EcoRenovator  

Go Back   EcoRenovator > Improvements > Geothermal & Heat Pumps
Advanced Search
 


Blog Register 60+ Home Energy Saving Tips Recent Posts Search Today's Posts Mark Forums Read


Reply
 
Thread Tools Display Modes
Old 07-05-12, 09:49 PM   #31
Xringer
Lex Parsimoniae
 
Xringer's Avatar
 
Join Date: Feb 2009
Location: Woburn, MA
Posts: 4,875
Thanks: 106
Thanked 245 Times in 225 Posts
Default

Okay, I guess it is too wordy. I always think of alternative plans as I go along..

I got leery of using the old steel oil-fired boiler.. It's super old and could start leaking,
and we would be without any source of hotwater.

So, the safe route is to use a new tank and install/use the A7 the way it was intended.

It should look somewhat like this, when I'm done..



Here's a pic of someone's install before inserting the HX loop.

__________________
My hobby is installing & trying to repair mini-splits
EPA 608 Type 1 Technician Certification ~ 5 lbs or less..
Xringer is offline   Reply With Quote
Old 07-06-12, 08:29 AM   #32
SimpleManLance
Helper EcoRenovator
 
Join Date: Jan 2011
Location: South-East MI
Posts: 58
Thanks: 1
Thanked 6 Times in 4 Posts
Default

i really like this idea, though in most cases i cant really see its benefits. im anxious to hear how this work out for you though. sounds like it should reduce your oil usage.
__________________
Jack of all trades, master of none.
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
SimpleManLance is offline   Reply With Quote
Old 07-06-12, 09:36 AM   #33
PaleMelanesian
Apprentice EcoRenovator
 
PaleMelanesian's Avatar
 
Join Date: Sep 2008
Location: Texas
Posts: 118
Thanks: 4
Thanked 10 Times in 9 Posts
Default

Quote:
Originally Posted by Xringer View Post
At Lowes, they have this now..

GE GeoSpring 50-Gallon 10-Year Hybrid Electric Heat Pump Water Heater (ENERGY STAR)
Item #: 386797 | Model #: GEH50DEEDSR $999.00
Was: $1,199.00 (Save 16% thru 07/15/2012)

Sears has the same deal, on GE GeoSpring™ Hybrid Water Heater
NEW Item !| | Sears Item# 04232200000 | Model# GEH50DEEDSR

Free???
NStar (power co) is said to be handling out $1,000 Rebates!!
But, they demand "Must be installed by licensed contractor".. No DIY...
That's the new version. It's ~5% more efficient based on the yellow Energy Star tag. I'll happily take that slight loss for half the price.

I'm DIY all the way on this. I had to clear a bunch of space in the crawl space to fit the plumbing. (new location is an add-on so there was a cement wall in the way) Now to start actually running pipes.
PaleMelanesian is offline   Reply With Quote
Old 07-08-12, 11:17 AM   #34
Patrick
Apprentice EcoRenovator
 
Join Date: Jul 2010
Location: East Coast of Florida, USA
Posts: 149
Thanks: 2
Thanked 5 Times in 5 Posts
Default

Xringer, correct me if I'm wrong, but don't the A7 directions say to disconnect the regular heating elements?

Does your boiler have sacrificial anodes to prevent corrosion?
Patrick is offline   Reply With Quote
Old 07-08-12, 02:01 PM   #35
Xringer
Lex Parsimoniae
 
Xringer's Avatar
 
Join Date: Feb 2009
Location: Woburn, MA
Posts: 4,875
Thanks: 106
Thanked 245 Times in 225 Posts
Default

I don't think so. It says disconnect the WH power during install.

On the Ebay page, it says "For maximum savings, it is recommended that the existing water heater be disconnected."

But, using the heating elements might be required if you have company and a few more folks need to take showers..

Seems like you could set the A7 to 125F and set the heaters to 110F..
When the A7 wasn't keeping up with demand, you pay extra..

There is a port on top where the Anode screws in. I'm assuming it's there.
Maybe I'll pry off the plastic cap, cut out the insulation and remove the Anode for inspection.
I think it might need to be well grounded to the tank, so maybe Teflon tape might not be the best way to re-install it..?.

The A7 brackets attach to the water in/out pipes (nipples).

I've already pulled the hot & cold nipple (PITB). I will replace the hot with the special brass nipple from the A7 kit.

The cold nipple is short and has flow restriction (small check-valve), so I'm going to replace that one with a 6" iron nipple.

Using the short (stock) cold water nipple causes the U-bolt clamp to rest
on the connecting cold water input pipe..

Since I'm going to use 3/4" Pex, the extra tall nipple will allow the clamp to rest on iron. (It can be real tight).

