Home » Public Forums » GMCnet » [GMCnet] Tankless water heater
|
|
|
|
|
|
|
|
| Re: [GMCnet] Tankless water heater [message #63004 is a reply to message #62910] |
Tue, 03 November 2009 20:44   |
Chr$
Messages: 2690
Registered: January 2004
Location: Scottsdale, AZ
Karma: 1
|
Senior Member |
|
|
That a gas refrig?
I'm thinking about this too more seriously now...
-Chr$: Perpetual SmartAss
Scottsdale, AZ
77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"
|
|
|
|
| Re: [GMCnet] Tankless water heater [message #63044 is a reply to message #63004] |
Wed, 04 November 2009 02:24 |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
|
Senior Member |
|
|
Hi Chris, yes, it's a 2 way refrig, gas and 110 vac.
Ray
Ray & Lisa Erspamer
78 Royale Center Kitchen
The Malosco Cruiser (TZE368V101144)
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/
________________________________
From: Chris Choffat <cchoffataz@yahoo.com>
To: gmclist@temp.gmcnet.org
Sent: Tue, November 3, 2009 8:44:24 PM
Subject: Re: [GMCnet] Tankless water heater
That a gas refrig?
I'm thinking about this too more seriously now...
--
-Chr$: Perpetual SmartAss
77 Ex-Kingsley 455: The Engineer's Motorhome
Scottsdale, AZ
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
|
|
|
|
| Re: [GMCnet] Tankless water heater [message #63185 is a reply to message #62910] |
Wed, 04 November 2009 23:36 |
Adrien G.
Messages: 474
Registered: May 2008
Location: Burns Flat, OK 73624
Karma: 1
|
Senior Member |
|
|
Ray,
I'm also thinking about this approach to the water heater, but I read in the net that 82 deg. F is max, and that doesn't seem to me to be hot enough, more like lukewarm.
What's the max water temp that you get?
What type of flue vent tube? Would alum clothe dryer vent tube do?
Looking for info to validate my decision.
Adrien & Jenny Genesoto
75 Glenbrook (26-3) Mods LS3.70 FD / Reaction Sys / 80mm Front&Intermidiate / Hydroboost / 16" Tires / Frame Rebuild / Interior Rebuild
Yuba City,Ca. Text 530-nine-3-three-3-nine-nine-6
|
|
|
|
|
|
| Re: [GMCnet] Tankless water heater [message #63209 is a reply to message #63197] |
Thu, 05 November 2009 09:58 |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
|
Senior Member |
|
|
Dan is 100% correct !
When I tested my unit in the basement last February, I was feeding it 40 degree water and was able to get 160 degree water out.
If I spend any time adjusting things, it's to keep the water from being TOO hot.......these babies really heat water and 82 degrees does not fit at all !
Ray
Ray & Lisa Erspamer
78 Royale Center Kitchen
The Malosco Cruiser (TZE368V101144)
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/
________________________________
From: Dan Gregg <gregg_dan@hotmail.com>
To: gmclist@temp.gmcnet.org
Sent: Thu, November 5, 2009 8:18:11 AM
Subject: Re: [GMCnet] Tankless water heater
I can tell you from experience that 82 degree is false. I burned the p--- out of my skin testing our's before we put it in the bath for a shower. Teri uses it for instant coffee.
Dan
--
Dan & Teri Gregg
danandteri.blogspot.com
///Halon Automatic Fire Extinguishers
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
|
|
|
|
| Re: [GMCnet] Tankless water heater [message #63225 is a reply to message #62910] |
Thu, 05 November 2009 11:56 |
rallymaster
Messages: 662
Registered: February 2004
Location: North Plains, ORYGUN
Karma: -4
|
Senior Member |
|
|
How about 82 degrees C?
ronc
On Thu, 5 Nov 2009 07:58:17 -0800 (PST) Ray Erspamer
<78gmc-royale@att.net> writes:
> Dan is 100% correct !
>
> When I tested my unit in the basement last February, I was feeding
> it 40 degree water and was able to get 160 degree water out.
>
> If I spend any time adjusting things, it's to keep the water from
> being TOO hot.......these babies really heat water and 82 degrees
> does not fit at all !
>
> Ray
>
Ron & Linda Clark
1978 Eleganza II
North Plains, ORYGUN
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Ron & Linda Clark
North Plains, ORYGUN
78 Eleganza II
|
|
|
|
| Re: [GMCnet] Tankless water heater [message #63226 is a reply to message #63225] |
Thu, 05 November 2009 12:08 |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
|
Senior Member |
|
|
That would be much more accurate....I would suspect that during my tests if I was feeding in summer time water tank temp water which is approx 70 to 75 degrees, I could have hit 180 easy.
