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12-20-2014, 03:49 PM
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#41
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"Tinbad ... the Trailer"
1971 25' Tradewind
1965 26' Overlander
Ferndale
, Washington
Join Date: Mar 2011
Posts: 356
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I know this thread is over a year old but I would ask how everyone is doing with either the Attwood or Precision Temp. RV550 (belly pan air duct and roof vent) as I'm nearing
installing one.
Another thing: Is there any reason NOT to add a 6 gal. hot water reservoir?? Assuming
it's a complete shell off and I can plan it in?? Thanks
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12-20-2014, 04:20 PM
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#42
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Rivet Master
1960 33' Custom
Athens
, Georgia
Join Date: Jun 2005
Posts: 1,373
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I sold the trailer that I'd installed the Precision Temp model in so no long term feedback from me but I will again be going this route in my current project which is my endorsement. (I also remembered that it has a cold weather protection function so it shouldn't suffer any freezing weather problems either).
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12-20-2014, 09:35 PM
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#43
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Moderator
2017 26' Flying Cloud
Alamo Heights
, Texas
Join Date: Aug 2006
Posts: 8,525
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Quote:
Originally Posted by Del Gurney
I know this thread is over a year old but I would ask how everyone is doing with either the Attwood or Precision Temp. RV550 (belly pan air duct and roof vent) as I'm nearing
installing one.
Another thing: Is there any reason NOT to add a 6 gal. hot water reservoir?? Assuming
it's a complete shell off and I can plan it in?? Thanks
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What purpose would the hot-water reservoir serve? It seems like that's an expensive way to get back to the same thing as a conventional 6-gal water heater, you'd lose the on-demand/tankless aspect of the thing.
I have a tankless water heater in my home, I think it's great. I wouldn't add a reservoir to it.
__________________
— David
Zero Gravitas — 2017 Flying Cloud 26U | WBCCI# 15566
He has all of the virtues I dislike and none of the vices I admire. — Sir Winston Churchill
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12-20-2014, 10:03 PM
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#44
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Rivet Master
2007 22' International CCD
Corona
, California
Join Date: Jul 2013
Posts: 9,180
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I'm still using my 550 tankless. Took it on a two month run last year, into freezing temperatures. It was wonderful. Wife got to take nice long hot showers. No issues with the heater at all. Absolutely convinced it's the way to go.
My fault we ran out of propane once. Now we carry spares...
I also noticed that my pump does cycle too much with the tankless. The conventional Atwood 6 gallon holds an air bubble that smooths out flow. I'm adding a small surge tank to restore the bubble to the system.
With that minor fix, we both will be happy.
Sent from my pocket Internet using Airstream Forums
__________________
Rich, KE4GNK/AE, Overkill Engineering Dept.
'The Silver HamShack' ('07 International 22FB CCD 75th Anniversary)
Multiple Yaesu Ham Radios inside and many antennae sprouting from roof, ProPride hitch, Prodigy P2 controller.
2012 shortbed CrewMax 4x4 Toyota Tacoma TV with more antennae on it.
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12-21-2014, 08:06 AM
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#45
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"Tinbad ... the Trailer"
1971 25' Tradewind
1965 26' Overlander
Ferndale
, Washington
Join Date: Mar 2011
Posts: 356
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I prefer to shut off the propane when not needed because (despite checking every gas fitting) I notice there is a still an appreciable loss of propane over time. Since doing so I figure I must refill tanks 1/2 as much as I used to.
rmkrum's comment on the surge tank is much appreciated but I think if designed properly I could have 6 gallons of hot (ok warm) water first thing in the AM AND retain the "bubble" to prevent frequent pump cycling.
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12-21-2014, 12:46 PM
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#46
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Rivet Master
2007 22' International CCD
Corona
, California
Join Date: Jul 2013
Posts: 9,180
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One of the things I was looking for on the tankless was 42 pounds less weight forward of the axles on the street side. The tankless responds fast enough that I have hot water in a few seconds...warmish water is not what wife desires....hot water in a tank is a step backwards IMHO.
Sent from my pocket Internet using Airstream Forums
__________________
Rich, KE4GNK/AE, Overkill Engineering Dept.