Here's my test fit photo.
__________________
My hobby is installing & trying to repair mini-splits
EPA 608 Type 1 Technician Certification ~ 5 lbs or less..

Last edited by Xringer; 07-08-12 at 02:30 PM.. Reason: pic add
Xringer is offline   Reply With Quote
Old 07-08-12, 02:29 PM   #36
Xringer
Lex Parsimoniae
 
Xringer's Avatar
 
Join Date: Feb 2009
Location: Woburn, MA
Posts: 4,875
Thanks: 106
Thanked 245 Times in 225 Posts
Default Notes on nipple removal

Note on nipple removal. In the reviews, I found out that some GE factory nipples leaked, causing product returns.
(Some folks found it very difficult to remove factory nipples).
The A7 requires the hot water nipple to be replaced with the special brass T-nipple included in the kit.


My goal was removing both for them. The cold nipple came right out with the pipe wrench.
But, the hot side was stuck solid. I added a 26" extension handle to the wrench. (1" heavy aluminum tube)
But the whole heater turned when I applied force..

So, I placed a 4 foot aluminum tube on top of the heater, laying it in between the cold nipple and the T&P valve. (on it's smooth side).
That allowed me to pull the two aluminum handles together (like scissors), and remove the stuck nipple.

__________________
My hobby is installing & trying to repair mini-splits
EPA 608 Type 1 Technician Certification ~ 5 lbs or less..
Xringer is offline   Reply With Quote
Old 07-08-12, 02:42 PM   #37
berniebenz
Helper EcoRenovator
 
Join Date: Apr 2012
Location: Gardnerville, NV
Posts: 64
Thanks: 0
Thanked 2 Times in 2 Posts
Default

Quote:
Originally Posted by Xringer View Post

The A7 brackets attach to the water in/out pipes (nipples).

I've already pulled the hot & cold nipple (PITB). I will replace the hot with the special brass nipple from the A7 kit.

The cold nipple is short and has flow restriction (small check-valve), so I'm going to replace that one with a 6" iron nipple.
Why would you use an iron cold line nipple, with the dissimilar metals problem? A ¾ x 6” brass nipple is only about $5.
berniebenz is offline   Reply With Quote
Old 07-08-12, 02:57 PM   #38
berniebenz
Helper EcoRenovator
 
Join Date: Apr 2012
Location: Gardnerville, NV
Posts: 64
Thanks: 0
Thanked 2 Times in 2 Posts
Default

Quote:
Originally Posted by Xringer View Post

But, using the heating elements might be required if you have company and a few more folks need to take showers..

Seems like you could set the A7 to 125F and set the heaters to 110F..
When the A7 wasn't keeping up with demand, you pay extra..
My propane fired DHW is also used, with internal HX, for in-floor radiant system. Therefore my plan is to use an outside thermostat to control the gas fired system. Fire the propane system when outside temp is below set point and in-floor system is calling for heat. This in addition to your idea of setting the A7 to 125F and set the heater to 110F.
berniebenz is offline   Reply With Quote
Old 07-08-12, 03:08 PM   #39
Xringer
Lex Parsimoniae
 
Xringer's Avatar
 
Join Date: Feb 2009
Location: Woburn, MA
Posts: 4,875
Thanks: 106
Thanked 245 Times in 225 Posts
Default anode hex exposed

I popped the anode cap and cut away the foam. There is a hex-head on the tank.
It looks like it's about 1 & 1/16" (1.0625") across. Not a size that I own..

My guess is a 1" socket from Sears will do the trick..
1 in. Socket, 6 pt.- Craftsman-Tools-Mechanics & Auto Tools-Sockets


1" was too small..
Went back, pay another buck and got the 1" & 1/16" socket!
1-1/16 in. Easy-To-Read Socket, 6 pt. STD, 1/2 in. drive- Craftsman-Tools-Mechanics & Auto Tools-Sockets
and it worked fine!!
Attached Thumbnails
Click image for larger version

Name:	anode1inch.jpg
Views:	665
Size:	83.9 KB
ID:	2411  
__________________
My hobby is installing & trying to repair mini-splits
EPA 608 Type 1 Technician Certification ~ 5 lbs or less..

Last edited by Xringer; 07-15-12 at 06:19 PM.. Reason: bad information..
Xringer is offline   Reply With Quote
Old 07-08-12, 03:23 PM   #40
berniebenz
Helper EcoRenovator
 
Join Date: Apr 2012
Location: Gardnerville, NV
Posts: 64
Thanks: 0
Thanked 2 Times in 2 Posts
Default

Or you could just ask GE what, if any, their anode system is, life expectancy, and replacement cost. You did buy a glass lined tank, did you not?

berniebenz is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 03:36 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Ad Management by RedTyger
Inactive Reminders By Icora Web Design