Best Of
Re: Snow melt slab insulation
it's not ground heat that rises, heat does not rise, hot air rises. Heat moves to cold, the rate of that heat transfer is partially dictated by the delta T. so while the ground temp of lets say 50f is warmer than the unheated slab temp of lets say 20f, when you put a heated slab into the equation the heat from the tubing approx 110f is greater than the 50f below and will also want to transfer to the ground, wasting your BTUs, the thermal break from the insulation helps reduce that unwanted heat transfer into the ground, and direct the BTUs to where you want it, the slab. So while the contractor in question might feel better about it, in reality he just wants to save a few bucks on install, cost his customers more money, and made up a story about the heat from the ground helping melt the snow to make himself feel better about it. This isn't even taking into account that generally the ground at the level of the tubing is not really 50f either its closer to air temp
GGross
Re: B & G Dou - Flo Valve??? Main loop Supply/ Return and Secondary loop Supply / Return
It's a mixer for primary secondary piping. See Idronics 7 for more details. Paging @hot_rod as Caleffi probably has a replacement.
Re: Experience I had with a boiler tech and what I learned along the way.
Don't know what your CO2 is but it should be around 8%. Looking at your O2 your are probably OK. Looks like a Crane boiler with the old CI burners.
In the 5th picture down the burner air shutters look closed. I assume this was a B4 picture??
Sad that you couldn't get a professional to even try and fix this.
Unfortunately, it is the times we live in.
Re: Experience I had with a boiler tech and what I learned along the way.
Michigan. They could have just brushed my boiler and made probably a grand or so then would have also had my business for the aquastat I just replaced but instead I'll just get help from the fine people on sites like this and do it my self.
mo8414
Re: Another Honeywell Heat Generator
that is sort of like calling an abatement company to remove a toaster that has asbestos in it instead of just carrying it outside.
or in this case plugging the tapings and carrying it outside.
mattmia2
Re: Another Honeywell Heat Generator
Aren't those supposed to be at the bottom of the system? 🤔
Re: Loud radiators - first “shoulder season” night
ok I’ll play with the pitch for the gurgling one
The rest I assume the metallic ticking is thermal expansion and not much I can do there
Re: Furnace playing games
Most techs don't know the system at all,
The ongoing sad story everywhere………………………………
LRCCBJ
Re: Advice on a solution to leaking radiator; painting a previously painted cast iron radiator
There are plenty for sale on CraigsList or Facebook Marketplace. Maybe you can find one matching the size you need locally or near buy.
The one you have there is nothing special. And the cost to make it smaller is probably more than it's worth.
They usually sell fairly cheaply. Unless you can do your own work, you'll have to find someone knowledgeable to handle and install it.
If you'd like to keep the one you have, see if the "rebuilder of radiators" knows someone who will handle its delivery and installation. That's not a very big or heavy radiator as radiators go for someone familiar with these things.