Ray & Lisa Erspamer
78 Royale Center Kitchen
The Malosco Cruiser (TZE368V101144)
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/
________________________________
From: Ronald L Clark <rallymaster@juno.com>
To: gmclist@temp.gmcnet.org
Sent: Thu, November 5, 2009 11:56:47 AM
Subject: Re: [GMCnet] Tankless water heater
How about 82 degrees C?
ronc
On Thu, 5 Nov 2009 07:58:17 -0800 (PST) Ray Erspamer
<78gmc-royale@att.net> writes:
> Dan is 100% correct !
>
> When I tested my unit in the basement last February, I was feeding
> it 40 degree water and was able to get 160 degree water out.
>
> If I spend any time adjusting things, it's to keep the water from
> being TOO hot.......these babies really heat water and 82 degrees
> does not fit at all !
>
> Ray
>
Ron & Linda Clark
1978 Eleganza II
North Plains, ORYGUN
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
|
|
|
|
| article on tankless water heater [message #63235 is a reply to message #63226] |
Thu, 05 November 2009 15:16 |
bukzin
Messages: 840
Registered: April 2004
Location: North California
Karma: 0
|
Senior Member |
|
|
Thought this may be of interest.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Tankless water heaters
They're efficient but not necessarily economical
Tankless water heaters
Heating water accounts for up to 30 percent of the average home's energy budget. Some makers of gas-fired tankless water heaters claim their products can cut your energy costs up to half over regular storage heaters. So is it time to switch?
Probably not. Gas tankless water heaters, which use high-powered burners to quickly heat water as it runs through a heat exchanger, were 22 percent more energy efficient on average than the gas-fired storage-tank models in our tests. That translates into a savings of around $70 to $80 per year, based on 2008 national energy costs. But because they cost much more than storage water heaters, it can take up to 22 years to break even—longer than the 20-year life of many models. Moreover, our online poll of 1,200 readers revealed wide variations in installation costs, energy savings, and satisfaction.
With the help of an outside lab, we pitted Takagi and Noritz gas-fired tankless water heaters against three storage water heaters. We didn't test electric tankless heaters because many can't deliver hot water fast enough to replace a conventional water heater if groundwater is cold. Even in areas with warm groundwater, most homeowners would need to upgrade their electrical service to power a whole-house tankless model.
Our tests simulated daily use of 76 to 78 gallons of hot water. That's the equivalent of taking three showers, washing one laundry load, running the dishwasher once (six cycles), and turning on the faucet nine times, for a total of 19 draws. While that's considered heavy use compared with the standard Department of Energy test, we think it more accurately represents an average family's habits. We also ran more than 45,000 gallons of very hard water through a tanked model and a Rinnai tankless model to simulate about 11 years of regular use.
Here's what else we found:
Water runs hot and cold
Manufacturers of tankless water heaters are fond of touting their products' ability to provide an endless amount of hot water. But inconsistent water temperatures were a common complaint among our poll respondents. When you turn on the faucet, tankless models feed in some cold water to gauge how big a temperature rise is needed. If there's cool water lingering in your pipes, you'll receive a momentary "cold-water sandwich" between the old and new hot water. And a tankless water heater's burner might not ignite when you try to get just a trickle of hot water for, say, shaving.
Nor do tankless water heaters deliver hot water instantaneously. It takes time to heat the water to the target temperature, and just like storage water heaters, any cold water in the pipes needs to be pushed out. And tankless models' electric controls mean you'll also lose hot water during a power outage.
Up-front costs are high
The tankless water heaters we tested cost $800 to $1,150, compared with $300 to $480 for the regular storage-tank types. Tankless models need electrical outlets for their fan and electronics, upgraded gas pipes, and a new ventilation system. That can bring average installation costs to $1,200, compared with $300 for storage-tank models.
Tankless units might need more care
During our long-term testing, an indicator on the tankless model warned of scale buildup. We paid $334 for special valves and a plumber to flush out the water heater with vinegar. Many industry pros recommend that tankless models be serviced once a year by a qualified technician. Calcium buildup can decrease efficiency, restrict water flow, and damage tankless models. Experts suggest installing a water softener if your water hardness is above 11 grains per gallon. Ignoring this advice can shorten your warranty.
Efficient storage models are pricey
We also tested the $1,400 Vertex, a high-efficiency storage water heater by A.O. Smith. The manufacturer claims its installation costs are similar to a regular storage model. But its high cost offsets much of the roughly $70 per year the Vertex will save you. Instead, we recommend buying a conventional storage water heater with a 9- or 12-year warranty. In previous tests, we found that those models generally had thicker insulation, bigger burners or larger heating elements, and better corrosion-fighting metal rods called anodes.
