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Steve Garson

Steve Garson

Joined on February 12, 2005

Last Post on January 5, 2014

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Ventilation and cold air

@ January 5, 2014 2:32 PM in Ventilation and cold air

I am using a Fiekd Controls fan-in-can to provide air for my EZ-Gas burning 110,000 BTU/hr. Before it was installed, the basement was not so cool. The feed vent has a damper for when the system is not firing,

Has anyone installed the optional vent kit from Carlin? My hope is to only supply air to the burner instead of the entire room. I cannot find any specs for this Carlin accessory nor anyone that sells it.

Am I making a big deal over nothing?


@ January 1, 2014 1:21 PM in Ice storm problem - help please

Another thought: What would happen if the power failed while you are away on vacation for a week? Prepare for the worst and sleep easy.

Radiant Bedroom heat

@ January 1, 2014 12:05 PM in Two stage T-stat and radiant

No solar gain. Room is on North. We like to sleep at 65 and if we want to relax and use the room in the day, we like 70.


Two stage T-stat and radiant

@ January 1, 2014 10:23 AM in Two stage T-stat and radiant

I have radiant heat in my master suite, which we keep at 65* at night. During the day, we use an electric baseboard to raise the temp to 70*, which has a separate thermostate. We do this, because the mass of the radiant floor leaves the room to warm to sleep. By doing this though, the room is 100% heated by electric, since once the temp rises above 65*, the circulator will obviously never cycle on. So the floor will get cold eventually.

It seems that there might be a better way to handle this?



@ January 1, 2014 10:14 AM in Is Carlin EZ 1 Steam Gas Conversion worth $$$$

Plan on a louder rumble with the gas burner. You'll get used to it. The savings will astound you: both in fuel dollars and maintenance.

EZ-Gas Maintenance

@ January 1, 2014 10:09 AM in EZ-1 Gas Burner or Equivalent Maintenance Survey/Education

I had a technician come in for maintenance and a combustion test. He told me it wasn't necessary if the environment is relatively clean. That every few years is fine.

Against conventional wisdom

@ December 5, 2013 7:19 PM in Circulater for condensate loop off of steam boiler

I just replaced the Taco 007-F5 circulator. I bought a stainless steel 007 as an open box item, though unused, on Ebay for $110.

When I removed the old one, I expected it to be caked in rust. Not at all. Nada. The old one looked almost as good as new. Not a drop of crud on the impeller wheel. Yes, the bearings didn't spin smoothly, but after five years, they still spun easily when I turned them. Could it be the Rhomar treatment from years ago? I doubt it. I only add around 1 gallon of water a year, at most.

I know that it is against conventional wisdom. But I got a bargain and I don't need to worry about it dying for another several years. I guess my boiler, an 8-year old WM SGO-4 runs pretty clean.

Thanks for all the opinions. I'm keeping the one I removed as a backup, since it may have run another couple years, for all I know., Just doing preventative maintenance.

Boston, MA


@ December 1, 2013 12:07 PM in Circulater for condensate loop off of steam boiler

So I should get the stainless steel version so there is no cast iron contacting the water?

Taco 110 - cast iron or stainless steel

@ December 1, 2013 7:53 AM in Circulater for condensate loop off of steam boiler

Looking at the spec sheet for the 110, it says to use bronze for unsealed systems. But the regular model has non-ferrous impeller and bronze sleeve bearings and stainless steel shaft. Is this the correct one to buy? I see some used ones online which make it affordable.

Also, the spec sheet shows that the flange to flange measurement is 1/16" smaller than the 007.


Stainless ?

@ November 30, 2013 3:50 PM in Circulater for condensate loop off of steam boiler

Understanding the shortcomings, and the cost of the right circulator, is there any benefit to replace with stainless? Or should I just replace the cartridge? A bit hard to stomach the cost of the three piece circulator when the installer made it so easy to swap out what is there.

Circulater for condensate loop off of steam boiler

@ November 30, 2013 1:48 PM in Circulater for condensate loop off of steam boiler

I have a condensate loop off my steam boiler with a Taco 007 cast iron circulator that has been in place for five year or so. I notice that the circulator is starting the make a slightly different sound and realize that the original installation should have had a bronze or stainless steel circulator. The water circulates through and Everhot heat exchanger.

I want to avoid losing heat unexpectedly and figure I should replace it with the correct circulator before it seizes. Am I being overly cautious? Can I install a stainless steel 007 with the same cast iron flanges? There is a shut-off valve on each flange.


