Security Seal Facebook Twitter GooglePlus Pinterest Newsletter Sign-up
The Wall


Joined on September 27, 2009

Last Post on March 22, 2014

Contact User

Recent Posts

1 2 »

Insulating Tanks

@ March 22, 2014 9:15 AM in How should I insulate this tank?

Being the importer and distributor for Effecta boilers nationwide, I have had the opportunity to work with many end users on storage tank arrangements and have determined that insulating a 500/1000/2000 gallon tank with minimum 1.5" thick "Tuff R" polyiso board works great! In fact, right in my local town there are two Effecta users that have this arrangement and its been installed for 3+ years at each location (on tanks that are inside the living space-in a basement).

In Alaska there is another 2 Effecta customers with this arrangement, 1 in Idaho, and so on.

In the beginning (and currently on my Effecta 35kW system for the 5,000 hours of operation) I used blue board with the tanks wrapped in pink fiberglass on the inside of the blue board box). However, I noticed excessive heat loss after a short time and thus removed the pick fiberglass from the tanks and filled up the cavity on all sides with chopped fiberglass insulation and this has worked great.

Yes, if I ever have to access my tanks it will require removal of the chopped fiberglass before doing so and this is why we switched to recommending simply a 1.5" or greater thickness polyiso board. Polyiso board is a very dense foam board with fiberglass strands in it for re-enforcement and typically a black side and a shiny reflective side. We put the shiny reflective side towards the tank to reflect the heat back towards the tank.

It was amazing to us that this worked as well as it has but now that we found something that works were not messing with it.

If you want to discuss further please call my cell at 231.343.3271.


Brian Crawford, Up North Energy
[u][color=#0000ff][/color][/u] Attached Files:


@ February 23, 2014 11:32 AM in Forensic Investigation:

i would like to resurrect this circulator if possible because of the 4 speed function
Will look into magnetic filter, thanks for the info, Ernie.

forensic investigation

@ February 22, 2014 10:29 PM in Forensic Investigation:

Yes, I read that article, that's what started me on my investigation.  I do not want to destroy the pump to get to the bearings.  Will try mild phosphoric acid like coca-cola to dissolve the iron oxide and free up the shaft.  Should be easy to wash out and not be to harsh. 

forensic investigation

@ February 22, 2014 6:43 PM in Forensic Investigation:

Mark I had installed the Alpha Grundfos about 3 years ago and system ran great on Auto until this year.  Noticed that baseboards was not heating properly with the weather we have been having.  Putting it into highest constant pressure mode helped , but still not satisfied , Return line in one  rather long loop is only warm to the touch. Next investigation will be the Alpha, as i understand this might be collecting a lot of iron oxide and restricting the flow. 

forensic investigation

@ February 22, 2014 6:24 PM in Forensic Investigation:

Mark I believe you are correct. I ran a wire down the center of the impeller shaft and it was clogged with black iron oxide.  The shaft is bound up and is hard to turn by hand.  Not sure if that allows water to reach the rear bearing, as I am not ready to destroy the pump to find out.  Unit looks completely sealed except for the hole in the shaft. 

Forensic Investigation:

@ February 22, 2014 4:46 PM in Forensic Investigation:

After being in service for 23 years this pump froze up.  Can you guess what the problem might be? 
Was on a indirect HW tank running @ 2480 rpm's, drawing .81 amps,& 92 watts.  Boiler loop has a Grundfos Alpha running at constant pressure, supplying 4 home run loops of fin-tube baseboard with TR-V's. 

Ultimate Goal

@ May 21, 2013 8:14 PM in Ultimate Goal:

Swei, I agree with you that I would need flows and heads for all loops. 
Another property that I baby-sit has  mono-flow system, 2 stories, one 007 circ,all CI emitters, works well. 
System I am working on has to be repiped to pumping away as now it is pumping into the return.  My thought was to put on a Grundfos Alpha which gives me three mode options to vary the flow rates  It should work or am I missing something.

Ultimate Goal

@ May 20, 2013 10:33 AM in Ultimate Goal:

Investigation revealed that one tenant was also paying for the others DHW.  Long story, but that problem has been fixed. Now would like to fix the last remaining area.

