Best Of
Re: cast iron boiler summer settings
I don't promote this idea due to some fantastic savings, but rather for the simplicity and separation.
However, if you do want fantastic savings, then install a "hybrid" heat-pump water heater which often comes with substantial incentives from state government and/or utility
PS: the homeowner in your story was actually astonished by the cost to heat water with electricity? It should have been about $500 per year especially back then.
Re: Balancing
Its probably a trap issue of some sort. Start the boiler up when cold and follow the piped. Something changed. The work that was done is likely the cause. Maybe they gave you some wrong trap elements.
Re: Balancing
Perhaps now that all the leaks are fixed, the air can not get out as it used to.
Any air vents at the end of main or is there a receiver pump that might not be piped correctly so as to vent air?
Re: Slantfin VHS-150 EP Aquastat
Not sure what this means;
" i added heat pumps and besides winter it’s only supplying heat to hot water, and the low diff that is hard set on the Honeywell has it eating through propane for no reason 9 months of the year. "
The heat pumps supply your DHW (Domestic Hot Water) ? The boiler supplies your DHW ? Some other appliance supplies your DHW ?
Did the boiler supply the DHW at some point in time ?
Anyway, shut OFF the Boiler's and / or the system's power, All the power OFF !!! Remove the screw from the relay (Red circle) it does not belong there, and put it back where it belongs (Orange arrow) and secure it. Secure the screw at the Blue circle so it does not fall out. Restore the power. See if your problem goes away.
Re: Hot Water Recirculating system?
I set mine up with the intention of adding a pump if needed, however it has performed quite well.
My summer WH NG uses 23-25 CCF a month, about $35 a month.
Would I save 10% a month with the $400 investment? Don't know…..actually don't care. Old guy here……like to keep things simple.
Re: Alternate means of hydronic heating a room that is kept cool, but occasionally needs to be warmed up
It was some Grainger/Dayton unit heater I got off of e-bay that someone had sitting in a box somewhere for a long time so I'm not sure the model but it is the ones that are rated for steam and hot water so it has a core and tanks instead of just a long finned tube. It would be loud if it were in my living room but it is fine just under the collar ties in my garage.
Re: Alternate means of hydronic heating a room that is kept cool, but occasionally needs to be warmed up
baseboard or panels aren't just radiant, they have a significant convective element. a convector cabinet can have a pretty high passive output but they generally need higher temp water for good output.
Why Your Classroom Unit Ventilator Blows Cold Air and Why Thats Normal, this weeks video
The unit ventilator or univent is one of the most confused hated components in a heating system. Hope you enjoy it.
Re: Alternate means of hydronic heating a room that is kept cool, but occasionally needs to be warmed up
panel radiators if you only have low temp water available
fin tube baseboard or a hydronic unit heater if you have high temp water available.