Steve G.
Newton, MA

Reducing flow rate to Baseboard loop and 3/4-inch capacity

@ July 30, 2013 8:29 AM in Adding second hydronic loop to system

For reducing the flow to my baseboard loop, what is the difference between using a Caleffi QuickSetter, which obviously offers precise control versus using a partially closed ball valve? Also, I was looking at some piping charts and while 4-GPM is the norm for 3/4-inch pipe, the chart shows that the GPM capacity increases as the pipe length decreases. Using primary-secondary piping, that short 3/4-inch primary loop seems to have a capacity of 25-GPM at 12 psi. Since we may need around 6-GPM, this seems safe,


Primary Secondary

@ July 29, 2013 9:48 PM in Adding second hydronic loop to system

Chris, in your piping diagram, are the symbols for just two tees, or a specific fitting like the Taco LoadMatch TwinTee? Dan's books on primary-secondary pumping seem to indicate that just basic Tees can be used if they are spaced less than 6-inches apart.

What do you suggest?


Dumb water

@ July 25, 2013 6:57 AM in Adding second hydronic loop to system

Maybe I am incorrect in calling it primary secondary piping. The one loop I have already, is piped like that and works great. I am adding one more loop.

As I piped it, would all the water go to the one loop with the least resistance when that loop calls for heat...which would be the baseboard loop.

Also, how close can the diverted tees be installed? Space is tight.

Diverter Tee Approach

@ July 25, 2013 6:29 AM in Adding second hydronic loop to system


Just so I can understand, why would BTUs not leave the Everhot with my piping diagram pulling water from the Everhot? There are two circulators that I thought would take the BTUs away, one for each zone. I'm not challenging your design, but interested in understanding the reason. By the way, I appreciate the time you've given me on this project. This thread has become an interesting one in many ways. Do you have a preferred brand of diverter tees?


Heat Loss and Another Circulator?

@ July 24, 2013 2:30 PM in Adding second hydronic loop to system

Chris, The drawing does not display the circulator that feeds the hot water from the steam boiler to the heat exchanger, since that is already installed.  Do I need another?  if so, where?

For heat loss, the building heat loss is 75,000 BTU.  The boiler is steam; WM SGO-4, with a steam rating of 108 MBH and DOE heating capacity of 144MBH.  The steam radiators have a total of 461 square feet of radiation.

Final Piping Design

@ July 24, 2013 11:25 AM in Adding second hydronic loop to system

Attached is the final piping design, based on all the generous pros who have offered their insight.  My boiler, a WG SGO-4 with a Carlin EZ-Gas has plenty of capacity,  On a design day in the cold of the winter, it runs no more than 20% of the time.  Our house is very well insulated and sealed from air leaks.  The boiler size is based on steam radiator EDR, from the days of no insulation and leaky windows.

If anyone has any more suggestions, I would love it.


Piping Approach

@ July 23, 2013 7:48 PM in Adding second hydronic loop to system

Yes, this is primary-secondary piping.  No radiant water is getting to the boiler .I checked the instructions for the Taco mixing valve and see that you are 100% correct.  I am fixing work done by a "pro" who did not install the circulator and mixing valve as you describe. 

I think I finally have all the info I need.  Thanks for catching that error.  I will post a new piping diagram with the final design.  I'm actually going to use a plumber. I've just learned that there are plenty of people who don't truly know what they don't know.


Circulator location

@ July 23, 2013 7:35 PM in Adding second hydronic loop to system


Interesting reading.  Everything I've learned has the circulator located right after the expansion tank & air eliminator.  Is locating it as described in that PDF, downstream from the mixing valve flow, the normal and customary design approach?  Or this this  subject with much debate?


Circulator location

@ July 23, 2013 6:59 PM in Adding second hydronic loop to system

Are you suggesting that the circulator for the radiant should be to the right of the of the mixing valve on my drawing?

Flow rate and BTU

@ July 22, 2013 11:05 PM in Adding second hydronic loop to system

Btu/hr Q = GPM x 500 x Delta-Temp

26,000 BTU = GPM x 500 x 20* = GPM x 10000

GPM = 26,000/10,000 = 2.6 GPM

Everhot RH6 Specs: 35,000 BTU at 6GPM

Delta-Temp = 35,000/(6GPM x 500) = 11.66 delta temp

5GPM gives a 14* delta temp

4GPM gives a 16.5* delta temp

I'm not sure where this is going, since the Everhot specs say there is a 100* rise with 200* water.

Heat load on baseboard loop and radiant loop

@ July 22, 2013 9:23 PM in Adding second hydronic loop to system

For the baseboard loop: 18-feet of baseboard with a heat-loss of 13,000 BTU. This room takes almost no time to warm up after a call for heat.

The radiant loop has 13,000 BTU of heat loss and four loops of Onyx under the floors
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