Bukzin
1977 Palm Beach
|
|
|
|
| Re: article on tankless water heater [message #63238 is a reply to message #63235] |
Thu, 05 November 2009 15:29 |
pzerkel
Messages: 212
Registered: September 2007
Location: Salisbury, IL
Karma: 0
|
Senior Member |
|
|
>>Up-front costs are high<<
While that is most certainly true for the home style tankless water heaters, it seems to me the opposite is in fact the case for the RV market.
I believe most of the tankless water heaters that have been installed in GMCs are widely available for $200 more or less. And it appears to me that a 6 gallon Atwood RV hot water heater runs $280-$380 (electronic ignition making it on the high end).
I also do not know the cost of a stainless steel tank for the OEM GMC WH, but I believe it to be greater than the cost of the tankless Water heaters that Ray, Dan, et al are using in their GMC's.
Paul Zerkel
'78 Eleganza II
Salisbury IL (near Springfield)
|
|
|
|
| Re: [GMCnet] article on tankless water heater [message #63239 is a reply to message #63238] |
Thu, 05 November 2009 15:47 |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
|
Senior Member |
|
|
I agree that the initial cost on the RV tankless heaters like the ones we're using are lower, I paid $180 for mine on Ebay.....however, if you buy a Precision that will fit into the opening of the standard tank heaters, those run in the $900 range.
As far as Lime Scale......for how much water we use........I think I'll be pushing up daisies before it limes up.
They also mentioned hot vs warm "gaps" in the flow. When we shower, we have a switch on our shower head....we wet down, shut off the water, wash, turn on the shower head and rinse. We've not noticed any gaps in the flow with cold or luke warm water. I suppose if you dilly dally for 15 minutes you would, but we have not experienced that problem.
Ray
Ray & Lisa Erspamer
78 Royale Center Kitchen
The Malosco Cruiser (TZE368V101144)
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/
________________________________
From: Paul Zerkel <gmc2@zerkelhome.com>
To: gmclist@temp.gmcnet.org
Sent: Thu, November 5, 2009 3:29:54 PM
Subject: Re: [GMCnet] article on tankless water heater
>>Up-front costs are high<<
While that is most certainly true for the home style tankless water heaters, it seems to me the opposite is in fact the case for the RV market.
I believe most of the tankless water heaters that have been installed in GMCs are widely available for $200 more or less. And it appears to me that a 6 gallon Atwood RV hot water heater runs $280-$380 (electronic ignition making it on the high end).
I also do not know the cost of a stainless steel tank for the OEM GMC WH, but I believe it to be greater than the cost of the tankless Water heaters that Ray, Dan, et al are using in their GMC's.
--
Paul Zerkel
'78 Eleganza II
Salisbury IL (near Springfield)
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
|
|
|
|
|
|
|
|
| Re: [GMCnet] article on tankless water heater [message #63326 is a reply to message #63309] |
Fri, 06 November 2009 19:21 |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
|
Senior Member |
|
|
My tankless heater is only 5.5" deep, doesn't take much room. Considering the coach side already has a radius which keeps the bottom of the reefer further away from the wall than the top, it doesn't take much. To get the tankless duct up past the top edge of the reefer, I formed the duct from round into an oval.....only needed about 2" of clearance to get it through between the top edge of the reefer and the wall.
Ray
Ray & Lisa Erspamer
78 Royale Center Kitchen
The Malosco Cruiser (TZE368V101144)
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/
________________________________
From: rhusak <rhusak@compuserve.com>
To: gmclist@temp.gmcnet.org
Sent: Fri, November 6, 2009 4:24:07 PM
Subject: Re: [GMCnet] article on tankless water heater
Hey Guy's..
I wonder if this could be done with the reefer only slid forward?
Ron
--
76 Eleganza II
Conifer, CO
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
|
|
|
|
|
|
|
|
| Re: [GMCnet] Tankless water heater [message #63359 is a reply to message #62910] |
Sat, 07 November 2009 10:25 |
Chr$
Messages: 2690
Registered: January 2004
Location: Scottsdale, AZ
Karma: 1
|
Senior Member |
|
|
Ray,
It states it is for Natural Gas. Did it come with an orifice for LPG or did you have to get one separately?
-Chr$: Perpetual SmartAss
Scottsdale, AZ
77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"
|
|
|
|
Goto Forum:
Current Time: Mon Nov 18 21:45:26 CST 2024
Total time taken to generate the page: 0.02443 seconds
|
GMCforum
Search
Help
Register
Login
Home