'The Silver HamShack' ('07 International 22FB CCD 75th Anniversary)
Multiple Yaesu Ham Radios inside and many antennae sprouting from roof, ProPride hitch, Prodigy P2 controller.
2012 shortbed CrewMax 4x4 Toyota Tacoma TV with more antennae on it.
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12-22-2014, 01:47 PM
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#47
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Rivet Master
1995 30' Excella
Bowie
, Maryland
Join Date: Apr 2005
Posts: 2,345
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Since we last discussed it, I saw something in one of the tankless models that turned me off - in freezing weather, it has to fire up every so often to prevent itself from freezing. It makes sense; it just wasn't something I thought of before, and many people don't camp in freezing weather, so they probably wouldn't notice.
Since we do regularly camp in freezing weather, and we don't want to listen to it cycling on and off two or three times an hour while we're trying to sleep, we've decided a regular tank model is the best solution for us when it comes time to replace ours. We can heat the tank of water before we go to bed, then shut it off, and it still won't freeze by morning. Also, it'll be quiet and use zero propane until we fire it up in the morning before our showers. The anti-freeze cycling might even offset any savings in propane we would expect; of course since we turn ours off when we're not using it, we probably wouldn't save much propane with a tankless anyway.
I'm really glad I saw one in operation in freezing weather before we took the plunge - I would've been extremely disappointed. I still think they're interesting technology, but they're just not the best solution for our usage patterns.
__________________
1995 Airstream Classic 30' Excella 1000
2014 Ram 2500 Crew Cab with Cummins 6.7L Diesel
Sold but not forgotten: 1991 Airstream B190
Sold: 2006 F-250 6.0L Powerstroke Supercab
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12-25-2014, 01:07 PM
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#48
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Master of Universe
2008 25' Safari FB SE
Grand Junction
, Colorado
Join Date: Sep 2007
Posts: 12,711
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I thought the regular water heater won't freeze because it is inside the trailer and gets enough heat from the trailer to keep it above freezing. But I suppose if it goes below 0˚ for an extended time it might be an issue. Since most of us turn the water heater on a few times each day and the tank has lots of insulation, it should be ok. And I haven't heard anyone who winter camps reporting frozen water heaters.
Gene
__________________
Gene
The Airstream is sold; a 2016 Nash 24M replaced it.
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06-27-2017, 01:47 PM
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#49
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4 Rivet Member
1972 25' Tradewind
Calgary
, Alberta
Join Date: Jul 2015
Posts: 297
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What are people think of their hot water on demand heaters still?
I asked my RV parts guy and he said he sees more failures from them and generally it means replacing the unit. Traditional water heaters he said you can fix repair and replace parts.
How are they working out? Would you go tankless again??
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06-28-2017, 08:56 AM
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#50
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Rivet Master
Commercial Member
Vintage Kin Owner
Naples
, Florida
Join Date: Dec 2005
Posts: 7,508
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Quote:
Originally Posted by Monza
What are people think of their hot water on demand heaters still?
I asked my RV parts guy and he said he sees more failures from them and generally it means replacing the unit. Traditional water heaters he said you can fix repair and replace parts.
How are they working out? Would you go tankless again??
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YES! Tankless his the ONLY way!!!
__________________
lewster
Solar Tech Energy Systems, Inc.
Victron Solar Components and Inverters, Zamp Solar Panels, LiFeBlue and Battle Born Lithium Batteries, Lifeline AGM Batteries
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06-28-2017, 09:50 AM
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#51
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Rivet Master
2007 22' International CCD
Corona
, California
Join Date: Jul 2013
Posts: 9,180
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Absolutely tankless. Solid performance and happy wife is sufficient reason.
PrecisionTemp 500 series unit.
__________________
Rich, KE4GNK/AE, Overkill Engineering Dept.
'The Silver HamShack' ('07 International 22FB CCD 75th Anniversary)
Multiple Yaesu Ham Radios inside and many antennae sprouting from roof, ProPride hitch, Prodigy P2 controller.
2012 shortbed CrewMax 4x4 Toyota Tacoma TV with more antennae on it.
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