Ultimate Goal

@ May 19, 2013 11:23 PM in Ultimate Goal:

Electrical load is not shared equally between both apts. this causes some discontent  between tenants.

Ultimate Goal

@ May 19, 2013 11:23 PM in Ultimate Goal:

Electrical load is not shared equally between both apts. this causes some discontent  between tenants.

Ultimate Goal:

@ May 19, 2013 4:44 PM in Ultimate Goal:

Drive heating system with only one circulator and constant circulation. Rental house, top floor apt has single loop fin-tube system on own circulator. Heats LR, BR, KIT, and Bathroom, with Taco 007 circ.
1st Flr has monoflow system with CI rads, heating front door hallway entrance for both apts, LR, DR, KIT, and Bathroom off of kitchen,
with the huge red B&G circulator.
Basement BR & Bathroom heated by single loop fin-tube with taco 007 circ.
Current boiler Gas Hydrotherm Atmosphertic.
How would you pipe it, control it, and maintain constant circulation?

Nice new Header, but

@ February 4, 2012 8:42 PM in New V-stat Header

ask your installer to turn the pigtail of the VAPORSTAT 90* so the doughnut hole runs front to back.

Nice new Header, but

@ February 4, 2012 8:42 PM in New V-stat Header

ask your installer to turn the pigtail of the VAPORSTAT 90* so the doughnut hole runs front to back.


@ January 27, 2012 10:50 PM in Joist Bay heating

to all that have responded to my post.  Will be installing this type of system in a front entry way with a marble floor, that is as cold as a morgue, to the touch.  I think it was an after thought to heat  this area with only one hot air vent in a fairly large area.  The fortunate part that iis closed off to the rest of the living space.
Installed Gasification Boiler in winter 2008-2009 to reduce dependence on expensive oil based hot air furnace. Not a fan of hot air heat. The system works exceptionally well using water/air HX in furnace plenum  Some pictures of boiler set up

Fin Tube

@ January 27, 2012 7:18 AM in Joist Bay heating

Steve do you run the tube in a serpentine pattern from bay to bay or a reverse return configuration? 

Joist Bay heating

@ January 26, 2012 5:21 PM in Joist Bay heating

Anybody use fin tube as a heat emitter in floor joist heating, and does it work?

Danfoss TRV"S

@ January 9, 2012 4:27 PM in TRV reccommendation

On fintube convectors, home run system. Have TRV'S on 3 bedroom loops and 1 on combination living room,dining room and kitchen. Boiler contol is a Tekmar 260 with ODR, constant circulation which provides even comfortable heat. 

Another Wallie

@ November 23, 2011 2:48 PM in new residential generator - defective control

who would know about Onan generators I believe would be (Steve Ebels/ Ebels Heatings) .  IIRC they use to rent them out and had the least amount of trouble and were very reliable.  Hasn't posted here recently but does @ as heaterman.  Maybe he will chime in.

Diesel vs NG or Propane

@ November 22, 2011 6:11 PM in new residential generator - defective control

Sal I too would like to know who makes a reliable NG or Propane gen-set.  i wonder what part is unreliable on the sets that are out there, engine, controller, or alternators/generator ends? 
If I had a choice i would go with NG , we have no gas line, hence my choice of diesel .  I can run for 2 weeks on 110+/- gals of diesel. 

Auto exercise

@ November 21, 2011 10:00 PM in new residential generator - defective control

Doug, no it does not transfer it to a load, I would have to do it manually.  So far it has not failed to transfer from utility power to generator power when we have an outage.

Generator Quality

@ November 21, 2011 9:24 PM in new residential generator - defective control

Tony I don't know what a Generac in that KW range goes for, I only know that it was worth every penny I put into it.  Its comming up on 500 hrs of operation that includes the exercise cycles and power outages.  Thats only 100 hrs. per year since it was installed.  Engines are now built in US, they are part of Caterpillar, alternator is Italian product.  Newer ones are even more compact and take up less of a foot print.  They come with  options, fuel subase, sound attenuated enclosures, filter accessories and more.   

Type Alternator

@ November 21, 2011 8:27 PM in new residential generator - defective control

Tony its a 4 pole stator , 1800 rpm
1 2 »