discussing a gas fired boiler to heat water with a hydronic system to heat the coach. The tank less heaters being discussed pertain to
domestic water heating.
The 17,000 BTU will 'probably' work but it will be marginal with the original insulation I'd guess. Didn't the coach come with a 24 or 30,000 BTU
heater from the factory?
Hal
--
1977 Royale 101348,

1977 Royale 101586, Diesel powered,

1975 Eleganza II, 101230,

1974 Eagle Bus 45',w/slideout,

Rio Rancho, NM

 

[RJW]

> On the standard GMC layouts, there's plenty of room behind the refrigerator for it and then there is the roof vent for the water heater venting.
> Our model 6L is approx. 40,000 btu.

Ray,

I used your setup as a guide when I decided to install a tankless water heater about 7 years ago. I had to modify your approach since you, as I
recall, don't have a standard GMC layout.

I wanted to keep the original (actually had upgraded it to stainless steel a few years earlier) water heater with electric and the engine coolant
loop. I wanted to be able to use the OEM when plugged in and the tankless when dry camping.

I plumbed it so that I could isolate the tankless heater from the plumbing when in potentially freezing weather (i.e. winterize it separate) on the
way to or on the way back from warmer weather. We seldom dry camp in freezing weather.

The tankless water heater is installed behind my 3-way gas reefer.

I am very happy with having a tankless water heater.

I did a presentation at the Goshen 2011 GMCMI rally about my install and have included a link here to that presentation. It is a long presentation (70
slides) and I go into detail about what I did.

http://www.palmbeachgmc.com/PDF/tankless-heater.pdf

The only downside to my current setup is that the water temperature can fluctuate during "navy showers". Happens when the water is shut off to soap
up, and then turned back on to rinse. At that time you can get hit with a shot of cold water which is annoying if you don't know its coming. I plan
on adding a mixing valve to modulate the temperature if I ever get around to it.

--
Richard
76 Palm Beach
SE Michigan
www.PalmBeachGMC.com


Coop Roller Cam 455, Howell TBI + EBL, 3.42 FD, Quadra Bag, Macerator, Manny Tranny etc.

 

[RJW]

> bdub attached the link to my tankless water heater installation. This is by far one of the best upgrades we've made to our coach.

I posted this elsewhere. Re-posted it on this thread in case it was missed on the other thread.

Ray,

I used your setup as a guide when I decided to install a tankless water heater about 7 years ago. I had to modify your approach since you, as I
recall, don't have a standard GMC layout.

I wanted to keep the original (actually had upgraded it to stainless steel a few years earlier) water heater with electric and the engine coolant
loop. I wanted to be able to use the OEM when plugged in and the tankless when dry camping.

I plumbed it so that I could isolate the tankless heater from the plumbing when in potentially freezing weather (i.e. winterize it separate) on the
way to or on the way back from warmer weather. We seldom dry camp in freezing weather.

The tankless water heater is installed behind my 3-way gas reefer.

I am very happy with having a tankless water heater.

I did a presentation at the Goshen 2011 GMCMI rally about my install and have included a link here to that presentation. It is a long presentation (70
slides) and I go into detail about what I did.

http://www.palmbeachgmc.com/PDF/tankless-heater.pdf

The only downside to my current setup is that the water temperature can fluctuate during "navy showers". Happens when the water is shut off to soap
up, and then turned back on to rinse. At that time you can get hit with a shot of cold water which is annoying if you don't know its coming. I plan on
adding a mixing valve to modulate the temperature if I ever get around to it.

--
Richard
76 Palm Beach
SE Michigan
www.PalmBeachGMC.com


Coop Roller Cam 455, Howell TBI + EBL, 3.42 FD, Quadra Bag, Macerator, Manny Tranny etc.

 

[dutch marc]

> install cut-off valves in both lines and turn them off.

HI Tom, as a newbee my Coach has 1 cut off value under the hood. Where would the 2nd cut off valve be installed and why?
--
1973 26' Canyon Land (Mello Yello) (TZE063v101302)
Los Angeles, CA ('98 NL 2 USA)