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Re: Gas boiler heating house without call for heat
Yes, with the flow control manually opened the hot water will circulate by gravity. Closing the valve should solve this problem.
You shouldn't need warm start as you have a separate water heater.
Re: Gas boiler heating house without call for heat
Circulation will occur withou pump running if flow control valve is open.
Since you don’t use this boiler for domestic hot water, I recommend shutting g boiler off during non-heating season. No reason to keep heat all that water and dumping heat into the house during summer cooling season.
PC7060
Re: Gas boiler heating house without call for heat
From the other thread;
" We have a three story duplex right outside Philadelphia thats heated by a gas boiler and convectors. Separate gas water heater and gas boiler (Williamson GWA 140N-S, 140K BTU) "
Why is it warm start ?
Also…
Re: Azimuth, Solar Elevation, And Solar Irradiance
you need a solar simulation software to make it quick and easy to do those calculations and comparisons.
RET Screen out if Canada had a powerful, free program with solar calcs
Possibly some freebie at the NREL site also
hot_rod
The Battle Inside Your Boiler: Air vs Steam
In this video, I go over the battle inside your steam system between Steam and Air. I hope this helps you better understand how steam systems operate.
Re: Westwood electrodes
Some of the Carlin Burners had those Jacobs Ladders electrodes. At the gap you would set the electrodes at the normal 1/8". As the burner fan blew combustion air across the electrodes and blew the spark out towards the combustion chamber the gap got wider which as I understand it the wider the gap (within reason) the hotter the spark.
Re: Gas boiler heating house without call for heat
Self inflicted. Opening the flo valve raises the weight, allowing the heated water to gravitate. Closing the valve again will (should) stop it.
HVACNUT
Re: Gas boiler heating house without call for heat
"During refilling and purging, I manually opened the flow control valve. I forgot to close the handle clockwise to return it to automatic operation."
Possibly and probably, if your boiler is warm start, i.e. always hot.
Re: Warren Webster 02H thermostatic radiator traps
Tunstall does this all day. They are located about a mile from where I live.
Re: Near boiler piping/replacement boiler
Thanks for all of your help Ed. It's not cold enough in CT to see if the room temperatures are good, but I expect them to be good.
I figured there will be instances when the boiler run times will still be short, but downfiring to the .85 nozzle has made a big improvement on getting longer run times.
I configured the Hydrostat 3250 to enable the thermal pre-purge so the latent heat in the boiler can be circulated thereby eliminating unnecessary burner firings:
I also disabled the economy feature, and set the differential to 30 to maximize the burner runtime.
I'll do a few more tests once the heating season begins and the boiler is operating under normal heating conditions.
Everyone here has been a tremendous asset with all of your help and suggestions, and I greatly appreciate all of your wisdom and assistance.




